# Flash Flood Watch: Upper Snake River Plain — retained record

> Retained us-gov-api record from us-gov-api:noaa-weather.

Canonical: https://highsignal.app/data/records/26421c74d9464e0d

[← sources](https://highsignal.app/data)


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-08-12 00:43 ingested 2026-08-12 07:26

[original source ↗](http://www.weather.gov/)

## extract

Flash Flood Watch — Upper Snake River Plain
Severity: Severe. Certainty: Possible.
* WHAT...Flash flooding and debris flows caused by excessive rainfall
are possible over the Big Rock burn scar.

* WHERE...The Big Rock burn scar near Heise.

* WHEN...From Thursday afternoon through Thursday evening.

* IMPACTS...Heavy rainfall over the Big Rock burn scar is possible
Thursday afternoon into Thursday evening. 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 near 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

## retained text

The historical document was shared with another weather alert and cannot be attributed to this record. The original extract is preserved above; the exact alert link was not retained.