Alert archive / Idaho / Flash Flood Watches

Flash Flood Watches in Idaho, 2025

14 flash flood watches in 2025. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of flash flood watches reaches back to 2005.

Flash Flood Watches by county

Each county as a circle sized by its count in 2025. Tap one for its archive.

Flash Flood Watches
14
Busiest month
August5 flash flood watches
Busiest day
July 31, 20252 flash flood watches

Over time

By month

The alerts

Every alert, in the order issued. Times are local, Mountain Time. Each opens its own page with the text, the map, the radar and the sounding.

IssuedProductOfficeCountiesLasted
Jun 10, 12:15 PM MDTFlash Flood WatchPIHBlaine, Custer27 hr
Jul 3, 4:49 PM MDTFlash Flood WatchBOIAdams, Boise, Camas, Elmore, Gem, Valley and 1 more28 hr
Jul 3, 6:14 PM MDTFlash Flood WatchPIHBlaine, Custer23 hr
Jul 31, 9:38 AM MDTFlash Flood WatchBOIAdams, Boise, Camas, Elmore, Gem, Valley and 1 more12 hr
Jul 31, 9:51 AM MDTFlash Flood WatchPIHBlaine, Custer11 hr
Jul 31, 8:41 PM MDTFlash Flood WatchOTXNez Perce24 hr
Aug 15, 1:52 PM MDTFlash Flood WatchBOIAdams, Canyon, Gem, Owyhee, Payette, Valley and 1 more34 hr
Aug 17, 2:41 AM MDTFlash Flood WatchBOIAdams, Canyon, Gem, Owyhee, Payette, Valley and 1 more24 hr
Aug 25, 11:41 AM MDTFlash Flood WatchBOIAda, Adams, Boise, Camas, Canyon, Elmore and 8 more58 hr
Aug 25, 12:46 PM MDTFlash Flood WatchPIHBlaine, Custer25 hr
Sep 11, 12:55 PM MDTFlash Flood WatchPIHBlaine, Custer7 hr
Sep 11, 12:59 PM MDTFlash Flood WatchBOIAdams, Boise, Camas, Elmore, Gem, Valley and 1 more8 hr
Oct 1, 2:44 PM MDTFlash Flood WatchBOIAdams, Boise, Camas, Elmore, Gem, Valley and 1 more43 hr
Oct 1, 3:45 PM MDTFlash Flood WatchPIHBlaine, Custer46 hr

By county

Every county with at least one alert. A county page lists each alert that covered it.

The busiest days

Days with the most alerts issued, by UTC date.

  1. July 31, 20252flash flood watches
  2. August 25, 20252flash flood watches
  3. September 11, 20252flash flood watches
  4. October 1, 20252flash flood watches
  5. June 10, 20251flash flood watches
  6. July 3, 20251flash flood watches
  7. July 4, 20251flash flood watches
  8. August 1, 20251flash flood watches
  9. August 15, 20251flash flood watches
  10. August 17, 20251flash flood watches

Nearby

Alerts in force nowTornadoes on recordThe radar archive20242026

Sources

National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.