Rain Watch

Heavy or unusual rain, checked every hour

Danger–

Alert–

Watch–

DS divisions at each level

How this works

Sudden heavy rainA lot of rain in the last 3 hours, which causes flash floods.

Heavy rain over a dayRain in the last 24 hours, or forecast for the next 24, at NBRO’s landslide watch, alert and evacuate levels (75, 100, 150 mm).

Unusual for the placeMore than the heaviest 1-in-100 day for this month in this area, from 10 years of rain records.

Ground already soakedSeveral wet days in a row, then more rain. Heavy rain on soaked ground is when slopes fail.

Rivers and DMCRiver gauges at flood levels or rising fast, rain measured at the gauges, and DMC landslide warnings.

Watch: one sign. Alert: a stronger sign, or two different sources agreeing (the rain model, a river gauge, DMC). Danger: very heavy rain, heavy rain on soaked ground, a river at major flood level, or a DMC evacuation warning.

Landslide warningsOfficial DMC warnings by DS division River levelsLive gauge readings

This is an early-warning aid from FloodSupport.org, not an official warning. Official warnings come from the Disaster Management Centre, the Department of Meteorology and NBRO; always follow them and your local officials. Rain is a weather-model estimate and forecast from Open-Meteo (CC BY 4.0), not rain-gauge readings, and can miss very local storms. Normal rain for each place is from ERA5 records, 2015–2024. River gauges are the Irrigation Department's. In an emergency, call 117.