WWIN40 DEMS 270600

IWB (MORNING) DATED 27-10-2020



THE WITHDRAWAL LINE OF THE SOUTHWEST MONSOON CONTINUE TO PASS
THROUGH LAT. 27ON/LONG.90OE, COOCH BEHAR, SRINIKETAN, GHATSHILA,
KEONJHARGARH, NOWRANGPUR, ELLURU, NALGONDA, NANDED, NASIK, DAHANU,
LAT.20ON/LONG.65OE AND LAT.20ON/LONG.60OE. CONDITIONS ARE BECOMING
FAVORABLE FOR WITHDRAWAL OF SOUTHWEST MONSOON FROM ENTIRE COUNTRY
AND FOR COMMENCEMENT OF NORTHEAST MONSOON RAINS OVER PARTS OF
EXTREME SOUTH PENINSULA BY TOMORROW, THE 28TH OCTOBER, 2020. THE
CYCLONIC CIRCULATION OVER SOUTHEAST & ADJOINING CENTRAL BAY OF
BENGAL NOW LIES OVER CENTRAL & ADJOINING SOUTHEAST BAY OF BENGAL
AND EXTENDS UPTO 1.5 KM ABOVE MEAN SEA LEVEL. THE TROUGH IN
WESTERLIES NOW RUNS ROUGHLY ALONG LONG. 89OE TO THE NORTH OF
LAT. 25ON AT 3.1 KM ABOVE MEAN SEA LEVEL. THE WESTERN DISTURBANCE
AS A TROUGH IN MID TROPOSPHERIC WESTERLIES WITH ITS AXIS AT 5.8 KM
ABOVE MEAN SEA LEVEL ROUGHLY ALONG LONG. 75OE TO THE NORTH OF
LAT. 30ON HAS MOVED AWAY EASTNORTHEASTWARDS. A FRESH WESTERN
DISTURBANCE AS A TROUGH IN MID TROPOSPHERIC WESTERLIES WITH ITS
AXIS AT 5.8 KM ABOVE MEAN SEA LEVEL RUNS ROUGHLY ALONG LONG. 54OE
TO THE NORTH OF LAT. 32ON. A CYCLONIC CIRCULATION LIES OVER
SOUTHWEST BAY OF BENGAL OFF NORTH TAMILNADU COAST BETWEEN 3.1 KM
& 5.8 KM ABOVE MEAN SEA LEVEL. THE CYCLONIC CIRCULATION OVER
SOUTHWEST ARABIAN SEA EXTENDING UPTO 3.1 KM ABOVE MEAN SEA LEVEL
PERSISTS. THE CYCLONIC CIRCULATION OVER EASTCENTRAL ARABIAN SEA
PERSISTS AND NOW EXTENDS UPTO 0.9 KM ABOVE MEAN SEA LEVEL. THE
TROUGH FROM THE CYCLONIC CIRCULATION OVER SOUTHEAST & ADJOINING
CENTRAL BAY OF BENGAL TO SOUTH TAMILNADU HAS BECOME LESS MARKED.
THE CYCLONIC CIRCULATION OVER WEST ASSAM & NEIGHBOURHOOD EXTENDING
UPTO 1.5 KM ABOVE MEAN SEA LEVEL HAS BECOME LESS MARKED (.)


FORECAST:-



RAIN/THUNDERSHOWER AT MANY PLACES OVER ANDAMAN & NICOBAR ISLANDS
AND KERALA & MAHE; AT A FEW PLACES OVER TAMILNADU, PUDUCHERRY &
KARAIKAL AND LAKSHADWEEP AND AT ISOLATED PLACES OVER ARUNACHAL
PRADESH, ASSAM & MEGHALAYA, NAGALAND, MANIPUR, MIZORAM & TRIPURA,
MADHYA MAHARASHTRA, KONKAN & GOA, COASTAL ANDHRA PRADESH & YANAM
AND KARNATAKA (.)



DRY WEATHER PREVAIL OVER REST PARTS OF THE COUNTRY (.)



WARNING:


27 OCTOBER (DAY 1):

HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER KERALA & MAHE (.)


THUNDERSTORM WITH LIGHTNING VERY LIKELY AT ISOLATED PLACES OVER GOA,
KERALA & MAHE AND TAMILNADU, PUDUCHERRY & KARAIKAL (.)



28 OCTOBER (DAY 2):

HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER KERALA & MAHE
AND TAMILNADU, PUDUCHERRY & KARAIKAL (.) THUNDERSTORM WITH LIGHTNING
VERY LIKELY AT ISOLATED PLACES OVER KERALA & MAHE AND TAMILNADU,
PUDUCHERRY & KARAIKAL (.)=
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