Hot Core but No Hot Towers - This will be a major flooding event
Posted by JAC on 5/19/2010, 6:57 am








TROPICAL CYCLONE (TC) 01B (LAILA), LOCATED APPROXIMATELY 175 NM EAST
OF CHENNAI, INDIA, HAS INCREASED ITS FORWARD MOTION AND TRACKED
WEST-NORTHWESTWARD AT 18 KNOTS OVER THE PAST SIX HOURS. ANIMATED
WATER VAPOR IMAGERY INDICATES CONVECTIVE BANDING AROUND THE LOW LEVEL
CIRCULATION CENTER HAS TIGHTENED. THE CURRENT POSITION IS BASED ON AN
181050Z AMSU-B MICROWAVE IMAGERY AND THE CURRENT INTENSITY IS BASED
ON DVORAK ESTIMATES OF T3.5 FROM PGTW AND T3.0 FROM KNES, AND
SUPPORTED BY NEARBY SHIP OBSERVATIONS. TC 01B IS
TRACKING ALONG THE SOUTHWESTERN PERIPHERY OF THE LOW- TO MID-LEVEL
SUBTROPICAL STEERING RIDGE (STR) AND IS FORECAST TO TRACK
NORTH-WESTWARD THROUGH TAU 24. THE SYSTEM SHOULD THEN RECURVE NORTH TO
NORTHEASTWARD AS THE STR REORIENTS AHEAD OF AN APPROACHING
MID-LATITUDE SHORTWAVE TROUGH EXPECTED TO DEEPEN OVER CENTRAL INDIA
AFTER TAU 36. THE MAJORITY OF THE AVAILABLE MODELS (NOGAPS, GFDN,
EGRR AND ECMWF) ARE IN OVERALL AGREEMENT WITH THIS TRACK. GFS AND
WBAR ARE LEFT OF THE TRACK ENVELOPE. TC LAILA IS FORECAST TO
INTENSIFY UP TO TAU 36 BEFORE IT MAKES LANDFALL SOUTH OF KAKINADA,
THEN GRADUALLY WEAKEN ALONG THE COASTAL AREAS OF INDIA, ALTHOUGH
MAINTAINING TC INTENSITY DUE TO ITS PROXIMITY TO ABUNDANT MOISTURE
FROM THE BAY OF BENGAL. THE SYSTEM WILL FINALLY WEAKEN INTO A
TROPICAL DISTURBANCE BEFORE IT CROSSES INTO BANGLADESH BY TAU 120.
MAXIMUM SIGNIFICANT WAVE HEIGHT AT 181200Z IS 15 FEET.

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92B in the Bay of Bengal - JAC, 5/17/2010, 3:32 pm
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