Tropical
Cyclones
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Tropical Cyclone GEORGE [Australian Region][South Indian Ocean][South Pacific Ocean][Southern Hemisphere][Summaries and Track Data] |
WTXS21 PGTW 20070302 22:30z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE FORMATION ALERT 022221Z MAR 07// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 100 NM EITHER SIDE OF A LINE FROM 13.3S 131.9E TO 13.7S 127.9E WITHIN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY ISSUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 25 TO 30 KNOTS. METSAT IM- AGERY, SYNOPTIC DATA AND RADAR DATA AT 022030Z INDICATE THAT A CIRCULATION CENTER IS LOCATED NEAR 13.4S 131.1E. THE SYSTEM IS MOVING WESTWARD AT 08 KNOTS. 2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 12.9S 131.5E IS NOW LOCATED NEAR 13.4S 131.1E, APPROXIMATELY 60 NM SOUTH- SOUTHEAST OF DARWIN, AUSTRALIA. RECENT INFRARED SATELLITE IMAGERY AND SYNOPTIC OBSERVATIONS SHOW DEEP CONVECTION FLARING ON THE WESTERN PERIPHERY OF A CONSOLIDATING LOW LEVEL CIRCULATION CENTER. ANIMATED RADAR IMAGERY FROM KATHERINE, AUSTRALIA INDICATES THAT THE CIRCULATION REMAINS OVER LAND BUT IS CONTINUING TO TRACK WESTWARD TOWARDS THE TIMOR SEA. UPPER LEVEL ANALYSIS REVEALS FAVORABLE OUTFLOW ALOFT, BUT MODERATE AND DECREASING VERTICAL WIND SHEAR. MAXIMUM SUS- TAINED SURFACE WINDS ARE ESTIMATED AT 25 TO 30 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 997 MB. DUE TO THE DECREASING VERTICAL WIND SHEAR AND THE EXPECTED TRACK OVER WATER, THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS GOOD. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 032230Z.// ========================================================================= WTXS31 PGTW 20070203 15:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ REF/A/NAVPACMETOCCEN PEARL HARBOR HI/022221Z MAR 07// AMPN/TROPICAL CYCLONE FORMATION ALERT// 1. TROPICAL CYCLONE 17S WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 031200Z --- NEAR 14.3S 129.3E MOVEMENT PAST SIX HOURS - 245 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 034 KT WINDS - 030 NM NORTHEAST QUADRANT OVER WATER 030 NM SOUTHEAST QUADRANT OVER WATER 040 NM SOUTHWEST QUADRANT OVER WATER 040 NM NORTHWEST QUADRANT REPEAT POSIT: 14.3S 129.3E --- FORECASTS: 12 HRS, VALID AT: 040000Z --- 14.5S 128.3E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT OVER WATER 025 NM SOUTHWEST QUADRANT OVER WATER 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT OVER WATER 050 NM SOUTHWEST QUADRANT OVER WATER 055 NM NORTHWEST QUADRANT OVER WATER VECTOR TO 24 HR POSIT: 275 DEG/ 09 KTS --- 24 HRS, VALID AT: 041200Z --- 14.4S 126.5E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT VECTOR TO 36 HR POSIT: 275 DEG/ 09 KTS --- 36 HRS, VALID AT: 050000Z --- 14.2S 124.6E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT OVER WATER 085 NM SOUTHWEST QUADRANT OVER WATER 080 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 270 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 051200Z --- 14.2S 122.5E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 095 NM NORTHWEST QUADRANT --- REMARKS: 031500Z POSITION NEAR 14.3S 129.0E. TROPICAL CYCLONE (TC) 17S (NONAME), LOCATED APPROXIMATELY 145 NM SOUTHWEST OF DARWIN, AUSTRALIA, HAS TRACKED WEST-SOUTHWESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. RECENT RADAR IMAGERY FROM DARWIN, AUSTRALIA AND A 031129Z SSMIS MICROWAVE IMAGE INDICATE THAT THE LOW LEVEL CIRCULATION CENTER HAS MOVED INTO THE EASTERN JOSEPH BONAPARTE GULF. TC 17S HAS TRACKED GENERALLY SOUTHWESTWARD OVER WESTERN ARNHEM LAND OVER THE PAST SEVERAL DAYS UNDER THE STEERING INFLUENCE OF A SUBTROPICAL RIDGE ANCHORED OVER CENTRAL AUSTRALIA. THE STORM IS FORECAST TO TURN WESTWARD AS THIS RIDGING REORIENTS AND A SECOND SUBTROPICAL RIDGE ANCHORED WEST OF AUSTRALIA EXERTS A STRONGER STEERING INFLUENCE DURING THE FORECAST PERIOD. THE SYSTEM REMAINS NORTH OF THE UPPER LEVEL RIDGE AXIS UNDER MODERATE VERTICAL WIND SHEAR, BUT IS EXPECTED TO INTENSIFY DUE TO GOOD POLEWARD AND EQUATORWARD OUTFLOW AND DECREASING VERTICAL WIND SHEAR AS THE UPPER LEVEL PATTERN BECOMES MORE FAVORABLE DURING THE NEXT 12 TO 24 HOURS. THE STORM WILL INTENSIFY OVER WARM WATER THROUGH TAU 12 BEFORE CROSSING AND WEAKENING SLIGHTLY OVER THE NORTHERN KIMBERLY COAST. TC 17S IS THEN EXPECTED TO INTENSIFY AT A CLIMATOLOGICAL RATE AFTER REEMERGING OVER WATER BETWEEN TAU 24 AND TAU 36. THIS WARNING SUPERSEDES AND CANCELS REF A, NAVPACMETOCCEN 022221Z MAR 