Red Flag Warning
URGENT - FIRE WEATHER MESSAGE
National Weather Service Pocatello ID
1234 AM MDT Mon Jul 27 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 9 PM MDT
THIS EVENING FOR GUSTY WINDS AND LOW RELATIVE HUMIDITY FOR FIRE
WEATHER ZONES 475 AND 476...
IDZ475-476-280300-
/O.CON.KPIH.FW.W.0015.260727T1800Z-260728T0300Z/
East Salmon River Mountains/Salmon NF-
Lemhi and Lost River Range/Challis NF-
1234 AM MDT Mon Jul 27 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TODAY TO 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...Southwest 10 to 20 mph with gusts up to 30 mph. Locally
high gusts are possible due to virga.
* RELATIVE HUMIDITY...As low as 13 percent.
* IMPACTS...Wind and low humidity can lead to rapid spread of
fire and more intense fire in receptive fuels.
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.
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