NOAA NWS / CAPTURE HISTORY
Red Flag Warning issued October 9 at 8:43AM MDT until October 9 at 7:00PM MDT by NWS Riverton WY
Latest captured source record. This is an archive, not a current warning service.
Open the detailed event record ↗- First tracked
- 2026-10-09 17:11:48.776Z
- Last seen in a feed
- 2026-10-09 18:14:52.349Z
- Source classification
- Severe · Source update
- Issuer / area
- NWS Riverton WY · Sweetwater County/Rock Springs BLM/Flaming Gorge NRA; Natrona County/Casper BLM; Johnson County/Casper BLM; Granite/Green/Ferris/Rattlesnake Mountains
- Certainty / urgency
- Likely / Expected
- Message expiry (not hazard end)
- 2026-10-10T01:00:00.000Z
- Forecast onset / end
- 2026-10-09T18:00:00.000Z / 2026-10-10T01:00:00.000Z
Red Flag Warning · Sweetwater County/Rock Springs BLM/Flaming Gorge NRA; Natrona County/Casper BLM; Johnson County/Casper BLM; Granite/Green/Ferris/Rattlesnake Mountains. Severe; likely; urgency: expected.
Archived official description
* IMPACTS: Low humidity...unseasonably warm temperatures...and strong gusty wind could cause erratic fire behavior. * AFFECTED AREA: In Central WY Fire Zones...280...289. In North Central WY Fire Zone....281. In Southwest WY Fire Zone....279. * COUNTIES AFFECTED: In Central WY...Fremont...Natrona. In North Central WY...Johnson. In Southwest WY...Sweetwater. * WIND: Southwest 15 to 25 mph with gusts 35 to 45 mph. * HUMIDITY: As low as 10 to 15 percent. * TEMPERATURES: Highs in the mid to upper 70s.
Instructions in this archived message
A Red Flag Warning means that critical fire weather conditions are either occurring now....or will shortly. A combination of strong winds...low relative humidity...and warm temperatures can contribute to extreme fire behavior.
How the record changed
Only changes captured by this journal are listed; this is not the authority’s complete history. Timestamps distinguish publication from our capture. Missing messages are never treated as cancellations.
baseline · Captured 2026-10-09 17:11:48.776Z
Red Flag Warning issued October 9 at 8:43AM MDT until October 9 at 7:00PM MDT by NWS Riverton WY
Red Flag Warning · Sweetwater County/Rock Springs BLM/Flaming Gorge NRA; Natrona County/Casper BLM; Johnson County/Casper BLM; Granite/Green/Ferris/Rattlesnake Mountains. Severe; likely; urgency: expected.
Source issued/updated 2026-10-09T14:43:00.000Z · Source update
Source for this capture ↗