07 TROPICAL CYCLONE FORMATION ALERT ========================================================================= WTXS31 PGTW 20070304 03:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 002 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 040000Z --- NEAR 14.5S 128.6E MOVEMENT PAST SIX HOURS - 260 DEGREES AT 05 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT OVER WATER 070 NM SOUTHWEST QUADRANT OVER WATER 070 NM NORTHWEST QUADRANT REPEAT POSIT: 14.5S 128.6E --- FORECASTS: 12 HRS, VALID AT: 041200Z --- 14.5S 126.9E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT VECTOR TO 24 HR POSIT: 270 DEG/ 11 KTS --- 24 HRS, VALID AT: 050000Z --- 14.4S 124.7E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT OVER WATER 080 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 275 DEG/ 12 KTS --- 36 HRS, VALID AT: 051200Z --- 14.2S 122.3E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 015 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 095 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 265 DEG/ 13 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 060000Z --- 14.3S 119.6E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT --- REMARKS: 040300Z POSITION NEAR 14.5S 128.2E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 175 NM SOUTHWEST OF DARWIN, AUSTRALIA, HAS TRACKED WEST- WARD AT 05 KNOTS OVER THE PAST SIX HOURS. RECENT ANIMATED RADAR IMAGERY FROM WYNDHAM, AUSTRALIA AND A 032319Z SSMI IMAGE SHOW THAT A WELL DEVELOPED LOW LEVEL CIRCULATION CENTER (LLCC) CONTINUES TO TRACK WESTWARD ACROSS THE JO- SEPH BONAPARTE GULF. TC 17S WILL TRACK WESTWARD UNDER THE INFLUENCE OF A BUILDING SUBTROPICAL RIDGE TO THE SOUTHWEST. TC 17S WILL MAINTAIN INTENSITY AS THE LLCC CROSSES THE EX- TREME NORTHERN KIMBERLY COAST. AFTER TAU 12, THE SYSTEM WILL RESUME INTENSIFICATION AT A CLIMATOLOGICAL RATE THROUGH THE REMAINDER OF THE FORECAST PERIOD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 040000Z IS 14 FEET. NEXT WARNINGS AT 041500Z AND 050300Z.// ========================================================================= WTXS31 PGTW 20070304 15:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 041200Z --- NEAR 14.3S 127.2E MOVEMENT PAST SIX HOURS - 280 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT REPEAT POSIT: 14.3S 127.2E --- FORECASTS: 12 HRS, VALID AT: 050000Z --- 14.4S 125.5E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT OVER WATER 030 NM SOUTHEAST QUADRANT OVER WATER 030 NM SOUTHWEST QUADRANT OVER WATER 060 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 270 DEG/ 14 KTS --- 24 HRS, VALID AT: 051200Z --- 14.3S 122.7E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 270 DEG/ 14 KTS --- 36 HRS, VALID AT: 060000Z --- 14.4S 119.8E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT RADIUS OF 064 KT WINDS - 015 NM NORTHEAST QUADRANT 015 NM SOUTHEAST QUADRANT 015 NM SOUTHWEST QUADRANT 015 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 095 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 270 DEG/ 14 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 061200Z --- 14.4S 116.9E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 095 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT --- REMARKS: 041500Z POSITION NEAR 14.3S 126.8E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 255 NM WEST-SOUTHWEST OF DARWIN, AUSTRALIA, HAS TRACKED WESTWARD AT 07 KNOTS OVER THE PAST SIX HOURS. RECENT ANIMATED INFRARED IMAGERY AND RADAR IMAGERY FROM WYNDHAM, AUSTRALIA SHOW THAT THE LOW LEVEL CIRCULATION HAS SUBSTANTIALLY WEAKENED OVER THE PAST 06 HOURS AS IT HAS MOVED OVER LAND. THE BANDING EYE PREVIOUSLY SEEN IN MICROWAVE IMAGERY IS NO LONGER VISIBLE ON A 041154Z SSMI PASS. THE STORM CONTINUES TO TRACK WESTWARD ON THE NORTHERN PERIPHERY OF THE SUBTROPICAL RIDGE ANCHORED OVER WESTERN AUSTRALIA. THIS MOTION WILL CONTINUE THROUGH 48 HOURS AS THE RIDGE MAINTAINS. TC 17S WILL RE-INTENSIFY AFTER MOVING BACK OVER WATER AROUND TAU 12, WITH THIS TREND CONTINUING THROUGHOUT THE FORE- CAST PERIOD. NEXT WARNINGS AT 050300Z AND 051500Z.