Monday, June 13, 2011

"01A" - Dead? or Dying?

The "01A" depression is Now a Low pressure system and will dissipate over S,S-W Gujarat in another 24 hrs. And may re-generate in another 48 hrs.


JTWC
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120900Z POSITION NEAR 20.8N 70.3E.
TROPICAL CYCLONE (TC) 01A (ONE), LOCATED APPROXIMATELY 315 NM 
SOUTHEAST OF KARACHI, PAKISTAN, HAS TRACKED NORTHWESTWARD AT 
06 KNOTS OVER THE PAST SIX HOURS. ANIMATED INFRARED SATELLITE 
IMAGERY SHOWS CONVECTIVE TOPS ASSOCIATED WITH THE SYSTEM HAS
WARMED AS FEEDER BANDS BEGAN TO FALL APART. THE INITIAL POSITION
AND INTENSITY ARE EXTRAPOLATED FROM NEARBY SHIP OBSERVATIONS AND 
FROM A 120148Z WINDSAT SCATTEROMETRY GRAPHIC. MICROWAVE SATELLITE 
IMAGES INCLUDING A 120502Z AMSU-B PASS SHOW DECREASED REFLECTIVITY 
VALUES INDICATING REDUCED INTENSITY. UPPER LEVEL ANALYSIS REVEALS 
EASTERLY VERTICAL WIND SHEAR HAS INCREASED TO 15-20 KNOTS AS THE 
RIDGE TO THE NORTH REORIENTED. THE LOW LEVEL CIRCULATION CENTER HAS 
BEGUN TO DRAG ALONG THE COAST OF THE GUJARAT PENINSULA. IN VIEW OF 
THE UNFAVORABLE CONDITIONS ABOVE, TC 01A IS EXPECTED TO RAPIDLY 
WEAKEN AND DISSIPATE BY TAU 12. THE AVAILABLE NUMERICAL GUIDANCE ARE 
IN FAIR AGREEMENT UP TO TAU 12 WITH THE EXCEPTION OF WBAR WHICH 
CONTINUES TO TRACK THE VORTEX WESTWARD. THIS TRACK FORECAST IS 
ALONGSIDE BUT SLOWER THAN CONSENSUS. THIS IS THE FINAL WARNING ON 
THIS SYSTEM BY THE JOINT TYPHOON WARNING CENTER. THE SYSTEM WILL BE 
CLOSELY MONITORED FOR SIGNS OF REGENERATION
Latest 11:32am, visible satellite shot shows Heavy showers over S-W Gujarat and showers approaching Kutch region as well.

COLA model suggests that very little chance of re-generation in next 48 hrs.

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