WWIN40 DEMS 121200
IWB (EVENING) DATED 12-09-2020



THE MONSOON TROUGH AT MEAN SEA LEVEL NOW PASSES THROUGH PHALODI,
KOTA, SHIVPURI, DAMOH, DALTONGANJ, BALASORE AND THENCE TO NORTHEAST
BAY OF BENGAL.THE OFF-SHORE TROUGH AT MEAN SEA LEVEL FROM NORTH
MAHARASHTRA COAST TO NORTH KERALA COAST PERSISTS.THE CYCLONIC
CIRCULATION OVER EASTCENTRAL ARABIAN SEA OFF MAHARASHTRA COAST
EXTENDING UPTO 3.1 KM ABOVE MEAN SEA LEVEL TILTING SOUTHWESTWARDS
WITH HEIGHT PERSISTS.THE EAST-WEST SHEAR ZONE ROUGHLY ALONG 15ON
ACROSS PENINSULAR INDIA AT 5.8 KM ABOVE MEAN SEA LEVEL PERSISTS.THE
CYCLONIC CIRCULATION OVER SOUTH AFGHANISTAN & NEIGHBOURHOOD BETWEEN
3.1 & 5.8 KM ABOVE MEAN SEA LEVEL PERSISTS.THE CYCLONIC CIRCULATION
OVER WEST-CENTRAL BAY OF BENGAL OFF ANDHRA PRADESH COAST EXTENDING
UPTO 3.1 KM ABOVE MEAN SEA LEVEL PERSISTS. UNDER ITS INFLUENCE, A LOW
PRESSURE AREA IS LIKELY TO FORM OVER WESTCENTRAL BAY OF BENGAL OFF
ANDHRA PRADESH COAST BY TOMORROW.THE CYCLONIC CIRCULATION OVER JAMMU
& KASHMIR AND NEIGHBOURHOOD BETWEEN 3.1 & 3.6 KM ABOVE MEAN SEA LEVEL
PERSISTS (.)

FORECAST:-

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

DRY WEATHER PREVAIL REST OF THE COUNTRY (.)

WARNING:-

12 SEPTEMBER (DAY 1): HEAVY TO VERY HEAVY RAINFALL VERY LIKELY AT
ISOLATED PLACES OVER SAURASHTRA & KUTCH, KONKAN & GOA, COASTAL ANDHRA
PRADESH & YANAM AND KERALA & MAHE; HEAVY RAINFALL AT ISOLATED PLACES
OVER SOUTHWEST MADHYA PRADESH, VIDARBHA, SOUTH CHHATTISGARH, BIHAR, SUB-HIMALAYAN WEST BENGAL & SIKKIM, ODISHA, ARUNACHAL PRADESH, ASSAM
& MEGHALAYA, GUJARAT REGION, MADHYA MAHARASHTRA, TELANGANA,
RAYALSEEMA, KARNATAKA AND TAMILNADU, PUDUCHERRY & KARAIKAL.

THUNDERSTORM ACCOMPANIED WITH LIGHTNING VERY LIKELY AT ISOLATED
PLACES OVER SOUTH UTTAR PRADESH, GUJARAT STATE, SOUTH RAJASTHAN,
MADHYA PRADESH, VIDARBHA, CHHATTISGARH, BIHAR, JHARKHAND, GANGETIC
WEST BENGAL, ODISHA, ARUNACHAL PRADESH, ASSAM & MEGHALAYA, NAGALAND,
MANIPUR, MIZORAM & TRIPURA, MADHYA MAHARASHTRA, MARATHWADA, KONKAN &
GOA, COASTAL ANDHRA PRADESH & YANAM, TELANGANA, RAYALASEEMA, COASTAL
& NORTH INTERIOR 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 ARABIAN SEA; ALONG & OFF MAHARASHTRA-SOUTH
GUJARAT COASTS; SOUTHWEST AND WESTCENTRAL BAY OF BENGAL & ALONG &
OFF ANDHRA PRADESH COAST; AND (WIND SPEED REACHING 40-50 KMPH) ALONG
& OFF KERALA-KARNATAKA COASTS AND LAKSHADWEEP AREA. FISHERMEN ARE
ADVISED NOT TO VENTURE INTO THESE AREAS (.)

13 SEPTEMBER (DAY 2): HEAVY TO VERY HEAVY RAINFALL VERY LIKELY AT
ISOLATED PLACES OVER ODISHA, KONKAN & GOA, COASTAL ANDHRA PRADESH &
YANAM, TELANGANA, SOUTH INTERIOR KARNATAKA AND KERALA & MAHE; HEAVY
RAINFALL AT ISOLATED PLACES OVER SOUTH MADHYA PRADESH, VIDARBHA,
CHHATTISGARH, BIHAR, SUB-HIMALAYAN WEST BENGAL & SIKKIM, ARUNACHAL
PRADESH, ASSAM & MEGHALAYA, GUJARAT STATE, MADHYA MAHARASHTRA,
RAYALASEEMA AND COASTAL & NORTH INTERIOR KARNATAKA.

