WWUS85 KPIH 201313

RFWPIH



URGENT - FIRE WEATHER MESSAGE

National Weather Service Pocatello ID

713 AM MDT Sat Jun 20 2026



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING

FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 413, 422,

427, 475, AND 476...



IDZ410-413-422-427-475-476-210300-

/O.CON.KPIH.FW.W.0004.000000T0000Z-260621T0300Z/

Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou NF-

Sawtooth Range/Northern Sawtooth NF-

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-

713 AM MDT Sat Jun 20 2026



...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING

FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 413, 422,

427, 475, AND 476...



* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River 

  Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou 

  Range/Caribou NF, Fire Weather Zone 422 Sawtooth 

  Range/Northern Sawtooth NF, 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...Critical fire weather conditions are expected today. 

  Lightning may generate new fire starts. Any new fire starts or 

  existing fires may spread rapidly.



* THUNDERSTORMS...25 to 45 percent coverage.



* OUTFLOW WINDS...Stronger storms will be capable of producing 

  wind gusts up to 55 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.



&&



$$