FNUS75 KBYZ 121351
FWSBYZ

SPOT FORECAST FOR CASTLE ROCK SHC HFR...BIA, CROW AGENCY
NATIONAL WEATHER SERVICE BILLINGS MT
751 AM MDT TUE APR 12 2011

FORECAST IS BASED ON IGNITION TIME OF 1100 MDT ON APRIL 12.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
NORTHWEST WINDS WILL SHIFT OUT OF THE SOUTHEAST THIS AFTERNOON AS
AREA OF HIGH PRESSURE NORTH OF THE BURN SITE MOVES EAST. SCATTERED
SHOWERS AND VIRGA ACROSS THE AREA WILL CAUSE ERRATIC WINDS WITH GUSTS
OVER 20 MPH AT TIMES DURING THE DAY. LEACH/BORSUM

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. SCATTERED RAIN SHOWERS IN THE
                    MORNING...THEN ISOLATED RAIN SHOWERS IN THE
                    AFTERNOON.
CWR.................10 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....50-55.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST SHIFTING TO SOUTHEAST THIS
                    AFTERNOON AT 5 TO 15 MPH.
 RIDGETOP...........NORTHWEST 10 TO 20 MPH SHIFTING TO SOUTHEAST
                    THIS AFTERNOON AND BECOMING 5 TO 15 MPH.
MIXING HEIGHT.......5000 FT AGL.
MIXING WINDS........NORTHWEST 15 TO 25 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE
                    EVENING...THEN ISOLATED RAIN SHOWERS AND SNOW
                    SHOWERS OVERNIGHT.
CWR.................10 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....28-33.
MAX HUMIDITY........85-90 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHEAST WINDS 5 TO 15 MPH.
 RIDGETOP...........SOUTHEAST 10 TO 20 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........SOUTHEAST 10 TO 20 MPH.

.WEDNESDAY...

SKY/WEATHER.........PARTLY SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....53-58.
MIN HUMIDITY........35-40 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......EAST WINDS 5 TO 15 MPH.
 RIDGETOP...........SOUTHEAST 15 TO 25 MPH.
MIXING HEIGHT.......6600 FT AGL.
MIXING WINDS........SOUTHEAST 20 TO 30 MPH.

$$
FORECASTER...LEACH/BORSUM
REQUESTED BY...BRYCE ROGERS
TYPE OF REQUEST...PRESCRIBED
.TAG 20110412.CASTL.01/BYZ