FNUS75 KBYZ 301647
FWSBYZ

SPOT FORECAST FOR BULL...USFS - BZC
NATIONAL WEATHER SERVICE BILLINGS MT
1047 AM MDT TUE AUG 30 2011

FORECAST IS BASED ON REQUEST TIME OF 1007 MDT ON AUGUST 30.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

...ISOLATED THUNDERSTORMS POSSIBLE THIS AFTERNOON AND EVENING...
...CRITICAL WEATHER CONDITIONS WEDNESDAY WITH COLD FRONTAL PASSAGE...

WESTERLY FLOW ALOFT HAS WEAK DISTURBANCES MOVING THROUGH IT AND
THIS WILL KEEP THE AIRMASS UNSETTLED. EXPECT ISOLATED
THUNDERSTORM ACTIVITY THIS AFTERNOON AND EVENING BUT NOT AS EARLY
AS MONDAYS ACTIVITY. WITH LESS CLOUD COVER...IT WILL BE WARMER AND
DRIER WITH STRONGER UPVALLEY WINDS. WEDNESDAY A COLD FRONT WITH
THUNDERSTORM ACTIVITY WILL MOVE THROUGH THE FIRE AREA LATE
AFTERNOON OR EARLY EVENING. THE AIRMASS WILL BECOME UNSTABLE WITH
STRONGER WINDS AND HUMIDITY REACHING THE TEENS. EXPECT CRITICAL
FIRE WEATHER CONDITIONS DURING THE AFTERNOON AND EVENING DUE TO
THE COLD FRONTAL PASSAGE AND POSSIBLE THUNDERSTORM ACTIVITY
PRODUCING STRONG WIND GUSTS. BORSUM

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY. SCATTERED THUNDERSTORMS IN THE
                    AFTERNOON. SOME THUNDERSTORMS MAY PRODUCE GUSTY
                    WINDS IN THE AFTERNOON.
CWR.................17 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....79-84.
MIN HUMIDITY........19-24 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 9 TO 14 MPH. GUSTY AND ERRATIC WINDS
                    EXPECTED NEAR THUNDERSTORMS IN THE AFTERNOON.
 RIDGETOP...........SOUTHWEST 10 TO 20 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED THUNDERSTORMS IN THE
                    EVENING...THEN ISOLATED SHOWERS AND
                    THUNDERSTORMS OVERNIGHT. SOME THUNDERSTORMS MAY
                    PRODUCE GUSTY WINDS IN THE EVENING.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....39-44.
MAX HUMIDITY........83-88 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......BECOMING NORTH 4 TO 7 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........SOUTHWEST 15 TO 30 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................13 PERCENT.
LAL.................3...9 TO 15 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....72-77.
MIN HUMIDITY........17-22 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......SOUTH WINDS 11 TO 17 MPH. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS.
 RIDGETOP...........SOUTHWEST 20 TO 35 MPH.

$$
FORECASTER...BORSUM
REQUESTED BY...CRISTI HEANEY
TYPE OF REQUEST...WILDFIRE
.TAG 20110830.BULL_.01/BYZ