// ========================================================================= WTXS31 PGTW 20070305 03:00z NAVOCEANO STENNIS SPACE CENTER MS//N16// MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 004 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 050000Z --- NEAR 14.4S 125.4E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT RADIUS OF 034 KT WINDS - 055 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT OVER WATER 055 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT REPEAT POSIT: 14.4S 125.4E --- FORECASTS: 12 HRS, VALID AT: 051200Z --- 14.4S 123.3E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 270 DEG/ 13 KTS --- 24 HRS, VALID AT: 060000Z --- 14.3S 120.7E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 270 DEG/ 14 KTS --- 36 HRS, VALID AT: 061200Z --- 14.3S 117.9E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 140 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 260 DEG/ 15 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 070000Z --- 14.7S 114.9E MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 150 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT --- REMARKS: 050300Z POSITION NEAR 14.4S 124.9E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 530 NM NORTHEAST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED WESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. THE SYSTEM HAS INTENSIFIED LESS THAN CLIMATOLOGICAL RATE OVER THE LAST TWELVE HOURS. RECENT INFRARED IMAGERY AND ANIMATED RADAR IMAGERY FROM WYNDHAM, AUSTRALIA SHOW THAT THE LOW LEVEL CIRCULATION HAS MOVED OFF SHORE. THROUGHOUT THE FORECAST PERIOD, TC 17S WILL CONTINUE TO TRACK WESTWARD ON THE NORTHERN PERIPHERY OF THE SUBTROPICAL RIDGE ANCHORED OVER WESTERN AUSTRALIA. UPPER LEVEL ANALYSIS INDICATES A GOOD EQUATORWARD OUTFLOW CHANNEL AND A DEVELOPING POLEWARD OUTFLOW CHANNEL WHICH WILL ALLOW INTENSIFICATION AT A CLIMATOLOGICAL RATE THROUGH THE FORECAST PERIOD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 050000Z IS 14 FEET. NEXT WARNINGS AT 051500Z AND 060300Z.// ========================================================================= WTXS31 PGTW 20070305 15:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 005 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 051200Z --- NEAR 14.4S 124.2E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 05 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT REPEAT POSIT: 14.4S 124.2E --- FORECASTS: 12 HRS, VALID AT: 060000Z --- 14.5S 122.2E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 265 DEG/ 11 KTS --- 24 HRS, VALID AT: 061200Z --- 14.6S 120.0E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 265 DEG/ 11 KTS --- 36 HRS, VALID AT: 070000Z --- 14.7S 117.7E MAX SUSTAINED WINDS - 080 KT, GUSTS 100 KT RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 130 NM NORTHEAST QUADRANT 140 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 130 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 260 DEG/ 12 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 071200Z --- 15.2S 115.3E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 064 KT WINDS - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 075 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 140 NM NORTHEAST QUADRANT 150 NM SOUTHEAST QUADRANT 150 NM SOUTHWEST QUADRANT 140 NM NORTHWEST QUADRANT --- REMARKS: 051500Z POSITION NEAR 14.4S 123.7E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 480 NM NORTHEAST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED WESTWARD AT 05 KNOTS OVER THE PAST SIX HOURS. THE SYSTEM HAS BEEN SLOW TO REORGANIZE IN THE 12 HOURS SINCE IT HAS MOVED BACK OVER WATER. HOWEVER, RECENT ANIMATED INFRARED SATELLITE IMAGERY AND A 051139Z SSMI PASS INDICATE THAT THE SYSTEM IS FINALLY BEGINNING TO RE-INTENSIFY. UPPER LEVEL ANALYSIS INDICATES THAT TC 17S IS LOCATED TO THE WEST OF A 200 MB ANTICYCLONE AND HAS LOST A PREVIOUSLY STRONG POLEWARD OUTFLOW CHANNEL, ALTHOUGH EQUATORWARD OUTFLOW PERSISTS. IN ADDITION, THE SYSTEM IS ENCOUNTERING MODERATE VERTICAL WIND SHEAR, WHICH IS ALSO INHIBITING A MORE RAPID INTENSIFICATION. THE SYSTEM CONTINUES TO TRACK WESTWARD AS IT IS STEERED BY THE STRONG SUBTROPICAL RIDGE TO ITS SOUTH. THIS WESTWARD TRACK WILL PERSIST UNTIL TAU 36, AT WHICH TIME THE STORM WILL BEGIN TO TAKE A SLIGHT SOUTHWESTWARD TURN AS A DEEP MIDLATITUDE TROUGH OFF THE WEST COAST OF AUSTRALIA WILL BEGINS TO IMPINGE ON THE STEERING RIDGE. THE MODERATE SHEAR ENVIRONMENT AND LACK OF A POLEWARD OUTFLOW CHANNEL WILL TEMPER INTENSIFICATION FOR THE FIRST 24-36 HOURS. AS THE MIDLATITUDE TROUGH APPROACHES NEAR THE END OF THE FORECAST PERID A POLWARD OUTFLOW CHANNEL WILL RE- ESTABLISH. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 051200Z IS 17 FEET. NEXT WARNINGS AT 060300Z AND 061500Z.