India Weather Forecast: Heatwave Relief in North as Heavy Rain Alerts Grip East and Northeast India

Weather Updates: Meteorological conditions across India are set for a significant transition on April 29, 2026. According to the latest bulletins from the India Meteorological Department (IMD), a combination of an active Western Disturbance and strong moisture incursion from the Bay of Bengal will bring contrasting weather patterns. While northern regions expect a break from the scorching heat, the eastern and northeastern states are bracing for intense pre-monsoon thunderstorms.

North and Northwest India: Respite from Heatwave

The relentless heatwave that dominated Delhi, Punjab, and Haryana over the past week is expected to abate. A fresh Western Disturbance, acting as a trough in the middle tropospheric westerlies, is moving across the region.

• Temperature Drop: Maximum temperatures are likely to fall by 3–5°C across Northwest India on April 29 and 30.
• Storm Activity: Punjab, Haryana, and Delhi-NCR are on alert for thundersqualls with wind speeds reaching 50–60 kmph, occasionally gusting to 70 kmph.
• Rajasthan: While general temperatures may dip slightly, West Rajasthan remains under a “Warm Night” condition. Significant dust storm activity is forecasted for both East and West Rajasthan, posing a challenge for visibility and road safety.

East India: Red Alert for Heavy Rainfall

The atmospheric instability is most severe in the eastern belt. A cyclonic circulation over East Uttar Pradesh, coupled with a trough extending toward the Bay of Bengal, is fueling intense weather events.

• West Bengal and Sikkim: IMD has issued a “Take Action” (Red Alert) for Sub-Himalayan West Bengal and Sikkim. Isolated areas are expected to receive very heavy falls on April 29.
• Bihar and Jharkhand: Isolated heavy rainfall is likely in Bihar. Both states, along with Gangetic West Bengal and Odisha, are prone to thundersqualls (50–60 kmph) and frequent lightning strikes.
• Gangetic West Bengal: Residents should remain cautious as isolated hailstorms are possible, which could impact standing crops.

Northeast India: Widespread Pre-Monsoon Activity

The northeastern states continue to experience a vigorous pre-monsoon phase. Moist southerly winds from the Bay of Bengal are causing widespread light to moderate rainfall.

• Key Alerts: Heavy to very heavy rainfall is predicted for Arunachal Pradesh, Assam, and Meghalaya.
• Impact: Authorities have warned of potential localized flooding and waterlogging in low-lying areas of the Brahmaputra valley. Wind gusts of up to 50 kmph are expected during thunderstorms.

South Peninsular India: Thunderstorms in Telangana and Kerala

South India remains humid with localized instability.

• Telangana: Thunderstorms accompanied by lightning and gusty winds are forecasted for 27 districts, including the northern pockets which recently experienced soaring temperatures above 44°C.
• Kerala: Scattered rainfall is expected to provide some relief from the humid conditions, though heavy rain is likely in isolated pockets toward the end of the day.

Expert Summary and Advisory

The current weather pattern highlights a classic pre-monsoon “clash” of air masses. The interaction between the dry North-Westerly winds and the moist South-Easterly winds is creating a high-energy environment for thunderstorms.

Safety Recommendations:

1. For Farmers: Ensure harvested crops are sheltered, especially in Bihar and Bengal, to prevent damage from rain and potential hailstorms.
2. For Commuters: Stay updated on dust storm warnings in Rajasthan. Reduced visibility can lead to hazardous driving conditions.
3. For General Public: Avoid taking shelter under trees or near metal structures during lightning. In heat-prone areas of Central India where relief is gradual, continue to stay hydrated during the afternoon hours.

The IMD continues to monitor these systems. As the Western Disturbance passes, temperatures in the North may rise again by early May, making this 48-hour window a critical period of relief.

Source: Based on India Meteorological Department (IMD) Night Bulletin and Regional Met Centre Reports.