498
WWUS85 KPIH 032025
RFWPIH

URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
225 PM MDT Sun Aug 3 2025

IDZ410-413-041030-
/O.NEW.KPIH.FW.W.0012.250804T2000Z-250805T0300Z/
Upper Snake River Valley/Idaho Falls BLM-Caribou Range/Caribou NF-
225 PM MDT Sun Aug 3 2025

...RED FLAG WARNING IN EFFECT FROM 2 PM TO 9 PM MDT MONDAY FOR
GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR IDAHO 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 to 9 PM MDT Monday.

* AFFECTED AREA...Fire Weather Zone 410 Upper Snake River
  Valley/Idaho Falls BLM and Fire Weather Zone 413 Caribou
  Range/Caribou NF.

* WINDS...Southwest 10 to 20 mph with gusts up to 30 mph.

* RELATIVE HUMIDITY...As low as 13 percent.

* IMPACTS...The combination of gusty winds and low humidity with
  critically dry fuels may result in extreme fire behavior.

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.

&&

$$