MODERATE THUNDERSTORM ACCOMPANIED WITH LIGHTNING VERY LIKELY AT
ISOLATED PLACES OVER EAST UTTAR PRADESH AND THUNDERSTORM ACCOMPANIED
WITH LIGHTNING VERY LIKELY AT ISOLATED PLACES OVER MADHYA PRADESH,
VIDARBHA, CHHATTISGARH, BIHAR, JHARKHAND, GANGETIC WEST BENGAL, ASSAM
& MEGHALAYA, COASTAL ANDHRA PRADESH & YANAM, TELANGANA, RAYALASEEMA,
COASTAL & NORTH INTERIOR 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 ARABIAN SEA; ALONG & OFF MAHARASHTRA COAST; WESTCENTRAL BAY OF BENGAL & ALONG & OFF ANDHRA PRADESH COAST; AND
(WIND SPEED REACHING 40-50 KMPH) ALONG & OFF KERALA-KARNATAKA COASTS
AND LAKSHADWEEP AREA. FISHERMEN ARE ADVISED NOT TO VENTURE INTO THESE
AREAS (.)=
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WWIN40 DEMS 190300
THE WESTERN END OF THE MONSOON TROUGH CONTINUES TO RUN CLOSE TO THE
FOOTHILLS OF THE HIMALAYAS. THE EASTERN END OF IT NOW PASSES THROUGH
BAREILLY, ALLAHABAD, AMBIKAPUR, JHARSUGUDA, CHANDBALI AND THENCE
SOUTHEASTWARDS TO EASTCENTRAL BAY OF BENGAL.\U2666 THE EAST-WEST
SHEAR ZONE ROUGHLY ALONG LAT. 16ON ACROSS PENINSULAR INDIA PERSISTS
AND NOW SEEN BETWEEN 3.1 KM & 7.6 KM ABOVE MEAN SEA LEVEL TILTING
SOUTHWARDS WITH HEIGHT.\U2666 THE CYCLONIC CIRCULATION OVER SOUTHWEST
BAY OF BENGAL OFF NORTH TAMILNADU COAST AT 7.6 KM ABOVE MEAN SEA
LEVEL HAS MERGED WITH THE EAST-WEST SHEAR ZONE.\U2666 THE CYCLONIC
CIRCULATION OVER WESTCENTRAL BAY OF BENGAL OFF NORTH ANDHRA
PRADESH-SOUTH ODISHA COASTS NOW LIES OVER NORTH COASTAL ANDHRA
PRADESH & NEIGHBOURHOOD AND EXTENDS UPTO 0.9 KM ABOVE MEAN SEA
LEVEL.\U2666 THE NORTH-SOUTH TROUGH FROM BIHAR TO SOUTH INTERIOR
ODISHA ACROSS JHARKHAND IS NOW SEEN AS A CYCLONIC CIRCULATION
EXTENDING UPTO 2.1 KM ABOVE MEAN SEA LEVEL OVER NORTH INTERIOR ODISHA
& NEIGHBOURHOOD.\U2666 THE WESTERN DISTURBANCE AS A TROUGH IN
MID-TROPOSPHERIC WESTERLIES WITH ITS AXIS AT 5.8 KM ABOVE MEAN SEA
LEVEL NOW RUNS ROUGHLY ALONG LONG. 68OE TO THE NORTH OF LAT.
32ON.\U2666 A LOW PRESSURE AREA IS LIKELY TO DEVELOP OVER NORTHEAST
BAY OF BENGAL & NEIGHBOURHOOD BY TOMORROW, THE 20TH SEPTEMBER 2020.
IT IS LIKELY TO BECOME MORE MARKED OVER NORTHWEST BAY OF BENGAL &
NEIGHBOURHOOD DURING SUBSEQUENT 24 HOURS.\U2666 THE CYCLONIC
CIRCULATION OVER TELANGANA & ADJOINING VIDARBHA EXTENDING UPTO 0.9 KM
ABOVE MEAN SEA LEVEL HAS BECOME LESS MARKED.\U2666 THE CYCLONIC
CIRCULATION OVER SUB-HIMALAYAN WEST BENGAL & NEIGHBOURHOOD BETWEEN
4.5 KM & 7.6 KM ABOVE MEAN SEA LEVEL HAS BECOME LESS MARKED (.)

FORECAST:-

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

DRY WEATHER OVER REST PARTS OF THE COUNTRY (.)

