155
WWUS85 KBYZ 010656
RFWBYZ
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
1256 AM MDT SAT AUG 1 2026
MTZ123>128-020700-
/O.CON.KBYZ.FW.W.0006.260801T2000Z-260803T0300Z/
GALLATIN NATIONAL FOREST-WHEATLAND COUNTY/SWEET GRASS COUNTY-
STILLWATER COUNTY-BEARTOOTH RANGER DISTRICT CUSTER NATIONAL FOREST-
GOLDEN VALLEY COUNTY/MUSSELSHELL COUNTY-YELLOWSTONE COUNTY-
1256 AM MDT SAT AUG 1 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM 2 PM THIS AFTERNOON TO
9 PM MDT SUNDAY...
* IMPACTS: LOW HUMIDITIES, HOT TEMPERATURES, GUSTY WINDS, AND WIND
SHIFT WITH A COLD FRONT WILL CREATE ERRATIC FIRE BEHAVIOR.
* AFFECTED AREA:
IN SOUTH CENTRAL MT FIRE ZONES...123...124...125...126...127
128.
* COUNTIES AFFECTED:
IN CENTRAL MT...GOLDEN VALLEY...MUSSELSHELL...WHEATLAND.
IN SOUTH CENTRAL MT...CARBON...PARK...STILLWATER...SWEET GRASS
YELLOWSTONE.
IN SOUTHWEST MT...GALLATIN.
* WIND: SOUTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH SATURDAY,
BECOMING NORTHWEST 10 TO 20 MPH SUNDAY.
* HUMIDITY: AS LOW AS 5 PERCENT SATURDAY, AS LOW AS 10 PERCENT
SUNDAY.
* TEMPERATURES: UP TO 105 DEGREES SATURDAY, UP TO 98 DEGREES
SUNDAY.
* COLD FRONT: A COLD FRONT MOVES THROUGH SATURDAY NIGHT SHIFTING
WINDS FROM THE SOUTHWEST TO THE NORTHWEST.
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.
MTZ129>132-WYZ274-284-020700-
/O.CON.KBYZ.FW.W.0006.260802T0600Z-260803T0300Z/
CROW INDIAN RESERVATION/BIGHORN CANYON REC AREA-
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-
NORTHERN CHEYENNE INDIAN RESERVATION/ASHLAND RANGER DISTRICT
CUSTER NATL FOREST-CUSTER COUNTY-SHERIDAN COUNTY-
BIGHORN NATIONAL FOREST-
1256 AM MDT SAT AUG 1 2026
...RED FLAG WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO
9 PM MDT SUNDAY...
* IMPACTS: LOW HUMIDITIES, HOT TEMPERATURES, STRONG GUSTY WINDS,
AND WIND SHIFT WITH A COLD FRONT WILL CREATE ERRATIC FIRE
BEHAVIOR.
* AFFECTED AREA:
IN NORTH CENTRAL WY FIRE ZONES...274...284.
IN SOUTH CENTRAL MT FIRE ZONE...129.
IN SOUTHEAST MT FIRE ZONES...130...131...132.
* COUNTIES AFFECTED:
IN NORTH CENTRAL WY...BIG HORN...JOHNSON...SHERIDAN...WASHAKIE.
IN SOUTH CENTRAL MT...BIG HORN...CARBON...YELLOWSTONE.
IN SOUTHEAST MT...CUSTER...POWDER RIVER...ROSEBUD...TREASURE.
* COLD FRONT: A COLD FRONT MOVES THROUGH SATURDAY NIGHT SHIFTING
WINDS TO THE NORTHWEST AND INCREASING WIND SPEEDS.
* WIND: NORTHWEST 10 TO 20 MPH WITH GUSTS UP TO 35 MPH BEHIND THE
FRONT.
* HUMIDITY: AS LOW AS 12 PERCENT.
* TEMPERATURES: UP TO 98 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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