Active Weather Alerts
Flash Flood Watch
Issued: 8:52 AM Sep. 18, 2026 – National Weather Service
...FLASH FLOOD WATCH FOR THE BIG ROCK BURN SCAR IN EFFECT THROUGH THIS EVENING... * WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Big Rock burn scar. * WHERE...A portion of southeast Idaho, including the following area, Upper Snake River Plain. * WHEN...Through this evening. * IMPACTS...Heavy rainfall over the Big Rock burn scar is expected during the period of the watch. Anyone in or near the Big Rock burn scar should prepare for potential debris flow moving through the Big Rock burn scar. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding and debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall over the Big Rock burn scar, which may lead to flash flooding and debris flows. - Some locations that may experience flash flooding include... Heise. - http://www.weather.gov/safety/flood PRECAUTIONARY/PREPAREDNESS ACTIONS... You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued. &&
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