Tropical
Cyclones
[Index] |
Tropical Cyclone LEE-ARIEL [Australian Region][South Indian Ocean][South Pacific Ocean][Southern Hemisphere][Summaries and Track Data] |
WTXS21 PGTW 20071114 16:30z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 100 NM EITHER SIDE OF A LINE FROM 8.3S 91.9E TO 10.5S 88.6E WITH- IN THE NEXT 12 TO 24 HOURS. AVAILABLE DATA DOES NOT JUSTIFY IS- SUANCE OF NUMBERED TROPICAL CYCLONE WARNINGS AT THIS TIME. WINDS IN THE AREA ARE ESTIMATED TO BE 28 TO 32 KNOTS. METSAT IMAGERY AT 141430Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 8.7S 91.6E. THE SYSTEM IS MOVING SOUTH-SOUTHEASTWARD AT 06 KNOTS. 2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 6.5S 91.2E IS NOW LOCATED NEAR 8.7S 91.6E, APPROXIMATELY 375 NM WEST-NORTHWEST OF THE COCOS ISLANDS. RECENT ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS CONVECTION CONSOLIDATING ALONG THE SOUTHWESTERN PERI- PHERY OF A WELL-DEFINED LOW LEVEL CIRCULATION CENTER ALSO EVIDENT IN A 141109Z SSMI PASS. RECENT DVORAK T-NUMBERS FROM VARIOUS REPORT- ING AGENCIES AND SATELLITE WIND-DERIVED INTENSITY ESTIMATES SUGGEST THAT MAXIMUM SUSTAINED WIND SPEEDS HAVE INCREASED OVER THE PAST 06 TO 12 HOURS. THE DISTURBANCE LIES NEAR THE WESTERN PERIPHERY OF AN EXTENSIVE UPPER LEVEL ANTICYCLONE, WITH MODERATE VERTICAL WIND SHEAR AND FAVORABLE DIFFLUENCE ALOFT. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 28 TO 32 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1000 MB. DUE TO AN IMPROVING LOW LEVEL SIGNATURE, THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO GOOD. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 151630Z. ========================================================================= WTXS31 PGTW 20071114 21:00z COR MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// REF/A/NAVPACMETOCCEN PEARL HARBOR HI/141621ZNOV07// AMPN/TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. TROPICAL CYCLONE 03S (LEE) WARNING NR 001 CORRECTED 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 141800Z --- NEAR 9.3S 91.2E MOVEMENT PAST SIX HOURS - 215 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 9.3S 91.2E --- FORECASTS: 12 HRS, VALID AT: 150600Z --- 9.9S 90.0E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 250 DEG/ 06 KTS --- 24 HRS, VALID AT: 151800Z --- 10.3S 88.8E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 265 DEG/ 04 KTS --- 36 HRS, VALID AT: 160600Z --- 10.4S 87.9E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY 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 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 255 DEG/ 06 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 161800Z --- 10.7S 86.8E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY 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 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT --- REMARKS: 142100Z POSITION NEAR 9.4S 90.9E. TROPICAL CYCLONE (TC) 03S (LEE), LOCATED APPROXIMATELY 375 NM WEST- NORTHWEST OF COCOS ISLAND, HAS TRACKED SOUTHWESTWARD AT 07 KNOTS OVER THE PAST 06 HOURS. TC 03S HAS UNDERGONE SIGNIFICANT DEVELOPMENT OVER THE PAST 12 HOURS, WITH SATELLITE DVORAK INTENSITY ESTIMATES REACHING 2.5/2.5 (PGTW) AND 3.0/3.0 (KNES AND APRF). THE LOW LEVEL CIRCULATION CENTER (LLCC) HAS CONSOLIDATED AS SEEN IN A 141622Z AMSU MICROWAVE IMAGE. THE SYSTEM IS CURRENTLY TRACKING SLOWLY SOUTHWEST- WARD ON THE NORTHWESTERN PERIPHERY OF THE SUBTROPICAL RIDGE. TC 03S IS EXPECTED TO CONTINUE TO TRACK SLOWLY TO THE SOUTHWEST THROUGHOUT THE FORECAST PERIOD. SLOW INTENSIFICATION IS EXPECTED AS THE SYSTEM IS EXPERIENCING MODERATE VERTICAL WIND SHEAR AND LOW OCEAN HEAT CONTENT. WIND SHEAR IS EXPECTED TO WEAKEN NEAR THE END OF THE FORE- CAST PERIOD, ALLOWING INTENSIFICATION TO OCCUR AFTER TAU 48. THIS WARNING SUPERSEDES AND CANCELS REF A, NAVPACMETOCCEN 141621ZNOV07 TROPICAL CYCLONE FORMATION ALERT (WTXS21 PGTW 141630) MAXIMUM SIGNIFICANT WAVE HEIGHT AT 141800Z IS 13 FEET. NEXT WARNINGS AT 150900Z AND 152100Z. JUSTIFICATION FOR CORRECTION: ADDED MISSING TEXT.