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WWIN40 DEMS 170300

IWB (MORNING) DATED 17-05-2025



METEOROLOGICAL ANALYSIS:

 SOUTHWEST MONSOON FURTHER ADVANCED OVER SOME MORE PARTS OF SOUTH

ARABIAN SEA, MALDIVES &

COMORIN AREA; SOUTH BAY OF BENGAL, REMAINING PARTS OF ANDAMAN ISLANDS

AND ANDAMAN SEA; AND SOME

PARTS OF EASTCENTRAL BAY OF BENGAL TODAY, THE 17TH MAY 2025.

 THE NORTHERN LIMIT OF MONSOON PASSES THROUGH 5ON/65OE, 6ON/70OE,

6.5ON/75OE, 7ON/80OE, 9ON/85OE,

12ON/90OE, 15ON/93OE AND 19ON/97OE.

 CONDITIONS ARE FAVORABLE FOR FURTHER ADVANCE OF SOUTHWEST MONSOON

OVER SOME MORE PARTS OF

SOUTH ARABIAN SEA, MALDIVES & COMORIN AREA; SOME MORE PARTS OF SOUTH

BAY OF BENGAL; SOME MORE

PARTS OF CENTRAL BAY OF BENGAL, AND SOME PARTS OF NORTHEAST BAY OF

BENGAL DURING NEXT 3-4 DAYS.

 AN UPPER AIR CYCLONIC CIRCULATION IS LIKELY TO FORM OVER EASTCENTRAL

ARABIAN SEA OFF KARNATAKA COAST

AROUND 21ST MAY. UNDER ITS INFLUENCE, A LOW-PRESSURE AREA IS LIKELY

TO FORM OVER THE SAME REGION

AROUND 22ND MAY. THEREAFTER, IT IS LIKELY TO MOVE NORTHWARDS AND

INTENSIFY FURTHER.

 A WESTERN DISTURBANCE IS SEEN AS A TROUGH IN MIDDLE TROPOSPHERIC

WESTERLIES WITH ITS AXIS AT 3.1 KM

ABOVE MEAN SEA LEVEL RUNS ROUGHLY ALONG LONG. 55OE TO THE NORTH OF

LAT. 32ON.

 AN UPPER AIR CYCLONIC CIRCULATION LIES OVER SOUTH PUNJAB AND EXTENDS

UPTO 1.5 KM ABOVE MEAN SEA

LEVEL.

 THE UPPER AIR CYCLONIC CIRCULATION OVER NORTHWEST UTTAR PRADESH &

NEIGHBOURHOOD PERSISTS AND

NOW SEEN AT 0.9 KM ABOVE MEAN SEA LEVEL.

 THE TROUGH NOW RUNS FROM ABOVE CYCLONIC CIRCULATION OVER NORTHWEST

UTTAR PRADESH TO EAST

BANGLADESH ACROSS EAST UTTAR PRADESH, JHARKHAND, GANGETIC WEST BENGAL

AT 0.9 KM ABOVE MEAN SEA

LEVEL.

 THE UPPER AIR CYCLONIC CIRCULATION OVER CENTRAL ASSAM PERSISTS AND

NOW EXTENDS UPTO 1.5 KM ABOVE

MEAN SEA LEVEL.

 A TROUGH IN WESTERLIES RUNS ROUGHLY ALONG LONG. 89OE TO THE NORTH OF

LAT. 23ON AT 3.1 KM ABOVE MEAN

SEA LEVEL.

 AN UPPER AIR CYCLONIC CIRCULATION LIES OVER SOUTH TELANGANA AT 0.9

KM ABOVE MEAN SEA LEVEL.

 THE UPPER AIR CYCLONIC CIRCULATION OVER SOUTHEAST BAY OF BENGAL

PERSISTS AND NOW SEEN BETWEEN 1.5

& 5.8 KM ABOVE MEAN SEA LEVEL TILTING SOUTHWESTWARDS WITH HEIGHT.

 A TROUGH RUNS FROM THE ABOVE CYCLONIC CIRCULATION OVER SOUTHEAST BAY

OF BENGAL TO CENTRAL COASTAL

ANDHRA PRADESH & YANAM BETWEEN 1.5 & 5.8 KM ABOVE MEAN SEA LEVEL

TILTING SOUTHWESTWARDS WITH

HEIGHT.

