WWIN40 DEMS 201200

IWB (EVENING) DATED 20-09-2020



THE LOW PRESSURE AREA OVER NORTHEAST BAY OF BENGAL AND NEIGHBORHOOD
WITH THE ASSOCIATED CYCLONIC CIRCULATION EXTENDING UPTO 7.6 KM ABOVE
MEAN SEA LEVEL TILTING SOUTHWESTWARDS WITH HEIGHT PERSISTS. IT IS
LIKELY TO MOVE WESTNORTHWESTWARDS DURING NEXT 2-3 DAYS AND BECOME
MORE MARKED OVER NORTHWEST BAY OF BENGAL & EIGHBOURHOOD DURING NEXT
24 HOURS. THE WESTERN END OF THE MONSOON TROUGH CONTINUES TO RUN
CLOSE TO THE FOOTHILLS OF THE HIMALAYAS. ITS EASTERN END ALSO
CONTINUES TO PASS THROUGH BAREILLY, ALLAHABAD, DALTONGANJ, PURI AND
THENCE EASTSOUTHEASTWARDS TO THE CENTER OF LOW PRESSURE AREA OVER
NORTHEAST BAY OF BENGAL. THE EASTWEST SHEAR ZONE ROUGHLY ALONG LAT.
16ON ACROSS PENINSULAR INDIA BETWEEN 3.1 KM & 7.6 KM ABOVE MEAN SEA
LEVEL TILTING SOUTHWARDS WITH HEIGHT ACROSS THE CYCLONIC CIRCULATION
ASSOCIATED WITH THE ABOVE LOW PRESSURE AREA PERSISTS.THE WESTERN
DISTURBANCE AS A TROUGH IN MIDTROPOSPHERIC WESTERLIES WITH ITS AXIS
AT 5.8 KM ABOVE MEAN SEA LEVEL ROUGHLY ALONG LONG. 72OE TO THE NORTH
OF LAT. 28ON PERSISTS (.)

FORECAST:-



RAIN/THUNDERSHOWER AT MOST PLACES OVER ARUNACHAL PRADESH, ASSAM &
MEGHALAYA, NAGALAND, MANIPUR, MIZORAM & TRIPURA, SUB-HIMALAYAN WEST
BENGAL & SIKKIM, GANGETIC WEST BENGAL, ODISHA, EAST MADHYA PRADESH,
KONKAN & GOA, MADHYA MAHARASHTRA, MARATHWADA, VIDARBHA, CHHATTISGARH,
COASTAL ANDHRA PRADESH & YANAM, TELANGANA, KARNATAKA STATE, KERALA &
MAHE AND LAKSHADWEEP; AT MANY PLACES OVER ANDAMAN & NICOBAR ISLANDS,
JHARKHAND, WEST MADHYA PRADESH AND RAYALSEEMA; AT A FEW PLACES OVER
BIHAR, GUJRAT REGION, SAURASHTRA AND KUTCH, TAMILNADU, PUDUCHERRY &
KARAIKAL; AT ISOLATED PLACES OVER UTTER PRADESH, UTTRAKHAND, HARYANA, CHANDIGARH & DELHI AND RAJASTHAN (.)

DRY WEATHER OVER REST PARTS OF THE COUNTRY (.)

WARNING:-



20 SEPTEMBER: ( DAY 1 )



HEAVY TO VERY HEAVY RAINFALL AT A FEW PLACES WITH EXTREMELY HEAVY
FALLS AT ISOLATED PLACES VERY LIKELY OVER COASTAL KARNATAKA AND NORTH
KERALA; HEAVY TO VERY HEAVY RAINFALL AT ISOLATED PLACES WITH
EXTREMELY HEAVY FALLS AT ISOLATED PLACES OVER ODISHA, SOUTH INTERIOR
KARNATAKA AND KONKAN & GOA; HEAVY TO VERY HEAVY RAINFALL AT ISOLATED
PLACES OVER COASTAL ANDHRA PRADESH & YANAM, TELANGANA, RAYALASEEMA,
NORTH INTERIOR KARNATAKA AND HEAVY RAINFALL AT ISOLATED PLACES OVER
VIDARBHA, CHHATTISGARH, JHARKHAND, GANGETIC WEST BENGAL, ASSAM &
MEGHALAYA, NAGALAND, MANIPUR, MIZORAM & TRIPURA, GUJARAT REGION,
MADHYA MAHARASHTRA AND MARATHWADA (.)

