FNUS75 KTFX 072100
FWSTFX

SPOT FORECAST FOR RED SHALE...USFS
NATIONAL WEATHER SERVICE GREAT FALLS MT
300 PM MDT WED AUG 7 2013

FORECAST IS BASED ON IGNITION TIME OF 1550 MDT ON AUGUST 07.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...
A WEAK CANADIAN TROUGH IS MOVING THROUGH CENTRAL MONTANA AND THE
AIRMASS HAS BECOME UNSTABLE. AN ISOLATED THUNDERSTORM OR TWO IS
POSSIBLE THROUGH THE EARLY EVENING. MOST CONVECTIVE DEVELOPMENT
IS EXPECTED NORTH AND EAST OF THE BURN AREA HOWEVER SOME GUSTY
WINDS ARE POSSIBLE FROM THIS ACTIVITY. LIGHT NORTH WINDS
ASSOCIATED WITH THE TROUGH PASSAGE WILL SWITCH TO THE SOUTHEAST
AFTER MIDNIGHT. THE AIRMASS WILL BECOME UNSTABLE AGAIN
THURSDAY AFTERNOON AND ISOLATED THUNDERSTORMS ARE AGAIN
POSSIBLE...BUT MOST ACTIVITY WILL AGAIN REMAIN TO THE NORTH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY.
CWR.................5 PERCENT.
MIN TEMPERATURE.....40-45.
MAX HUMIDITY........80-90 PERCENT.
WIND (20 FT)........NORTH WINDS UP TO 5 MPH SHIFTING TO THE
                    SOUTHEAST AFTER MIDNIGHT.
RIDGE TOP WIND......WEST 10 TO 15 MPH.
MIXING HEIGHT.......500 FT AGL.
MIXING WINDS........WEST AROUND 5 MPH.
HAINES..............3 VERY LOW

.THURSDAY...

SKY/WEATHER.........MOSTLY SUNNY. SLIGHT CHANCE OF SHOWERS AND
                    THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....64-72.
MIN HUMIDITY........37-47 PERCENT.
WIND (20 FT)........EAST WINDS UP TO 5 MPH.
RIDGE TOP WIND......SOUTHWEST 5 TO 10 MPH.
MIXING HEIGHT.......5500 FT AGL.
MIXING WINDS........LIGHT WINDS.
HAINES..............2 VERY LOW

$$
FORECASTER...ZELZER
REQUESTED BY...GREAT FALLS DISPATCH
TYPE OF REQUEST...PRESCRIBED
.TAG 20130807.REDSH.02/TFX