// ========================================================================= WTXS31 PGTW 20071115 09:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 03S (LEE) WARNING NR 002 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 150600Z --- NEAR 10.8S 90.4E MOVEMENT PAST SIX HOURS - 205 DEGREES AT 08 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 WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 020 NM NORTHEAST QUADRANT 020 NM SOUTHEAST QUADRANT 020 NM SOUTHWEST QUADRANT 020 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT REPEAT POSIT: 10.8S 90.4E --- FORECASTS: 12 HRS, VALID AT: 151800Z --- 11.5S 89.2E MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT WIND RADII VALID OVER OPEN WATER ONLY 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 - 055 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 250 DEG/ 06 KTS --- 24 HRS, VALID AT: 160600Z --- 11.9S 88.1E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY 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 065 NM SOUTHEAST QUADRANT 065 NM SOUTHWEST QUADRANT 065 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 255 DEG/ 05 KTS --- 36 HRS, VALID AT: 161800Z --- 12.2S 87.1E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY 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 - 035 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 035 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 48 HR POSIT: 250 DEG/ 05 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 170600Z --- 12.5S 86.2E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY 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 - 040 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 040 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 075 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT --- REMARKS: 150900Z POSITION NEAR 11.0S 90.1E. TROPICAL CYCLONE (TC) 03S (LEE), LOCATED APPROXIMATELY 395 NM WEST OF COCOS ISLAND, HAS TRACKED SOUTH-SOUTHWESTWARD AT 08 KNOTS OVER THE PAST 06 HOURS. TC 03S HAS CONTINUED TO DEVELOPMENT AND INTENSIFY OVER THE PAST 12 HOURS, WITH SATELLITE DVORAK INTENSITY ESTIMATES REACHING 3.5/3.5 (PGTW, KNES, AND APRF). THE LOW LEVEL CIRCULATION CENTER (LLCC) HAS CONSOLIDATED AND IS BEGINNING TO SHOW A MICROWAVE EYE FEATURE AS SEEN IN A PARTIAL 150407Z TRMM IMAGE. THE SYSTEM IS CURRENTLY TRACKING SOUTH-SOUTHWESTWARD ON THE NORTHWESTERN PERIPHERY OF THE SUBTROPICAL RIDGE. TC 03S IS FORECAST TO CONTINUE TO TRACK TO THE SOUTH-SOUTHWEST AND THEN SOUTHWESTWARD AFTER TAU 12. GRADUAL IN- TENSIFICATION IS EXPECTED AS THE SYSTEM WILL CONTINUE TO EXPERIENCE LOW VERTICAL WIND SHEAR, LOW OCEAN HEAT CONTENT THROUGH THE FORECAST PERIOD. THE OBJECTIVE FORECAST AIDS ARE IN FAIR AGREEMENT WITH THIS SCENARIO. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 150600Z IS 16 FEET. NEXT WARNINGS AT 152100Z AND 160900Z.