Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
130 PM MDT Wed Aug 12 2026
...CRITICAL FIRE WEATHER CONDITIONS THURSDAY DUE TO SCATTERED
THUNDERSTORMS...
IDZ410-411-413-422-425-427-475-476-132100-
/O.NEW.KPIH.FW.W.0021.260813T1800Z-260814T0300Z/
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-
130 PM MDT Wed Aug 12 2026
...RED FLAG WARNING IN EFFECT FROM NOON TO 9 PM MDT THURSDAY FOR
SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 411, 413,
422, 425, 427, 475, AND 476...
The National Weather Service in Pocatello has issued a Red Flag
Warning for scattered thunderstorms, which is in effect from noon
to 9 PM MDT Thursday.
* 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.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
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.
&&
$$