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Western North Pacific: Tropical Cyclone Formation Alert issued for Invest 94W, 20/14utc update



INVEST 94W: ANIMATED ENHANCED SATELLITE  IMAGERY DEPICTS A DISORGANIZED AREA OF FRAGMENTED CONVECTION.
INVEST 94W: ANIMATED ENHANCED SATELLITE IMAGERY DEPICTS A DISORGANIZED AREA OF FRAGMENTED CONVECTION.

 

A PARTIAL 200252Z AMSR2 89GHZ MICROWAVE PASS SHOWS A SHARP EASTERLY WAVE OR A POSSIBLE WEAK LOW LEVEL CIRCULATION (LLC) WITH CYCLING CONVECTION TO THE NORTHEAST. PREVIOUS SCATTEROMETER DATA INDICATES  AN ASYMMETRIC WIND FIELD, WITH LIGHT WINDS IN THE SOUTHERN  SEMICIRCLE AND STRONGER (15-20 KT) WINDS ACROSS THE NORTHEASTERN  QUADRANT IN THE GRADIENT FLOW. INVEST 94W IS IN A FAVORABLE  ENVIRONMENT FOR TROPICAL DEVELOPMENT WITH FAIR EQUATORWARD OUTFLOW,  LOW (5-10 KTS) VERTICAL WIND SHEAR, AND WARM (29-30 CELSIUS) SEA  SURFACE TEMPERATURES.
A PARTIAL 200252Z AMSR2 89GHZ MICROWAVE PASS SHOWS A SHARP EASTERLY WAVE OR A POSSIBLE WEAK LOW LEVEL CIRCULATION (LLC) WITH CYCLING CONVECTION TO THE NORTHEAST. PREVIOUS SCATTEROMETER DATA INDICATES AN ASYMMETRIC WIND FIELD, WITH LIGHT WINDS IN THE SOUTHERN SEMICIRCLE AND STRONGER (15-20 KT) WINDS ACROSS THE NORTHEASTERN QUADRANT IN THE GRADIENT FLOW. INVEST 94W IS IN A FAVORABLE ENVIRONMENT FOR TROPICAL DEVELOPMENT WITH FAIR EQUATORWARD OUTFLOW, LOW (5-10 KTS) VERTICAL WIND SHEAR, AND WARM (29-30 CELSIUS) SEA SURFACE TEMPERATURES.
2021 JUNE 20 1445UTC #WESTERNNORTHPACIFIC
INVEST #94W
TCFA/UPDATE
As of 12:00 UTC June 20, 2021:
Location: 10.4°N 149.0°E
Maximum Winds: 18/23 kt
Minimum Central Pressure: 1005 mb
LOCATED AT 20/12UTC APPROXIMATELY APPROXIMATELY 565 KM SOUTHEAST OF GUAM.
CURRENT POTENTIAL FOR THE NEXT 24HOURS: UP-GRADED TO HIGH
Satellite bulletins are to be found in the comments of this post on JTWC BIS

Cheers,
Patrick Hoareau
JTWC PH
ILES SOEURS

Joint Typhoon Warning Center

NUMERICAL MODELS ARE IN GOOD AGREEMENT THAT  INVEST 94W WILL CONTINUE TO TRACK WEST-NORTHWESTWARD AS IT SLOWLY  CONSOLIDATES OVER THE NEXT 24-36 HOURS.
NUMERICAL MODELS ARE IN GOOD AGREEMENT THAT INVEST 94W WILL CONTINUE TO TRACK WEST-NORTHWESTWARD AS IT SLOWLY CONSOLIDATES OVER THE NEXT 24-36 HOURS.


INVEST 94W IS UP-GRADED TO HIGH: HIGH CHANCES OF DEVELOPING 25KNOT WINDS NEAR ITS CENTER WITHIN THE NEXT 24HOURS. THE JTWC IS ISSUING 3HOURLY SATELLITE BULLETINS ON THIS SYSTEM.
INVEST 94W IS UP-GRADED TO HIGH: HIGH CHANCES OF DEVELOPING 25KNOT WINDS NEAR ITS CENTER WITHIN THE NEXT 24HOURS. THE JTWC IS ISSUING 3HOURLY SATELLITE BULLETINS ON THIS SYSTEM.

20/13UTC. INVEST 94W.
20/13UTC. INVEST 94W.


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Rédigé par PATRICK HOAREAU le Sunday, June 20th 2021 à 19:10