// ========================================================================= WTXS31 PGTW 20071115 21:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 03S (LEE) WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 151800Z --- NEAR 12.3S 89.2E MOVEMENT PAST SIX HOURS - 205 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 035 NM NORTHEAST QUADRANT 040 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 065 NM NORTHEAST QUADRANT 105 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT REPEAT POSIT: 12.3S 89.2E --- FORECASTS: 12 HRS, VALID AT: 160600Z --- 13.1S 88.3E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY 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 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 080 NM NORTHEAST QUADRANT 115 NM SOUTHEAST QUADRANT 090 NM SOUTHWEST QUADRANT 075 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 230 DEG/ 05 KTS --- 24 HRS, VALID AT: 161800Z --- 13.8S 87.5E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY 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 055 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 120 NM SOUTHEAST QUADRANT 095 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 265 DEG/ 05 KTS --- 36 HRS, VALID AT: 170600Z --- 13.9S 86.5E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY 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 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 265 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 171800Z --- 14.0S 84.6E MAX SUSTAINED WINDS - 075 KT, GUSTS 090 KT WIND RADII VALID OVER OPEN WATER ONLY 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 060 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 090 NM NORTHEAST QUADRANT 125 NM SOUTHEAST QUADRANT 100 NM SOUTHWEST QUADRANT 085 NM NORTHWEST QUADRANT --- REMARKS: 152100Z POSITION NEAR 12.5S 89.0E. TROPICAL CYCLONE (TC) 03S (LEE), LOCATED APPROXIMATELY 450 NM WEST OF COCOS ISLAND, HAS TRACKED SOUTH-SOUTHWESTWARD AT 07 KNOTS OVER THE PAST 06 HOURS. TC 03S HAS CONTINUED DEVELOPMENT AND IN- TENSIFICATION OVER THE PAST 12 HOURS, WITH SATELLITE DVORAK INTENSITY ESTIMATES REACHING 4.0/4.0 (PGTW, KNES AND APRF). THE LOW LEVEL CIRCULATION CENTER (LLCC) APPEARS TO BE DEVELOPING AN EYE-LIKE FEATURE IN MICROWAVE IMAGERY, AS SEEN IN A 151558Z AMSU IMAGE. THE SYSTEM CONTINUES TO TRACK SOUTH-SOUTHWESTWARD ON THE NORTHWESTERN PERIPHERY OF THE SUBTROPICAL RIDGE. TC 03S IS EXPECTED TO CONTINUE TRACKING SOUTH-SOUTHWESTWARD THROUGH TAU 24 BEFORE TURNING MORE WEST- WARD THROUGH TAU 48. GRADUAL INTENSIFICATION IS EXPECTED AS THE SYS- TEM CONTINUES TO EXPERIENCE LOW VERTICAL WIND SHEAR, AND LOW OCEAN HEAT CONTENT THROUGH THE FORECAST PERIOD. THE OBJECTIVE FORECAST AIDS ARE IN FAIR AGREEMENT WITH THIS SCENARIO, ALTHOUGH THIS FORECAST FAVORS THE WEBER BAROTROPIC MODEL IN THE NEAR TERM TRACK. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 151800Z IS 22 FEET. NEXT WARNINGS AT 160900Z AND 162100Z.// ========================================================================= WTXS31 PGTW 20071116 09:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 03S (LEE) WARNING NR 004 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 160600Z --- NEAR 11.9S 88.3E MOVEMENT PAST SIX HOURS - 270 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 WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT REPEAT POSIT: 11.9S 88.3E --- FORECASTS: 12 HRS, VALID AT: 161800Z --- 12.1S 86.9E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY 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 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 255 DEG/ 07 KTS --- 24 HRS, VALID AT: 170600Z --- 12.4S 85.6E MAX SUSTAINED WINDS - 070 KT, GUSTS 085 KT WIND RADII VALID OVER OPEN WATER ONLY 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 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 250 DEG/ 07 KTS --- 36 HRS, VALID AT: 171800Z --- 12.8S 84.3E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 245 DEG/ 06 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 180600Z --- 13.3S 83.1E MAX SUSTAINED WINDS - 065 KT, GUSTS 080 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT --- REMARKS: 160900Z POSITION NEAR 12.0S 87.9E. TROPICAL CYCLONE (TC) 03S (LEE-ARIEL), LOCATED APPROXIMATELY 975 NM EAST-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED WESTWARD AT 04 KNOTS OVER THE PAST 06 HOURS. TC 03S HAS MAINTAINED ITS INTENSITY OVER THE PAST 12 HOURS DUE TO GOOD POLEWARD OUTFLOW, BUT MARGINAL OCEAN HEAT CONTENT AND LOW TO MODERATE VERTICAL WIND SHEAR. SATELLITE DVORAK INTENSITY ESTIMATES RANGED FROM 3.5/3.5 (FMEE) TO 4.0/4.0 (PGTW AND KNES). THE SYSTEM IS TRACK- ING IN A WEAKER STEERING ENVIRONMENT BETWEEN THE NEAR-EQUATORIAL RIDGING TO ITS EAST-NORTHEAST AND A STRENGTHENING SUBTROPICAL RIDGE (STR) TO THE SOUTH-SOUTHWEST OF THE STORM. TC 03S WILL BEGIN TO TRACK MORE RAPIDLY TO THE WEST-SOUTHWEST, AS THE STR BECOMES THE MAIN STEERING INFLUENCE PRIOR TO TAU 12. THE STORM WILL INTENSIFY SLIGHTLY THROUGH TAU 24 DUE TO THE FAVORABLE POLE- WARD OUTFLOW. AFTER THIS TIME, SOME WEAKENING IS EXPECTED DUE TO A DECREASE IN POLEWARD OUTFLOW AND CONTINUED LOWER OCEAN HEAT CONTENT. THE OBJECTIVE FORECAST AIDS ARE IN FAIR AGREEMENT WITH THIS SCENARIO. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 160600Z IS 22 FEET. NEXT WARNINGS AT 162100Z AND 170900Z.// ========================================================================= WTXS31 PGTW 20071116 21:00z SUBJ: TROPICAL CYCLONE 03S (LEE) WARNING NR 005 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 161800Z --- NEAR 11.9S 87.5E 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 - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 050 NM NORTHEAST QUADRANT 055 NM SOUTHEAST QUADRANT 055 NM SOUTHWEST QUADRANT 055 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 070 NM NORTHEAST QUADRANT 075 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT REPEAT POSIT: 11.9S 87.5E --- FORECASTS: 12 HRS, VALID AT: 170600Z --- 12.3S 86.6E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 245 DEG/ 05 KTS --- 24 HRS, VALID AT: 171800Z --- 12.7S 85.7E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 085 NM NORTHEAST QUADRANT 090 NM SOUTHEAST QUADRANT 085 NM SOUTHWEST QUADRANT 080 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 255 DEG/ 05 KTS --- 36 HRS, VALID AT: 180600Z --- 13.0S 84.7E MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 255 DEG/ 07 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 181800Z --- 13.3S 83.4E MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 050 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 075 NM NORTHEAST QUADRANT 085 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 070 NM NORTHWEST QUADRANT --- REMARKS: 162100Z POSITION NEAR 12.0S 87.3E. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 161800Z IS 19 FEET. NEXT WARNINGS AT 170900Z AND 172100Z. ========================================================================= WTXS31 PGTW 20071117 09:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 03S (LEE) WARNING NR 006 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 170600Z --- NEAR 11.8S 87.4E MOVEMENT PAST SIX HOURS - 245 DEGREES AT 02 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 WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT REPEAT POSIT: 11.8S 87.4E --- FORECASTS: 12 HRS, VALID AT: 171800Z --- 12.1S 87.0E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 230 DEG/ 03 KTS --- 24 HRS, VALID AT: 180600Z --- 12.5S 86.5E MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 240 DEG/ 04 KTS --- 36 HRS, VALID AT: 181800Z --- 12.9S 85.8E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 250 DEG/ 04 