 THE UPPER AIR CYCLONIC CIRCULATION OVER WEST CENTRAL BAY OF BENGAL

AND ADJOINING NORTH COASTAL

ANDHRA PRADESH AT 1.5 KM ABOVE MEAN SEA LEVEL HAS MERGED WITH ABOVE

TROUGH.

 THE UPPER AIR CYCLONIC CIRCULATION OVER EASTCENTRAL & ADJOINING

NORTHEAST ARABIAN SEA OFF SOUTH

GUJARAT-NORTH KONKAN COASTS 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,

COASTAL KARNATAKA, SOUTH INTERIOR

KARNATAKA;

 AT MANY PLACES OVER GANGETIC WEST BENGAL, COASTAL ANDHRA PRADESH &

YANAM, TELANGANA, RAYALASEEMA,

NORTH INTERIOR KARNATAKA, KERALA & MAHE, LAKSHADWEEP;

 AT A FEW PLACES OVER JHARKHAND, BIHAR, JAMMU-KASHMIR-LADAKH

-GILGIT-BALTISTAN-MUZAFFARABAD, KONKAN &

GOA, VIDARBHA, TAMIL NADU, PUDUCHERRY & KARAIKAL;

 AT ISOLATED PLACES 0VER ODISHA, UTTAR PRADESH, UTTARAKHAND,

HARYANA-CHANDIGARH-DELHI, PUNJAB, HIMACHAL

PRADESH, EAST RAJASTHAN, MADHYA PRADESH, GUJARAT STATE, MADHYA

MAHARASHTRA, MARATHWADA,

CHHATTISGARH

 DRY WEATHER OVER WEST RAJASTHAN.

WEATHER WARNINGS:

17TH

MAY (DAY 1)

 HEAVY TO VERY HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER

ARUNACHAL PRADESH AND ASSAM &

MEGHALAYA.

 HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER ANDAMAN & NICOBAR

ISLANDS, MADHYA MAHARASHTRA,

NAGALAND, MANIPUR, MIZORAM AND TRIPURA, SUB HIMALAYAN WEST BENGAL &

SIKKIM, TAMIL NADU PUDUCHERRY &

KARAIKAL AND TELANGANA.

 THUNDERSQUALL WITH WIND SPEED REACHING (50-60KMPH) VERY LIKELY AT

ISOLATED PLACES OVER MADHYA

MAHARASHTRA, ODISHA AND WEST BENGAL & SIKKIM.

 THUNDERSTORM ACCOMPANIED WITH LIGHTNING & GUSTY WINDS (40-50KMPH)

VERY LIKELY AT ISOLATED PLACES OVER

ANDHRA PRADESH, ASSAM & MEGHALAYA, BIHAR, CHHATTISGARH, EAST

RAJASTHAN, EAST UTTAR PRADESH, HARYANA,

CHANDIGARH & DELHI, INTERIOR KARNATAKA, JHARKHAND, KONKAN & GOA,

MARATHWADA, NAGALAND, MANIPUR,

MIZORAM AND TRIPURA, TAMIL NADU PUDUCHERRY & KARAIKAL, TELANGANA,

UTTARAKHAND, VIDARBHA AND WEST

MADHYA PRADESH.

 THUNDERSTORM ACCOMPANIED WITH LIGHTNING & GUSTY WINDS (30-40KMPH)

VERY LIKELY AT ISOLATED PLACES OVER

ARUNACHAL PRADESH, GUJARAT REGION, EAST MADHYA PRADESH, KERALA & MAHE

AND WEST UTTAR PRADESH.

 THUNDERSTORM ACCOMPANIED WITH LIGHTNING VERY LIKELY AT ISOLATED

PLACES OVER COSTAL KARNATAKA.

 DUST STORM VERY LIKELY AT ISOLATED PLACES OVER HARYANA, CHANDIGARH &

DELHI.

 DUST RAISING WINDS VERY LIKELY AT ISOLATED PLACES OVER WEST

RAJASTHAN.

 STRONG SURFACE WINDS VERY LIKELY AT ISOLATED PLACES OVER ODISHA.



 HEAT WAVE CONDITIONS VERY LIKELY AT ISOLATED PLACES OVER

JAMMU-KASHMIR-LADAKH-GILGIT-BALTISTAN-

MUZAFFARABAD, MADHYA PRADESH, RAJASTHAN AND UTTAR PRADESH.



