This is the summary report of Highest Flood Levels (HFL) breach incidents which we could document from CWC’s flood monitoring website during South West Monsoon Season 2025. The monthly reports for HFL breach incident for July 2025, August 2025 and September 2025 can be seen by clicking the hyperlinks and the detailed final report can be seen here. SANDRP’s previous reports on the subject can be seen here: HFL breach incidents in 2018, 2019, 2020, 2021 (I), 2021 (II), 2022 (I), 2022 (II), 2023, and 2024.
Continue reading “Rivers in Extreme Floods During SW Monsoon 2025”Tag: Extreme Flood
Rivers Flowing in Extreme Floods in September 2025
(Feature Image: Yamuna river in severe flood at Mawi site in Kairana, UP on Sept. 02, 2025)
We have been able to observe river attaining new Highest Flood Level (HFL) at least at 18 flood monitoring sites of the Central Water Commission (CWC) in the last month of South West Monsoon 2025. These 18 sites are spread over 7 States & UT, including Jammu & Kashmir (6 sites), Maharashtra (4 sites), Uttar Pradesh (3 sites), Haryana (2 sites), Madhya Pradesh, Telangana and Karnataka (1 each site) comprising 5 river basins including Indus (6), Ganga (6), Krishna (3), Tapi (2) and Godavari (1).
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Rivers Crossing the Highest Flood Levels in July 2025
(Feature Image: Hydrograph of Pin river at Gulling site in Lahul & Spiti on July 04, 2025)
In July 2025 during the South West Monsoon, we have found rivers crossing their respective Highest Flood Levels (HFL) at least at 12 flood monitoring sites of Central Water Commission (CWC). Of the 12 sites, 11 are in Ganga basin and 1 site is in Narmada basin. The details of all these sites are given in table below. The sixth column of the table is the information about rise in meter (m) over the old HFL, duration (hours-hrs) the river has stayed in extreme floods and number of years (yrs) after the HFL is breached. The 12 sites are spread over 5 states: Madhya Pradesh, Uttar Pradesh, Bihar, Uttarakhand and Jharkhand.
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Rivers Flowing in Extreme Flood Situation during Northeast Monsoon 2024
In addition to rivers flowing in extreme flood situations at 64 flooding monitoring stations during Southwest Monsoon 2024, we have found that rivers have crossed highest flood level (HFL) at four stations during just concluded Northeast Monsoon season. Of these four stations, three are in Tamil Nadu state and one is in Union Territory of Puducherry.
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Rivers Crossing High Flood Levels In SW Monsoon 2023 in India
(Feature Image: Yamuna river near CWC flood monitoring site at Mawi in Kairana. SANDRP/June 2023)
SANDRP has compiled Highest Flood Level (HFL) breach incidents, which includes 2 incidents in June, 34 in July, 17 in August, 22 in September 2023. This report presents the final summary of all HFL breach incidents taking place during South West Monsoon season 2023. The PDF file has the details on all the HFL breach. Our previous reports on the subject can be seen here: HFL breach incidents in 2018, 2019, 2020, May-Sept 2021, Oct.-Nov 2021, May-June 2022 and July-October 2022. .
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India’s Rivers Crossing Highest Flood Level in Oct 2022
(Feature Image: River Rapti flowing in severe flood situation at Balrampur level forecast site in Balrampur district, Uttar Pradesh on Oct. 07, 2022. Image Source: CWC)
The retreating South West monsoon 2022 witnessed unusual rainfall spells in the first ten days of October eventually resulting in breach of Highest Flood Levels (HFL) at least at 26 stations in the country. In 2021, in entire October, there were just nine instances across India when HFL was breached, compared to 26 already this year. Rainfall across India as on Oct 26 morning as per IMD, is 109.2 mm, already 60% above normal rainfall of 68.3 mm.
26 HFL crossing sites in Oct 2022 comprised of 09 Level Forecast (LF) and 17 Level Monitoring (LM) crossing HFLs. 21 are in Ganga basin, 1 in Narmada basin, 3 in Cauvery basin and 1 is part of East Flowing Rivers (EFR) between Pennar to Kanyakumari basin. Of total sites breaching the HFLs in Ganga basin 13 are in Uttar Pradesh, 3 each in Uttarakhand and Madhya Pradesh and 2 in Bihar.
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