// ========================================================================= WTXS31 PGTW 20070306 03:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 006 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 060000Z --- NEAR 14.6S 122.1E MOVEMENT PAST SIX HOURS - 265 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT REPEAT POSIT: 14.6S 122.1E --- FORECASTS: 12 HRS, VALID AT: 061200Z --- 14.8S 119.9E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 265 DEG/ 12 KTS --- 24 HRS, VALID AT: 070000Z --- 15.1S 117.4E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 095 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 260 DEG/ 11 KTS --- 36 HRS, VALID AT: 071200Z --- 15.5S 115.1E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 240 DEG/ 11 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 080000Z --- 16.5S 113.1E MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 070 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 070 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 135 NM SOUTHEAST QUADRANT 135 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT --- REMARKS: 060300Z POSITION NEAR 14.6S 121.6E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 395 NM NORTH-NORTHEAST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED WESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. TC 17S CONTINUES TO TRACK GENERALLY WESTWARD ALONG THE NORTHERN PERIPHERY OF A SUBTROPICAL RIDGE ANCHORED ON THE WEST COAST OF AUSTRALIA. THIS MOTION IS EXPECTED TO CONTINUE THROUGH TAU 36. THEREAFTER, A MIDLATITUDE TROUGH APPROACHING FROM THE SOUTHWEST IS FORECAST TO INDUCE A WEAKNESS IN THE STEERING RIDGE AND ALLOW THE STORM TO TAKE A POLEWARD TURN BETWEEN TAU 36 AND TAU 48. TC 17S HAS MAINTAINED INTENITY OVER THE PAST 12 HOURS IN RESPONSE TO THE COMPETING INFLUENCES OF MODERATE VERTICAL WIND SHEAR AND FAVORABLE EQUATOR- WARD OUTFLOW. HOWEVER, THE STORM IS EXPECTED TO INTENSIFY AT A CLIMATOLOGICAL RATE THROUGH TAU 36 AS IT MOVES INTO A LOWER VER- TICAL WIND SHEAR ENVIRONMENT ASSOCIATED WITH UPPER LEVEL RIDGING TO THE SOUTH AND WEST. ENHANCED POLEWARD OUTLFLOW INDUCED BY THE APPROACHING MIDLATITUDE TROUGH WILL ALLOW THE STORM TO INTENSIFY MORE RAPIDLY BETWEEN TAU 36 AND TAU 48, AS THE CURRENT FORECAST REFLECTS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 060000Z IS 22 FEET. NEXT WARNINGS AT 061500Z AND 070300Z.// ========================================================================= WTXS31 PGTW 20070306 15:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 007 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 061200Z --- NEAR 14.8S 120.8E MOVEMENT PAST SIX HOURS - 265 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT REPEAT POSIT: 14.8S 120.8E --- FORECASTS: 12 HRS, VALID AT: 070000Z --- 15.0S 118.8E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 070 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 250 DEG/ 11 KTS --- 24 HRS, VALID AT: 071200Z --- 15.7S 116.7E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 245 DEG/ 11 KTS --- 36 HRS, VALID AT: 080000Z --- 16.7S 114.6E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 230 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 081200Z --- 17.9S 113.0E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 120 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 125 NM SOUTHWEST QUADRANT 120 NM NORTHWEST QUADRANT --- REMARKS: 061500Z POSITION NEAR 14.8S 120.3E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 355 NM NORTH-NORTHEAST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED WESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. TC 17S CONTINUES TO TRACK GENERALLY WESTWARD ALONG THE NORTHERN PERIPHERY OF A SUBTROPICAL RIDGE ANCHORED OVER THE WEST COAST OF AUSTRALIA. THIS MOTION IS EXPECTED TO CONTINUE THROUGH TAU 36. A MIDLATITUDE TROUGH APPROACH- ING FROM THE SOUTHWEST IS FORECAST TO INDUCE A WEAKNESS IN THE STEERING RIDGE, WHICH WILL ALLOW THE STORM TO TAKE A POLEWARD TURN AND TRACK SOUTHWESTWARD AROUND THE NORTHWESTERN PERIPHERY OF THE SUBTROPICAL RIDGE THROUGH THE REMAINDER OF THE FORECAST PERIOD. TC 17S HAS DECREASED IN INTENSITY OVER THE PAST 12 HOURS AS IT CONTINUES TO RE-ORGANIZE AND VERTICAL WIND SHEAR OVER THE SYSTEM REMAINS MODERATE. VERTICAL WIND SHEAR HAS DECREASED OVER THE PAST 12 HOURS AND THE STORM CONTINUES TO EXPERIENCE FAVORABLE EQUATORWARD OUTFLOW. DUE TO AN IMPROVING UPPER LEVEL ENVIRONMENT THE STORM IS EXPECTED TO INTENSIFY AT A CLIMATOLOGICAL RATE THROUGH TAU 36. AFTER TAU 36, THE SYSTEM WILL INTENSIFY AT A SLIGHTLY GREATER THAN CLIMATOLOGICAL RATE AS IT MOVES INTO A LOW VERTICAL WIND SHEAR ENVIRONMENT AND THE APPROACHING MIDLATITUDE TROUGH INDUCES GREATER POLEWARD OUTFLOW. