2025 South West Monsoon in Upper Yamuna Basin

November 12, 2025 SANDRPLeave a comment

(Feature Image: Screenshot of IMD River basin wise cumulative rainfall map dated 30.09.2025 showing the Yamuna basin)

This report presents monthly rainfall figures during South West (SW) monsoon season 2025 for 16 districts located in 4 states of Himachal Pradesh (3 districts), Uttarakhand (3 districts), Haryana (5 districts), Uttar Pradesh (5 districts) which forms parts of the upper Yamuna basin. The India Meteorological Département (IMD) has divided Delhi in 10 divisions which entirely comes in upper Yamuna basin and the report has rainfall figures for entire Delhi area.

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CWC - Central Water Commission · Floods · Highest Flood Level

India’s Rivers in Extreme Floods in Oct 2025

November 1, 2025November 1, 2025 SANDRPLeave a comment

In Oct. 2025, we could find at least 06 flood monitoring sites of Central Water Commission (CWC), where rivers have crossed their Highest Flood Levels (HFL) after the end of South West Monsoon season 2025 on Sept 30 2025. Of the 6 sites, 2 each are in Brahmaputra basin in W Bengal and Ganga basin in Bihar. 1 site Anantharam on Musi river in Telangana is part of Krishna basin and 1 site Marella on Gundlakamma river in Andhra Pradesh is part of East Flowing Rivers between Mahandi and Pennar basin.

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Dam floods · Monsoon · Yamuna River

Did Ichari, Vyasi Dams Influence Yamuna Floods in 2025?

October 20, 2025 SANDRP1 Comment

(Feature Image: Ichari (Koti) Dam on Tons river in Dehradun in empty condition in first week of Sept. 25)

In the South West Monsoon 2025, the Yamuna river witnessed 3 flood spells in a span of two weeks between Aug. 17 and Sep 1. In the first and medium scale flood spell, hourly discharges crossed 1 lakh cusecs for 12 hours on Aug 17 and 1,78,996 cusecs flood was recorded at 16 hour at Hathnikund Barrage (HKB), in Yamuna Nagar, Haryana.

In the second and low scale flood spell, river received above 50,000 cusecs discharges for 21 hours on Aug. 29 with the peak volume of 83,774 cusecs at 16 hour. In the final and first high scale flood spell, hourly water volume in the river crossed 1 lakh cusecs for about 129 hours beginning at 4.00 hour on Sep 1 till 12:00 hour on Sep 5, and 3,29,313 lakh cusecs was recorded as peak flood volume at 9:00 hour on Sep 1.

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Floods · Highest Flood Level · Monsoon · Rivers

Rivers in Extreme Floods During SW Monsoon 2025

October 4, 2025 SANDRPLeave a comment

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.

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Highest Flood Level

Rivers Flowing in Extreme Floods in September 2025

October 1, 2025 SANDRPLeave a comment

(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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CWC - Central Water Commission · Floods · Highest Flood Level · Monsoon · River Basin

Rivers Crossing the Highest Flood Levels in Aug 2025

September 23, 2025 SANDRPLeave a comment

In the third month of South West Monsoon season 2025, we have been able to track at least 23 flood monitoring sites of the Central Water Commission (CWC) where the respective rivers have crossed their Highest Flood Level (HFL). These 23 sites are spread over 5 river basins -11 sites in Ganga basin, 9 sites in Indus basin & 1 each in Mahi, Godavari and Krishna basins.

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Disasters · floodplains · Floods · Yamuna River

Sept 2025: Why did Yamuna Repeat July 2023 Like Flood Spell in Delhi?

September 9, 2025September 15, 2025 SANDRPLeave a comment

(Feature Image: NDRF team gazing at flooded relief camps at Yamuna bazar, Delhi)

In first week of September 2025, Yamuna river in Delhi has again witnessed another unusual flood spell. This is happening two years after the river recorded unprecedent flood event in July 2023. This report compares the July 2023 flood with the one in Sept 2025 underlining the probable factors making these deluges uncommon and man-made flood disaster.

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Bhagirathi · Climate Change · Disasters · Floods · Ganga · Himalayas

Dharali Disaster: Bhagirathi River Blockage Partially Removed

August 17, 2025August 22, 2025 SANDRP1 Comment

(Feature Image: Formation of artificial lake in Bhagirathi river at Harshil, Uttarkashi)

After 11 days since the Dharali disaster unfolded in Bhagirathi valley Uttarakhand on August 5, 2025, an artificial lake formed on Bhagirathi river has been removed to some extent by the joint team of concerned departments on Aug 16, 2025 noon. The lake was formed after the Tel gaad partially blocked the Bhagirathi river at Harshil about 2.5 km downstream of Dharali.

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CWC - Central Water Commission · Highest Flood Level · River Basin

Rivers Crossing the Highest Flood Levels in July 2025

August 1, 2025October 2, 2025 SANDRPLeave a comment

(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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CWC - Central Water Commission · Floods · Indus

Himachal Pradesh: Why CWC’s Forecasting is Unavailable Amidst Flood Disaster?

July 9, 2025July 9, 2025 SANDRP1 Comment

(Feature Image: Screenshot of inactive hydrograph for Solang station on Beas river in Mandi district. Source: CWC Flood Forecast website)

Despite disastrous flood events causing significant destruction to human lives and infrastructures for past three years, the state of Himachal Pradesh has not seen much required improvements in flood monitoring and forecast servicesby the Central Water Commission’s (CWC) to help minimize the destruction toll.

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