194
WWUS85 KPIH 010815
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
215 AM MDT Fri Aug 1 2025

IDZ410-413-425-427-020400-
/O.NEW.KPIH.FW.W.0011.250801T2000Z-250802T0400Z/
Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou 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-
215 AM MDT Fri Aug 1 2025

...RED FLAG WARNING IN EFFECT FROM 2 PM THIS AFTERNOON TO 10 PM
MDT THIS EVENING FOR GUSTY WINDS, LOW RELATIVE HUMIDITY, AND
ISOLATED MOUNTAIN THUNDERSTORMS FOR FIRE WEATHER ZONES 410, 413,
425, AND 427...

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River
  Valley/Idaho Falls BLM, Fire Weather Zone 413 Caribou
  Range/Caribou NF, Fire Weather Zone 425 Middle Snake River
  Valley/Twin Falls BLM north of the Snake River and Fire Weather
  Zone 427 Goose Creek and Raft River Valley/Southern Sawtooth
  NF/Twin Falls BLM south of the Snake River.

* WINDS...West/southwest 10 to 25 mph with gusts of 25 to 40 mph.

* RELATIVE HUMIDITY...As low as 10 percent.

* THUNDERSTORMS...15 to 25 percent coverage in the mountains.

* OUTFLOW WINDS...A dry low level environment will promote
  stronger storms capable of producing wind gusts up to 50 mph.

* IMPACTS...Critical fire weather conditions are expected this
  afternoon and evening. Lightning may generate new fire starts.
  Any new fire starts or existing fires may spread rapidly.

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.

&&

$$