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 061200Z IS 20 FEET. NEXT WARNINGS AT 070300Z AND 071500Z.// ========================================================================= WTXS31 PGTW 20070307 03:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/MSG/NAVPACMETOCCEN/PEARL HARBOR HI/060152MAR2007// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 008 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 070000Z --- NEAR 15.2S 119.2E MOVEMENT PAST SIX HOURS - 250 DEGREES AT 08 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT REPEAT POSIT: 15.2S 119.2E --- FORECASTS: 12 HRS, VALID AT: 071200Z --- 15.7S 117.7E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 245 DEG/ 08 KTS --- 24 HRS, VALID AT: 080000Z --- 16.4S 116.1E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 100 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 100 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 240 DEG/ 08 KTS --- 36 HRS, VALID AT: 081200Z --- 17.3S 114.6E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 230 DEG/ 08 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 090000Z --- 18.3S 113.3E MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 135 NM NORTHEAST QUADRANT 135 NM SOUTHEAST QUADRANT 140 NM SOUTHWEST QUADRANT 135 NM NORTHWEST QUADRANT --- REMARKS: 070300Z POSITION NEAR 15.3S 118.8E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 305 NM NORTH OF PORT HEDLAND, AUSTRALIA, HAS TRACKED WEST-SOUTHWESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. TC 17S IS TRACKING GENERALLY WESTWARD ALONG A WESTWARD EXTENSION OF A SUBTROPICAL STEERING RIDGE ANCHORED OVER SOUTHWESTERN AUSTRALIA. THE CENTER OF THIS RIDGE IS EXPECTED TO MIGRATE EASTWARD DURING THE FORECAST PERIOD, ALLOWING AN APPROACHING MIDLATITUDE TROUGH SOUTHWEST OF THE STORM TO WEAKEN THE STEERING RIDGE EXTENSION CURRENTLY INFLUENCING TC 17S. THE STORM WILL GRADUALLY TURN SOUTHWESTWARD IN RESPONSE TO THIS RIDGE WEAKENING. TC 17S HAS INTENSIFIED AT A CLIMATOLOGI- CAL RATE OVER THE PAST 12 HOURS. THE SYSTEM IS FORECAST TO CONT- INUE INTENSIFYING AS IT MOVES INTO AN AREA OF MORE FAVORABLE UPPER LEVEL DIFFLUENCE AND DECREASING VERTICAL WIND SHEAR. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 070000Z IS 23 FEET. NEXT WARNINGS AT 071500Z AND 080300Z. REFER TO TROPICAL STORM 18S (JACOB) WARNINGS (WTXS32 PGTW) FOR SIX-HOURLY UPDATES.// ========================================================================= WTXS31 PGTW 20070307 15:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/MSG/NAVPACMETOCCEN/PEARL HARBOR HI/070152MAR2007// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 009 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 071200Z --- NEAR 15.7S 118.9E MOVEMENT PAST SIX HOURS - 215 DEGREES AT 04 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT REPEAT POSIT: 15.7S 118.9E --- FORECASTS: 12 HRS, VALID AT: 080000Z --- 16.7S 117.5E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 045 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 095 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 095 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 230 DEG/ 09 KTS --- 24 HRS, VALID AT: 081200Z --- 17.9S 116.0E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 110 NM SOUTHWEST QUADRANT 110 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 230 DEG/ 09 KTS --- 36 HRS, VALID AT: 090000Z --- 19.0S 114.6E MAX SUSTAINED WINDS - 105 KT, GUSTS 130 KT RADIUS OF 064 KT WINDS - 030 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT 030 NM SOUTHWEST QUADRANT 030 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 120 NM SOUTHWEST QUADRANT 115 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 230 DEG/ 06 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 091200Z --- 19.7S 113.7E MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 130 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT VECTOR TO 72 HR POSIT: 225 DEG/ 04 KTS --- 72 HRS, VALID AT: 101200Z --- 21.0S 112.4E MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 065 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT OVER WATER 130 NM SOUTHWEST QUADRANT 125 NM NORTHWEST QUADRANT --- REMARKS: 071500Z POSITION NEAR 16.0S 118.5E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 275 NM NORTH OF PORT HEDLAND, AUSTRALIA, HAS TRACKED SOUTHWESTWARD AT 04 KNOTS OVER THE PAST SIX HOURS. TC 17S HAS SLOWED AND TRACKED IN A MORE