FNUS75 KTFX 261418
FWSTFX

SPOT FORECAST FOR SLATE LAKE...FOREST SERVICE
NATIONAL WEATHER SERVICE GREAT FALLS MT
818 AM MDT FRI AUG 26 2011

FORECAST IS BASED ON REQUEST TIME OF 0744 MDT ON AUGUST 26.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...

A HIGH PRESSURE RIDGE WILL CONTINUE TO KEEP THE AIRMASS VERY WARM
AND GENERALLY DRY ALTHOUGH IT WILL BECOME QUITE UNSTABLE THIS
AFTERNOON. A WEAK SHORTWAVE WILL APPROACH THE REGION THIS
AFTERNOON AS WELL AND THIS WILL ENHANCE THE CHANCE OF
THUNDERSTORMS. INCREASED CLOUDS WILL DEVELOP AROUND NOON WITH
THUNDERSTORM DEVELOPMENT BEGINNING AFTER 1500 AND ENDING EARLY
EVENING. THESE SHOULD BE HIGH BASED THUNDERSTORMS. MOISTURE WILL
BE LACKING AND WETTING RAIN WILL BE LIMITED. SURFACE WINDS WILL
BE LIGHT AND TERRAIN DRIVEN ALTHOUGH STRONG AND GUSTY DOWNDRAFT
WINDS SHOULD BE EXPECTED FROM THUNDERSTORMS.

.TODAY...

SKY/WEATHER.........MOSTLY SUNNY IN THE MORNING. BUILDING CUMULUS
                    ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CWR.................10 PERCENT.
MAX TEMPERATURE.....77-82.
MIN HUMIDITY........25-30 PERCENT.
WIND (20 FT)........UPSLOPE/UPVALLEY 3-5 MPH. GUSTY DOWNDRAFT WINDS
                    NEAR AFTERNOON THUNDERSTORMS.
RIDGE TOP WIND......SOUTHWEST AROUND 10 MPH.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY. SCATTERED SHOWERS AND
                    THUNDERSTORMS IN THE EVENING.
CWR.................10 PERCENT.
MIN TEMPERATURE.....53-58.
MAX HUMIDITY........66-71 PERCENT.
WIND (20 FT)........NORTHWEST WINDS 5 TO 10 MPH BECOMING VARIABLE
                    AFTER MIDNIGHT.
RIDGE TOP WIND......NORTHWEST 15-20 MPH.

.SATURDAY...

SKY/WEATHER.........MOSTLY SUNNY.
CWR.................10 PERCENT.
MAX TEMPERATURE.....81-86.
MIN HUMIDITY........20-25 PERCENT.
WIND (20 FT)........WEST WINDS AROUND 5 MPH INCREASING TO 10 TO 15
                    MPH IN THE AFTERNOON.
RIDGE TOP WIND......SOUTHWEST 10-15 MPH WITH AFTERNOON GUSTS TO 25 MPH.

$$
FORECASTER...ZELZER
REQUESTED BY...SPENCER GILCHRIST
TYPE OF REQUEST...WILDFIRE
.TAG 20110826.SLATE.01/TFX