FNUS75 KGJT 150145
FWSGJT

SPOT FORECAST FOR RATHOLE...BLM/VERNAL
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
745 PM MDT FRI AUG 14 2009

FORECAST IS BASED ON REQUEST TIME OF 1848 MDT ON AUGUST 14.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...CANNOT RULE OUT SOME NIGHTTIME STORMS TONIGHT DUE TO
GOOD MOISTURE...MARGINAL INSTABILITY...AND COLD FRONT CURRENTLY
ALONG A LINE FROM NORTH OF ELY NV TO SOUTH OF SALT LAKE CITY.
THE SURFACE-BASED INVERSION WILL BE WEAK TONIGHT AND WILL BREAK
IF STORMS OR SHOWERS FORM NEARBY. SOUTHWEST WINDS WILL MIX DOWN
EARLY SATURDAY MORNING AND STRENGTHEN IN THE AFTERNOON AS THE FRONT
APPROACHES. EXPECT FRONTAL PASSAGE BETWEEN 1500-1600 WITH WIDESPREAD
SHOWERS AND THUNDERSTORMS AND GUSTY WINDS SHIFTING TO NORTHWEST.
SOME OF THESE STORMS COULD BE STRONG WITH WIND GUSTS TO 50 MPH
SMALL HAIL AND HEAVY RAIN. DRIER AND COOLER AIR WILL PREVAIL SUNDAY
AND MONDAY...WITH DRY CONDITIONS AND A WARMING TREND TUESDAY AND
WEDNESDAY.

.TONIGHT...

SKY/WEATHER.........PARTLY CLOUDY WITH ISOLATED SHOWERS AND
                    THUNDERSTORMS POSSIBLE AFTER 2200.
MIN TEMPERATURE.....51-56 F.
MAX HUMIDITY........48-53%.
20-FOOT WINDS.......SOUTH WINDS 12 MPH.
                    GUSTY ERRATIC WINDS NEAR THUNDERSTORMS.
HAINES INDEX........3 VERY LOW.
LAL.................1 UNTIL 2200...THEN 2.

.SATURDAY...

SKY/WEATHER.........PARTLY CLOUDY (40-50%). ISOLATED SHOWERS AND
                    THUNDERSTORMS IN THE MORNING. NUMEROUS SHOWERS
                    AND THUNDERSTORMS IN THE AFTERNOON
MAX TEMPERATURE.....69-74 F.
MIN HUMIDITY........30-35%.
20-FOOT WINDS.......BREEZY. SOUTHWEST 10-15 MPH INCREASING TO 20 MPH
                    BY 1200. GUSTS UP TO 35 MPH. GUSTY ERRATIC
                    NEAR AFTERNOON THUNDERSTORMS.
                    AFTER FRONTAL PASSAGE AT AROUND 1600...NORTHWEST
                    10-15 MPH WITH GUSTS TO 25 MPH...DIMINISHING
                    TO 5-10 MPH BY 1900.
HAINES INDEX........3 VERY LOW.
LAL.................2 UNTIL 1400...THEN 4.

$$
FORECASTER...JOE RAMEY
REQUESTED BY...DAVE INGRAM
TYPE OF REQUEST...WILDFIRE
.TAG 20090814.RATHO.01/GJT