SOUTHWARD DIRECTION DUE TO A SLIGHT FLATTENING OF THE SUBTROPICAL RIDGE ANCHORED OVER SOUTHWESTERN AUSTRALIA. AS THE RIDGE CONTINUES TO RE-ORIENT ITSELF, THE SYSTEM WILL RESUME A A SOUTHWESTWARD TRACK AND ITS FORWARD SPEED WILL INCREASE THROUGH TAU 36. AFTER THIS TIME, TC 17S WILL BEGIN TO SLOW AND TURN INCREASINGLY SOUTH-SOUTHWESTWARD TOWARD A WEAKNESS IN THE SUBTROPICAL RIDGE CREATED BY A MIDLATITUDE TROUGH THAT IS CUR- RENTLY TO THE SOUTHWEST OF THE STORM. TC 17S HAS INTENSIFIED AT A CLIMATOLOGICAL RATE OVER THE PAST 12 HOURS. THE SYSTEM IS FORECAST TO CONTINUE INTENSIFYING AT A CLIMATOLOGICAL RATE THROUGH TAU 48 AS VERTICAL WIND SHEAR REMAINS LOW AND POLEWARD OUTFLOW INCREASES. THE INTENSITY WILL REMAIN CONSTANT FOR THE REMAINDER OF THE FORECAST PERIOD AS COOLER SEA SURFACE TEMP- ERATURES OFFSET THE FAVORABLE UPPER LEVEL CONDITIONS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 071200Z IS 25 FEET. NEXT WARNINGS AT 072100Z AND 080300Z. REFER TO TROPICAL CYCLONE 18S (JACOB) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.// ========================================================================= WTXS31 PGTW 20070307 21:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/MSG/NAVPACMETOCCEN/PEARL HARBOR HI/071952MAR2007// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 010 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 071800Z --- NEAR 16.8S 119.1E MOVEMENT PAST SIX HOURS - 180 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT REPEAT POSIT: 16.8S 119.1E --- FORECASTS: 12 HRS, VALID AT: 080600Z --- 18.5S 118.4E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 025 NM NORTHEAST QUADRANT 025 NM SOUTHEAST QUADRANT 025 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 105 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 215 DEG/ 10 KTS --- 24 HRS, VALID AT: 081800Z --- 20.1S 117.1E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT OVER WATER 055 NM SOUTHWEST QUADRANT OVER WATER 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 125 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT OVER WATER 105 NM SOUTHWEST QUADRANT OVER WATER 125 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 210 DEG/ 08 KTS --- 36 HRS, VALID AT: 090600Z --- 21.5S 116.2E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 48 HR POSIT: 200 DEG/ 08 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 091800Z --- 23.0S 115.6E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 72 HR POSIT: 185 DEG/ 06 KTS --- 72 HRS, VALID AT: 101800Z --- 25.2S 115.3E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 072100Z POSITION NEAR 17.2S 118.9E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 210 NM NORTH OF PORT HEDLAND, AUSTRALIA, HAS TRACKED SOUTHWARD AT 10 KNOTS OVER THE PAST SIX HOURS. TC 17S HAS ACCELERATED AND TURNED SOUTHWARD DUE TO A WEAKENING OF THE SUBTROPICAL STEERING RIDGE ANCHORED OVER SOUTHWESTERN AUSTRALIA BY AN APPROACHING MIDLATITUDE TROUGH. THE STORM IS EXPECTED TO MAINTAIN A SOUTH TO SOUTHWESTWARD TRACK AROUND THE WESTERN PERIPHERY OF THE STEERING RIDGE THROUGH THE FORECAST PERIOD. AN UPPER LEVEL CYCLONE TO THE WEST IS EXPECTED TO IMPROVE OUTFLOW AND ALLOW FOR INTENSIFICATION TO CONTINUE AT A CLIMATOLOGI- CAL RATE THROUGH TAU 24. AFTER TAU 24, THE SYSTEM IS EXPECTED TO TRACK OVER LAND AND DISSIPATE. THE FORECAST TRACK IS BASED UPON A FAIR CONSENSUS OF THE AVAILABLE DYNAMIC AIDS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 071800Z IS 25 FEET. NEXT WARNINGS AT 080900Z, 081500Z AND 082100Z. REFER TO TROPICAL CYCLONE 18S (JACOB) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.// ========================================================================= WTXS31 PGTW 20070308 03:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/MSG/NAVPACMETOCCEN/PEARL HARBOR HI/071952MAR2007// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 011 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 080000Z --- NEAR 17.8S 119.2E MOVEMENT PAST SIX HOURS - 175 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 055 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 100 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT REPEAT POSIT: 17.8S 119.2E --- FORECASTS: 12 HRS, VALID AT: 081200Z --- 19.7S 118.7E MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT OVER WATER 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 060 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT OVER WATER 055 NM SOUTHWEST QUADRANT OVER WATER 060 