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熱帯低気圧 b
2025年11月28日10時30分発表
28日09時の実況
種別 熱帯低気圧
大きさ -
強さ -
存在地域 南シナ海
中心位置 北緯3度25分 (3.4度)
東経104度00分 (104.0度)
進行方向、速さ 東 ゆっくり
中心気圧 1008 hPa
中心付近の最大風速 15 m/s (30 kt)
最大瞬間風速 23 m/s (45 kt)
29日09時の予報
種別 台風
強さ -
存在地域 南シナ海
予報円の中心 北緯4度40分 (4.7度)
東経105度40分 (105.7度)
進行方向、速さ 北東 ゆっくり
中心気圧 1002 hPa
中心付近の最大風速 18 m/s (35 kt)
最大瞬間風速 25 m/s (50 kt)
予報円の半径 130 km (70 NM)
30日09時の予報
種別 台風
強さ -
存在地域 南シナ海
予報円の中心 北緯7度05分 (7.1度)
東経108度25分 (108.4度)
進行方向、速さ 北東 15 km/h (9 kt)
中心気圧 1002 hPa
中心付近の最大風速 18 m/s (35 kt)
最大瞬間風速 25 m/s (50 kt)
予報円の半径 200 km (110 NM)
01日09時の予報
種別 熱帯低気圧
強さ -
存在地域 南シナ海
予報円の中心 北緯9度40分 (9.7度)
東経110度05分 (110.1度)
進行方向、速さ 北北東 15 km/h (8 kt)
中心気圧 1008 hPa
予報円の半径 260 km (140 NM)
- WTPQ31 RJTD 280000
- RSMC TROPICAL CYCLONE PROGNOSTIC REASONING
- REASONING NO. 1 FOR TD LOCATED AT 3.4N 104.0E
- 1.GENERAL COMMENTS
- A TD IS LOCATED AT 3.4N, 104.0E. INFORMATION ON THE CURRENT
- POSITION IS BASED ON ANIMATED MSI AND SURFACE OBSERVATIONS.
- POSITIONAL ACCURACY IS FAIR. CENTRAL PRESSURE IS 1008HPA AND
- MAXIMUM SUSTAINED WINDS NEAR THE CENTER ARE 30KNOTS. INFORMATION
- ON THE CURRENT INTENSITY IS BASED ON EARLY STAGE DVORAK INTENSITY
- ANALYSES AND SURFACE OBSERVATIONS.
- 2.SYNOPTIC SITUATION
- THE SYSTEM IS MOVING SLOWLY EASTWARD DUE TO WEAK STEERING FLOW.
- ANIMATED MSI SHOWS CB CLUSTERS ARE SCATTERED AROUND THE CSC.
- DMSP-F17/SSMIS 89 GHZ MICROWAVE IMAGERY SHOWS THE SYSTEM HAS
- ACTIVE CONVECTIVE CLOUD CLUSTERS AROUND THE CSC.
- 3.TRACK FORECAST
- THE SYSTEM WILL MOVE NORTHEASTWARD DUE TO WEAK STEERING FLOW UNTIL
- FT48. THE SYSTEM WILL THEN MOVE NORTH-NORTHEASTWARD UNTIL FT72.
- THE TRACK FORECAST IS BASED ON GSM PREDICTIONS, AND REFERENCE TO
- OTHER NWP MODELS. TRACK FORECAST CONFIDENCE IS FAIR BECAUSE ALL
- NWP MODELS ARE IN CLOSE AGREEMENT.
- 4.INTENSITY FORECAST
- THE SYSTEM WILL DEVELOP UNTIL FT24 DUE TO THE INFLUENCE OF
- INTERACTION WITH HIGH SSTS, HIGH TCHP, WEAK VWS AND GOOD
- UPPER-LEVEL OUTFLOW. THE SYSTEM WILL THEN MAINTAIN ITS INTENSITY
- UNTIL FT48 DUE TO THE INFLUENCE OF INTERACTION WITH HIGH SSTS AND
- REDUCED TCHP. THE SYSTEM WILL THEN WEAKEN UNTIL FT72 DUE TO THE
- INFLUENCE OF INTERACTION WITH REDUCED TCHP AND INCREASED VWS. THE
- SYSTEM WILL BE UPGRADED TO TS INTENSITY BY FT24. THE SYSTEM WILL
- THEN WEAKEN TO TD INTENSITY BY FT72. THE INTENSITY FORECAST IS
- BASED ON A CONSENSUS OF GUIDANCE DATA INCLUDING GSM.
- =
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