SOUTH INDIAN: Invest 90S is up-graded to High as Ascat revealed stronger winds than anticipated


JTWC ISSUED FINAL WARNING ON 18S(NONAME) AT 05/03UTC. A TCFA IS ISSUED AT 05/06UTC FOR INVEST 90S. 3HOURLY SATELLITE BULLETINS ARE PROVIDED FOR BOTH SYSTEMS.


JTWC ISSUED FINAL WARNING ON 18S(NONAME) AT 05/03UTC. A TCFA IS ISSUED AT 05/06UTC FOR INVEST 90S. 3HOURLY SATELLITE BULLETINS ARE PROVIDED FOR BOTH SYSTEMS.
JTWC ISSUED FINAL WARNING ON 18S(NONAME) AT 05/03UTC. A TCFA IS ISSUED AT 05/06UTC FOR INVEST 90S. 3HOURLY SATELLITE BULLETINS ARE PROVIDED FOR BOTH SYSTEMS.
2021 FEB 05 0555UTC #SOUTHERNHEMISPHERE
INVEST #90S  #SOUTHINDIANOCEAN
UPDATE
As of 06:00 UTC Feb 05, 2021:
Location: 12.6°S 81.4°E
Maximum Winds: 35 kt ( 65km/h)
Gusts: 45 kt ( 85km/h)
Minimum Central Pressure: 1003 mb
LOCATED AT 05/06UTC APPROXIMATELY 1140NM EAST-SOUTHEAST OF DIEGO GARCIA.
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
 Météo974
M974World
Cyclone Class 4
 Cheers,PH.

Joint Typhoon Warning Center

TROPCIAL CYCLONE FORMATION ALERT(TCFA).  A 050334Z ASCAT-B BULLSEYE IMAGE REVEALS A WELL- DEFINED CENTER WITH 30-40 KNOT WINDS.
TROPCIAL CYCLONE FORMATION ALERT(TCFA). A 050334Z ASCAT-B BULLSEYE IMAGE REVEALS A WELL- DEFINED CENTER WITH 30-40 KNOT WINDS.

05/0530UTC.  ANIMATED MULTISPECTRAL  SATELLITE IMAGERY DEPICTS A RAPIDLY-CONSOLIDATING, COMPACT SYSTEM  WITH DEEP CONVECTIVE BANDING WRAPPING INTO THE LOW-LEVEL CIRCULATION  CENTER
05/0530UTC. ANIMATED MULTISPECTRAL SATELLITE IMAGERY DEPICTS A RAPIDLY-CONSOLIDATING, COMPACT SYSTEM WITH DEEP CONVECTIVE BANDING WRAPPING INTO THE LOW-LEVEL CIRCULATION CENTER

UPPER-LEVEL ANALYSIS INDICATES A FAVORABLE ENVIRONMENT  WITH ROBUST EQUATORWARD OUTFLOW, EXPANDING POLEWARD OUTFLOW AND  MODERATE (20 KNOTS) EASTERLY VERTICAL WIND SHEAR. GLOBAL MODELS  INDICATE A SLOW SOUTHWARD TRACK WITH RAPID DEVELOPMENT OVER THE  NEXT TWO DAYS.
UPPER-LEVEL ANALYSIS INDICATES A FAVORABLE ENVIRONMENT WITH ROBUST EQUATORWARD OUTFLOW, EXPANDING POLEWARD OUTFLOW AND MODERATE (20 KNOTS) EASTERLY VERTICAL WIND SHEAR. GLOBAL MODELS INDICATE A SLOW SOUTHWARD TRACK WITH RAPID DEVELOPMENT OVER THE NEXT TWO DAYS.
Rédigé par PATRICK HOAREAU le Vendredi 5 Février 2021 à 10:20