####018006807#### WWIN40 DEMS 131200 IWB (EVENING) DATED 13-05-2025 METEOROLOGICAL ANALYSIS: SOUTHWEST MONSOON HAS ADVANCED INTO SOME PARTS OF SOUTH BAY OF BENGAL, SOUTH ANDAMAN SEA, NICOBAR ISLANDS AND SOME PARTS OF NORTH ANDAMAN SEA TODAY, THE 13 TH MAY, 2025. THE NORTHERN LIMIT OF MONSOON CONTINUES TO PASS THROUGH 5°N/75°E, 5°N/80°E, 6°N/86°E, 8.5°N/90°E, HUT BAY, 13°N/95°E. AND 16°N/98°E. CONDITIONS ARE FAVORABLE FOR FURTHER ADVANCE OF SOUTHWEST MONSOON OVER SOME PARTS OF SOUTH ARABIAN SEA, MALDIVES & COMORIN AREA; SOME MORE PARTS OF SOUTH BAY OF BENGAL, ENTIRE ANDAMAN & NICOBAR ISLANDS, REMAINING PARTS OF ANDAMAN SEA; AND SOME PARTS OF CENTRAL BAY OF BENGAL DURING NEXT 3-4 DAYS. THE WESTERN DISTURBANCE AS A TROUGH ALOFT IN MIDDLE & UPPER TROPOSPHERIC WESTERLIES WITH ITS AXIS AT 5.8 KM ABOVE MEAN SEA LEVEL ROUGHLY ALONG LONG. 73°E TO THE NORTH OF LAT. 32°N PERSISTS. THE TROUGH FROM SAURASHTRA TO EASTCENTRAL ARABIAN SEA ACROSS NORTH EAST ARABIAN SEA BETWEEN 3.1 & 5.8 KM ABOVE MEAN SEA LEVEL PERSISTS. THE UPPER AIR CYCLONIC CIRCULATION OVER UTTARAKHAND & NEIGHBOURHOOD AT 1.5 KM ABOVE MEAN SEA LEVEL PERSISTS. THE UPPER AIR CYCLONIC CIRCULATION OVER EAST UTTAR PRADESH & ADJOINING BIHAR AT 0.9 KM ABOVE MEAN SEA LEVEL PERSISTS. THE TROUGH FROM ABOVE CYCLONIC CIRCULATION OVER EAST UTTAR PRADESH & ADJOINING BIHAR TO SOUTH ODISHA ACROSS CHHATTISGARH AT 0.9 KM ABOVE MEAN SEA LEVEL PERSISTS. THE UPPER AIR CYCLONIC CIRCULATION OVER NORTHEAST ASSAM & NEIGHBOURHOOD EXTENDING UPTO 1.5 KM ABOVE MEAN SEA LEVEL PERSISTS. THE UPPER AIR CYCLONIC CIRCULATION OVER ANDAMAN SEA BETWEEN 1.5 & 7.6 KM ABOVE MEAN SEA LEVEL TILTING SOUTHWESTWARDS WITH HEIGHT PERSISTS. THE TROUGH FROM WEST VIDARBHA TO NORTH KERALA ACROSS MARATHWADA & INTERIOR KARNATAKA AT 1.5 KM ABOVE MEAN SEA LEVEL PERSISTS. RAINFALL FORECAST: AT MOST PLACES OVER ANDAMAN & NICOBAR ISLANDS, ARUNACHAL PRADESH, ASSAM & MEGHALAYA, NAGALAND, MANIPUR, MIZORAM & TRIPURA, SUB-HIMALAYAN WEST BENGAL & SIKKIM, KARNATAKA; AT MANY PLACES OVER COASTAL ANDHRA PRADESH & YANAM, TELANGANA, RAYALASEEMA, KERALA & MAHE, LAKSHADWEEP; AT A FEW PLACES OVER GANGETIC WEST BENGAL, VIDARBHA, CHHATTISGARH, TAMIL NADU, PUDUCHERRY & KARAIKAL; AT ISOLATED PLACES 0VER ODISHA, BIHAR, UTTARAKHAND, HIMACHAL PRADESH, RAJASTHAN, HARYANA-CHANDIGARH-DELHI, WEST UTTAR PRADESH, MADHYA PRADESH, GUJARAT STATE, KONKAN & GOA, MADHYA MAHARASHTRA, MARATHWADA; DRY WEATHER OVER REST PARTS OF THE COUNTRY. WEATHER WARNINGS: 13 TH MAY (DAY 1) HEAVY TO VERY HEAVY RAINFALL WITH ISOLATED EXTREMELY HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER ASSAM & MEGHALAYA. HEAVY TO VERY HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER ANDAMAN & NICOBAR ISLANDS, ARUNACHAL PRADESH, NAGALAND, MANIPUR, MIZORAM AND TRIPURA AND SUB HIMALAYAN WEST BENGAL & SIKKIM. HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER ANDHRA PRADESH, COSTAL KARNATAKA, INTERIOR KARNATAKA, KERALA AND MAHE, MADHYA MAHARASHTRA AND TAMILNADU & PUDUCHERRY. THUNDERSTORM ACCOMPANIED WITH HAILSTORM VERY LIKELY AT ISOLATED PLACES OVER TELANGANA. THUNDERSQUALL WITH WIND SPEED REACHING(50-60KMPH) VERY LIKELY AT ISOLATED PLACES OVER ANDHRA PRADESH, ASSAM & MEGHALAYA, INTERIOR KARNATAKA, MADHYA