Tropical Cyclones
[Index] | Tropical Cyclone GERARD : JTWC Advisories |
Season 2004-2005 Summaries (Operational Data): [AU] [SIO] [SPAC] [SH] | |
---> Tropical Cyclone GERARD Track Map and Data |
WTXS21 PGTW 20050203 14:30z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE FORMATION ALERT 031421ZFEB2005// REF/A/RMG/NAVPACMETOCCEN PEARL HARBOR HI/031351ZFEB2005// AMPN/REF IS A TROPICAL CYCLONE FORMATION ALERT (WTPS21 /PGTW 031400).// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 140 NM EITHER SIDE OF A LINE FROM 21.7S0 58.8E1 TO 26.3S1 56.3E4 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 30 TO 35 KNOTS. METSAT IMAGERY AT 031130Z8 INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 22.3S7 58.4E7. THE SYSTEM IS MOVING WEST-SOUTHWESTWARD AT 13 KNOTS. 2. REMARKS: THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 20.4S6 63.1E0, IS NOW LOCATED NEAR 22.3S7 58.4E7, APPROXIMATELY 170 NM EAST-SOUTHEAST OF LA REUNION. RECENT ANIMATED MULTISPECTRAL SATELLITE IMAGERY REVEALS IMPROVED ORGANIZATION AND INCREASED DEEP CONVECTION OVER THE PAST 06 HOURS. A 030949Z5 AMSR-E PASS ALSO DEPICTS IMPROVED ORGANIZATION AND INCREASED DEEP CONVECTION WITH INDICATION OF A POSSIBLE EYE FORMATION. UPPER LEVEL ANALYSIS INDICATES AN IMMEDIATE ENVIRONMENT OF LOW VERTICAL WIND SHEAR AND FAVORABLE DIVERGENCE ALOFT. AN ENVIRONMENT OF INCREASED VERTICAL WIND SHEAR EXISTS TO THE SOUTHWEST OF THE SYSTEM. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 30 TO 35 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1002 MB. BASED ON IMPROVING ORGANIZATION, 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 041430Z2. 4. SEE REF A FOR DETAILS ON A TROPICAL CYCLONE FORMATION ALERT LOCATED NEAR 14.0S5 168.1W6.// ========================================================================= WTXS31 PGTW 20050203 21:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// REF/A/NAVPACMETOCCEN PEARL HARBOR HI/031421ZFEB2005// AMPN/REF A IS A TROPICAL CYCLONE FORMATION ALERT.// 1. TROPICAL CYCLONE 14S WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 031800Z2 --- NEAR 23.0S5 58.0E3 MOVEMENT PAST SIX HOURS - 210 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 040 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 034 KT WINDS - 035 NM NORTHEAST QUADRANT 045 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 035 NM NORTHWEST QUADRANT REPEAT POSIT: 23.0S5 58.0E3 --- FORECASTS: 12 HRS, VALID AT: 040600Z0 --- 24.2S8 57.4E6 MAX SUSTAINED WINDS - 055 KT, GUSTS 070 KT RADIUS OF 050 KT WINDS - 015 NM RADIUS OF 034 KT WINDS - 040 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 200 DEG/ 08 KTS --- 24 HRS, VALID AT: 041800Z3 --- 25.6S3 56.8E9 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 195 DEG/ 08 KTS --- 36 HRS, VALID AT: 050600Z1 --- 27.1S0 56.4E5 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 040 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 185 DEG/ 08 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 051800Z4 --- 28.7S7 56.2E3 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 050 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT --- REMARKS: 032100Z6 POSITION NEAR 23.3S8 57.9E1. TROPICAL CYCLONE (TC) 14S, LOCATED APPROXIMATELY 170 NM SOUTHEAST OF LA REUNION, HAS TRACKED SOUTH-SOUTHWESTWARD AT 07 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 031730Z4 EN- HANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 AND 45 KNOTS. RECENT MICROWAVE IMAGERY REVEALS A SMALL, COMPACT SYSTEM WITH A STRONG BANDING FEATURE TO THE SOUTH. TC 14S IS FORECAST TO TRACK SOUTH- SOUTHWESTWARD UNDER THE STEERING INFLUENCE OF A LOW TO MID LEVEL ANTICYCLONE ANCHORED TO THE SOUTHEAST OF THE SYSTEM. THE SYSTEM IS FORECAST TO INTENSIFY OVER THE NEXT 12 HOURS, BUT THEN WEAKEN FOR THE REMAINDER OF THE FORECAST PERIOD AS THE ENVIRONMENT BECOMES INCREASINGLY UNFAVORABLE. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 031800Z2 IS 19 FEET. THIS WARNING SUPERSEDES AND CANCELS REF A, NAVPACMETOCCEN 031421ZFEB2005 TROPICAL CYCLONE FORMATION ALERT (WTXS21 PGTW 031430) NEXT WARNINGS AT 040900Z3 AND 042100Z7.