Tropical
Cyclones
[Index] |
Tropical Cyclone 200101 [Australian Region][South Indian Ocean][South Pacific Ocean] |
WTXS31 PGTW 20000801 21:00z 1. TROPICAL CYCLONE 01S WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 011800Z0 --- NEAR 6.3S9 77.7E1 MOVEMENT PAST SIX HOURS - 270 DEGREES AT 06 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 REPEAT POSIT: 6.3S9 77.7E1 --- FORECASTS: 12 HRS, VALID AT: 020600Z8 --- 6.7S3 76.3E6 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 24 HR POSIT: 260 DEG/ 06 KTS --- 24 HRS, VALID AT: 021800Z1 --- 6.9S5 75.2E4 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTH SEMICIRCLE 030 NM ELSEWHERE VECTOR TO 36 HR POSIT: 255 DEG/ 06 KTS --- 36 HRS, VALID AT: 030600Z9 --- 7.2S9 74.0E1 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTH SEMICIRCLE 030 NM ELSEWHERE VECTOR TO 48 HR POSIT: 255 DEG/ 07 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 031800Z2 --- 7.6S3 72.7E6 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 045 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 72 HR POSIT: 245 DEG/ 07 KTS --- 72 HRS, VALID AT: 041800Z3 --- 8.7S5 70.0E7 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 045 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE --- REMARKS: 012100Z4 POSITION NEAR 6.4S0 77.4E8. TROPICAL CYCLONE (TC) 01S, LOCATED APPROXIMATELY 320 NM EAST- NORTHEAST OF DIEGO GARCIA, HAS TRACKED WESTWARD AT 07 KNOTS DURING THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 011730Z2 INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 30 AND 35 KNOTS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS IMPROVING ORGANIZATION OVER THE PAST 6 HOURS WITH CONVECTION DEVELOPING NORTHEAST OF THE FULLY- EXPOSED LOW-LEVEL CIRCULATION CENTER (LLCC). A 011313Z9 QUIKSCAT SCATTEROMETER PASS HAD EARLIER INDICATED 20-30 KTS ON THE WESTERN SIDE OF THE SYSTEM. HOWEVER, UW-CIMSS ANALYSIS HAD INDICATED MODERATE VERTICAL WIND SHEAR OVER THE EXPOSED LLCC, BUT THE RECENT ANALYSIS SHOWS WEAK TO MODERATE SHEAR. RECENT SYNOPTIC REPORTS FROM DIEGO GARCIA HAVE INDICATED INCREASED SOUTHEASTERLY WINDS (SUSTAINED) NEAR 20 KNOTS. TC 01S SHOULD TRACK WEST-SOUTHWESTWARD UNDER THE STEERING INFLUENCE OF THE LOW-MID LEVEL RIDGE SOUTHEAST OF THE SYSTEM. TC 01S IS EXPECTED TO INTENSIFY SLIGHTLY UNDER AN IMPROVED ENVIRONMENT, BUT IS EXPECTED TO REMAIN NORTH OF THE 200 MB SUB-TROPICAL RIDGE AXIS UNDER MODERATE NORTHEASTERLIES WHICH WILL HINDER FURTHER DEVELOPMENT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 011800Z0 IS 08 FEET. REFER TO WWIO31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 020300Z5 (DTG 020151Z9), 020900Z1 (DTG 020751Z5), 021500Z8 (DTG 021351Z2) AND 022100Z5 (DTG 021951Z8).// ========================================================================= WTXS31 PGTW 20000802 03:00z 1. TROPICAL CYCLONE 01S WARNING NR 002 01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 020000Z2 --- NEAR 6.4S0 76.7E0 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 - 035 KT, GUSTS 045 KT REPEAT POSIT: 6.4S0 76.7E0 --- FORECASTS: 12 HRS, VALID AT: 021200Z5 --- 6.7S3 75.5E7 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTH SEMICIRCLE 030 NM ELSEWHERE VECTOR TO 24 HR POSIT: 255 DEG/ 06 KTS --- 24 HRS, VALID AT: 030000Z3 --- 7.0S7 74.3E4 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTH SEMICIRCLE 030 NM ELSEWHERE VECTOR TO 36 HR POSIT: 245 DEG/ 06 KTS --- 