813. Tropical Storm Choi-Wan » Text Products



YOUR SURNAME: knack
YOUR CITY: singapore
YOUR STATE: singapore
TIME (e.g. 1800 UTC SAT FEB 22 2020): 1340 UTC THU JUN 3 2021
ADVISORY HEADLINE: CHOI-WAN SHIFTS NORTHWARD AND SHOULD TURN NORTHEAST AS IT BUDGES THROUGH BETWEEN PHILIPPINES AND TAIWAN


INPUT INTERP ATCF: wp042021 CHOI-WAN 20210603 1330 18.81 118.3 W TS 35.0 1002.0 8.83 27.43
ADVISORY NUMBER: 3


NEXT ADVISORY TIME (e.g. SEP 16 2021, 1800 UTC)JUN 3 2021, 1800 UTC.

Please allow time for floater to build.

• STORM FLOATER •

  W ()
PUBLIC ADVISORY #
FORCE THIRTEEN , 

    
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SUMMARY OF INFORMATION
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LOCATION...NEAR    ...
MAXIMUM SUSTAINED WINDS...MPH...KM/H
MINIMUM CENTRAL PRESSURE...MB
    
WATCHES AND WARNINGS
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DISCUSSION
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TS CHOI-WAN IS LOCATED AT 18.5N, 118.2E. INFORMATION ON THE
  CURRENT POSITION IS BASED ON ANIMATED MSI AND SURFACE
  OBSERVATIONS. POSITIONAL ACCURACY IS FAIR. CENTRAL PRESSURE IS
  1000HPA AND MAXIMUM SUSTAINED WINDS ARE 40KNOTS. THE SYSTEM IS IN
  A NEUTRAL ENVIRONMENT FOR DEVELOPMENT UNDER THE INFLUENCE OF HIGH
  SSTS AND DRY AIR. THIS HAS CAUSED THE SYSTEM TO MAINTAIN ITS
  INTENSITY OVER THE LAST SIX HOURS. INFORMATION ON THE CURRENT
  INTENSITY IS BASED ON DVORAK INTENSITY ANALYSES AND SURFACE
  OBSERVATIONS.

  THE SYSTEM IS MOVING NORTH-NORTHWESTWARD ALONG THE SOUTHWESTERN
  PERIPHERY OF A MID-LEVEL SUB-TROPICAL HIGH. ANIMATED MSI SHOWS CB
  CLUSTERS GATHERING AROUND THE CSC. WATER VAPOR IMAGERY SHOWS DRY
  AIR IN THE DIRECTION OF THE MOVEMENT. DMSP-F15/SSMI 89 GHZ
  MICROWAVE IMAGERY SHOWS THE SYSTEM HAS ACTIVE CONVECTIVE CLOUD
  CLUSTERS AROUND THE CSC.

  THE SYSTEM WILL MOVE NORTH-NORTHEASTWARD ALONG THE PERIPHERY OF A
  MID-LEVEL SUB-TROPICAL HIGH UNTIL FT12. THE SYSTEM WILL THEN MOVE
  NORTHEASTWARD ALONG THE PERIPHERY OF A MID-LEVEL SUB-TROPICAL HIGH
  UNTIL FT24. 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.

  THE SYSTEM WILL GRADUALLY WEAKEN UNTIL FT12 DUE TO THE INFLUENCE
  OF DRY AIR. THE SYSTEM WILL THEN GRADUALLY WEAKEN UNTIL FT24 DUE
  TO THE INFLUENCE OF INTERACTION WITH STRONG VWS AND DRY AIR. THE
  SYSTEM WILL WEAKEN TO TD INTENSITY BY FT24. THE INTENSITY FORECAST
  IS BASED ON A CONSENSUS OF GUIDANCE DATA INCLUDING GSM.
=
LOCAL AND OFFICIAL SOURCES BELOW
Japan Meteorological Agency
    

    
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Forecaster 
• OFFICIAL JTWC FORECAST •

• JAPAN METEOROLOGICAL AGENCY FORECAST •

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