NOAA NWS / Event history
Flash Flood Watch issued October 21 at 10:06AM MDT until October 23 at 12:00PM MDT by NWS Boise ID
Flash Flood Watch · Boise Mountains. Severe; possible; urgency: future.
- Bulletin issued
- 21 October 2026 at 16:06 UTC
- First saved by us
- 21 October 2026 at 16:10 UTC
- Last included in a daily record
- 21 October 2026
The linked daily edition preserves what we captured that UTC day; this event page is not a live warning.
- Source classification
- Severe · Source alert
A recent feed check does not mean a new observation. This page preserves source records; it does not establish current safety or warning status.
- Issuer / area
- NWS Boise ID · Boise Mountains
- Certainty / urgency
- Possible / Future
- Message expiry (not hazard end)
- 22 October 2026 at 12:15 UTC
- Forecast onset / end
- 23 October 2026 at 03:00 UTC / 23 October 2026 at 18:00 UTC
Archived official description
* WHAT...Flash flooding and debris flows caused by excessive rainfall are possible over the Crooked burn scar and Wapiti burn scar. Total rainfall up to 1.25 inch is possible on the burn scars. * WHERE...Wapiti and Crooked burn scars in southwest Idaho. * WHEN...From Thursday evening through Friday morning. * IMPACTS...Heavy rainfall over the Crooked and Wapiti burn scars is expected up to and during the period of the watch. Residents near the Crooked and Wapiti burn scar should prepare for potential debris flow. Be sure to stay up to date with information from local authorities. Heavy rainfall could trigger flash flooding or debris flows in and near recent wildfire burn scars. * ADDITIONAL DETAILS... - National Weather Service Meteorologists are forecasting heavy rainfall over the Crooked and Wapiti burn scar, which may lead to flash flooding and debris flows. - Some locations that may experience flash flooding include... Grandjean and Barber Flat Guard Station. - https://www.weather.gov/safety/flood
Instructions in this archived message
You should monitor later forecasts and be prepared to take action should Flash Flood Warnings be issued.
The saved record
What changed
0 updates · 1 first record
Each update compares two versions we saved. This may not include every update from the source. A missing report does not mean an event has ended.
First saved record · 21 October 2026 at 16:10 UTC
Saved by us
Starting point
First saved record
Our first saved version of Flash Flood Watch issued October 21 at 10:06AM MDT until October 23 at 12:00PM MDT by NWS Boise ID. We have no earlier saved version to compare.
Bulletin issued: 21 October 2026 at 16:06 UTC
View saved version 1
Original saved fields, unchanged. This is our record, not an archived copy of the external webpage.
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