36 HRS, VALID AT: 031200Z6 --- 7.5S2 73.1E1 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTH SEMICIRCLE 030 NM ELSEWHERE VECTOR TO 48 HR POSIT: 250 DEG/ 06 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 040000Z4 --- 7.9S6 71.9E7 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 045 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 72 HR POSIT: 235 DEG/ 07 KTS --- 72 HRS, VALID AT: 050000Z5 --- 9.5S4 69.6E1 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 045 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE --- REMARKS: 020300Z5 POSITION NEAR 6.5S1 76.4E7. TROPICAL CYCLONE (TC) 01S, LOCATED APPROXIMATELY 260 NM EAST- NORTHEAST OF DIEGO GARCIA, HAS TRACKED WESTWARD AT 09 KNOTS DURING THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 012330Z9 INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 30 TO 45 KNOTS. ANIMATED INFRARED SATELLITE IMAGERY INDICATES THAT THE LOW-LEVEL CIRCULATION CENTER (LLCC) HAS MOVED BENEATH THE EASTERN EDGE OF THE CONVECTION OVER THE PAST 6 HOURS. RECENT VISIBLE SATELLITE IMAGERY DEPICTS A PARTIALLY EXPOSED LLCC. THE UW-CIMSS ANALYSIS INDICATES WEAK TO MODERATE VERTICAL WIND SHEAR. TC 01S SHOULD TRACK WEST-SOUTHWESTWARD UNDER THE STEERING INFLUENCE OF THE LOW-MID LEVEL RIDGE SOUTHEAST OF THE SYSTEM. TC 01S IS EXPECTED TO INTENSIFY SLIGHTLY UNDER AN IMPROVED ENVIRONMENT, BUT IS EXPECTED TO REMAIN NORTH OF THE 200 MB SUB-TROPICAL RIDGE AXIS UNDER MODERATE NORTHEASTERLIES WHICH WILL HINDER FURTHER DEVELOPMENT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 020000Z2 IS 08 FEET. REFER TO WWIO31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 020900Z1 (DTG 020751Z5), 021500Z8 (DTG 021351Z2), 022100Z5 (DTG 021951Z8) AND 030300Z6 (DTG 030151Z0).// ========================================================================= WTXS31 PGTW 20000802 09:00z IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT LOUIS 1. TROPICAL CYCLONE 01S WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 020600Z8 --- NEAR 5.9S4 77.2E6 MOVEMENT PAST SIX HOURS - 270 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 REPEAT POSIT: 5.9S4 77.2E6 --- FORECASTS: 12 HRS, VALID AT: 021800Z1 --- 6.0S6 76.7E0 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTH SEMICIRCLE 030 NM ELSEWHERE VECTOR TO 24 HR POSIT: 245 DEG/ 04 KTS --- 24 HRS, VALID AT: 030600Z9 --- 6.3S9 76.0E3 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTH SEMICIRCLE 030 NM ELSEWHERE VECTOR TO 36 HR POSIT: 240 DEG/ 06 KTS --- 36 HRS, VALID AT: 031800Z2 --- 6.9S5 74.9E0 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTH SEMICIRCLE 030 NM ELSEWHERE VECTOR TO 48 HR POSIT: 245 DEG/ 08 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 040600Z0 --- 7.5S2 73.5E5 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 045 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 72 HR POSIT: 245 DEG/ 08 KTS --- 72 HRS, VALID AT: 050600Z1 --- 8.8S6 70.7E4 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 045 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE --- REMARKS: 020900Z1 POSITION NEAR 5.9S4 77.1E5. TROPICAL CYCLONE (TC) 01S, LOCATED APPROXIMATELY 292 NM NORTHEAST OF DIEGO GARCIA, HAS DRIFTED WESTWARD AT 03 KNOTS DURING THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 020530Z0 INFRARED AND VISIBLE SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 TO 45 KNOTS. ANIMATED INFRARED AND VISIBLE