WWIN40 DEMS 130858

IWB (MORNING) DATED 13-09-2020

* THE LOW PRESSURE AREA OVER WESTCENTRAL BAY OF BENGAL OFF NORTH
ANDHRA PRADESH COAST PERSISTS. ASSOCIATED CYCLONIC CIRCULATION
EXTENDS UPTO MIDTROPOSPHERIC LEVELS TILTING SOUTHWESTWARDS WITH
HEIGHT. IT IS LIKELY TO BECOME MORE MARKED. ? THE MONSOON TROUGH AT
MEAN SEA LEVEL NOW PASSES THROUGH BIKANER, SIKAR, SHIVPURI,
TIKAMGARH, MANDLA TO THE CENTRE OF LOW PRESSURE AREA OVER WESTCENTRAL
BAY OF BENGAL OFF NORTH ANDHRA PRADESH COAST. * THE CYCLONIC
CIRCULATION OVER EASTCENTRAL ARABIAN SEA OFF MAHARASHTRA COAST NOW
LIES OVER NORTHEAST ARABIAN SEA & ADJOINING SOUTH GUJARAT COAST AND
EXTENDS UPTO 4.5 KM ABOVE MEAN SEA LEVEL. * A TROUGH RUNS FROM
SOUTHWEST UTTAR PRADESH TO THE CYCLONIC CIRCULATION OVER NORTHEAST
ARABIAN SEA & ADJOINING SOUTH GUJARAT COAST ACROSS EAST RAJASTHAN. *
THE OFF-SHORE TROUGH AT MEAN SEA LEVEL FROM NORTH MAHARASHTRA COAST
TO NORTH KERALA COAST NOW RUNS FROM SOUTH GUJARAT COAST TO NORTH
KARNATAKA COAST. ? THE CYCLONIC CIRCULATION OVER SOUTH AFGHANISTAN & NEIGHBOURHOOD BETWEEN 3.1 & 5.8 KM ABOVE MEAN SEA LEVEL PERSISTS. *
THE CYCLONIC CIRCULATION OVER JAMMU & KASHMIR AND NEIGHBOURHOOD
BETWEEN 3.1 & 3.6 KM ABOVE MEAN SEA LEVEL MOVED AWAY NORTHEASTWARDS.
? THE EASTWEST SHEAR ZONE ROUGHLY ALONG 15ON ACROSS PENINSULAR INDIA
AT 5.8 KM ABOVE MEAN SEA LEVEL HAS BECOME LESS MARKED (.)

