Tropical
Cyclones
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Tropical Cyclone 200301 [Australian Region][South Indian Ocean][South Pacific Ocean] |
WTXS31 PGTW 20020906 21:00z 1. TROPICAL CYCLONE 01S WARNING NR 001 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 061800Z5 --- NEAR 4.0S4 57.9E1 MOVEMENT PAST SIX HOURS - 250 DEGREES AT 11 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: 4.0S4 57.9E1 --- FORECASTS: 12 HRS, VALID AT: 070600Z3 --- 4.4S8 55.7E7 MAX SUSTAINED WINDS - 035 KT, GUSTS 045 KT VECTOR TO 24 HR POSIT: 265 DEG/ 10 KTS --- 24 HRS, VALID AT: 071800Z6 --- 4.5S9 53.6E4 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 36 HR POSIT: 275 DEG/ 10 KTS --- 36 HRS, VALID AT: 080600Z4 --- 4.3S7 51.7E3 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 48 HR POSIT: 275 DEG/ 09 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 081800Z7 --- 4.1S5 49.9E2 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 062100Z9 POSITION NEAR 4.1S5 57.3E5. TROPICAL CYCLONE 01S HAS DEVELOPED OVER THE NEAR EQUATORIAL TROUGH APPROXIMATELY 835 NM EAST-SOUTHEAST OF THE COAST OF SOMALIA. TROPICAL CYCLONE 01S HAS TRACKED WEST-SOUTHWEST AT 11 KNOTS DURING THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 061730Z7 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 35 KNOTS. ANIMATION AND SSM/I IMAGERY DEPICT A SMALL (APPROX. 100 NM) SYSTEM WITH A BANDING FEATURE WRAPPING INTO THE CENTER FROM THE SOUTHEAST. A LOW/MID LEVEL RIDGE EXTENDING OFF OF THE EAST COAST OF AFRICA IS FORECAST TO REMAIN QUASI-STATIONARY THROUGH THE PERIOD. AVAILABLE NWP (UKMET GRID AND NOGAPS) AGREES WITH A GENERALLY, WESTWARD TRACK THROUGH THE FORECAST. THE SYSTEM SHOULD GRADUALLY WEAKEN DURING THE NEXT 48 HOURS AS IT MOVES TOWARD THE AFRICAN COAST. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 061800Z5 IS 10 FEET. NEXT WARNINGS AT 070900Z6 AND 072100Z0.// ========================================================================= WTXS31 PGTW 20020907 09:00z 1. TROPICAL CYCLONE 01S WARNING NR 002 01 ACTIVE TROPI CAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 070600Z3 --- NEAR 4.2S6 56.5E6 MOVEMENT PAST SIX HOURS - 270 DEGREES AT 08 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: 4.2S6 56.5E6 --- FORECASTS: 12 HRS, VALID AT: 071800Z6 --- 4.2S6 54.6E5 MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 24 HR POSIT: 280 DEG/ 09 KTS --- 24 HRS, VALID AT: 080600Z4 --- 3.9S2 52.8E5 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 36 HR POSIT: 275 DEG/ 10 KTS --- 36 HRS, VALID AT: 081800Z7 --- 3.7S0 50.8E3 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 48 HR POSIT: 285 DEG/ 11 KTS --- EXTENDED OUTLOOK: 48 HRS, VALID AT: 090600Z5 --- 3.2S5 48.7E9 MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 070900Z6 POSITION NEAR 4.2S6 56.0E1. TROPICAL CYCLONE 01S HAS DEVELOPED OVER THE NEAR EQUATORIAL TROUGH APPROXIMATELY 850 NM EAST-SOUTHEAST OF THE COAST OF SOMALIA. TROPICAL CYCLONE 01S HAS TRACKED WESTWARD AT 08 KNOTS DURING THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 070530Z5 MULTISPECTRAL SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 30 AND 35 KNOTS. ANIMATED VISIBLE SATELLITE IMAGERY AND A 070529Z3 SPECIAL SENSOR MICROWAVE IMAGERY (SSM/I) PASS DEPICT THE DEEP CONVECTION SOUTHWEST OF THE LOW LEVEL CIRCULATION CENTER (LLCC) AND AN OVERALL SMALL SYSTEM. A LOW/MID LEVEL RIDGE EXTENDING OFF OF THE EAST COAST OF AFRICA IS FORECAST TO REMAIN QUASI-STATIONARY THROUGH THE PERIOD. AVAILABLE NWP (UKMET GRID AND NOGAPS) AGREES WITH A GENERALLY WESTWARD TRACK THROUGH THE FORECAST. THE SYSTEM SHOULD GRADUALLY WEAKEN DURING THE NEXT 48 HOURS AS IT MOVES TOWARD THE AFRICAN COAST. