Tropical Storm Champi » Text ProductsJune 26th, 2021 at 20:48 PM

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3 years ago

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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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  STS CHAMPI IS LOCATED AT 28.3N, 140.8E. INFORMATION ON THE CURRENT
  POSITION IS BASED ON ANIMATED MSI AND SURFACE OBSERVATIONS.
  POSITIONAL ACCURACY IS FAIR. CENTRAL PRESSURE IS 992HPA AND
  MAXIMUM SUSTAINED WINDS ARE 50KNOTS. THE SYSTEM IS IN A
  UNFAVORABLE ENVIRONMENT FOR DEVELOPMENT UNDER THE INFLUENCE OF LOW
  SSTS, LOW TCHP AND INCREASED VWS. THIS HAS CAUSED THE SYSTEM TO
  WEAKEN OVER THE LAST SIX HOURS. INFORMATION ON THE CURRENT
  INTENSITY IS BASED ON DVORAK INTENSITY ANALYSES AND SURFACE
  OBSERVATIONS.

  THE SYSTEM IS MOVING NORTH-NORTHEASTWARD ALONG THE NORTHWESTERN
  PERIPHERY OF A MID-LEVEL SUB-TROPICAL HIGH. ANIMATED MSI SHOWS THE
  SEPARATION OF ACTIVE CONVECTIVE CLOUD CLUSTERS FROM THE CSC.

  THE SYSTEM WILL MOVE NORTH-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 WEAKEN UNTIL FT24 DUE TO THE INFLUENCE OF
  INTERACTION WITH LOW SSTS, LOW TCHP AND INCREASED VWS. THE SYSTEM
  WILL TRANSFORM INTO AN EXTRATROPICAL CYCLONE 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