SATELLITE IMAGERY CONTINUES TO DEPICT A PARTIALLY EXPOSED LOW-LEVEL CIRCULATION CENTER WITH THE ASSOCIATED CONVECTION DISPLACED TO THE WEST. 200 MB ANALYSIS INDICATES WEAK TO MODERATE VERTICAL WIND SHEAR. A LOW/MID-LEVEL HIGH WITH ASSOCIATED RIDGE SITUATED OFF THE SOUTHWESTERN COAST OF AUSTRALIA NEAR 30.4S7 101.0E IS FORECAST TO WEAKEN AND SHIFT EAST THROUGH THE PERIOD WITH AN APPROACH OF A MID-LATITUDE TROUGH FROM THE WEST. TC 01S SHOULD TRACK GENERALLY WESTWARD DURING THE NEXT 12 HOURS BEFORE TURNING MORE SOUTHWESTWARD WITHIN A WEAKNESS IN THE SUBTROPICAL RIDGE. TC 01S IS EXPECTED TO INTENSIFY SLIGHTLY UNDER AN IMPROVED ENVIRONMENT, BUT IS FORECAST TO REMAIN NORTH OF THE 200 MB SUB-TROPICAL RIDGE AXIS UNDER MODERATE NORTHEASTERLIES WHICH WILL HINDER FURTHER DEVELOPMENT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 020600Z8 IS 08 FEET. NEXT WARNINGS AT 022100Z5 (DTG 021952Z9) AND 030900Z2 (DTG 030752Z7).// ========================================================================= WTXS31 PGTW 20000802 15:00z IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT LOUIS 1. TROPICAL CYCLONE 01S WARNING NR 004 01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 021200Z5 --- NEAR 5.9S4 76.7E0 MOVEMENT PAST SIX HOURS - 235 DEGREES AT 04 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 REPEAT POSIT: 5.9S4 76.7E0 --- FORECASTS: 12 HRS, VALID AT: 030000Z3 --- 6.3S9 76.1E4 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 060 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 24 HR POSIT: 230 DEG/ 05 KTS --- 24 HRS, VALID AT: 031200Z6 --- 6.9S5 75.4E6 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 060 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 36 HR POSIT: 240 DEG/ 05 KTS --- 36 HRS, VALID AT: 040000Z4 --- 7.4S1 74.6E7 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 060 NM SOUTH SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 48 HR POSIT: 240 DEG/ 05 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 041200Z7 --- 7.9S6 73.7E7 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 065 NM SOUTH SEMICIRCLE 045 NM ELSEWHERE VECTOR TO 72 HR POSIT: 240 DEG/ 06 KTS --- 72 HRS, VALID AT: 051200Z8 --- 9.1S0 71.7E5 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 065 NM SOUTH SEMICIRCLE 045 NM ELSEWHERE --- REMARKS: 021500Z8 POSITION NEAR 6.0S6 76.6E9. TROPICAL CYCLONE (TC) 01S, LOCATED APPROXIMATELY 268 NM NORTHEAST OF DIEGO GARCIA, HAS DRIFTED SOUTHWESTWARD AT 04 KNOTS DURING THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 021130Z7 INFRARED AND VISIBLE SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 TO 45 KNOTS. ANIMATED INFRARED AND VISIBLE SATELLITE IMAGERY DEPICTS THAT THE LOW-LEVEL CIRCULATION CENTER IS DISPLACED APPROXIMATELY 90 NM TO THE EAST OF THE CONVECTION. 200 MB ANALYSIS INDICATES A MODERATE VERTICAL WIND SHEAR ENVIRONMENT. A LOW/MID-LEVEL HIGH WITH ASSOCIATED RIDGE SITUATED OFF THE SOUTHWESTERN COAST OF AUSTRALIA NEAR 30.4S7 101.0E IS FORECAST TO WEAKEN AND SHIFT EAST THROUGH THE PERIOD WITH AN APPROACH OF A MID-LATITUDE TROUGH FROM THE WEST. TC 01S SHOULD TRACK GENERALLY SOUTHWESTWARD WITHIN A WEAKNESS IN THE SUBTROPICAL RIDGE. TC 01S IS EXPECTED TO INTENSIFY SLIGHTLY UNDER AN IMPROVED ENVIRONMENT AS IT TRACKS CLOSER TOWARD THE SUB-TROPICAL RIDGE AXIS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 021200Z5 IS 10 FEET. NEXT WARNINGS AT 022100Z5 (DTG 021952Z9), 030300Z6 (DTG 030152Z1), 030900Z2 (DTG 030752Z7) AND 031500Z9 (DTG 031352Z4).