615
WWUS85 KBYZ 100523
RFWBYZ
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
1123 PM MDT WED SEP 9 2026
MTZ123-124-127-110200-
/O.CON.KBYZ.FW.W.0012.260910T1800Z-260911T0200Z/
GALLATIN NATIONAL FOREST-WHEATLAND COUNTY/SWEET GRASS COUNTY-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-
1123 PM MDT WED SEP 9 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT
THURSDAY...
* IMPACTS: LOW HUMIDITIES, UNSEASONABLY WARM TEMPERATURES, AND STRONG
GUSTY WINDS, WILL CREATE ERRATIC FIRE BEHAVIOR.
* AFFECTED AREA:
IN SOUTH CENTRAL MT FIRE ZONES...123...124...127.
* COUNTIES AFFECTED:
IN CENTRAL MT...GOLDEN VALLEY...MUSSELSHELL...WHEATLAND.
IN SOUTH CENTRAL MT...PARK...SWEET GRASS.
IN SOUTHWEST MT...GALLATIN.
* WIND: WEST 15 TO 25 MPH WITH GUSTS UP TO 40 MPH.
* HUMIDITY: AS LOW AS 10 PERCENT.
* TEMPERATURES: HIGHS IN THE MID TO UPPER 80S.
* ADDITIONAL DETAILS: THE WORST CONDITIONS ARE EXPECTED ACROSS
LOWER ELEVATIONS THAT HAVE RECEIVED LITTLE PRECIPITATION IN THE
PAST WEEK.
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.
MTZ133-110200-
/O.CON.KBYZ.FW.W.0012.260910T1800Z-260911T0200Z/
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
1123 PM MDT WED SEP 9 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM NOON TO 8 PM MDT
THURSDAY...
* IMPACTS: LOW HUMIDITIES, UNSEASONABLY WARM TEMPERATURES, AND
STRONG GUSTY WINDS, WILL CREATE ERRATIC FIRE BEHAVIOR.
* AFFECTED AREA:
IN SOUTHEAST MT AND NORTHWEST SD FIRE ZONE...133.
* COUNTIES AFFECTED:
IN NORTHWEST SD...HARDING.
IN SOUTHEAST MT...CARTER...FALLON.
* WIND: WEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH.
* HUMIDITY: AS LOW AS 12 PERCENT.
* TEMPERATURES: UP TO 90.
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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