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ABPW10 PGTW 300230 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS REISSUED/300230Z-300600ZMAY2024// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/291951ZMAY2024// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: (1) AT 29MAY24 1800Z, TROPICAL STORM 01W (EWINIAR) WAS LOCATED NEAR 27.3N 133.9E, APPROXIMATELY 330 NM EAST OF KADENA AB, AND HAD TRACKED NORTHEASTWARD AT 13 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 55 KNOTS GUSTING TO 70 KNOTS. SEE REF A (WTPN31 PGTW 292100) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: (1) AN AREA OF CONVECTION (INVEST 94W) HAS PERSISTED NEAR 17.9N 113.4E, APPROXIMATELY 219 NM SOUTHEAST OF HAIKOU CHINA. ANIMATED MULTISPECTRAL SATELLITE IMAGERY AND A 292311Z SSMIS 37GHZ MICROWAVE IMAGE INDICATE CLEAR CONVECTIVE BANDING. A WEAKLY DEFINED LOW LEVEL CIRCULATION AND TOTAL PRECIPITABLE WATER LOOPS VERIFY INCREASED TURNING AND DEEPENING CONVECTION OVER THE PAST 12 HOURS. ENVIRONMENTAL ANALYSIS INDICATES THE AREA OF CONVECTION IS SUPPORTED BY WARM (SST) SEA SURFACE TEMPERATURES (27-29C) AS WELL AS LOW VERTICAL WIND SHEAR (10- 15KTS) AND WEAK SOUTHERLY STEERING FLOW. THERE IS OVER 200 NM BETWEEN THE CIRCULATION CENTER AND MAINLAND CHINA, LEAVING PLENTY OF ROOM FOR FURTHER DEVELOPMENT OVER THE NEXT 2 DAYS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 13 TO 18 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS LOW. (2) NO OTHER SUSPECT AREAS. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 2. SOUTH PACIFIC AREA (WEST COAST OF SOUTH AMERICA TO 135 EAST): A. TROPICAL CYCLONE SUMMARY: NONE. B. TROPICAL DISTURBANCE SUMMARY: NONE. C. SUBTROPICAL SYSTEM SUMMARY: NONE. 3. JUSTIFICATION FOR REISSUE: ADDED LOW AREA IN PARA. 1.B.(1).//// NNNN
ABPW10 PGTW 300600 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/SIGNIFICANT TROPICAL WEATHER ADVISORY FOR THE WESTERN AND SOUTH PACIFIC OCEANS/300600Z-310600ZMAY2024// REF/A/MSG/JOINT TYPHOON WRNCEN PEARL HARBOR HI/300151ZMAY2024// AMPN/REF A IS A TROPICAL CYCLONE WARNING.// RMKS/ 1. WESTERN NORTH PACIFIC AREA (180 TO MALAY PENINSULA): A. TROPICAL CYCLONE SUMMARY: (1) AT 30MAY24 0000Z, TROPICAL STORM 01W (EWINIAR) WAS LOCATED NEAR 27.9N 134.9E, APPROXIMATELY 388 NM EAST-NORTHEAST OF KADENA AB, AND HAD TRACKED NORTHEASTWARD AT 11 KNOTS OVER THE PAST SIX HOURS. MAXIMUM SUSTAINED SURFACE WINDS WERE ESTIMATED AT 50 KNOTS GUSTING TO 65 KNOTS. SEE REF A (WTPN31 PGTW 300300) FOR FURTHER DETAILS. (2) NO OTHER TROPICAL CYCLONES. B. TROPICAL DISTURBANCE SUMMARY: (1) THE AREA OF CONVECTION (INVEST 94W) PREVIOUSLY LOCATED NEAR 17.9N 113.4E IS NOW LOCATED NEAR 17.8N 112.9E, APPROXIMATELY 201 NM SOUTHEAST OF HAIKU, CHINA. ANIMATED MULTISPECTRAL SATELLITE IMAGERY AND A 300450Z HIMAWARI-9 VIS IMAGE INDICATE A CONSOLIDATING LOW LEVEL CIRCULATION CENTER (LLCC) WITH DEEPENING CONVECTION TO THE SOUTHWEST OVER THE PAST 12 HOURS. ENVIRONMENTAL ANALYSIS INDICATES THE AREA OF CONVECTION IS SUPPORTED BY WARM (SST) SEA SURFACE TEMPERATURES (29-30C) AS WELL AS A POCKET OF LOW VERTICAL WIND SHEAR (10-15KTS) AND MODERATE EQUATORWARD OUTFLOW ALOFT. GLOBAL MODELS AE IN AGREEMENT THAT 94W WILL CONTINUE TO TRACK NORTH TOWARDS SOUTHERN CHINA. DEVELOMENT OF THE SYSTEM WILL BE LIMITED DUE TO THE VERY SHORT WINDOW OF OPPORTUNITY TO FORM BEFORE MOVING OVER LAND. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 22 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS UPGRADED TO MEDIUM.
