Overview

• The Yamuna crossed the danger threshold of 205.33 metres at 2 p.m. on August 18, reaching 205.36 metres at the Old Railway Bridge and continued rising through the afternoon.
• Evacuation protocols will commence once water levels exceed 206.00 metres, a threshold that triggers relocation of residents from low-lying floodplain zones.
• Record seasonal releases from the Hathnikund Barrage peaked near 1.78 lakh cusecs, with additional outflows from Wazirabad and Okhla barrages expected in Delhi after a 48–50-hour travel time.
• NDMA, NDRF, Delhi I&FC, MCD, DJB and Railways have been placed on alert, deploying 14 boats, opening relief camps across six districts and preparing evacuation plans for vulnerable areas.
• The India Meteorological Department forecasts light to moderate monsoon rainfall through August 20, introducing further uncertainty to flood forecasts and downstream water management.