Yellow alert in 18 Bihar districts: thunderstorms, 40-50 kmph winds on Friday
Synopsis
With the southwest monsoon on its way out, Bihar is not getting a clean break. The Meteorological Centre, Patna has put 18 districts on yellow alert for Friday — thunderstorms, lightning and winds up to 50 kmph across a broad swathe from Champaran to Rohtas. Conditions ease by Sunday, but the Seemanchal and Kosi belts could see lingering showers.
Key Takeaways
The Meteorological Centre, Patna has issued a yellow alert for 18 Bihar districts on Friday, 10 October 2025 .
Thunderstorms and strong winds of 40–50 kmph are forecast across north-western, north-central and south-western Bihar.
Additional rainfall is expected in Purnea , Katihar , Araria , Supaul , Madhepura , Saharsa and Kishanganj .
Patna is expected to remain mostly dry, though isolated light showers are possible.
Weather activity is forecast to weaken from Saturday and improve broadly by Sunday , with lingering showers in Kishanganj .
Residents have been advised to avoid open spaces, tall trees and electric poles during thunderstorms.
The Meteorological Centre, Patna, has issued a yellow alert for 18 districts across Bihar on Friday, 10 October 2025, warning of thunderstorms, lightning and strong winds that could gust up to 40–50 kmph. The advisory comes as the southwest monsoon withdrawal nears completion, with residual atmospheric moisture continuing to trigger unsettled conditions across large parts of the state.
Districts Under the Yellow Alert
The 18 districts placed under the yellow alert are Gopalganj, Siwan, Bhojpur, Buxar, Arwal, Aurangabad, Saran (Chhapra), Vaishali, Samastipur, Darbhanga, Madhubani, Sitamarhi, Sheohar, Kaimur, East Champaran, West Champaran, Rohtas and Muzaffarpur. These districts span north-western, north-central and south-western Bihar, with the alert focused on the risk of thunderstorms and damaging wind gusts.
Rainfall Likely in Northern and Eastern Bihar
Beyond the alerted districts, rainfall is also possible in several northern and eastern areas, including Purnea, Katihar, Araria, Supaul, Madhepura, Saharsa and Kishanganj. The Seemanchal region of North Bihar is specifically flagged as a zone where rainfall activity could be more pronounced. Weather disturbances are expected to be most intense along the state's border districts on Friday.
Patna Expected to Stay Mostly Dry
Despite the widespread alert, Patna and its adjoining areas are forecast to remain largely dry on Friday. However, forecasters note that isolated light showers cannot be entirely ruled out due to localised cloud formation. Residents in the capital are advised to stay updated with official bulletins as conditions evolve through the day.
Outlook for the Weekend
According to the meteorological forecast, weather activity is expected to weaken from Saturday, with only isolated rainfall likely in parts of the Kosi, Seemanchal and eastern Bihar regions. By Sunday, conditions should improve across most of the state, though light rain may persist in isolated pockets, particularly in Kishanganj. No significant change in maximum or minimum temperatures is anticipated across most districts over the next five days.
Safety Advisory for Residents
Authorities have urged residents in affected districts to stay alert and follow official weather advisories. People are advised to take shelter inside substantial buildings during thunderstorms and to avoid open fields, isolated tall trees, electric poles and transformers. Unnecessary outdoor movement during severe weather spells should be avoided, and residents are asked to stay away from exposed locations until thunderstorms pass.
Point of View
Where even transitional weather systems can combine with saturated soils to cause localised flooding and lightning casualties. Bihar consistently records some of India's highest annual lightning fatality numbers, which makes the safety advisory as important as the meteorological forecast itself. What the bulletin does not address is the agricultural exposure: late-season thunderstorms can damage standing kharif crops at a critical pre-harvest stage. That dimension deserves as much attention as wind speeds.
NationPress
9 Oct 2026
Frequently Asked Questions
Which 18 districts are under the Bihar yellow alert on Friday?
The 18 districts under the yellow alert are Gopalganj, Siwan, Bhojpur, Buxar, Arwal, Aurangabad, Saran (Chhapra), Vaishali, Samastipur, Darbhanga, Madhubani, Sitamarhi, Sheohar, Kaimur, East Champaran, West Champaran, Rohtas and Muzaffarpur. The alert warns of thunderstorms, lightning and winds gusting up to 40–50 kmph on Friday.
What does a yellow alert mean in the context of Bihar weather?
A yellow alert issued by the Meteorological Centre, Patna, signals that residents in the listed districts should 'be aware' of potentially hazardous weather — in this case thunderstorms, lightning and strong winds. It is the mildest of three alert levels (yellow, orange, red) but still requires precautionary action, particularly avoiding open spaces and tall structures during storms.
Will Patna be affected by the thunderstorms on Friday?
Patna and its adjoining areas are expected to remain mostly dry on Friday, according to the Meteorological Centre. However, forecasters note that isolated light showers from localised cloud formation cannot be fully ruled out, and residents are advised to monitor official updates.
When will the weather improve in Bihar?
Weather activity is forecast to weaken from Saturday, with only isolated rainfall expected in the Kosi, Seemanchal and eastern Bihar regions. Conditions should broadly improve across most of Bihar by Sunday, though Kishanganj may continue to see light rain.
What safety steps have authorities recommended during the Bihar thunderstorm alert?
Residents have been advised to take shelter inside solid buildings during thunderstorms, avoid open fields, isolated tall trees, electric poles and transformers, and refrain from unnecessary outdoor movement until storms pass. Following official weather advisories from the Meteorological Centre, Patna is strongly recommended.
