Floods · live
Flash Flood Warning: what it means
The National Weather Service says
“A Flash Flood Warning is issued when a flash flood is imminent or occurring. If you are in a flood prone area move immediately to high ground. A flash flood is a sudden violent flood that can take from minutes to hours to develop. It is even possible to experience a flash flood in areas not immediately receiving rain.”
weather.gov →Flash Flood Warnings in effect right now
1 Flash Flood Warning in effect, 3 Flash Flood Watchs.
States: Idaho, Arizona
- Flash Flood Warning until Oct 22, 2026, 11:15 AM ETApache, AZ
- Flash Flood Watch until Oct 23, 2026, 2:00 PM ETSawtooth/Stanley Basin
- Flash Flood Watch until Oct 23, 2026, 8:00 PM ETUpper Snake River Plain; Wood River Foothills
- Flash Flood Watch until Oct 23, 2026, 2:00 PM ETBoise Mountains
National Weather Service data, updated Oct 22, 2026, 7:45 AM ET. Not an official warning: follow your local NWS office. All US alerts →
Get ready before the next one
Our guideFlood preparedness: flood watch vs warning, what to do and how flood insurance works Kit builderBuild a flood kit sized to your household
Also: How to make water safe to drink in an emergency
Gear: Sump pump battery backups · Fireproof document safes · Weather radios
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