WWIN40 DEMS 210836
IWB (MORNING) DATED 21-09-2020
*THE LOW PRESSURE AREA OVER NORTHWEST BAY OF BENGAL AND NEIGHBORHOOD
NOW LIES OVER NORTHWEST BAY OF BENGAL AND ADJOINING NORTH COASTAL
ODISHA AND ASSOCIATED CYCLONIC CIRCULATION EXTENDS UPTO 7.6 KM
ABOVE MEAN SEA LEVEL TILTING SOUTHWESTWARDS WITH HEIGHT. IT IS
LIKELY TO MOVE WESTNORTHWESTWARDS DURING NEXT 2-3 DAYS. THE MONSOON
TROUGH AT MEAN SEA LEVEL NOW PASSES THROUGH PHALODI, AJMER, GUNA,
JABALPUR, CHAMPA AND THENCE EAST SOUTHEASTWARDS TO THE CENTER OF LOW
PRESSURE AREA OVER NORTHWEST BAY OF BENGAL AND ADJOINING NORTH
COASTAL ODISHA AND EXTENDS UPTO 0.9 KM ABOVE MEAN SEA LEVEL. *THE
EAST- WEST SHEAR ZONE NOW RUNS ROUGHLY ALONG LAT. 17ON 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. *A CYCLONIC CIRCULATION LIES OVER
NORTH MAHARASHTRA COAST & NEIGHBOURHOOD AND EXTENDS UPTO 0.9 KM ABOVE
MEAN SEA LEVEL. ? THE WESTERN DISTURBANCE AS A TROUGH IN
MIDTROPOSPHERIC WESTERLIES WITH ITS AXIS AT 5.8 KM ABOVE MEAN SEA
LEVEL NOW RUNS ROUGHLY ALONG LONG. 75OE TO THE NORTH OF LAT. 32ON AND
IS MOVING AWAY EASTNORTHEASTWARDS (.)
FORECAST:-

RAIN/THUNDERSHOWER AT MOST PLACES OVER ARUNACHAL PRADESH, ASSAM &
MEGHALAYA, NAGALAND, MANIPUR, MIZORAM & TRIPURA, WEST BENGAL &
SIKKIM, ODISHA, BIHAR, JHARKHAND, MADHYA PRADESH, CHHATTISGARH,
MAHARASHTRA, TELANGANA, KARNATAKA, KERALA & MAHE AND LAKSHADWEEP; AT
MANY PLACES OVER EAST UTTAR PRADESH, COASTAL ANDHRA PRADESH & YANAM, RAYALSEEMA AND ANDAMAN & NICOBAR ISLANDS ; AT A FEW PLACES OVER
UTTRAKHAND, HARYANA, CHANDIGARH & DELHI, WEST UTTAR PRADESH, EAST
RAJASTAN AND GUJARAT; AT ISOLATED PLACES OVER WEST RAJASTHAN AND
TAMILNADU, PUDUCHERRY & KARAIKAL (.) DRY WEATHER OVER REST PARTS OF
THE COUNTRY (.)
WARNING:-

21 SEPTEMBER: ( DAY 1 )
* 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 AND KONKAN & GOA; HEAVY TO VERY HEAVY
RAINFALL AT ISOLATED PLACES OVER EAST MADHYA PRADESH, VIDARBHA,
CHHATTISGARH, SUB-HIMALAYA WEST BENGAL & SIKKIM, ARUNACHAL PRADESH,
ASSAM & MEGHALAYA AND NAGALAND, MANIPUR, MIZORAM & TRIPURA, MADHYA
MAHARASHTRA, INTERIOR KARNATAKA, TAMILNADU, PUDUCHERRY & KARAIKAL AND
KERALA & MAHE AND HEAVY RAINFALL AT ISOLATED PLACES OVER WEST MADHYA
PRADESH, BIHAR, JHARKHAND, GANGETIC WEST BENGAL, GUJARAT STATE,
MARATHWADA, COASTAL ANDHRA PRADESH & YANAM AND TELANGANA (.)