// ========================================================================= WTXS31 PGTW 20000802 21:00z IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT LOUIS 1. TROPICAL CYCLONE 01S WARNING NR 005 01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 021800Z1 --- NEAR 6.2S8 76.4E7 MOVEMENT PAST SIX HOURS - 225 DEGREES AT 04 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 REPEAT POSIT: 6.2S8 76.4E7 --- FORECASTS: 12 HRS, VALID AT: 030600Z9 --- 7.0S7 75.8E0 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 24 HR POSIT: 225 DEG/ 05 KTS --- 24 HRS, VALID AT: 031800Z2 --- 7.7S4 75.1E3 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 060 NM SOUTHEAST SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 36 HR POSIT: 235 DEG/ 05 KTS --- 36 HRS, VALID AT: 040600Z0 --- 8.3S1 74.3E4 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 060 NM SOUTHEAST SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 48 HR POSIT: 240 DEG/ 06 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 041800Z3 --- 8.9S7 73.3E3 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 065 NM SOUTH SEMICIRCLE 045 NM ELSEWHERE VECTOR TO 72 HR POSIT: 250 DEG/ 06 KTS --- 72 HRS, VALID AT: 051800Z4 --- 9.7S6 71.0E8 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 065 NM SOUTH SEMICIRCLE 045 NM ELSEWHERE --- REMARKS: 022100Z5 POSITION NEAR 6.4S0 76.3E6. TROPICAL CYCLONE (TC) 01S, LOCATED APPROXIMATELY 245 NM EAST- NORTHEAST OF DIEGO GARCIA, HAS DRIFTED SOUTHWESTWARD AT 04 KNOTS DURING THE PAST 06 HOURS. THE WARNING POSITION IS BASED ON 021730Z3 INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 TO 45 KNOTS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS THAT THE LOW-LEVEL CIRCULATION CENTER IS DISPLACED APPROXIMATELY 96 NM TO THE NORTHEAST OF THE CONVECTION. 200 MB ANALYSIS INDICATES A MODERATE VERTICAL WIND SHEAR ENVIRONMENT OVER THE SYSTEM. TC 01S IS CURRENTLY UNDER THE STEERING INFLUENCE OF THE LOW-LEVEL SUBTROPICAL RIDGE CENTERED TO THE SOUTHEAST OF THE SYSTEM. A MID-LATITUDE TROUGH TO THE SOUTH OF THE SYSTEM IS CREATING A WEAKNESS IN THE STEERING RIDGE. THIS WEAKNESS WILL ALLOW THE SYSTEM TO TRACK SOUTHWESTWARD THROUGH THE 36 HOUR PERIOD. AFTER THIS PERIOD THE RIDGE MOVING EASTWARD BEHIND THE TROUGH WILL BECOME THE DOMINANT STEERING INFLUENCE. AS A RESULT, THE SYSTEM IS EXPECTED TO TRACK INCREASINGLY WEST-SOUTHWARD THROUGH THE END OF THE FORECAST PERIOD. TC 01S IS EXPECTED TO INTENSIFY SLIGHTLY UNDER AN IMPROVED UPPER LEVEL ENVIRONMENT AS IT TRACKS TOWARD THE SUB-TROPICAL RIDGE AXIS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 021800Z1 IS 10 FEET. NEXT WARNINGS AT 030900Z2 (DTG 030751Z6) AND 032100Z6 (DTG 031951Z9).// ========================================================================= WTXS31 PGTW 20000803 03:00z IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT LOUIS 1. TROPICAL CYCLONE 01S WARNING NR 006 01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 030000Z3 --- NEAR 7.2S9 75.3E5 MOVEMENT PAST SIX HOURS - 225 DEGREES AT 10 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 REPEAT POSIT: 7.2S9 75.3E5 --- FORECASTS: 12 HRS, VALID AT: 031200Z6 --- 8.6S4 74.4E5 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 24 HR POSIT: 210 DEG/ 06 KTS --- 24 HRS, VALID AT: 040000Z4 --- 9.6S5 73.8E8 