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Red Flag Warning

Status

Event Extended (Area) Expired

Start Time

Thu 07/31/2025 04:00 PM EDT

End Time

Fri 08/01/2025 02:00 AM EDT

Significance

Warning

Impacts

High impact

Headline

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO MIDNIGHT MDT TONIGHT FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 422, 425, AND 427 AND FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 413...

Full Alert Message

URGENT - FIRE WEATHER MESSAGE National Weather Service Pocatello ID 925 AM MDT Thu Jul 31 2025 ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO MIDNIGHT MDT TONIGHT FOR SCATTERED THUNDERSTORMS FOR FIRE WEATHER ZONES 422, 425, AND 427 AND FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 413... ...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO MIDNIGHT MDT TONIGHT FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE WEATHER ZONES 410 AND 413... The National Weather Service in Pocatello has issued a Red Flag Warning for gusty winds and low relative humidity, which is in effect from 2 PM this afternoon to midnight MDT tonight. * AFFECTED AREA...Fire Weather Zone 410 Upper Snake River Valley/Idaho Falls BLM and Fire Weather Zone 413 Caribou Range/Caribou NF. * RELATIVE HUMIDITY...As low as 10 percent. * WINDS...Southwest 15 to 20 mph with gusts 25 to 35 mph. Gusty outflows up to 60 mph from isolated thunderstorms nearby. 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.

Technical Header

IDZ410-413-010600- /O.EXA.KPIH.FW.W.0010.250731T2000Z-250801T0600Z/ Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou NF- 925 AM MDT Thu Jul 31 2025