MAHARASHTRA, MARATHWADA AND TELANGANA. THUNDERSTORM ACCOMPANIED WITH LIGHTNING & GUSTY WINDS(40-50KMPH) VERY LIKELY AT ISOLATED PLACES OVER CHHATTISGARH, GUJARAT, KERALA AND MAHE, KONKAN & GOA, NAGALAND, MANIPUR, MIZORAM AND TRIPURA, ODISHA, RAJASTHAN, TAMILNADU & PUDUCHERRY, VIDARBHA AND WEST BENGAL & SIKKIM. THUNDERSTORM ACCOMPANIED WITH LIGHTNING & GUSTY WINDS(30-40KMPH) VERY LIKELY AT ISOLATED PLACES OVER BIHAR, JAMMU AND KASHMIR AND LADAKH, HARYANA-CHANDIGARH- DELHI, WEST UTTAR PRADESH AND WEST MADHYA PRADESH. THUNDERSTORM ACCOMPANIED WITH LIGHTNING VERY LIKELY AT ISOLATED PLACES OVER ARUNACHAL PRADESH, COSTAL KARNATAKA AND LAKSHADWEEP.  DUST STORM VERY LIKELY AT ISOLATED PLACES OVER WEST RAJASTHAN.  HOT AND HUMID WEATHER VERY LIKELY AT ISOLATED PLACES OVER GANGETIC WEST BENGAL, JHARKHAND, ODISHA AND TAMILNADU & PUDUCHERRY. SQUALLY WIND WITH SPEED 45 KMPH TO 50 KMPH GUSTING TO 55 KMPH VERY LIKELY TO PREVAIL ALONG AND OFF SOMALIA COAST, OVER GULF OF MANNAR; ADJOINING COMORIN AREA, ALONG AND OFF SOUTH SRI LANKA COAST; ADJOINING SOUTHWEST BAY OF BENGAL; SQUALLY WEATHER WITH WIND SPEED 35 KMPH TO 45 KMPH GUSTING TO 55 KMPH PREVAILING OVER ANDAMAN SEA; ADJOINING PARTS OF SOUTHEAST BAY OF BENGAL. FISHERMEN ARE ADVISED NOT TO VENTURE INTO THESE AREAS. 14 TH MAY (DAY 2) HEAVY TO VERY HEAVY RAINFALL WITH ISOLATED EXTREMELY HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER ASSAM & MEGHALAYA. HEAVY TO VERY HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER ARUNACHAL PRADESH. HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER ANDAMAN & NICOBAR ISLANDS, ANDHRA PRADESH, COSTAL KARNATAKA, INTERIOR KARNATAKA, KERALA AND MAHE, NAGALAND, MANIPUR, MIZORAM AND TRIPURA, SUB HIMALAYAN WEST BENGAL & SIKKIM AND TAMILNADU & PUDUCHERRY. THUNDERSTORM ACCOMPANIED WITH HAILSTORM VERY LIKELY AT ISOLATED PLACES OVER TELANGANA. THUNDERSQUALL WITH WIND SPEED REACHING(50-60KMPH) VERY LIKELY AT ISOLATED PLACES OVER CHHATTISGARH, COASTAL ANDHRA PRADESH, MAHARASHTRA AND TELANGANA.  THUNDERSTORM ACCOMPANIED WITH LIGHTNING & GUSTY WINDS(40-50KMPH) VERY LIKELY AT ISOLATED PLACES OVER ASSAM & MEGHALAYA, EAST RAJASTHAN, INTERIOR KARNATAKA, KERALA AND MAHE, KONKAN & GOA, NAGALAND, MANIPUR, MIZORAM AND TRIPURA, ODISHA, RAYALASEEMA, TAMILNADU & PUDUCHERRY AND WEST MADHYA PRADESH. THUNDERSTORM ACCOMPANIED WITH LIGHTNING & GUSTY WINDS(30-40KMPH) VERY LIKELY AT ISOLATED PLACES OVER BIHAR, EAST MADHYA PRADESH, GUJARAT AND WEST BENGAL & SIKKIM. THUNDERSTORM ACCOMPANIED WITH LIGHTNING VERY LIKELY AT ISOLATED PLACES OVER ARUNACHAL PRADESH AND COSTAL KARNATAKA.  HEAT WAVE CONDITIONS VERY LIKELY AT ISOLATED PLACES OVER EAST UTTAR PRADESH, GANGETIC WEST BENGAL AND JHARKHAND. HOT AND HUMID WEATHER VERY LIKELY AT ISOLATED PLACES OVER BIHAR, ODISHA AND TAMILNADU & PUDUCHERRY. SQUALLY WIND WITH SPEED 45 KMPH TO 50 KMPH GUSTING TO 55 KMPH VERY LIKELY TO PREVAIL ALONG AND OFF SOMALIA COAST, OVER GULF OF MANNAR; ADJOINING COMORIN AREA, ALONG AND OFF SOUTH SRI LANKA COAST; ADJOINING SOUTHWEST BAY OF BENGAL. SQUALLY WEATHER WITH WIND SPEED 35 KMPH TO 45 KMPH GUSTING TO 55 KMPH PREVAILING OVER ANDAMAN SEA; ADJOINING PARTS OF SOUTHEAST BAY OF BENGAL. FISHERMEN ARE ADVISED NOT TO VENTURE INTO THESE AREAS.