// ========================================================================= WTXS31 PGTW 20050204 09:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 14S (GERARD) WARNING NR 002 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 040600Z0 --- NEAR 24.7S3 57.5E7 MOVEMENT PAST SIX HOURS - 185 DEGREES AT 11 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT REPEAT POSIT: 24.7S3 57.5E7 --- FORECASTS: 12 HRS, VALID AT: 041800Z3 --- 27.4S3 57.4E6 MAX SUSTAINED WINDS - 060 KT, GUSTS 075 KT RADIUS OF 050 KT WINDS - 025 NM NORTHEAST QUADRANT 035 NM SOUTHEAST QUADRANT 035 NM SOUTHWEST QUADRANT 025 NM NORTHWEST QUADRANT RADIUS OF 034 KT WINDS - 060 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 080 NM SOUTHWEST QUADRANT 060 NM NORTHWEST QUADRANT VECTOR TO 24 HR POSIT: 175 DEG/ 17 KTS --- 24 HRS, VALID AT: 050600Z1 --- 30.8S1 57.7E9 MAX SUSTAINED WINDS - 050 KT, GUSTS 065 KT RADIUS OF 034 KT WINDS - 050 NM NORTHEAST QUADRANT 060 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 36 HR POSIT: 150 DEG/ 26 KTS --- 36 HRS, VALID AT: 051800Z4 --- 35.3S1 60.7E3 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT BECOMING EXTRATROPICAL RADIUS OF 034 KT WINDS - 045 NM NORTHEAST QUADRANT 050 NM SOUTHEAST QUADRANT 045 NM SOUTHWEST QUADRANT 050 NM NORTHWEST QUADRANT VECTOR TO 48 HR POSIT: 135 DEG/ 28 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 060600Z2 --- 39.0S2 65.9E0 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT EXTRATROPICAL --- REMARKS: 040900Z3 POSITION NEAR 25.4S1 57.5E7. TROPICAL CYCLONE (TC) 14S (GERARD), LOCATED APPROXIMATELY 220 NM SOUTH-SOUTHEAST OF LA REUNION, HAS TRACKED SOUTH-SOUTHWESTWARD AT 11 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 040530Z2 MULTISPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 55 AND 65 KNOTS. TC 14S IS FORECAST TO TRACK POLEWARD UNDER THE STEERING INFLUENCE OF A MID LEVEL STEERING RIDGE LOCATED TO THE SOUTHEAST. THE CYCLONE IS FORECAST TO MAINTAIN IT'S CURRENT INTENSITY OVER THE NEXT 12 HOURS AND THEN WEAKEN AS THE SYSTEM ENCOUNTERS COOLER SEA SURFACE TEMPERATURES AND INCREASING VERTICAL SHEAR. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 050600Z1 IS 22 FEET. NEXT WARNINGS AT 042100Z7 AND 050900Z4.// ========================================================================= WTXS31 PGTW 20050204 21:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 14S (GERARD) WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 041800Z3 --- NEAR 28.5S5 58.5E8 MOVEMENT PAST SIX HOURS - 160 DEGREES AT 23 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 - 060 NM NORTHEAST QUADRANT 080 NM SOUTHEAST QUADRANT 060 NM SOUTHWEST QUADRANT 045 NM NORTHWEST QUADRANT REPEAT POSIT: 28.5S5 58.5E8 --- FORECASTS: 12 HRS, VALID AT: 050600Z1 --- 33.2S8 60.6E2 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT BECOMING EXTRATROPICAL VECTOR TO 24 HR POSIT: 145 DEG/ 29 KTS --- 24 HRS, VALID AT: 051800Z4 --- 38.0S1 64.8E8 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT BECOMING EXTRATROPICAL VECTOR TO 36 HR POSIT: 135 DEG/ 31 KTS --- 36 HRS, VALID AT: 060600Z2 --- 42.2S8 70.8E5 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT EXTRATROPICAL --- REMARKS: 042100Z7 POSITION NEAR 29.7S8 59.0E4. TROPICAL CYCLONE (TC) 14S (GERARD), LOCATED APPROXIMATELY 465 NM SOUTH-SOUTHEAST OF LA REUNION, HAS TRACKED SOUTH-SOUTHEASTWARD AT 23 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 041730Z5 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 AND 55 KNOTS. RECENT ANIMATED ENHANCED WATER VAPOR SATELLITE IMAGERY REVEALS THE SYSTEM IS RAPIDLY TRACKING POLEWARD UNDER THE INFLUENCE OF A TRANSI- ENT MAJOR SHORTWAVE TROUGH. TC 14S IS FORECAST TO MAINTAIN A GENERAL SOUTHEAST TRACK OVER THE NEXT 24 TO 36 HOURS. IT IS EXPECTED TO BECOME EXTRATROPICAL AFTER TAU 12 AND FULLY EXTRATROPICAL BY TAU 36. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 041800Z3 IS 10 FEET. NEXT WARNINGS AT 050900Z4 AND 052100Z8.// ========================================================================= WTXS31 PGTW 20050205 09:00z MSGID/GENADMIN/NAVPACMETOCCEN PEARL HARBOR HI/JTWC// SUBJ/TROPICAL CYCLONE WARNING// RMKS/ 1. TROPICAL CYCLONE 14S (GERARD) WARNING NR 004 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 050600Z1 --- NEAR 33.8S4 62.4E2 MOVEMENT PAST SIX HOURS - 145 DEGREES AT 32 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT BECOMING EXTRATROPICAL REPEAT POSIT: 33.8S4 62.4E2 --- FORECASTS: 12 HRS, VALID AT: 051800Z4 --- 39.1S3 66.7E9 MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT EXTRATROPICAL VECTOR TO 24 HR POSIT: 135 DEG/ 39 KTS --- 24 HRS, VALID AT: 060600Z2 --- 44.5S3 74.2E3 MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT EXTRATROPICAL --- REMARKS: 050900Z4 POSITION NEAR 35.1S9 63.5E4. TROPICAL CYCLONE (TC) 14S (GERARD), LOCATED APPROXIMATELY 835 NM SOUTH-SOUTHEAST OF LA REUNION, HAS TRACKED SOUTHEASTWARD AT 32 KNOTS OVER THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 050530Z3 MULTISPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 25 KNOTS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 050600Z1 IS 08 FEET. 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.//
Tropical cyclone tracks developed by Michael Bath using operational warnings and advisories.
Document: tropical_cyclone_gerard_jtwc_advisories.htm
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