Patna: Bihar is likely to experience a significant change in weather conditions from October 28 to 31, 2026, following the impact of severe Cyclone Arnab, which reportedly made landfall along the Andhra Pradesh coast. The effects of the storm are being felt in Bihar and several other states, with easterly winds contributing to increased weather activity across the region.
According to information from the Meteorological Centre, there is a strong possibility of intensified weather activity across Bihar during this four-day period. The weather department has issued an advisory warning of rainfall, thunderstorms, lightning and strong winds, urging residents to remain alert and follow safety precautions.
Bihar Weather Forecast: Heavy Rainfall and Strong Winds Expected
During the October 28–31 period, light to moderate rainfall is expected at many places across Bihar, while some areas may receive heavy to very heavy rainfall.
The weather department has also warned of the following conditions:
- Heavy rainfall: Several parts of the state may experience intense rainfall, increasing the risk of waterlogging in low-lying areas.
- Lightning and thunderstorms: Thunderstorms accompanied by lightning are likely in different parts of Bihar.
- Strong winds: Dusty winds with speeds of 40–50 kmph may affect various districts.
- Disruption to daily life: Persistent rainfall may cause waterlogging on roads and disrupt traffic movement.
Residents have been advised to remain cautious during periods of intense weather and avoid unnecessary exposure to thunderstorms and strong winds.
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Risk of Waterlogging and Damage to Crops and Houses
The weather department has cautioned that continuous and heavy rainfall could lead to water accumulation in low-lying areas, waterlogging on roads and disruption of transportation services.
Strong winds and heavy rain may also damage standing paddy crops and fruit-bearing trees, including banana, papaya, mango and drumstick trees.
Temporary structures, huts and houses with weak or thatched roofs could also suffer damage due to strong winds and rainfall. Residents living in vulnerable houses and temporary shelters should remain alert and take appropriate precautions.
Advisory for Farmers: Protect Paddy and Other Crops
Farmers have been advised to take precautionary measures to minimise potential losses from the expected adverse weather conditions.
The key recommendations include:
- Harvest mature crops: Farmers should immediately harvest ripe Kharif crops, particularly paddy, and store the produce in a safe and dry place.
- Suspend harvesting during bad weather: If crops have not yet been harvested, harvesting operations should be stopped during adverse weather conditions.
- Avoid additional irrigation: Farmers should temporarily suspend extra irrigation in their fields.
- Ensure proper drainage: Adequate drainage arrangements should be made to prevent water accumulation in agricultural fields.
- Protect standing crops: Farmers should take appropriate measures to reduce potential damage to paddy and horticultural crops from heavy rain and strong winds.
These precautions can help reduce crop losses and protect harvested produce from getting wet.
Lightning Safety Advisory for Residents
The weather department has urged people to exercise caution during thunderstorms and lightning. Residents should avoid open areas and exposed locations when thunder and lightning occur.
The key safety measures include:
- Stay away from open fields, agricultural land and other exposed areas during thunderstorms.
- Avoid standing under tall trees, near electricity poles or close to water bodies.
- Immediately take shelter inside a strong, permanent building when lightning occurs.
- Do not seek shelter under trees, as they can pose a serious risk during lightning.
- Remain alert to weather updates and follow advisories issued by the relevant authorities.
Residents Urged to Remain Alert Until October 31
With increased weather activity expected across Bihar from October 28 to 31, residents, farmers and commuters have been urged to remain vigilant. Heavy rainfall, lightning and winds reaching 40–50 kmph may affect normal activities, agriculture, road traffic and vulnerable structures.
Following official weather advisories and taking timely precautions will be important to minimise the potential impact of the adverse weather conditions.
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