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 060 NM SOUTHEAST SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 36 HR POSIT: 230 DEG/ 05 KTS --- 36 HRS, VALID AT: 041200Z7 --- 10.2S3 73.1E1 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 060 NM SOUTHEAST SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 48 HR POSIT: 250 DEG/ 06 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 050000Z5 --- 10.6S7 72.0E9 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 065 NM SOUTH SEMICIRCLE 045 NM ELSEWHERE VECTOR TO 72 HR POSIT: 260 DEG/ 05 KTS --- 72 HRS, VALID AT: 060000Z6 --- 11.0S2 70.0E7 MAX SUSTAINED WINDS - 045 KT, GUSTS 055 KT RADIUS OF 035 KT WINDS - 065 NM SOUTH SEMICIRCLE 045 NM ELSEWHERE --- REMARKS: 030300Z6 POSITION NEAR 7.6S3 75.1E3. TROPICAL CYCLONE (TC) 01S, LOCATED APPROXIMATELY 170 NM EAST OF DIEGO GARCIA, HAS TRACKED SOUTHWESTWARD AT 10 KNOTS DURING THE PAST 06 HOURS. THE LOW-LEVEL CIRCULATION CENTER (LLCC) IS VERY DIFFICULT TO FIND IN INFRARED IMAGERY. RELOCATION OF THE SYSTEM IS HIGHLY POSSIBLE ONCE VISIBLE IMAGERY IS AVAILABLE. THE WARNING POSITION IS BASED ON 022330Z0 INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 30 TO 45 KNOTS. ANIMATED INFRARED SATELLITE IMAGERY DEPICTS THAT THE LLCC IS DISPLACED THE NORTHEAST OF THE CONVECTION. 200 MB ANALYSIS INDICATES A MODERATE VERTICAL WIND SHEAR ENVIRONMENT OVER THE SYSTEM. TC 01S IS CURRENTLY UNDER THE STEERING INFLUENCE OF THE LOW-LEVEL SUBTROPICAL RIDGE CENTERED TO THE SOUTHEAST OF THE SYSTEM. A MID- LATITUDE TROUGH TO THE SOUTH OF THE SYSTEM IS CREATING A WEAKNESS IN THE STEERING RIDGE. THIS WEAKNESS WILL ALLOW THE SYSTEM TO TRACK SOUTHWESTWARD THROUGH THE 36 HOUR PERIOD. AFTER THIS PERIOD THE RIDGE MOVING EASTWARD BEHIND THE TROUGH WILL BECOME THE DOMINANT STEERING INFLUENCE. AS A RESULT, THE SYSTEM IS EXPECTED TO TRACK INCREASINGLY WEST-SOUTHWARD THROUGH THE END OF THE FORECAST PERIOD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 030000Z3 IS 15 FEET. NEXT WARNINGS AT 031500Z9 (DTG 031351Z3) AND 040300Z7 (DTG 040151Z1).// ========================================================================= WTXS31 PGTW 20000803 09:00z IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT LOUIS 1. TROPICAL CYCLONE 01S WARNING NR 007 01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 030600Z9 --- NEAR 8.1S9 75.0E2 MOVEMENT PAST SIX HOURS - 205 DEGREES AT 10 KTS POSITION ACCURATE TO WITHIN 090 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT REPEAT POSIT: 8.1S9 75.0E2 --- FORECASTS: 12 HRS, VALID AT: 031800Z2 --- 9.3S2 74.0E1 MAX SUSTAINED WINDS - 040 KT, GUSTS 050 KT RADIUS OF 035 KT WINDS - 040 NM SOUTHEAST SEMICIRCLE 035 NM ELSEWHERE VECTOR TO 24 HR POSIT: 245 DEG/ 11 KTS --- 24 HRS, VALID AT: 040600Z0 --- 10.2S3 72.0E9 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 36 HR POSIT: 265 DEG/ 10 KTS --- 36 HRS, VALID AT: 041800Z3 --- 10.4S5 70.0E7 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 48 HR POSIT: 265 DEG/ 10 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 050600Z1 --- 10.5S6 68.0E4 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 72 HR POSIT: 265 DEG/ 08 KTS --- 72 HRS, VALID AT: 060600Z2 --- 10.7S8 64.9E9 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT --- REMARKS: 030900Z2 POSITION NEAR 8.4S2 74.7E8. TROPICAL CYCLONE (TC) 01S, LOCATED APPROXIMATELY 150 NM