FNUS75 KBYZ 251152
FWSBYZ

SPOT FORECAST FOR GILEAD...USFS
NATIONAL WEATHER SERVICE BILLINGS MT
552 AM MDT TUE SEP 25 2012

FORECAST IS BASED ON REQUEST TIME OF 0518 MDT ON SEPTEMBER 25.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A WEAK AREA OF LOW PRESSURE WILL BRING A MOSTLY CLOUDY SKY TODAY
THROUGH WEDNESDAY. THERE WILL ALSO BE A CHANCE OF ISOLATED SHOWERS
AND POSSIBLE ISOLATED AFTERNOON THUNDERSTORMS. PRECIPITATION
AMOUNTS WILL BE LIGHT WITH LESS THAN A TENTH OF AN INCH EXPECTED.
CLOUD COVER TODAY AND TOMORROW WILL BRING COOLER TEMPERATURES WITH
HIGHS IN THE MID 60S. MOIST AIR WILL BE MOVING INTO THE FIRE SITE
AND MINIMUM RH'S TODAY WILL BE IN THE LOWER 30 PERCENT RANGE WITH
LOWER 40S EXPECTED ON WEDNESDAY. GOOD RECOVERIES CAN BE EXPECTED
TONIGHT. WINDS AT RIDGE TOP LEVEL WILL BE LIGHT AS WELL AS NEAR
THE SURFACE. WINDS WILL BE BE TERRAIN INDUCED TODAY THROUGH
WEDNESDAY. LOOK FOR LIGHT UPSLOP/VALLEY WINDS TODAY AND WEDNESDAY
WITH DOWN SLOPE/VALLEYS WINDS AT NIGHT.

.TODAY...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE
                    MORNING...THEN ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....62-67.
MIN HUMIDITY........29-34 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......LIGHT DOWN SLOPE WINDS BECOMING UPSLOPE/VALLEY
                    AT 5 TO 10 MPH BY 9AM. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    AFTERNOON.
 RIDGETOP...........LIGHT WINDS.
MIXING HEIGHT.......5500 FT AGL.
MIXING WINDS........LIGHT WINDS.
HAINES INDEX........5.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY WITH ISOLATED RAIN SHOWERS.
CWR.................9 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....41-46.
MAX HUMIDITY........62-67 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......LIGHT UPSLOPE WIND BECOMING DOWN SLOPE/VALLEY AT 5
                    TO 10 MPH BY 7PM.
 RIDGETOP...........SOUTH 5 TO 10 MPH.
MIXING HEIGHT.......1800 FT AGL.
MIXING WINDS........SOUTH 5 TO 10 MPH.
HAINES INDEX........5.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY CLOUDY. ISOLATED RAIN SHOWERS IN THE
                    MORNING...THEN SCATTERED RAIN SHOWERS AND
                    ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CWR.................16 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MAX TEMPERATURE.....66-71.
MIN HUMIDITY........27-32 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......WIND BECOMING UPSLOPE/VALLEY AT 5 TO 10 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED
                    NEAR THUNDERSTORMS IN THE AFTERNOON.
 RIDGETOP...........SOUTH 5 TO 15 MPH.
MIXING HEIGHT.......5500 FT AGL.
MIXING WINDS........SOUTH 5 TO 15 MPH.
HAINES INDEX........5.

$$
FORECASTER...RICHMOND
REQUESTED BY...KEVIN HILLARD
TYPE OF REQUEST...WILDFIRE
.TAG 20120925.GILEA.01/BYZ