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 115 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT OVER WATER 105 NM SOUTHWEST QUADRANT OVER WATER 115 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 205 DEG/ 08 KTS --- 24 HRS, VALID AT: 090000Z --- 21.2S 117.9E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 36 HR POSIT: 195 DEG/ 06 KTS --- 36 HRS, VALID AT: 091200Z --- 22.4S 117.5E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 48 HR POSIT: 190 DEG/ 06 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 100000Z --- 23.6S 117.3E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 080300Z POSITION NEAR 18.3S 119.1E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 150 NM NORTH-NORTHEAST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED SOUTHWARD AT 10 KNOTS OVER THE PAST SIX HOURS. TC 17S CONTINUES TO TRACK SOUTHWARD ALONG THE WESTERN PERIPHERY OF A SUBTROPICAL RIDGE ANCHORED OVER SOUTH CENTRAL AUSTRALIA AND IS EXPECTED TO MAIN- TAIN A SOUTH TO SOUTHWESTWARD TRACK THROUGH THE FORECAST PERIOD. AN UPPER LEVEL CYCLONE TO THE WEST IS FORECAST TO IMPROVE OUTFLOW AND ALLOW INTENSIFICATION TO CONTINUE AT A CLIMATOLOGICAL RATE THROUGH TAU 12. AFTER TAU 12, THE SYSTEM IS EXPECTED TO TRACK OVER LAND AND DISSIPATE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 080000Z IS 28 FEET. NEXT WARNINGS AT 081500Z AND 090300Z. REFER TO TROPICAL CYCLONE 18S (JACOB) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.// ========================================================================= WTXS31 PGTW 20070308 09:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/MSG/NAVPACMETOCCEN/PEARL HARBOR HI/080752MAR2007// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 012 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 080600Z --- NEAR 18.7S 119.0E MOVEMENT PAST SIX HOURS - 190 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 085 KT, GUSTS 105 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 115 NM SOUTHWEST QUADRANT 105 NM NORTHWEST QUADRANT REPEAT POSIT: 18.7S 119.0E --- FORECASTS: 12 HRS, VALID AT: 081800Z --- 20.3S 118.7E MAX SUSTAINED WINDS - 090 KT, GUSTS 110 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT OVER WATER 035 NM SOUTHWEST QUADRANT OVER WATER 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT OVER WATER 060 NM SOUTHWEST QUADRANT OVER WATER 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 105 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT OVER WATER 115 NM SOUTHWEST QUADRANT OVER WATER 105 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 185 DEG/ 10 KTS --- 24 HRS, VALID AT: 090600Z --- 22.2S 118.5E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 36 HR POSIT: 165 DEG/ 10 KTS --- 36 HRS, VALID AT: 091800Z --- 24.1S 119.0E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 080900Z POSITION NEAR 19.1S 118.9E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 100 NM NORTH-NORTHEAST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED SOUTHWARD AT 09 KNOTS OVER THE PAST SIX HOURS. THE SYSTEM HAS INTENSIFIED SLIGHTLY OVER THE PAST 06 HOURS, AND A CLOUD-FILLED EYE IS NOW EVIDENT IN ANIMATED MULTISPECTRAL IMAGERY. ANIMATED WATER VAPOR IMAGERY INDICATES THE SUBTROPICAL RIDGE OVER SOUTHWESTERN AUST- RALIA IS BUILDING NORTHWARD, AND BEGINNING TO MERGE WITH THE NEAR EQUATORIAL RIDGE TO THE NORTHEAST OF THE SYSTEM. THE MERGER BETWEEN THESE TWO RIDGES IS INDUCING THE SOUTHWARD STEERING PATTERN FOR 17S. SLIGHT INTENSIFICATION WILL OCCUR PRIOR TO LAND- FALL AT TAU 12. THE SYSTEM WILL BEGIN TO BE ABSORBED BY THE AP- PROACHING MIDLATITUDE SYSTEM AROUND TAU 36, AT WHICH TIME IT WILL HAVE DISSIPATED AS A TROPICAL CYCLONE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 080600Z IS 28 FEET. NEXT WARNINGS AT 082100Z, 090300Z, AND 090900Z. REFER TO TROPICAL CYCLONE 18S (JACOB) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.