# Red Flag Warning: Sweetwater County/Rock Springs BLM/Flaming Gorge NRA; Natrona County/Casper BLM; Upper Wind River Basin/Wind River Basin; Granite/Green/Ferris/Rattlesnake Mountains; Casper Mountain — retained record

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

Canonical: https://highsignal.app/data/records/72925fd61233fd5e

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-09-13 10:03 ingested 2026-09-14 02:46

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

## extract

Red Flag Warning — Sweetwater County/Rock Springs BLM/Flaming Gorge NRA; Natrona County/Casper BLM; Upper Wind River Basin/Wind River Basin; Granite/Green/Ferris/Rattlesnake Mountains; Casper Mountain
Severity: Severe. Certainty: Likely.
The National Weather Service in Riverton has issued a Red Flag
Warning, which is in effect from noon to 8 PM MDT Monday. the Fire
Weather Watch is no longer in effect.

* AFFECTED AREA:
In Central WY Fire Zones...280...283...289...300.
In Southwest WY Fire Zone....279.

* COUNTIES AFFECTED:
In Central WY...Fremont...Natrona.
In Southwest WY...Sweetwater.

* IMPACTS: Low Humidities and Strong Gusty Winds could cause
erratic fire behavior.

* WIND: West 20 to 30 mph with gusts up to 40 to 50 mph.

* HUMIDITY: As low as 10 to 15 percent.

## 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The historical document was shared with another weather alert and cannot be attributed to this record.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.