FNUS75 KBYZ 271458
FWSBYZ

SPOT FORECAST FOR RESERVOIR FIRE...MEDICINE WHEEL RD
NATIONAL WEATHER SERVICE BILLINGS MT
858 AM MDT TUE SEP 27 2011

FORECAST IS BASED ON REQUEST TIME OF 0829 MDT ON SEPTEMBER 27.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
...COLD FRONT MOVING THROUGH THE FIRE SITE BY WEDNESDAY MORNING...

IT WILL BE DRY TODAY WITH MINIMUM RELATIVE HUMIDITY VALUES OF 15
TO 20 PERCENT. SOUTHWEST WINDS WILL GUST TO 20 MPH ON WEST FACING
ASPECTS THIS AFTERNOON. THE RELATIVE HUMIDITY WILL ONLY RECOVER TO
AROUND 40 PERCENT TONIGHT. WINDS ON THE RIDGETOPS AND THE EXPOSED
AREAS OF WEST ASPECTS WILL ALSO INCREASE OUT OF THE WEST TONIGHT.
A COLD FRONT WILL MOVE THROUGH THE FIRE SITE BY WEDNESDAY MORNING
AND RESULT IN COOLER TEMPERATURES AND SLIGHTLY HIGHER HUMIDITY ON
WEDNESDAY.


.TODAY...

SKY/WEATHER.........SUNNY THIS MORNING...BECOMING PARTLY
                    SUNNY THIS AFTERNOON.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....67-72.
MIN HUMIDITY........15-20 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTHWEST WINDS 8 TO 13 MPH.
                    AFTERNOON GUSTS TO 20 MPH.
 RIDGETOP...........WEST 10 TO 15 MPH.
MIXING HEIGHT.......5500 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 15 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....41-46.
MAX HUMIDITY........39-44 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......EAST WINDS 4 TO 7 MPH.
 RIDGETOP...........WEST 15 TO 25 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........WEST 10 TO 20 MPH.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....58-63.
MIN HUMIDITY........24-29 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 10 TO 20 MPH.
 RIDGETOP...........WEST 15 TO 30 MPH.
MIXING HEIGHT.......4900 FT AGL.
MIXING WINDS........WEST 10 TO 20 MPH.

$$
FORECASTER...SCHULTZ/CHAMBERS
REQUESTED BY...TODD LEGLER
TYPE OF REQUEST...WILDFIRE
.TAG 20110927.RESER.01/BYZ