* THUNDERSTORM WITH LIGHTNING AT ISOLATED PLACES VERY LIKELY OVER
UTTAR PRADESH, EAST RAJASTHAN, MADHYA PRADESH, VIDARBHA,
CHHATTISGARH, BIHAR, JHARKHAND, SUB-HIMALAYAN WEST BENGAL & SIKKIM,
ARUNACHAL PRADESH, ASSAM & MEGHALAYA, NAGALAND, MANIPUR, MIZORAM &
TRIPURA, GUJARAT REGION, 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 & CENTRAL ARABIAN SEA, GULF OF MANNAR AND ALONG & OFF
KERALA- KARNATAKA-GOA-MAHARASHTRA COASTS AND LAKSHADWEEP AREA; SOUTH
& ADJOINING CENTRAL & NORTH BAY OF BENGAL AND ALONG & OFF WEST BENGAL
& ODISHA COASTS. WAVE HEIGHT ( 4.5 M) OVER ANDAMAN SEA & COASTAL
ANDHRA PRADESH COASTS. FISHERMEN ARE ADVISED NOT TO VENTURE INTO
THESE AREAS (.)
22 SEPTEMBE; ( DAY2)
*HEAVY TO VERY HEAVY RAINFALL AT A FEW PLACES WITH EXTREMELY HEAVY
FALLS AT ISOLATED PLACES VERY LIKELY OVER SUB-HIMALAYA WEST BENGAL &
SIKKIM AND KONKAN & GOA; HEAVY TO VERY HEAVY RAINFALL AT ISOLATED
PLACES WITH EXTREMELY HEAVY FALLS AT ISOLATED PLACES OVER ASSAM &
MEGHALAYA AND MADHYA MAHARASHTRA; HEAVY TO VERY HEAVY RAINFALL AT
ISOLATED PLACES OVER WEST MADHYA PRADESH, BIHAR, ODISHA, ARUNACHAL
PRADESH, GUJARAT REGION AND COASTAL KARNATAKA AND HEAVY RAINFALL AT
ISOLATED PLACES OVER UTTAR PRADESH, EAST RAJASTHAN, EAST MADHYA
PRADESH, VIDARBHA, CHHATTISGARH, JHARKHAND, GANGETIC WEST BENGAL,
NAGALAND, MANIPUR, MIZORAM & TRIPURA, MARATHWADA, NORTH INTERIOR
KARNATAKA AND KERALA & MAHE (.)
*THUNDERSTORM WITH LIGHTNING AT ISOLATED PLACES VERY LIKELY OVER
HARYANA, CHANDIGARH & DELHI, UTTAR PRADESH, RAJASTHAN, MADHYA
PRADESH, VIDARBHA, CHHATTISGARH, SUB-HIMALAYAN WEST BENGAL & SIKKIM,
ARUNACHAL PRADESH, ASSAM & MEGHALAYA, NAGALAND, MANIPUR, MIZORAM &
TRIPURA, GUJARAT REGION, TELANGANA, COASTAL ANDHRA PRADESH & YANAM
AND INTERIOR KARNATAKA (.)
*STRONG WIND (SPEED REACHING 45-55 KMPH) VERY LIKELY OVER SOUTHWEST,
SOUTHEAST & CENTRAL ARABIAN SEA, GULF OF MANNAR AND ALONG & OFF
KERALA- KARNATAKA-GOA COASTS AND LAKSHADWEEP AREA; (SPEED REACHING
50-60 KMPH) ALONG & OFF MAHARASHTRA COAST AND SOUTH & ADJOINING
CENTRAL BAY OF BENGAL AND ALONG & OFF WEST BENGAL & ODISHA COASTS.
FISHERMEN ARE ADVISED NOT TO VENTURE INTO THESE AREAS (.)=
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