Severe thunderstorm activity over east & northeast India during next 3-4 days 

Synoptic conditions:

• A cyclonic circulation lies over east Bihar and adjoining West Bengal & Jharkhand and a trough runs from this cyclonic circulation to Manipur across Meghalaya in lower levels.
• An east-west trough runs from Punjab to southeast Madhya Pradesh across Haryana & west Madhya Pradesh in lower levels.
• Core of sub-tropical westerly jet runs between latitudes 23 & 27ﾟN over Indian region.

Weather Forecast:

• Under the influence of above systems, scattered to widespread rainfall/thunderstorm activity very likely over east and northeast India during next 3-4 days.

Thunderstorm and heavy rainfall warnings:

30 April:

• Thunderstorm accompanied with squall/hail very likely at isolated places over West Bengal & Sikkim
• Thunderstorm accompanied with squall very likely at isolated places over Bihar and Thunderstorm with gusty winds at isolated places over Assam & Meghalaya, Nagaland, Manipur, Mizoram & Tripura, Odisha & Jharkhand.
• • Heavy rain very likely at isolated places over Assam & Meghalaya and Mizoram & Tripura and West Bengal & Sikkim.

1. May:
   • Thunderstorm accompanied with squall/hail very likely at isolated places over West Bengal & Sikkim, Mizoram, Tripura & Jharkhand.

• Thunderstorm accompanied with squall very likely at isolated places over Bihar & Odisha andThunderstorm with gusty winds at isolated places over Assam & Meghalaya, Nagaland, Manipur,
• Heavy rain very likely at isolated places over Assam & Meghalaya, Mizoram & Tripura, West Bengal & Sikkim and Odisha.

02 May:

• Thunderstorm accompanied with squall likely at isolated places over Gangetic West Bengal & Odisha and Thunderstorm with gusty winds at isolated places over Assam & Meghalaya, Nagaland, Manipur, Mizoram, Tripura, Sub-Himalayan West Bengal & Jhjarkhand.
• Heavy rain very likely at isolated places over Assam & Meghalaya and Odisha,

03 May:

• Thunderstorm accompanied with squall likely at isolated places over Gangetic West Bengal andOdisha.