WARNING:-

19 SEPTEMBER (DAY 1):-

HEAVY TO VERY HEAVY RAINFALL AT A FEW PLACES WITH EXTREMELY HEAVY
FALLS AT ISOLATED PLACES VERY LIKELY OVER KERALA & MAHE; HEAVY TO
VERY HEAVY RAINFALL AT ISOLATED PLACES WITH EXTREMELY HEAVY FALLS AT
ISOLATED PLACES OVER COASTAL & SOUTH INTERIOR KARNATAKA; HEAVY TO
VERY HEAVY RAINFALL AT ISOLATED PLACES OVER ANDAMAN & NICOBAR
ISLANDS, KONKAN & GOA, COASTAL ANDHRA PRADESH & YANAM AND RAYALASEEMA
AND HEAVY RAINFALL AT ISOLATED PLACES OVER SOUTH CHHATTISGARH,
ODISHA, MADHYA MAHARASHTRA, MARATHWADA, TELANGANA, NORTH INTERIOR
KARNATAKA AND TAMILNADU, PUDUCHERRY & KARAIKAL.

THUNDERSQUALL (SPEED 50-60 KMPH) ACCOMPANIED WITH LIGHTNING VERY
LIKELY AT ISOLATED PLACES OVER ANDAMAN & NICOBAR ISLANDS;
THUNDERSTORM WITH LIGHTNING & HAIL AT ISOLATED PLACES OVER UTTARKHAND
AND THUNDERSTORM WITH LIGHTNING AT ISOLATED PLACES OVER EAST UTTAR
PRADESH, SOUTHEAST RAJASTHAN, MADHYA PRADESH, VIDARBHA, CHHATTISGARH, JHARKHAND, GANGETIC WEST BENGAL, ODISHA, 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
ARABIAN SEA, ALONG & OFF KERALA-KARNATAKA COASTS AND LAKSHADWEEP
AREA, GULF OF MANNAR, SOUTH & ADJOINING CENTRAL BAY OF BENGAL AND
ANDAMAN SEA. SQUALLY WEATHER (SPEED REACHING 45-55 KMPH) OVER
EASTCENTRAL ARABIAN SEA ALONG & OFF SOUTH MAHARASHTRA-GOA COASTS.
FISHERMEN ARE ADVISED NOT TO VENTURE INTO THESE AREAS (.)

20 SEPTEMBER (DAY 2):-

HEAVY TO VERY HEAVY RAINFALL AT A FEW PLACES WITH EXTREMELY HEAVY
FALLS AT ISOLATED PLACES VERY LIKELY OVER COASTAL KARNATAKA AND
KERALA & MAHE; HEAVY TO VERY HEAVY RAINFALL AT ISOLATED PLACES WITH
EXTREMELY HEAVY FALLS AT ISOLATED PLACES OVER SOUTH INTERIOR
KARNATAKA; HEAVY TO VERY HEAVY RAINFALLAT ISOLATED PLACES OVER
ODISHA, KONKAN & GOA, COASTAL ANDHRA PRADESH & YANAM, TELANGANA AND
TAMILNADU, PUDUCHERRY & KARAIKAL AND HEAVY RAINFALL AT ISOLATED
PLACES OVER ANDAMAN & NICOBAR ISLANDS, SOUTH CHHATTISGARH, JHARKHAND,
GANGETIC WEST BENGAL, TRIPURA, MADHYA MAHARASHTRA, MARATHWADA,
RAYALASEEMA AND NORTH INTERIOR KARNATAKA.

THUNDERSQUALL (SPEED 50-60 KMPH) ACCOMPANIED WITH LIGHTNING VERY
LIKELY AT ISOLATED PLACES OVER ANDAMAN & NICOBAR ISLANDS AND
THUNDERSTORM WITH LIGHTNING AT ISOLATED PLACES OVER UTTARAKHAND, EAST
UTTAR PRADESH, SOUTHEAST RAJASTHAN, MADHYA PRADESH, VIDARBHA,
CHHATTISGARH, BIHAR, JHARKHAND, GANGETIC WEST BENGAL, 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
ARABIAN SEA, ALONG & OFF KERALA-KARNATAKA COASTS AND LAKSHADWEEP
AREA, SOUTH & ADJOINING CENTRAL BAY OF BENGAL ALONG & OFF WEST
BENGAL-ODISHA COASTS AND ANDAMAN SEA. SQUALLY WEATHER (SPEED REACHING
45-55 KMPH) OVER EASTCENTRAL ARABIAN SEA ALONG & OFF SOUTH
MAHARASHTRA-GOA COASTS. FISHERMEN ARE ADVISED NOT TO VENTURE INTO
THESE AREAS (.)

.=
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* Origin: capitolcityonline.net * Telnet/SSH:2022/HTTP (21:1/175)