FORECAST:-
RAIN/THUNDERSHOWER AT MOST PLACES OVER ARUNACHAL PRADESH, ASSAM &
MEGHALAYA, SUB-HIMALAYAN WEST BENGAL & SIKKIM, MAHARASHTRA, COASTAL
ANDHRA PRADESH & YANAM, TELANGANA, RAYALSEEMA, KARNATAKA, KERALA &
MAHE, ANDAMAN & NICOBAR ISLANDS AND LAKSHADWEEP; AT MANY PLACES
OVER BIHAR, NAGALAND, MANIPUR, MIZORAM & TRIPURA AND SAURASHTRA &
KUTCH ; AT A FEW PLACES OVER UTTRAKHAND, EAST UTTAR PRADESH, MADHYA
PRADESH, CHATTISGARH, GANGETIC WEST BENGAL, ODISHA, GUJRAT REGION
AND TAMILNADU, PUDUCHERRY & KARAIKAL AND AT ISOLATED PLACES OVER
HIMACHAL PRADESH, HARYANA, CHANDIGARH & DELHI, WEST UTTAR PRADESH,
RAJASTHAN AND JHARKHAND (. )DRY WEATHER PREVAIL REST OF THE COUNTRY
(.)
WARNING:-
13 SEPTEMBER (DAY 1):
* HEAVY TO VERY HEAVY RAINFALL WITH EXTREMELY HEAVY FALLS VERY LIKELY
AT ISOLATED PLACES OVER COASTAL ANDHRA PRADESH & YANAM; HEAVY TO VERY
HEAVY RAINFALL AT ISOLATED PLACES OVER ARUNACHAL PRADESH, TELANGANA, RAYALASEEMA, COASTAL & SOUTH INTERIOR KARNATAKA, NORTH TAMILNADU AND
KERALA & MAHE AND HEAVY RAINFALL AT ISOLATED PLACES OVER NORTHWEST &
EAST MADHYA PRADESH, VIDARBHA, CHHATTISGARH, BIHAR, SUB-HIMALAYAN
WEST BENGAL & SIKKIM, ODISHA, ASSAM & MEGHALAYA, GUJARAT STATE,
KONKAN & GOA AND NORTH INTERIOR KARNATAKA (.)
* MODERATE THUNDERSTORM ACCOMPANIED WITH LIGHTNING VERY LIKELY AT
ISOLATED PLACES OVER BIHAR AND EAST UTTAR PRADESH AND THUNDERSTORM
ACCOMPANIED WITH LIGHTNING VERY LIKELY AT ISOLATED PLACES OVER SOUTH
RAJASTHAN, MADHYA PRADESH, VIDARBHA, CHHATTISGARH, JHARKHAND, WEST
BENGAL & SIKKIM, ASSAM & MEGHALAYA, GUJARAT STATE, RAYALASEEMA,
TELANGANA, COASTAL KARNATAKA AND TAMILNADU, PUDUCHERRY & KARAIKAL (.)
* STRONG WIND (SPEED REACHING 45-55 KMPH) VERY LIKELY OVER SOUTHWEST
ARABIAN SEA. SQUALLY WEATHER (WIND SPEED REACHING 45-55 KMPH) OVER
NORTHEAST AND EASTCENTRAL & ADJOINING SOUTHEAST ARABIAN SEA; ALONG &
OFF KARNATAKA, KERALA, GUJARAT COASTS AND LAKSHADWEEP AREA AND
WESTCENTRAL BAY OF BENGAL & ADJOINING SOUTHWEST ALONG & OFF NORTH
TAMILNADU & ANDHRA PRADESH COASTS. FISHERMEN ARE ADVISED NOT TO
VENTURE INTO THESE AREAS (.)

14 SEPTEMBER (DAY 2):
* HEAVY TO VERY HEAVY RAINFALL WITH EXTREMELY HEAVY FALLS VERY LIKELY
AT ISOLATED PLACES OVER TELANGANA; HEAVY TO VERY HEAVY RAINFALL AT
ISOLATED PLACES OVER COASTAL ANDHRA PRADESH & YANAM AND HEAVY
RAINFALL AT ISOLATED PLACES OVER NORTHWEST & EAST MADHYA PRADESH,
VIDARBHA, CHHATTISGARH, BIHAR, SUB-HIMALAYAN WEST BENGAL & SIKKIM,
ODISHA, ANDAMAN & NICOBAR ISLANDS, ARUNACHAL PRADESH, ASSAM &
MEGHALAYA, MADHYA MAHARASHTRA, MARATHWADA, KONKAN & GOA, RAYALASEEMA,
COASTAL & NORTH INTERIOR KARNATAKA, TAMILNADU, PUDUCHERRY & KARAIKAL
AND KERALA & MAHE (.)
* MODERATE THUNDERSTORM ACCOMPANIED WITH LIGHTNING VERY LIKELY AT
ISOLATED PLACES OVER BIHAR AND EAST UTTAR PRADESH AND THUNDERSTORM
ACCOMPANIED WITH LIGHTNING VERY LIKELY AT ISOLATED PLACES OVER MADHYA
PRADESH, VIDARBHA, CHHATTISGARH, JHARKHAND, WEST BENGAL & SIKKIM,
ASSAM & MEGHALAYA, GUJARAT STATE, RAYALASEEMA, TELANGANA AND
TAMILNADU, PUDUCHERRY & KARAIKAL (.)
* STRONG WIND (SPEED REACHING 45-55 KMPH) VERY LIKELY OVER SOUTHWEST
ARABIAN SEA. SQUALLY WEATHER (WIND SPEED REACHING 45-55 KMPH) OVER
NORTHEAST, SOUTHEAST ARABIAN SEA; ALONG & OFF KARNATAKA & KERALA
COASTS AND LAKSHADWEEP AREA AND WESTCENTRAL BAY OF BENGAL & ADJOINING
SOUTHWEST ALONG & OFF NORTH TAMILNADU & ANDHRA PRADESH COASTS.
FISHERMEN ARE ADVISED NOT TO VENTURE INTO THESE AREAS (.)=
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