Saturday, November 07, 2009

Threat for Cyclone formation south of Kanyakumari.

JTWC::
THE AREA OF CONVECTION PREVIOUSLY LOCATED NEAR 6.7N 77.5E,
IS NOW LOCATED NEAR 7.1N 78.2E, APPROXIMATELY 100 NM WEST OF
COLOMBO, SRI LANKA. ANIMATED INFRARED IMAGERY SHOWS A BROAD AREA OF
DEEP CONVECTION SLOWLY CONSOLIDATING ABOUT AN ILL-DEFINED LOW LEVEL
CIRCULATION CENTER (LLCC). RECENT SCATTEROMETER PASSES (061322Z
QUIKSCAT, 061534Z ASCAT) INDICATE THE LLCC MAY ACTUALLY BE MORE TO
THE NORTHEAST, IN THE VICINITY OF SRI LANKA. NEVERTHELESS, THE
SYSTEM IS LOCATED JUST SOUTH OF THE SUBTROPICAL RIDGE AXIS IN AN
AREA OF RELATIVELY LOW VERTICAL WIND SHEAR WITH GOOD UPPER-LEVEL
DIFFLUENCE. ADDITIONALLY, THE ENVIRONMENT IS FORECAST TO IMPROVE AS
AN APPROACHING UPPER-LEVEL TROUGH DIGS EASTWARD AND ENHANCES THE
POLEWARD OUTFLOW INTO THE MID-LATITUDE WESTERLIES. MAXIMUM SUSTAINED
SURFACE WINDS ARE ESTIMATED AT 20 TO 25 KNOTS. MINIMUM SEA LEVEL
PRESSURE IS ESTIMATED TO BE NEAR 1006 MB. THE POTENTIAL FOR THE
DEVELOPMENT OF A SIGNIFICANT TROPICAL CYCLONE WITHIN THE NEXT 24
HOURS REMAINS FAIR.

IMD::
DEMS–RSMC TROPICAL CYCLONES NEW DELHI 07-11-2009

TROPICAL WEATHER OUTLOOK FOR NORTH INDIAN OCEAN (THE BAY OF BENGAL AND ARABIAN SEA) VALID FOR NEXT 24 HOURS ISSUED AT 0600 UTC.

A LOW PRESSURE AREA LIES OVER COMORIN AREA AND NEIGHBOURHOOD. SYSTEM LIKELY TO BECOME MORE MARKED.

ONVECTIVE CLOUDS ARE SEEN OVER PARTS OF SOUTHWEST BAY OF BENGAL, COMORIN AREA AND SOUTHEAST ARABIAN SEA.

RIDGE LINE AT 200 hPa PASSES ALONG LATITUDE 11.0O N OVER INDIAN REGION

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