# Red Flag Warning: Natrona County/Casper BLM; 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/0c5727067de9ab3f

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


source: [us-gov-api](https://highsignal.app/data/us-gov-api) (us-gov-api:noaa-weather)  published 2026-09-09 12:58 ingested 2026-09-10 02:52

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

## extract

Red Flag Warning — Natrona County/Casper BLM; Granite/Green/Ferris/Rattlesnake Mountains; Casper Mountain
Severity: Severe. Certainty: Likely.
* AFFECTED AREA:
In Central WY...Fire Weather Zones 280...289 and 300.

* 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 12 to 18 mph with gusts up to 25 to 30 mph. Thursday,
west to southwest 15 to 20 mph with gusts up to 35 to 40 mph.

* HUMIDITY: As low as 8 percent. Thursday, as low as 6 to 8
percent. RH recovery will be poor tonight.

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The historical document was shared with another weather alert and cannot be attributed to this record.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