FNUS75 KBYZ 032155
FWSBYZ

SPOT FORECAST FOR CHALKY...IMT
NATIONAL WEATHER SERVICE BILLINGS MT
355 PM MDT FRI AUG 3 2012

FORECAST IS BASED ON REQUEST TIME OF 1600 MDT ON AUGUST 03.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A FEW SHOWERS AND THUNDERSTORMS WILL BE POSSIBLE THIS EVENING
OVER THE FIRE DUE TO A WEATHER DISTURBANCE IN THE UPPER ATMOSPHERE.
WINDS WILL BE GUSTY AND ERRATIC NEAR THUNDERSTORMS. OTHERWISE...GUSTY
NORTHWEST WINDS WILL DIMINISH TO WEST AT 5 TO 15 MPH LATE THIS EVENING.
HIGH PRESSURE...WITH WARMER AND DRIER WEATHER...WILL RETURN TO THE FIRE
SATURDAY AND CONTINUE SATURDAY NIGHT. EXPECT NORTHWEST WINDS AT 5 TO
15 MPH SATURDAY...BECOMING NORTH IN THE AFTERNOON. LIGHT NORTH WINDS
SATURDAY EVENING WILL BECOMING SOUTHEAST OVERNIGHT.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING.
CWR.................5 PERCENT.
LAL.................2...1 TO 8 STRIKES/15 MIN/CELL.
MIN TEMPERATURE.....52-57.
MAX HUMIDITY........51-56 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 15 TO 25 MPH...DIMINISHING TO
                    WEST 5 TO 15 MPH BY MIDNIGHT MDT. GUSTY AND ERRATIC
                    WINDS EXPECTED NEAR THUNDERSTORMS IN THE
                    EVENING.
 RIDGETOP...........NORTHWEST 15 TO 25 MPH.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........NORTHWEST 15 TO 30 MPH.

.SATURDAY...

SKY/WEATHER.........SUNNY.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MAX TEMPERATURE.....74-79.
MIN HUMIDITY........22-27 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTHWEST WINDS 5 TO 15 MPH...BECOMING NORTH IN
                    THE AFTERNOON.
 RIDGETOP...........NORTHWEST 10 TO 20 MPH.
MIXING HEIGHT.......5900 FT AGL.
MIXING WINDS........NORTHWEST 15 TO 30 MPH.

.SATURDAY NIGHT...

SKY/WEATHER.........MOSTLY CLEAR.
CWR.................0 PERCENT.
LAL.................1...NO THUNDERSTORMS.
MIN TEMPERATURE.....54-59.
MAX HUMIDITY........51-56 PERCENT.
WIND (20 FT)........
 SLOPE/VALLEY.......NORTH WINDS 5 TO 10 MPH IN THE EVENING
                    SHIFTING TO THE SOUTHEAST OVERNIGHT.
 RIDGETOP...........SOUTHEAST 5 TO 15 MPH.
MIXING HEIGHT.......300 FT AGL.
MIXING WINDS........SOUTHWEST 5 TO 10 MPH.

$$
FORECASTER...ARTHUR
REQUESTED BY...MARK HALE
TYPE OF REQUEST...WILDFIRE
.TAG 20120803.CHALK.02/BYZ