TD b Issued at 2024/05/30 10:05 UTC Analysis at 05/30 09 UTC Grade TD Scale - Intensity - Center position N17°05′ (17.1°) E112°05′ (112.1°) Direction and speed of movement NW Slow Central pressure 1000 hPa Maximum sustained wind speed near center 15 m/s (30 kt) Maximum wind gust speed 23 m/s (45 kt) Forecast for 05/31 09 UTC Grade TS Intensity - Center position of probability circle N21°10′ (21.2°) E112°40′ (112.7°) Direction and speed of movement N 20 km/h (10 kt) Central pressure 998 hPa Maximum sustained wind speed near center 18 m/s (35 kt) Maximum wind gust speed 25 m/s (50 kt) Radius of probability circle 130 km (70 NM) Forecast for 06/01 06 UTC Grade TS Intensity - Center position of probability circle N23°05′ (23.1°) E113°35′ (113.6°) Direction and speed of movement NNE 10 km/h (6 kt) Central pressure 1000 hPa Maximum sustained wind speed near center 18 m/s (35 kt) Maximum wind gust speed 25 m/s (50 kt) Radius of probability circle 200 km (110 NM) Forecast for 06/02 06 UTC Grade TD Intensity - Center position of probability circle N25°35′ (25.6°) E118°35′ (118.6°) Direction and speed of movement ENE 25 km/h (13 kt) Central pressure 1002 hPa Radius of probability circle 260 km (140 NM)
WTPN21 PGTW 302130 MSGID/GENADMIN/JOINT TYPHOON WRNCEN PEARL HARBOR HI// SUBJ/TROPICAL CYCLONE FORMATION ALERT// RMKS/ 1. FORMATION OF A SIGNIFICANT TROPICAL CYCLONE IS POSSIBLE WITHIN 075 NM EITHER SIDE OF A LINE FROM 17.4N 112.1E TO 21.5N 112.3E 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 18 TO 23 KNOTS. METSAT IMAGERY AT 301800Z INDICATES THAT A CIRCULATION CENTER IS LOCATED NEAR 17.5N 112.1E. THE SYSTEM IS MOVING WEST-NORTHWESTWARD AT 02 KNOTS. 2. REMARKS:ANIMATED ENHANCED INFRARED (EIR) SATELLITE IMAGERY DEPICTS A CONSOLIDATED LLCC WITH DEEP CONVECTION BUILDING OVER THE CENTER AND A 301356Z PARTIAL METOP-B ASCAT IMAGE DEPICTING A SYMMETRICAL CIRCULATION. ANALYSIS OF THE ENVIRONMENT IS FAVORABLE DUE TO LOW VERTICAL WIND SHEAR (10-15KTS), WARM SEA SURFACE TEMPERATURES (29-30C), AND GOOD UPPER-LEVEL DIVERGENCE. DEVELOPMENT FOR THIS SYSTEM IS LIMITED BY THE PROXIMITY OF THE AREA OF CONVECTION TO MAINLAND CHINA, BUT THE AMERICAN MODEL SHOWS DEVELOPMENT OVER THE NEXT 24 HOURS. MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 18 TO 23 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1005 MB. THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24 HOURS IS HIGH. 3. THIS ALERT WILL BE REISSUED, UPGRADED TO WARNING OR CANCELLED BY 312130Z. // NNNN
Issued at 2024/05/31 01:20 UTC Analysis at 05/31 00 UTC Grade TD Scale - Intensity - Center position N19°00′ (19.0°) E112°10′ (112.2°) Direction and speed of movement N Slow Central pressure 1000 hPa Maximum sustained wind speed near center 15 m/s (30 kt) Maximum wind gust speed 23 m/s (45 kt)
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T2402(Maliksi) Issued at 2024/05/31 09:45 UTC Analysis at 05/31 09 UTC Grade TS Scale - Intensity - Center position N20°30′ (20.5°) E111°55′ (111.9°) Direction and speed of movement N 15 km/h (7 kt) Central pressure 998 hPa Maximum sustained wind speed near center 18 m/s (35 kt) Maximum wind gust speed 25 m/s (50 kt)
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Visit the Caribbean-Central America Weather Thread where you can find at first post web cams,radars and observations from Caribbean basin members Click Here
Visit the Caribbean-Central America Weather Thread where you can find at first post web cams,radars and observations from Caribbean basin members Click Here