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03UTC: South Indian: 93S likely to develop within 48hours


TCFA issued by the Joint Typhoon Warning Center


https://www.facebook.com/groups/1817419381676514/
As of 00:00 UTC Mar 21, 2019:
Location: 12.6°S 60.6°E
Maximum Winds: 25 kt ( 45km/h)
Minimum Central Pressure: 1004 mb
ABIO10 PGTW 202200
2. SOUTH INDIAN OCEAN AREA (135E WEST TO COAST OF AFRICA):
 B. TROPICAL DISTURBANCE SUMMARY:
      (1) THE AREA OF CONVECTION (INVEST 93S) PREVIOUSLY LOCATED
NEAR 12.6S 61.2E, IS NOW LOCATED NEAR 12.6S 61.2E, APPROXIMATELY 512
NM NORTH-NORTHEAST OF MAURITIUS. ANIMATED ENHANCED INFRARED
SATELLITE IMAGERY, ALONG WITH A 201343Z SSMIS F-18 91GHZ MICROWAVE
IMAGE, SHOWS BUILDING DEEP CONVECTION OVER A CONSOLIDATING LOW LEVEL
CIRCULATION. A 200548Z PARTIAL METOP-B ASCAT PASS SHOWS A SLIGHTLY
ELONGATED LOW LEVEL CIRCULATION WITH 20 TO 25 KNOT WINDS TO THE
NORTH AND SOUTH. 93S IS CURRENTLY IN A FAVORABLE ENVIRONMENT WITH
GOOD POLEWARD AND EQUATORWARD OUTFLOW CHANNELS, WARM (29 TO 30
CELSIUS) SEA SURFACE TEMPERATURES, AND MODERATE (10 TO 20 KNOT)
VERTICAL WIND SHEAR. GLOBAL MODELS ARE IN GOOD AGREEMENT THAT 93S
WILL TRACK SOUTHWARD, RAPIDLY INTENSIFYING TO WARNING CRITERIA
BETWEEN TAU 24 AND 48, BEFORE TURNING SOUTHEASTWARD. MAXIMUM
SUSTAINED SURFACE WINDS ARE ESTIMATED AT 28 TO 33 KNOTS. MINIMUM SEA
LEVEL PRESSURE IS ESTIMATED TO BE NEAR 998 MB. THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS IS HIGH. SEE REF C (WTXS21 PGTW 202130) FOR FURTHER DETAILS.
      (2) NO OTHER SUSPECT AREAS.
3. JUSTIFICATION FOR REISSUE: UPGRADED AREA IN PARA 2.B.(1) TO
HIGH.//
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0147UTC: poorly organized system
0147UTC: poorly organized system


 

00UTC
00UTC



HWRF AT 18UTC: 118KT AT +126H
HWRF AT 18UTC: 118KT AT +126H

GFS AT 18UTC: 98KT AT +120H
GFS AT 18UTC: 98KT AT +120H


Rédigé par PATRICK HOAREAU le Thursday, March 21st 2019 à 07:23