EAST- SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTH-SOUTHWESTWARD AT 10 KNOTS DURING THE PAST 06 HOURS. THE LOW-LEVEL CIRCULATION CENTER (LLCC) IS VERY DIFFICULT TO FIND IN SATELLITE IMAGERY. THE WARNING POSITION IS BASED ON 030530Z1 VISIBLE AND INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 30 TO 45 KNOTS. ANIMATED SATELLITE IMAGERY DEPICTS THE CONVECTION BEING SHEARED TO THE SOUTHWEST ABOUT 140 NM FROM THE APPARENT LLCC. 200 MB ANALYSIS INDICATES A MODERATE VERTICAL WIND SHEAR ENVIRONMENT OVER THE SYSTEM. TC 01S IS CURRENTLY UNDER THE STEERING INFLUENCE OF THE LOW-LEVEL SUBTROPICAL RIDGE CENTERED TO THE SOUTHEAST OF THE SYSTEM. A MID-LATITUDE TROUGH TO THE SOUTH OF THE SYSTEM IS CREATING A WEAKNESS IN THE STEERING RIDGE. THIS WEAKNESS WILL ALLOW THE SYSTEM TO TRACK SOUTHWESTWARD THROUGH THE 12 HOUR PERIOD. AFTER THIS PERIOD THE RIDGE MOVING EASTWARD BEHIND THE TROUGH WILL BECOME THE DOMINANT STEERING INFLUENCE. AS A RESULT, THE SYSTEM IS EXPECTED TO TRACK INCREASINGLY WEST-SOUTHWESTWARD THROUGH THE END OF THE FORECAST PERIOD. TC 01S IS FORECAST TO INTENSIFY SLIGHTLY IN THE NEXT 12 HOURS THEN WEAKEN AND REMAIN WEAK IN A MARGINAL SHEAR ENVIRONMENT. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 030600Z9 IS 15 FEET. REFER TO WWPW30 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. NEXT WARNINGS AT 031500Z9 (DTG 031352Z4), 032100Z6 (DTG 031952Z0), 040300Z7 (DTG 040152Z2) AND 040900Z3 (DTG 040752Z8).// ========================================================================= WTXS31 PGTW 20000803 15:00z IMMEDIATE DELIVERY REQ TO AMEMBASSY PORT LOUIS 1. TROPICAL CYCLONE 01S WARNING NR 008 01 ACTIVE TROPICAL CYCLONE IN SOUTHERN HEMISPHERE MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 031200Z6 --- NEAR 8.9S7 74.1E2 MOVEMENT PAST SIX HOURS - 220 DEGREES AT 12 KTS POSITION ACCURATE TO WITHIN 090 NM POSITION BASED ON CENTER LOCATED BY A COMBINATION OF SATELLITE AND EXTRAPOLATION PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER REPEAT POSIT: 8.9S7 74.1E2 --- FORECASTS: 12 HRS, VALID AT: 040000Z4 --- 9.9S8 72.4E3 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 24 HR POSIT: 250 DEG/ 11 KTS --- 24 HRS, VALID AT: 041200Z7 --- 10.7S8 70.4E1 MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 031500Z9 POSITION NEAR 9.2S1 73.7E7. TROPICAL CYCLONE (TC) 01S, LOCATED APPROXIMATELY 145 NM SOUTHEAST OF DIEGO GARCIA, HAS TRACKED SOUTHWESTWARD AT 12 KNOTS DURING THE PAST 06 HOURS. THE LOW-LEVEL CIRCULATION CENTER (LLCC) CAN NOT BE FOUND IN SATELLITE IMAGERY. THE WARNING POSITION IS BASED ON EXTRAPOLATION FROM A PREVIOUS SCATTEROMETER POSITION. THE WARNING INTENSITY IS BASED ON ESTIMATES OF 30 KNOTS FROM NEARBY SYNOPTIC REPORTS. ANIMATED SATELLITE IMAGERY DEPICTS THE CONVECTION BEING SHEARED TO THE SOUTHWEST. THE UW-CIMSS WIND SHEAR PRODUCTS INDICATE AN UNFAVORABLE SHEAR ENVIRONMENT OVER THE SYSTEM. TC 01S IS FORECAST TO TRACK SOUTHWESTWARD UNDER THE STEERING INFLUENCE OF THE LOW-LEVEL SUBTROPICAL RIDGE CENTERED TO THE SOUTHEAST OF THE SYSTEM. THE SYSTEM IS EXPECTED TO COMPLETELY DISSIPATE OVER WATER BY THE 24 HOUR FORECAST POSITION. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 031200Z6 IS 15 FEET. REFER TO WWPW31 RJTX FOR ADDITIONAL SEA HEIGHT INFORMATION. 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.//
Document: 200101.htm
Updated: 14th April, 2004 |
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