THUNDERSTORM ACCOMPANIED WITH HAIL/LIGHTNING VERY LIKELY AT ISOLATED
PLACES OVER UTTARAKHAND; THUNDERSQUALL (SPEED 50-60 KMPH) ACCOMPANIED
WITH LIGHTNING LIKELY AT ISOLATED PLACES OVER ANDAMAN & NICOBAR
ISLANDS AND THUNDERSTORM WITH LIGHTNING AT ISOLATED PLACES OVER EAST
UTTAR PRADESH, RAJASTHAN, MADHYA PRADESH, VIDARBHA, CHHATTISGARH,
JHARKHAND, SUB-HIMALAYAN WEST BENGAL & SIKKIM, ARUNACHAL PRADESH,
ASSAM & MEGHALAYA, NAGALAND, MANIPUR, MIZORAM & TRIPURA, MADHYA
MAHARASHTRA, MARATHWADA, TELANGANA, COASTAL ANDHRA PRADESH & YANAM, RAYALASEEMA, INTERIOR KARNATAKA AND TAMILNADU, PUDUCHERRY & KARAIKAL
(.)

STRONG WIND (SPEED REACHING 45-55 KMPH) VERY LIKELY OVER SOUTHWEST &
SOUTHEAST ARABIAN SEA, ALONG & OFF KERALA-KARNATAKA COASTS AND
LAKSHADWEEP AREA; (SPEED REACHING 50-60 KMPH) OVER NORTH, SOUTH &
ADJOINING CENTRAL BAY OF BENGAL. FISHERMEN ARE ADVISED NOT TO VENTURE
INTO THESE AREAS (.)

21 SEPTEMBER: ( DAY 2 )

HEAVY TO VERY HEAVY RAINFALL AT A FEW PLACES WITH EXTREMELY HEAVY
FALLS AT ISOLATED PLACES VERY LIKELY OVER COASTAL KARNATAKA; HEAVY TO
VERY HEAVY RAINFALL AT ISOLATED PLACES WITH EXTREMELY HEAVY FALLS AT
ISOLATED PLACES OVER ODISHA, ASSAM & MEGHALAYA AND KONKAN & GOA;
HEAVY TO VERY HEAVY RAINFALL AT ISOLATED PLACES OVER VIDARBHA,
CHHATTISGARH, GANGETIC WEST BENGAL, ARUNACHAL PRADESH, MADHYA
MAHARASHTRA, SOUTH INTERIOR KARNATAKA AND KERALA & MAHE AND HEAVY
RAINFALL AT ISOLATED PLACES OVER EAST MADHYA PRADESH, JHARKHAND,
SUB-HIMALAYAN WEST BENGAL & SIKKIM, NAGALAND, MANIPUR, MIZORAM &
TRIPURA, GUJARAT REGION, MARATHWADA, COASTAL ANDHRA PRADESH & YANAM,
TELANGANA, NORTH INTERIOR KARNATAKA AND TAMILNADU, PUDUCHERRY &
KARAIKAL (.)

THUNDERSTORM WITH LIGHTNING AT ISOLATED PLACES OVER EAST UTTAR
PRADESH, RAJASTHAN, MADHYA PRADESH, VIDARBHA, CHHATTISGARH, BIHAR, SUB-HIMALAYAN WEST BENGAL & SIKKIM, ARUNACHAL PRADESH, ASSAM &
MEGHALAYA, NAGALAND, MANIPUR, MIZORAM & TRIPURA, MADHYA MAHARASHTRA, MARATHWADA, TELANGANA, COASTAL ANDHRA PRADESH & YANAM, RAYALASEEMA,
INTERIOR KARNATAKA AND TAMILNADU, PUDUCHERRY & KARAIKAL (.)

STRONG WIND (SPEED REACHING 45-55 KMPH) VERY LIKELY OVER SOUTHWEST &
SOUTHEAST ARABIAN SEA, ALONG & OFF KERALA-KARNATAKA COASTS AND
LAKSHADWEEP AREA; (SPEED REACHING 50-60 KMPH) OVER NORTH, SOUTH &
ADJOINING CENTRAL BAY OF BENGAL. FISHERMEN ARE ADVISED NOT TO VENTURE
INTO THESE AREAS (.)=
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