// ========================================================================= WTXS31 PGTW 20070308 15:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/MSG/NAVPACMETOCCEN/PEARL HARBOR HI/080752MAR2007// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 013 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 081200Z --- NEAR 19.9S 119.0E MOVEMENT PAST SIX HOURS - 180 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 030 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 110 KT, GUSTS 135 KT RADIUS OF 064 KT WINDS - 035 NM NORTHEAST QUADRANT 030 NM SOUTHEAST QUADRANT OVER WATER 030 NM SOUTHWEST QUADRANT OVER WATER 035 NM NORTHWEST QUADRANT RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT OVER WATER 045 NM SOUTHWEST QUADRANT OVER WATER 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 110 NM NORTHEAST QUADRANT 110 NM SOUTHEAST QUADRANT OVER WATER 110 NM SOUTHWEST QUADRANT OVER WATER 110 NM NORTHWEST QUADRANT REPEAT POSIT: 19.9S 119.0E --- FORECASTS: 12 HRS, VALID AT: 090000Z --- 22.0S 118.9E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 170 DEG/ 11 KTS --- 24 HRS, VALID AT: 091200Z --- 24.1S 119.4E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 081500Z POSITION NEAR 20.4S 119.0E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 35 NM NORTHEAST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED SOUTHWARD AT 12 KNOTS OVER THE PAST SIX HOURS. RECENT ANIMATED INFRARED IMAGERY SHOWS THE RAPID DEVELOPMENT OF THE WELL-DEFINED EYE OVER THE PAST 06 HOURS. ADDITIONALLY, SURFACE OBSERVATIONS FROM BEDOUT ISLAND INDICATE 105 KT SUSTAINED WINDS ON THE SOUTHERN SIDE OF THE EYEWALL, WHICH PASSED DIRECTLY OVER THE ISLAND. THE STORM HAS ALSO SPED UP OVER THE PAST 06 HOURS AND IS VERY CLOSE TO LANDFALL. TC 17S WILL DISSIPATE AS A TROPICAL CYCLONE BY TAU 24, DUE TO INTERACTION WITH LAND. AFTER THIS TIME, IT WILL BEGIN TO BE ABSORBED AND PULLED SOUTHEASTWARD BY THE AP- PROACHING MIDLATITUDE SYSTEM. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 081200Z IS 30 FEET. NEXT WARNINGS AT 082100Z, 090300Z AND 090900Z. REFER TO TROPICAL CYCLONE 18S (JACOB) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.// ========================================================================= WTXS31 PGTW 20070308 21:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/MSG/NAVPACMETOCCEN/PEARL HARBOR HI/080752MAR2007// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 014 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 081800Z --- NEAR 20.8S 118.7E MOVEMENT PAST SIX HOURS - 195 DEGREES AT 09 KTS POSITION ACCURATE TO WITHIN 025 NM POSITION BASED ON EYE FIXED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 100 KT, GUSTS 125 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND REPEAT POSIT: 20.8S 118.7E --- FORECASTS: 12 HRS, VALID AT: 090600Z --- 22.8S 118.7E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND VECTOR TO 24 HR POSIT: 165 DEG/ 10 KTS --- 24 HRS, VALID AT: 091800Z --- 24.7S 119.2E MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 082100Z POSITION NEAR 21.3S 118.7E. TROPICAL CYCLONE (TC) 17S (GEORGE), LOCATED APPROXIMATELY 30 NM SOUTH-SOUTHEAST OF PORT HEDLAND, AUSTRALIA, HAS TRACKED SOUTH- SOUTHWESTWARD AT 09 KNOTS OVER THE PAST SIX HOURS. RECENT ANIMATED INFRARED SATELLITE IMAGERY INDICATES THE EYE MADE LAND FALL AT APPROXIMATELY 08/1230Z. ANIMATED RADAR IMAGERY FROM DAMPIER, AUSTRALIA INDICATES THE SYSTEM CONTINUES TO TRACK INLAND. TC 17S WILL CONTINUE TO TRACK SOUTHWARD UNDER THE INFLUENCE IS AN EX- TENSION OF THE SUBTROPICAL RIDGE OVER CENTRAL AUSTRALIA. THE SYSTEM WILL RAPIDLY WEAKEN DUE TO INTERACTION WITH LAND AND DISSIPATE AS A TROPICAL CYCLONE BY TAU 24. NEXT WARNINGS AT 090300Z, 090900Z AND 091500Z. REFER TO TROPICAL CYCLONE 18S (JACOB) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.// ========================================================================= WTXS31 PGTW 20070309 03:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/MSG/NAVPACMETOCCEN/PEARL HARBOR HI/081952MAR2007// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. TROPICAL CYCLONE 17S (GEORGE) WARNING NR 015 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 090000Z --- NEAR 21.7S 118.6E MOVEMENT PAST SIX HOURS - 180 DEGREES AT 06 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND REPEAT POSIT: 21.7S 118.6E --- FORECASTS: 12 HRS, VALID AT: 091200Z --- 23.4S 119.1E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER LAND --- REMARKS: 090300Z POSITION NEAR 22.1S 118.7E. TROPICAL CYCLONE (TC) 17S (GEORGE) LOCATED APPROXIMATELY 85 NM SOUTH OF PORT HEDLAND, AUSTRALIA HAS TRACKED SOUTHWARD AT 06 KNOTS OVER THE PAST SIX HOURS. THE SYSTEM CONTINUES TO WEAKEN DUE TO INTERACTION WITH LAND AND IS EXPECTED TO DISSIPATE BY TAU 12. THIS IS THE FINAL WARNING ON THIS SYSTEM BY THE JOINT TYPHOON WARNING CENTER (NAVPACMETOCCEN). THE SYSTEM WILL BE CLOSELY MONITORED FOR SIGNS OF REGENERATION. REFER TO TROPICAL CYCLONE 18S (JACOB) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.//
Document: george.htm
Updated: 9th March 2007 |
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