Uneven monsoon rainfall is causing severe floods in some South Asian regions while leaving other areas unusually dry this season [1, 2].

This disparity creates a dual crisis for the region, as millions of people face the simultaneous threats of catastrophic flooding and agricultural drought [2]. The imbalance disrupts food security and infrastructure across three nations.

Heavy rains have led to reported floods in Pakistan, Bangladesh, and northeast India [1, 2]. In India, rain-related incidents have resulted in more than 10 deaths [3]. Specific reports indicate flooding in the northeast Indian states of Mizoram and Tripura [3].

Conversely, central and western India are experiencing drought conditions [1, 2]. These regions are seeing a lack of necessary precipitation despite the annual monsoon season, which typically lasts from June to September [4].

Experts said the variability in rainfall distribution is driven by atmospheric circulation patterns [1]. These patterns are further amplified by climate change, which leads to excess water in some basins and critical shortages in others [1, 4]. The resulting instability makes the region more prone to landslides and heavy rains [4].

Local authorities in affected Indian states have monitored flight and train cancellations as the weather fluctuates [3]. The current patterns highlight the increasing volatility of the seasonal rains that the region relies upon for its primary water supply.

Millions of people are affected by the uneven monsoon rains

The simultaneous occurrence of extreme flooding and drought across South Asia illustrates the 'intensification' of the hydrological cycle. As the atmosphere warms, it can hold more moisture, leading to more violent bursts of rain in some areas while shifting traditional weather patterns away from others. This volatility undermines regional water management strategies and increases the vulnerability of agrarian economies to climate shocks.