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 070600Z3 IS 12 FEET. NEXT WARNINGS AT 072100Z0 AND 080900Z7.// ========================================================================= WTXS31 PGTW 20020907 21:00z 1. TROPICAL CYCLONE 01S WARNING NR 003 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 071800Z6 --- NEAR 4.2S6 54.7E6 MOVEMENT PAST SIX HOURS - 270 DEGREES AT 07 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER REPEAT POSIT: 4.2S6 54.7E6 --- FORECASTS: 12 HRS, VALID AT: 080600Z4 --- 4.2S6 53.0E8 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 24 HR POSIT: 275 DEG/ 09 KTS --- 24 HRS, VALID AT: 081800Z7 --- 4.1S5 51.2E8 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATING AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER VECTOR TO 36 HR POSIT: 275 DEG/ 09 KTS --- 36 HRS, VALID AT: 090600Z5 --- 4.0S4 49.3E6 MAX SUSTAINED WINDS - 020 KT, GUSTS 030 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 072100Z0 POSITION NEAR 4.2S6 54.3E2. TROPICAL CYCLONE 01S HAS TRACKED WESTWARD AT 08 KNOTS DURING THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 071130Z2 ENHANCED INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 30 KNOTS. INFRARED AND WATER VAPOR ANIMATION DEPICT THAT THE UPPER EASTERLIES CONTINUE TO HAMPER DEVELOPMENT. A LOW/MID LEVEL RIDGE EXTENDING OFF OF THE EAST COAST OF AFRICA IS FORECAST TO REMAIN QUASI-STATIONARY THROUGH THE PERIOD. AVAILABLE NWP (UKMET GRID, GFDN, AVN, AND NOGAPS) WERE USED AS A BASIS FOR THE FORECAST. THE SYSTEM SHOULD CONTINUE ON A WEAKENING TREND AS IS TRACKS BENEATH THE EQUATORWARD SIDE OF THE SUBTROPICAL RIDGE AXIS. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 071800Z6 IS 12 FEET. NEXT WARNINGS AT 080900Z7 AND 082100Z1.// ========================================================================= WTXS31 PGTW 20020908 09:00z 1. TROPICAL CYCLONE 01S WARNING NR 004 01 ACTIVE TROPICAL CYCLONE IN SOUTHIO MAX SUSTAINED WINDS BASED ON ONE-MINUTE AVERAGE --- WARNING POSITION: 080600Z4 --- NEAR 4.1S5 54.0E9 MOVEMENT PAST SIX HOURS - 295 DEGREES AT 02 KTS POSITION ACCURATE TO WITHIN 060 NM POSITION BASED ON CENTER LOCATED BY SATELLITE PRESENT WIND DISTRIBUTION: MAX SUSTAINED WINDS - 030 KT, GUSTS 040 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER REPEAT POSIT: 4.1S5 54.0E9 --- FORECASTS: 12 HRS, VALID AT: 081800Z7 --- 3.9S2 52.8E5 MAX SUSTAINED WINDS - 025 KT, GUSTS 035 KT DISSIPATED AS A SIGNIFICANT TROPICAL CYCLONE OVER WATER --- REMARKS: 080900Z7 POSITION NEAR 4.1S5 53.7E5. TROPICAL CYCLONE 01S HAS DRIFTED WEST-NORTHWESTWARD AT 02 KNOTS DURING THE PAST 6 HOURS. THE WARNING POSITION IS BASED ON 080530Z6 VISIBLE INFRARED SATELLITE IMAGERY. THE WARNING INTENSITY IS BASED ON SATELLITE CURRENT INTENSITY ESTIMATES OF 25 TO 35 KNOTS. INFRARED AND WATER VAPOR ANIMATION INDICATES THAT THE LOW LEVEL CIRCULATION CENTER (LLCC) HAS DISSIPATED ALMOST ENTIRELY AND WHAT REMAINS IS SCATTERED AND CYCLING DEEP CONVECTION IN THE AREA. OUR FORECAST IS FOR A CONTINUED WESTWARD DRIFT UNDER THE INFLUENCE OF THE LOW TO MID-LEVEL RIDGE AS THE SYSTEM DISSIPATES OVER THE NEXT 12 HOURS. AVAILABLE NWP (UKMET GRID, AVN, AND NOGAPS) ARE IN GOOD AGREEMENT WITH DISSIPATION, THOUGH AVN CARRIES A VERY WEAK CIRCULATION OUT FOR A LONGER PERIOD. MAXIMUM SIGNIFICANT WAVE HEIGHT AT 080600Z4 IS 12 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.//
Document: 200301.html
Updated: 8th September, 2002 |
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