The IMD predicts a renewed surge of the southwest monsoon between August 20 and 24, potentially triggering heavy rainfall and flooding across eastern and central Indian states.

  • Monsoon revival expected between August 20 and August 24.
  • Low-pressure system from the Bay of Bengal driving the weather shift.
  • High risk of flooding in UP, Bihar, Jharkhand, and West Bengal.

Following a brief lull in precipitation across northern and western India, the southwest monsoon is gearing up for a significant resurgence. Meteorologists are forecasting an active spell of widespread rainfall starting August 20, extending through August 24.

Satellite imagery provided by the India Meteorological Department (IMD) reveals extensive clouding and intense convective activity over eastern and central India. This pattern indicates a renewed phase of precipitation, primarily driven by a low-pressure area moving inland from the Bay of Bengal and the oscillation of the monsoon trough.

Regional Impact Analysis

Weather experts suggest that the upcoming period will be critical for states including Uttar Pradesh, Bihar, Jharkhand, West Bengal, Odisha, and Chhattisgarh. These regions are expected to witness repeated spells of moderate to heavy rainfall. In the immediate 48-hour window, the heaviest concentration of rain is predicted for eastern and central Uttar Pradesh and the foothills of Uttarakhand.

Why This Matters

BozokMedia analysis shows that this revival is a double-edged sword. While it is essential for replenishing groundwater and supporting Kharif crops in deficit states, the intensity of the rain poses a severe threat to urban drainage systems, potentially leading to widespread waterlogging and flash floods.

"The interaction between the moisture-laden winds from the Bay of Bengal and the shifting monsoon trough will determine the exact distribution of this rainfall surge."

This shift also marks the end of a drier phase in Punjab, Haryana, and the Delhi-NCR region, where northwesterly dry winds had previously reduced humidity levels. As the monsoon trough oscillates, rainfall activity is expected to gradually penetrate deeper into North India.

RegionExpected ImpactRisk Level
East India (Bihar, WB)Heavy to Very Heavy RainHigh
Central India (Chhattisgarh, Odisha)Moderate to Heavy RainMedium
North India (Delhi, Punjab)Light to Moderate RainLow to Medium
Did You Know?: The monsoon trough is a conceptual line of low pressure that acts as a 'highway' for moisture-laden clouds to travel across the Indian subcontinent.

Frequently Asked Questions

1. When will the monsoon revive?
The revival is expected to be most active between August 20 and August 24.

2. Which areas are most vulnerable to flooding?
Eastern and central Uttar Pradesh, along with the foothills of Uttarakhand, are at the highest risk of localized flooding.