Severe Flood ● Active

Flash Flood Watch issued October 22 at 1:51AM MDT until October 23 at 6:00PM MDT by NWS Pocatello ID, United States of America

Icon = what happened · ring colour = how serious: Extreme Severe Moderate Minor

Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.

* WHAT...Flash flooding and debris flows caused by excessive rainfall
continue to be possible over the Big Rock burn scar and Ohio burn
scar.

* WHERE...Portions of central and southeast Idaho, including the
following areas, in central Idaho, Wood River Foothills. In
southeast Idaho, Upper Snake River Plain.

* WHEN...From this evening through Friday afternoon.

* IMPACTS...Heavy rainfall over the Big Rock and Ohio burn scar is
expected up to and during the period of the watch. Residents near
the Big Rock and Ohio 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 and debris
flows in and near recent wildfire burn scars.

* ADDITIONAL DETAILS...
- National Weather Service Meteorologists are forecasting heavy
rainfall over the Big Rock and Ohio 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

Measurements

Coordinates39.9645, -100.8105
RegionUpper Snake River Plain; Wood River Foothills
Location Precisioncountry
Issuing AuthorityUnited States of America — us-noaa-nws-en
Cap UrgencyFuture
Cap CertaintyPossible
Cap Expires2026-10-23T05:00:00-06:00

Official source

Warnings courtesy of the issuing national meteorological service, via the WMO Alert Hub.

This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.

Severity as published by WMO Alert Hub (national weather services).

View original report

This event as JSON · API and licence

Source updated 1 hour ago (Oct 22, 2026 07:52 UTC) · we last heard from WMO Alert Hub (national weather services) 35 seconds ago

On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.

About this location

The agency did not publish coordinates for this warning. The pin is the centre of the country, not the location of the event — read the area name, not the map, for where it applies.

Area as the agency stated it: Upper Snake River Plain; Wood River Foothills

Official authorities in United States

If you are there, these are the bodies whose instructions apply. This site is not an emergency service and does not issue warnings.

More for United States →

What to do

Follow the instructions issued by WMO Alert Hub (national weather services) and your local emergency services. The guidance below is background.

Flood preparation, evacuation decisions, and the dangers of driving or walking through floodwater.

Open Flood Safety Guide →

Earlier flood events in United States

Severe and extreme events of the same kind, before this one. Listed for scale, not because they are connected to it.

Nearby & related events

Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.