077
WWUS85 KBYZ 040317
RFWBYZ
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
917 PM MDT THU SEP 3 2026
MTZ129-WYZ284-050300-
/O.EXP.KBYZ.FW.W.0010.000000T0000Z-260904T0300Z/
/O.CON.KBYZ.FW.W.0011.260904T1500Z-260905T0300Z/
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
BIGHORN NATIONAL FOREST-
917 PM MDT THU SEP 3 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT
FRIDAY...
..RED FLAG WARNING TODAY HAS EXPIRED
* IMPACTS: LOW HUMIDITIES, UNSEASONABLY WARM TEMPERATURES, AND
STRONG GUSTY WINDS WILL CREATE ERRATIC FIRE BEHAVIOR.
* AFFECTED AREA:
IN NORTH CENTRAL WY FIRE ZONE...284.
IN SOUTH CENTRAL MT FIRE ZONE...129.
* COUNTIES AFFECTED:
IN NORTH CENTRAL WY...BIG HORN...JOHNSON...SHERIDAN...WASHAKIE.
IN SOUTH CENTRAL MT...BIG HORN...CARBON...YELLOWSTONE.
* WIND: SOUTH 10 TO 20 MPH WITH GUSTS 25 TO 35 MPH.
* HUMIDITY: AS LOW AS 10 PERCENT.
* ADDITIONAL DETAILS: THE WORST CONDITIONS ARE EXPECTED ACROSS
THE LOWER ELEVATIONS.
* TEMPERATURES: UP TO 96.
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.
MTZ123>128-130-040430-
/O.EXP.KBYZ.FW.W.0010.000000T0000Z-260904T0300Z/
GALLATIN NATIONAL FOREST-WHEATLAND COUNTY/SWEET GRASS COUNTY-
STILLWATER COUNTY-BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-YELLOWSTONE COUNTY-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
917 PM MDT THU SEP 3 2026
..RED FLAG WARNING HAS EXPIRED
FIRE WEATHER CONDITIONS REMAIN ELEVATED FRIDAY BUT THE PERIOD OF
CRITICAL FIRE WEATHER CONDITIONS HAS ENDED.
MTZ131>133-WYZ274-050300-
/O.CON.KBYZ.FW.W.0011.260904T1500Z-260905T0300Z/
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-CUSTER COUNTY-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-SHERIDAN COUNTY-
917 PM MDT THU SEP 3 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM 9 AM TO 9 PM MDT
FRIDAY...
* IMPACTS: LOW HUMIDITIES, UNSEASONABLY WARM TEMPERATURES, AND
STRONG GUSTY WINDS WILL CREATE ERRATIC FIRE BEHAVIOR.
* AFFECTED AREA:
IN NORTH CENTRAL WY FIRE ZONE...274.
IN SOUTHEAST MT FIRE ZONES...131...132.
IN SOUTHEAST MT AND NORTHWEST SD FIRE ZONE...133.
* COUNTIES AFFECTED:
IN NORTH CENTRAL WY...SHERIDAN.
IN NORTHWEST SD...HARDING.
IN SOUTH CENTRAL MT...BIG HORN.
IN SOUTHEAST MT...CARTER...CUSTER...FALLON...POWDER RIVER
ROSEBUD...TREASURE.
* WIND: SOUTH 10 TO 20 MPH WITH GUSTS 25 TO 35 MPH.
* HUMIDITY: AS LOW AS 10 PERCENT.
* TEMPERATURES: UP TO 98.
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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