 HOT AND HUMID WEATHER VERY LIKELY AT ISOLATED PLACES OVER BIHAR,

JHARKHAND AND ODISHA.

 WARM NIGHT CONDITIONS VERY LIKELY AT ISOLATED PLACES OVER EAST

MADHYA PRADESH.

 SQUALLY WIND WITH SPEED 45 KMPH TO 50 KMPH GUSTING TO 55 KMPH LIKELY

TO PREVAIL ALONG AND OFF SOMALIA

COAST, OMAN COAST, ALONG AND OFF SOUTH SRI LANKA COAST AND ADJOINING

SOUTHWEST BAY OF BENGAL. SQUALLY

WEATHER WITH WIND SPEED 35 KMPH TO 45 KMPH GUSTING TO 55 KMPH

PREVAILING OVER GULF OF MANNAR AND

ADJOINING COMORIN AREA, OFF NORTH TAMIL NADU COAST, OVER ANDAMAN SEA.

18TH

MAY (DAY 2)

 HEAVY TO VERY HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER

ASSAM & MEGHALAYA AND SOUTH INTERIOR

KARNATAKA.

 HEAVY RAINFALL VERY LIKELY AT ISOLATED PLACES OVER ARUNACHAL

PRADESH, COSTAL KARNATAKA, KERALA & MAHE,

MADHYA MAHARASHTRA, NAGALAND, MANIPUR, MIZORAM AND TRIPURA, NORTH

INTERIOR KARNATAKA, TAMIL NADU

PUDUCHERRY & KARAIKAL, TELANGANA AND WEST BENGAL & SIKKIM.

 THUNDERSQUALL WITH WIND SPEED REACHING (50-60KMPH) VERY LIKELY AT

ISOLATED PLACES OVER BIHAR, JHARKHAND

AND MADHYA MAHARASHTRA.



 THUNDERSTORM ACCOMPANIED WITH LIGHTNING & GUSTY WINDS (40-50KMPH)

VERY LIKELY AT ISOLATED PLACES OVER

ASSAM & MEGHALAYA, CHHATTISGARH, EAST RAJASTHAN, EAST UTTAR PRADESH,

HIMACHAL PRADESH, INTERIOR

KARNATAKA, JAMMU-KASHMIR-LADAKH-GILGIT-BALTISTAN-MUZAFFARABAD, KONKAN

& GOA, MARATHWADA,

NAGALAND, MANIPUR, MIZORAM AND TRIPURA, TAMIL NADU PUDUCHERRY &

KARAIKAL, TELANGANA, VIDARBHA, WEST

BENGAL & SIKKIM AND WEST MADHYA PRADESH.

 THUNDERSTORM ACCOMPANIED WITH LIGHTNING & GUSTY WINDS (30-40KMPH)

VERY LIKELY AT ISOLATED PLACES OVER

ANDHRA PRADESH, EAST MADHYA PRADESH, KERALA & MAHE AND ODISHA.

 THUNDERSTORM ACCOMPANIED WITH LIGHTNING VERY LIKELY AT ISOLATED

PLACES OVER ARUNACHAL PRADESH, COSTAL

KARNATAKA AND LAKSHADWEEP.

 DUST RAISING WINDS VERY LIKELY AT ISOLATED PLACES OVER WEST

RAJASTHAN.



 HEAT WAVE CONDITIONS VERY LIKELY AT ISOLATED PLACES OVER

JAMMU-KASHMIR-LADAKH-GILGIT-BALTISTAN-

MUZAFFARABAD, MADHYA PRADESH, RAJASTHAN AND UTTAR PRADESH.



 WARM NIGHT CONDITIONS VERY LIKELY AT ISOLATED PLACES OVER EAST

MADHYA PRADESH.

 SQUALLY WIND WITH SPEED 45 KMPH TO 50 KMPH GUSTING TO 55 KMPH LIKELY

TO PREVAIL ALONG AND OFF OMAN

COAST, ALONG AND OFF SOUTH SRI LANKA COAST AND ADJOINING SOUTHWEST

BAY OF BENGAL, OVER GULF OF MANNAR

AND ADJOINING COMORIN AREA. SQUALLY WEATHER WITH WIND SPEED 35 KMPH

TO 45 KMPH GUSTING TO 55 KMPH

PREVAILING ALONG AND OFF KERALA, KARNATAKA COASTS AND ADJOINING

LAKSHADWEEP AREA.=