FNUS75 KTFX 191501
FWSTFX

SPOT FORECAST FOR CLANCY RX...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
901 AM MDT TUE MAY 19 2009

FORECAST IS BASED ON IGNITION TIME OF 0845 MDT ON MAY 19.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

...COLD FRONT TO PASS THROUGH THE AREA LATE THIS AFTERNOON WITH A
   WIND SHIFT TO THE WEST AND POSSIBLE STRONG THUNDERSTORMS...

.DISCUSSION...
A COLD FRONT WILL APPROACH THE REGION TODAY AND IS EXPECTED TO MOVE
THROUGH THE BURN AREA BETWEEN 1600 AND 1900 THIS EVENING. GUSTY
SOUTHWEST WINDS WILL DEVELOP BY THIS AFTERNOON AHEAD OF THE FRONT
WITH WINDS SHIFTING TO THE WEST AND REMAINING GUSTY THROUGH THIS
EVENING. SCATTERED THUNDERSTORMS ARE EXPECTED TO DEVELOP ALONG AND
AHEAD OF THE FRONT THIS AFTERNOON...SOME OF WHICH MAY BE STRONG AND
ACCOMPANIED BY GUSTY WINDS IN EXCESS OF 50 MPH AND SMALL HAIL. WINDS
WILL GRADUALLY DIMINISH AFTER SUNSET THIS EVENING...WITH ONLY A FEW
LINGERING LIGHT SHOWERS POSSIBLE AFTER MIDNIGHT.

.TODAY...

SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
                    THUNDERSTORMS DEVELOPING IN THE AFTERNOON.
CWR.................20 PERCENT.
MAX TEMPERATURE.....74-79.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........UPSLOPE WINDS 3 TO 5 MPH...BECOMING SOUTHWEST
                    AT 8 TO 12 MPH WITH GUSTS TO AROUND 18 MPH EARLY
                    IN THE AFTERNOON.
RIDGE TOP WIND......SOUTHWEST 8 TO 12 MPH INCREASING TO 12 TO 18 MPH
                    WITH GUSTS TO AROUND 25 MPH IN THE AFTERNOON.
MIXING HEIGHT.......8000 FT AGL.
MIXING WINDS........INCREASING TO SOUTHWEST 15 TO 20 MPH.

.TONIGHT...

SKY/WEATHER.........MOSTLY CLOUDY. CHANCE OF THUNDERSTORMS IN THE
                    EVENING...THEN A SLIGHT CHANCE OF RAIN SHOWERS
                    AFTER MIDNIGHT.
CWR.................20 PERCENT.
MIN TEMPERATURE.....38-43.
MAX HUMIDITY........70-80 PERCENT.
WIND (20 FT)........WEST WINDS 10 TO 20 MPH IN THE
                    EVENING...DECREASING TO 6 TO 12 MPH AFTER
                    MIDNIGHT.
RIDGE TOP WIND......WEST WINDS 15 TO 25 MPH IN THE
                    EVENING...DECREASING TO 10 TO 15 MPH AFTER
                    MIDNIGHT
MIXING HEIGHT.......LESS THAN 1000 FT AGL.
MIXING WINDS........WEST AROUND 15 MPH.

.WEDNESDAY...

SKY/WEATHER.........MOSTLY SUNNY...BECOMING PARTLY CLOUDY IN THE
                    AFTERNOON.
CWR.................5 PERCENT.
MAX TEMPERATURE.....56-61.
MIN HUMIDITY........23-28 PERCENT.
WIND (20 FT)........WEST WINDS 6 TO 12 MPH.
RIDGE TOP WIND......WEST WINDS 10 TO 15 MPH.
MIXING HEIGHT.......8000 FT AGL.
MIXING WINDS........WEST AROUND 15 MPH.

$$
FORECASTER...HOENISCH
REQUESTED BY...ANN
TYPE OF REQUEST...PRESCRIBED
.TAG 20090519.CLANC.01/TFX