FNUS75 KGJT 091052
FWSGJT

SPOT FORECAST FOR STORMVEX - AM...NWS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
452 AM MDT SAT APR 9 2011

FORECAST IS BASED ON IGNITION TIME OF 0430 MDT ON APRIL 09.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A WINTER WEATHER ADVISORY HAS BEEN ISSUED FOR THE
PARK RANGE FROM 6 PM TODAY THOUGH MIDNIGHT SUNDAY. EXPECT 6 TO 12
INCHES STORM TOTAL SNOWFALL WITH THE HEAVIEST SNOWFALL OCCURRING
TONIGHT INTO SUNDAY MORNING.

THE UPPER LOW WAS IN SOUTHERN CALIFORNIA THIS MORNING. BUT IT WILL
BEGIN TO LIFT NORTHEAST THROUGH THE GREAT BASIN TODAY AND TRACK OVER
THE NORTHERN PARK RANGE EARLY SUNDAY MORNING. AN ASSOCIATED COLD FRONT
WAS BETWEEN VERNAL AND CRAIG BEFORE SUNRISE AND WILL WORK OVER THE
STUDY SITE TODAY. GUSTY WINDS...INCREASING SNOW SHOWERS...AND EVEN
ISOLATED THUNDERSNOW ARE EXPECTED ALONG AND BEHIND THE FRONT. COLD
UNSTABLE AIR POURS OVER THE STUDY SITE TONIGHT. THE MOUNTAIN TOP
FLOW TURNS TO OROGRAPHICALLY FAVORED W-NW WHICH WILL KEEP SNOW
SHOWERS GOING INTO SUNDAY EVENING.

.TODAY...

SKY/WEATHER.........CLOUDY (80-90%). SCATTERED SHOWERS THROUGH THE
                    DAY. ISOLATED THUNDERSTORMS IN THE AFTERNOON.
CLOUD BASES.........2000-5000 FT AGL THIS MORNING...THEN LOWERING TO
                    1000 FT AGL BY LATE AFTERNOON. LOWERING TO THE STUDY
                    SITE AT TIMES THIS LATE AFTERNOON IN HEAVY SHOWERS.
MAX TEMPERATURE.....32-37 F.
MIN HUMIDITY........56-61%.
20-FOOT WINDS.......SOUTH WINDS 10-15 MPH WITH GUSTS TO AROUND 30 MPH.
                    GUSTY AND ERRATIC WINDS EXPECTED NEAR
                    THUNDERSTORMS IN THE AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 21 MPH.

.TONIGHT...

SKY/WEATHER.........CLOUDY (90-100%). WIDESPREAD SHOWERS...HEAVY AT
                    TIMES.
CLOUD BASES.........AT OR BELOW THE STUDY SITE.
MIN TEMPERATURE.....17-22 F.
MAX HUMIDITY........87-92%.
20-FOOT WINDS.......WEST WINDS 14 MPH WITH GUSTS TO AROUND 30 MPH
                    BECOMING SOUTHWEST 5 MPH AFTER MIDNIGHT.
TRANSPORT WINDS.....SOUTHWEST 24 MPH.

.SUNDAY...

SKY/WEATHER.........CLOUDY (90-100%). NUMEROUS SHOWERS IN THE
                    MORNING...THEN WIDESPREAD SHOWERS IN THE
                    AFTERNOON.
CLOUD BASES.........AT OR BELOW THE STUDY SITE THROUGH THE
                    MORNING...LIFTING TO 1000-2000 FT AGL AT TIMES
                    IN THE AFTERNOON.
MAX TEMPERATURE.....25-30 F.
MIN HUMIDITY........69-74%.
20-FOOT WINDS.......WEST WINDS 8-12 MPH. GUSTS UP TO 25 MPH IN THE
                    AFTERNOON.
TRANSPORT WINDS.....WEST 29 MPH.

$$
FORECASTER...JOE RAMEY
REQUESTED BY...DUTY FORECASTER
TYPE OF REQUEST...PRESCRIBED
.TAG 20110409.STORM.01/GJT