Sunday, December 25, 2011

"92B" - Will it intensify to Depression and approach Tamilnadu coast ??

Position :: 8.9 N and 86.2 E
Wind :: 45 km/Hr
Pressure :: 1003 mb


JTWC warning
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THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 6.7N 87.5E,
IS NOW LOCATED NEAR 7.9N 86.0E, APPROXIMATELY 365 NM EAST OF 
COLOMBO, SRI LANKA. ANIMATED MULTISPECTRAL SATELLITE IMAGERY SHOWS 
LARGE FORMATIVE BANDING MOSTLY TO THE NORTH OF AN ILL-DEFINED LOW 
LEVEL CIRCULATION CENTER. THE MAIN CONVECTION IS BEING DISPLACED TO 
THE NORTH DUE TO MODERATE (15-20 KNOT) SOUTHERLY VERTICAL WIND 
SHEAR. HOWEVER, ANIMATED WATER VAPOR SATELLITE IMAGERY SHOWS GOOD 
POLEWARD OUTFLOW ENHANCED BY THE SUBTROPICAL RIDGE TO THE NORTH.  
MAXIMUM SUSTAINED SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. 
MINIMUM SEA LEVEL PRESSURE IS ESTIMATED TO BE NEAR 1003 MB. THE 
POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE 
WITHIN THE NEXT 24 HOURS REMAINS MEDIUM.


Latest satellite IR shot, 2:30pm
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Rainrate
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COLA Model
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COLA maintains a landfall over Central Tamilnadu coast on 28-Dec as a Depression.


IMD GFS
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Still predicts a S. Tamilnadu landfall as a weak LOW pressure system on 29-Dec.

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