(Feature image:- Local people trying to crossing the overflowing Jahlma drain with a rope to take an injured person to the hospital. Source: Amar Ujala, July 30, 2021.)
The Himalayan states have been facing reoccurring cloud burst disasters for the past several years. The state of Uttarakhand witnessed 50 such events, 24 pre monsoon[i] and 26 during south west monsoon[ii] season of 2021. This account highlights the situation of the emerging climatic threat in Himachal Pradesh in pre monsoon and monsoon months in 2021.
Here it may be noted that during SW Monsoon months of June to Sept 2021, Himachal Pradesh had 10% below normal rainfall, with 8 of the twelve districts of the state experiencing below normal rainfall. Lahaul and Spiti had the highest deficit at -65%. Among the four districts that had above normal rains, Kullu had the highest surplus at +40%. Even during the pre-monsoon months (March to May 2021), HP had 10% below normal rains.
Continue reading “Himachal Pradesh: Cloud Bursts in Monsoon 2021” →
SANDRP has been compiling the extreme rainfall events termed as cloud bursts occurring during monsoon season in Himalayan states. This account brings out the status of such incidents in the state of Uttarakhand. We have already published details of at least 24 ‘cloud burst’[i] incidents in pre monsoon month of May 2021 in the state. In following parts, we would cover the other states in Western Himalaya.
Continue reading “Uttarakhand: Cloud Bursts in SW Monsoon 2021” →
(Feature image River Betwa in flood spate on Aug. 4, 2021. Source: Sharad Chandra, Director, CWC)
While India has received 874.6 mm rainfall which falls in normal[i] category in just concluded south west monsoon season, there have been at least 27 incidents of rivers crossing the Highest Flood Levels (HFLs) ever recorded in the past and attaining new HFLs in 5 river basins (some composite basins) in India, as recorded by the Central Water Commission (CWC) Flood Forecasting site[ii] during the monsoon.
The maximum 12 such instances have taken place in Ganga basin followed by 6 in west flowing rivers Tapi to Tadri basin, 5 in Godavari, 2 in West Flowing rivers Tadri to Kanyakumari basin and 1 each in Subernarekha and Tapi basin.
For past three years, SANDRP has been tracking the HFL breach incidents during monsoon season. The analysis of such HFL breaches in 2018[iii], 2019[iv] and 2020[v] can be seen on our website.
Continue reading “Rivers that crossed Highest Flood Level in Monsoon 2021” →