864
WWUS85 KBYZ 111805
RFWBYZ
URGENT - FIRE WEATHER MESSAGE
NATIONAL WEATHER SERVICE BILLINGS MT
1205 PM MDT MON MAY 11 2026
MTZ130-132-133-120215-
/O.CON.KBYZ.FW.W.0003.000000T0000Z-260512T0300Z/
NORTHERN ROSEBUD/NORTHERN TREASURE COUNTIES-CUSTER COUNTY-
SIOUX RANGER DISTRICT CUSTER NATIONAL FOREST-
1205 PM MDT MON MAY 11 2026
...RED FLAG WARNING REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING
FOR FIRE WEATHER ZONES 130, 132, AND 133...
* IMPACTS: LOW HUMIDITIES, UNSEASONABLY WARM TEMPERATURES, AND
STRONG GUSTY WINDS COULD CREATE ERRATIC FIRE BEHAVIOR.
* AFFECTED AREA: IN SOUTHEAST MT FIRE ZONES...130...132. IN
SOUTHEAST MT AND NORTHWEST SD FIRE ZONE...133.
THE MOST CRITICAL AREAS EXIST MAINLY ALONG AND NORTH OF
INTERSTATE 94 AND US HIGHWAY 12.
* COUNTIES AFFECTED: IN NORTHWEST SD...HARDING. IN SOUTHEAST
MT...CARTER...CUSTER...FALLON...ROSEBUD...TREASURE.
* WIND: NORTHWEST 15 TO 25 MPH WITH GUSTS TO 40 MPH.
* HUMIDITY: AS LOW AS 15 PERCENT.
* TEMPERATURES: UP TO 83 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.
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