577
WWUS85 KBYZ 221641
RFWBYZ
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
1041 AM MDT WED APR 22 2026
MTZ130>133-230300-
/O.NEW.KBYZ.FW.W.0002.260422T1641Z-260423T0300Z/
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-CUSTER COUNTY-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
1041 AM MDT WED APR 22 2026
..RED FLAG WARNING IN EFFECT UNTIL 9 PM MDT THIS EVENING
THE NATIONAL WEATHER SERVICE IN BILLINGS HAS ISSUED A RED FLAG
WARNING...WHICH IS IN EFFECT UNTIL 9 PM MDT THIS EVENING.
* IMPACTS: LOW HUMIDITIES, UNSEASONABLY WARM TEMPERATURES, STRONG
GUSTY WINDS, AND WIND SHIFT WITH A COLD FRONT COULD CREATE
ERRATIC FIRE BEHAVIOR AND THE POTENTIAL FOR NEW FIRE STARTS.
* AFFECTED AREA:
IN SOUTHEAST MT FIRE ZONES...130...131...132.
IN SOUTHEAST MT AND NORTHWEST SD FIRE ZONE...133.
* COUNTIES AFFECTED:
IN NORTHWEST SD...HARDING.
IN SOUTH CENTRAL MT...BIG HORN.
IN SOUTHEAST MT...CARTER...CUSTER...FALLON...POWDER RIVER
ROSEBUD...TREASURE.
* COLD FRONT: SOUTHWEST WINDS TODAY WILL SHIFT TO THE WEST THIS
EVENING, THEN NORTHWEST TONIGHT.
* SHOWER ACTIVITY: ISOLATED SHOWERS THIS AFTERNOON AND EVENING MAY
CAUSE GUSTY AND ERRATIC WINDS.
* WIND: SOUTHWEST 15 TO 30 MPH WITH GUSTS UP TO 45 MPH.
* HUMIDITY: AS LOW AS 12 PERCENT.
* TEMPERATURES: UP TO 87 DEGREES.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
A RED FLAG WARNING MEANS THAT CRITICAL FIRE WEATHER CONDITIONS ARE
EITHER OCCURRING NOW, OR WILL SHORTLY. A COMBINATION OF STRONG
WINDS, LOW RELATIVE HUMIDITY, AND WARM TEMPERATURES CAN CONTRIBUTE
TO EXTREME FIRE BEHAVIOR.
HTTP://WEATHER.GOV/BILLINGS
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