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 190600Z --- 13.2S 85.0E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT --- REMARKS: 170900Z POSITION NEAR 11.9S 87.3E. TROPICAL CYCLONE (TC) 03S (LEE-ARIEL), LOCATED APPROXIMATELY 920 NM EAST-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED WEST- SOUTHWESTWARD AT 02 KNOTS OVER THE PAST 06 HOURS. ANIMATED MULTISPECTRAL IMAGERY SHOWS A RECENT FLARE OF DEEP CONVECTION, BUT THE STORM CONTINUES TO APPEAR TO BE HINDERED BY AN UPPER LEVEL TROUGH WEST OF THE SYSTEM WHICH IS PRODUCING INCREASED NORTHWESTERLY VERTICAL WIND SHEAR AND SUPPRESSED OUTFLOW OVER THE NORTHERN PERIPHERY OF THE STORM. THE CURRENT INTENSITY IS BASED ON AN AVERAGE OF DVORAK INTENSITY ESTIMATES RANGING FROM 30 TO 55 KNOTS. THE SYSTEM IS TRACKING SLOWLY WEST TO WEST- SOUTHWESTWARD UNDER THE STEERING INFLUENCE OF A DEEP SUBTROPICAL RIDGE TO THE SOUTH OF THE SYSTEM. TC 03S IS FORECAST TO MAINTAIN INTENSITY THROUGH TAU 24 AND THEN WEAKEN SLIGHTLY DUE TO THE NEGATIVE EFFECTS FROM THE UPPER LEVEL ENVIRONMENT AND MARGINAL OCEAN HEAT CONTENT. THE DYNAMIC AIDS ARE IN POOR AGREEMENT. THE CURRENT FORECAST REMAINS SLOWER AND ON THE EQUATORWARD SIDE OF THE CONSENSUS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 170600Z IS 16 FEET. NEXT WARNINGS AT 172100Z AND 180900Z.// ========================================================================= WTXS31 PGTW 20071117 21:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 03S (LEE) WARNING NR 007 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 171800Z --- NEAR 11.9S 87.0E MOVEMENT PAST SIX HOURS - 270 DEGREES AT 02 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 11.9S 87.0E --- FORECASTS: 12 HRS, VALID AT: 180600Z --- 12.1S 86.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 230 DEG/ 02 KTS --- 24 HRS, VALID AT: 181800Z --- 12.4S 86.4E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 36 HR POSIT: 235 DEG/ 04 KTS --- 36 HRS, VALID AT: 190600Z --- 12.8S 85.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 48 HR POSIT: 250 DEG/ 04 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 191800Z --- 13.1S 85.0E MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT WIND RADII VALID OVER OPEN WATER ONLY RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT --- REMARKS: 172100Z POSITION NEAR 12.0S 87.0E. TROPICAL CYCLONE (TC) 03S (LEE-ARIEL), LOCATED APPROXIMATELY 900 NM EAST-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED WESTWARD AT 02 KNOTS OVER THE PAST 06 HOURS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS DECREASING DEEP CONVECTION SHEARED TO THE SOUTHEAST OF THE LOW-LEVEL CIRCULATION CENTER (LLCC). A 171706Z TRMM IMAGE INDICATES A PARTIALLY-EXPOSED LLCC LOCATED JUST NORTHWEST OF AN AREA OF DEEP CONVECTION. THE CURRENT INTENSITY IS BASED ON DVORAK CURRENT INTENSITY ESTIMATES OF 35 TO 45 KNOTS. TC 03S CONTINUES TO SLOWLY TRACK WESTWARD UNDER THE STEERING INFLUENCE OF THE LOW- TO MID-LEVEL SUBTROPICAL RIDGE POSITIONED SOUTH OF THE SYSTEM AND IS FORECAST TO CONTINUE TRACKING WESTWARD TO WEST-SOUTHWESTWARD THROUGH THE PERIOD. TC 03S IS FORECAST TO MAINTAIN INTENSITY AS A WEAK TROPICAL CYCLONE THROUGH TAU 48. THE DYNAMIC AIDS ARE IN POOR AGREEMENT SO THE FORECAST IS BASED ON MODEL ANALYSIS OF THE STEERING RIDGE AND PERSISTENCE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 171800Z IS 14 FEET. NEXT WARNINGS AT 180900Z AND 182100Z.