Scorching Heat Grips South Bihar, Rains Expected in North and East; IMD Issues Alerts

Patna: Amid a persistent heatwave sweeping across much of Bihar, the India Meteorological Department (IMD) has issued a yellow alert for rain in 19 districts of North and East Bihar, while an orange alert for heatwave conditions remains in effect across 19 districts of South Bihar, including the capital Patna.

According to the IMD, North and East Bihar could experience thunderstorms accompanied by winds blowing at 50–60 km/h, bringing temporary relief from the rising temperatures. However, in contrast, South and Central Bihar continue to reel under oppressive heat, with daytime temperatures soaring to 40–42°C in several regions.

Weather Alert Breakdown

• Yellow Alert (Rain and Thunderstorms): 19 districts in North and East Bihar
• Orange Alert (Heatwave): 19 districts in South Bihar, including Patna, Gaya, Rohtas

Change Expected After Wednesday

The IMD has predicted a shift in weather patterns starting Wednesday evening, with the likelihood of light rainfall in parts of South Bihar, including Patna. Cloudy skies are expected on Thursday, June 12, though no major relief from the humid conditions is anticipated. Lightning and scattered rain may also occur in some regions of South Bihar, adding to weather unpredictability.

Why the Weather is Split in Bihar

Meteorologists attribute the stark contrast in weather patterns to uneven southwest monsoon activity and the collision of western and northwestern dry winds. North and East Bihar are currently receiving moist winds from the Bay of Bengal, spurring rainfall activity. In contrast, South and Central Bihar are dominated by hot, dry winds with minimal moisture, leading to extreme temperatures and heatwave conditions.

The situation has been exacerbated by the recent absence of Western Disturbance effects over the northern Himalayas and persistent heat in desert areas of Pakistan, where temperatures have remained around 48–49°C, pushing hot winds toward northern India.

Last 24 Hours: Rohtas Hottest Again

• Rohtas recorded 42.4°C, the highest in the state for the second consecutive day.
• Gaya followed at 40.7°C, while Patna logged 40.4°C.
• Heatwave conditions persisted across 32 districts, with hot westerly winds keeping the evenings uncomfortably warm.

Monsoon May Arrive by June 17

According to IMD estimates, the monsoon is likely to enter Bihar via Purnia and Kishanganj on June 17. Until then, residents across South Bihar are advised to take precautions against heatstroke and remain hydrated, while citizens in North and East Bihar should stay alert to possible thunderstorms and lightning.