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Himachal Flash Floods

Last updated on June 27th, 2025 Posted on June 27, 2025 by NEXT IAS Current Affairs Team  272

Syllabus :GS3/Disaster Management 

In News

  • Heavy rains in Himachal Pradesh over the past 24 hours triggered cloudbursts, flash floods, and landslides, resulting in five deaths and one injury.

What is a flash flood?

  • It is a sudden surge of water in a stream or low-lying urban area, typically developing within six hours of heavy rainfall. 
  • It is most often triggered by intense storms that release a large volume of rain over a short period.

Drivers of flash flood

  • Flash floods are usually caused by intense rainfall from thunderstorms but can also result from dam or levee breaks and mudslides. 
  • Factors like rainfall intensity, terrain, vegetation, soil type, and land use influence how quickly and where flash floods occur. 
  • Urban areas are especially vulnerable due to impervious surfaces that prevent water absorption, leading to rapid runoff.
Scenario In India
– In India, flash floods are often triggered by cloudbursts and are common in Himalayan regions, where glacial lake overflows are increasing due to glacier melt. 
– These floods are frequently accompanied by landslides, especially in mountainous areas with steep slopes and unstable soil.
1. Flash floods have also been witnessed in cities like Chennai and Mumbai. 
2. Depression and cyclonic storms in the coastal areas of Orissa, West Bengal, Andhra Pradesh, and others also cause flash floods.

Impacts of flash flood

  • Flash floods develop suddenly, often catching people off-guard and posing serious risks to life and property.
  • They have wide-ranging health impacts, from immediate deaths and injuries to long-term physical and mental health issues. 
  • Most flood-related deaths result from drowning, followed by trauma, electrocution, and other causes. 
  • Health problems include infections, chemical exposure, respiratory issues, hypothermia, and disrupted healthcare services due to power outages.
  • Floods increase the risk of water-borne diseases and vector-borne diseases.

Source: TH

 
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