// ========================================================================= WTXS31 PGTW 20071118 09:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 03S (LEE-ARIEL) WARNING NR 008 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 180600Z --- NEAR 12.2S 86.6E MOVEMENT PAST SIX HOURS - 225 DEGREES AT 03 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY REPEAT POSIT: 12.2S 86.6E --- FORECASTS: 12 HRS, VALID AT: 181800Z --- 12.5S 86.4E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 24 HR POSIT: 215 DEG/ 02 KTS --- 24 HRS, VALID AT: 190600Z --- 12.8S 86.2E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 36 HR POSIT: 245 DEG/ 02 KTS --- 36 HRS, VALID AT: 191800Z --- 13.0S 85.8E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY VECTOR TO 48 HR POSIT: 260 DEG/ 02 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 200600Z --- 13.1S 85.3E MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY --- REMARKS: 180900Z POSITION NEAR 12.3S 86.6E. TROPICAL CYCLONE (TC) 03S (LEE-ARIEL), LOCATED APPROXIMATELY 880 NM EAST-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTHWESTWARD AT 03 KNOTS OVER THE PAST 06 HOURS. THE SOUTHWARD COMPONENT OF STORM MOTION HAS INCREASED OVER THE PAST 06 HOURS AS A NEAR-EQUATORIAL RIDGE TO THE NORTHEAST AND SUBTROPICAL RIDGE TO THE SOUTH EXERT COMPETING STEERING INFLUENCES. THE SYSTEM IS EXPECTED TO CONTINUE GENERALLY SOUTHWARD TO SOUTHWESTWARD OVER THE NEXT 24 HOURS UNTIL THE SUBTROPICAL RIDGE ONCE AGAIN BECOMES THE DOMINANT STEERING MECHANISM AND INDUCES A TURN BACK TOWARD THE WEST. MODERATE VERTICAL WIND SHEAR AND MODEST OCEAN HEAT CONTENT ARE EXPECTED TO BALANCE FAVORABLE POLEWARD OUTFLOW, KEEPING STORM INTENSITY NEARLY STEADY THROUGH TAU 48. HOWEVER, IF TC 04S TO THE NORTHWEST INTENSIFIES SIGNIFICANTLY DURING THIS PERIOD, STRONG UPPER LEVEL OUTFLOW FROM THAT SYSTEM MAY INDUCE STRONGER VERTICAL WIND SHEAR ACROSS TC 03S THAN CURRENTLY FORECAST, RESULTING IN DISSIPATION OF TC 03S. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 180600Z IS 14 FEET. NEXT WARNINGS AT 182100Z AND 190900Z. REFER TO TROPICAL CYCLONE 04S (NONAME) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.// ========================================================================= WTXS31 PGTW 20071118 21:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 03S (LEE-ARIEL) WARNING NR 009 02 ACTIVE TROPICAL CYCLONES IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 181800Z --- NEAR 13.4S 87.8E MOVEMENT PAST SIX HOURS - 130 DEGREES AT 05 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER REPEAT POSIT: 13.4S 87.8E --- FORECASTS: 12 HRS, VALID AT: 190600Z --- 13.9S 88.1E MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT WIND RADII VALID OVER OPEN WATER ONLY DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 182100Z POSITION NEAR 13.5S 87.9E. TROPICAL CYCLONE (TC) 03S (LEE-ARIEL), LOCATED APPROXIMATELY 975 NM EAST-SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTHEASTWARD AT 05 KNOTS OVER THE PAST 06 HOURS. ANIMATED INFRARED SATELLITE IMAGERY AND THE 181611Z TRMM 85/37GHZ IMAGES INDICATE A WEAKENING, FULLY-EXPOSED LOW- LEVEL CIRCULATION CENTER (LLCC) WITH DEEP CONVECTION SHEARED ABOUT 60 NM SOUTH OF THE CENTER. ANIMATED WATER VAPOR IMAGERY AND UW-CIMSS PRODUCTS SHOW INCREASING VERTICAL WIND SHEAR WITH OUTFLOW FROM TC 04S IMPINGING ON AND HINDERING OUTFLOW OVER TC 03S. ADDITIONALLY, OCEAN HEAT CONTENT REMAINS MARGINAL. TC 03S IS FORECAST TO REMAIN WITHIN AN UNFAVORABLE ENVIRONMENT AND TO SLOWLY TRACK SOUTHEASTWARD AND DISSIPATE OVER WATER 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. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 181800Z IS 12 FEET. REFER TO TROPICAL CYCLONE 04S (NONAME) WARNINGS (WTXS32 PGTW) FOR TWELVE-HOURLY UPDATES.//
Document: lee.htm
Updated: 19th November 2007 |
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