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Home Return to list Fire Weather Warning 0018 Issued by the Pocatello Forecast Office
Action: New Issued At: 2026-08-07 13:33:52 209 WWUS85 KPIH 071833 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 1233 PM MDT Fri Aug 7 2026 ...GUSTY WINDS AND LOW HUMIDITY EXPECTED THIS WEEKEND... IDZ475-476-082100- /O.NEW.KPIH.FW.W.0018.260808T1900Z-260809T0300Z/ East Salmon River Mountains/Salmon NF- Lemhi and Lost River Range/Challis NF- 1233 PM MDT Fri Aug 7 2026 ...RED FLAG WARNING IN EFFECT FROM 1 PM TO 9 PM MDT SATURDAY FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 475 AND 476... The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 1 PM to 9 PM MDT Saturday. * AFFECTED AREA...Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 10 percent. * IMPACTS... 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. && $$ Action: Continued Issued At: 2026-08-08 12:40:50 484 WWUS85 KPIH 081740 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 1140 AM MDT Sat Aug 8 2026 ...GUSTY WINDS AND VERY LOW HUMIDITY THIS WEEKEND... IDZ475-476-090300- /O.CON.KPIH.FW.W.0018.260808T1900Z-260809T0300Z/ East Salmon River Mountains/Salmon NF- Lemhi and Lost River Range/Challis NF- 1140 AM MDT Sat Aug 8 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 475 AND 476... * AFFECTED AREA...Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS... PRECAUTIONARY/PREPAREDNESS ACTIONS... A Red Flag Warning means that critical fire weather conditions are either occurring now, or will shortly based on these criteria for Southeastern Idaho: - Relative humidity at or below 15 percent and wind gusts of at least 25 mph in the mountains, or 30 mph in the Snake Plain. - Thunderstorm coverage of 25 percent, without specific rainfall criteria. - Other high impact events deemed critical by the National Weather Service and area fire management agencies. && $$ Action: Continued Issued At: 2026-08-08 13:28:22 891 WWUS85 KPIH 081827 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 1227 PM MDT Sat Aug 8 2026 ...GUSTY WINDS AND VERY LOW HUMIDITY THIS WEEKEND... IDZ475-476-090300- /O.CON.KPIH.FW.W.0018.260808T1900Z-260809T0300Z/ East Salmon River Mountains/Salmon NF- Lemhi and Lost River Range/Challis NF- 1227 PM MDT Sat Aug 8 2026 ...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 475 AND 476... * AFFECTED AREA...Fire Weather Zone 475 East Salmon River Mountains/Salmon NF and Fire Weather Zone 476 Lemhi and Lost River Range/Challis NF. * WINDS...West 10 to 20 mph with gusts up to 30 mph. * RELATIVE HUMIDITY...As low as 12 percent. * IMPACTS...Wind and low humidity can lead to rapid spread of fire. 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. && $$ Action: Expired Issued At: 2026-08-08 21:47:36 770 WWUS85 KPIH 090247 RFWPIH URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 847 PM MDT Sat Aug 8 2026 IDZ475-476-090400- /O.EXP.KPIH.FW.W.0018.000000T0000Z-260809T0300Z/ East Salmon River Mountains/Salmon NF- Lemhi and Lost River Range/Challis NF- 847 PM MDT Sat Aug 8 2026 ...RED FLAG WARNING WILL EXPIRE AT 9 PM MDT THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 475 AND 476... Conditions no longer are meeting Red Flag conditions. The Warning has been allowed to expire. $$ | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||