Saturday, September 05, 2009

Potential cyclone "97B"

Potential cyclone off the coast of Orissa.
It was brewing from yesterday afternoon, overnight it has become more strong.

JTWC path forecast:

JTWC warning:
THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 19.5N
87.8E IS NOW LOCATED NEAR 20.4N 87.8E, APPROXIMATELY 125 NM SOUTH-
SOUTHWEST OF KOLKATA, INDIA. RECENT ANIMATED INFRARED SATELLITE
IMAGERY SHOWS DEEP CONVECTION PERSISTING NEAR THE CENTER OF A LOW
LEVEL CIRCULATION CENTER (LLCC) EVIDENT IN RECENT MICROWAVE
SATELLITE IMAGERY. THIS DISTURBANCE IS MOVING INTO AN AREA OF
DECREASING VERTICAL WIND SHEAR AND FAVORABLE POLEWARD AND
EQUATORWARD OUTFLOW ASSOCIATED WITH RIDGING ALOFT. RECENT
OBSERVATIONS FROM REPORTING STATIONS ALONG THE NORTHEASTERN INDIAN
COAST, NEAR THE CENTER OF LOW PRESSURE, INDICATE SURFACE PRESSURES
RANGING FROM 994 TO 996 MB. MAXIMUM SUSTAINED SURFACE WINDS ARE
ESTIMATED AT 27 TO 32 KNOTS. MINIMUM SEA LEVEL PRESSURE IS ESTIMATED
TO BE NEAR 995 MB. BASED ON THE GOOD LOW LEVEL SIGNATURE, LOW
ESTIMATED CENTRAL SURFACE PRESSURE, AND IMPROVING UPPER LEVEL
SUPPORT, THE POTENTIAL FOR THE DEVELOPMENT OF A SIGNIFICANT TROPICAL
CYCLONE WITHIN THE NEXT 24 HOURS IS GOOD.
IMD warning:(issued yesterday evening)
The well marked low pressure area over northwest Bay of Bengal and adjoining coastal areas of Orissa persists and is likely to concentrate into a depression by tomorrow.
Satellite taken at 8:30am IST:

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