Idaho, Wyoming Severe Red Flag Warning | Effective 08/13/2026 00:16

Headline: 
Red Flag Warning issued August 13 at 1:16AM MDT until August 13 at 9:00PM MDT by NWS Pocatello ID
Event: 
Red Flag Warning
Urgency: 
Expected
Effective: 
August 13, 2026 - 12:16am
Expires: 
August 13, 2026 - 8:00pm
Description: 
...CRITICAL FIRE WEATHER CONDITIONS THURSDAY DUE TO SCATTERED THUNDERSTORMS... * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM, Fire Weather Zone 411 Centennial Mountains and Snake River Range/Targhee NF, Fire Weather Zone 413 Caribou Range/Caribou NF, Fire Weather Zone 422 Sawtooth Range/Northern Sawtooth NF, Fire Weather Zone 425 Middle Snake River Valley/Twin Falls BLM north of the Snake River, Fire Weather Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River, Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * IMPACTS...Frequent lightning will increase risk of new fire starts. * THUNDERSTORMS...Scattered coverage with frequent lightning. * OUTFLOW WINDS...Erratic winds 35 to 45 mph.
Instruction: 
A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies.
Area Description: 
Upper Snake River Valley/Idaho Falls BLM; Centennial Mountains and Snake River Range/Targhee NF; Caribou Range/Caribou NF; Sawtooth Range/Northern Sawtooth NF; Middle Snake River Valley/Twin Falls BLM north of the Snake River; Goose Creek and Raft River Valley/Southern Sawtooth NF/Twin Falls BLM south of the Snake River; East Salmon River Mountains/Salmon NF; Lemhi and Lost River Range/Challis NF
Forcast Office: 
NWS Pocatello ID
Sender: 
w-nws.webmaster@noaa.gov