FNUS75 KGJT 211050
FWSGJT

SPOT FORECAST FOR STORMVEX - AM...NWS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
450 AM MDT THU APR 21 2011

FORECAST IS BASED ON IGNITION TIME OF 0430 MDT ON APRIL 21.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...A DISTURBANCE WILL CONTINUE TO BRING SNOW EARLY THIS
MORNING WITH SHOWERS BECOMING MORE SCATTERED IN NATURE LATE THIS
MORNING AND INTO THE AFTERNOON. SOUTHWEST WINDS WILL PICK UP
AHEAD OF AN APPROACHING COLD FRONT ASSOCIATED WITH A STRONGER STORM
DURING THE AFTERNOON. CONVECTIVE CELLS...POSSIBLY A FEW
THUNDERSTORMS WILL BE CAPABLE OF GENERATING VERY STRONG OUTFLOW
WINDS AND BRIEF WHITEOUT CONDITIONS. SNOW WILL CONTINUE THROUGH
THE NIGHT THEN DECREASE...BECOMING SCATTERED IN COVERAGE FRIDAY.

.TODAY...

SKY/WEATHER.........CLOUDY (90-100%). SHOWERS IN THE MORNING...THEN
                    NUMEROUS SHOWERS AND ISOLATED THUNDERSTORMS IN
                    THE AFTERNOON.
CLOUD BASES.........AT OR BELOW THE RESEARCH PLOT THIS MORNING...
    RISING TO 2000 TO 3000 FEET AGL LATE IN THE
    MORNING AT INTO THE EARLY AFTERNOON. LOWERING
    TO THE LEVEL OF THE RESEARCH PLOT AGAIN LATE IN
    THE AFTERNOON.
MAX TEMPERATURE.....33-38 F.
MIN HUMIDITY........69-74%.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE
                    SOUTHWEST EARLY IN THE AFTERNOON AND INCREASING
    TO AROUND 20 MPH WITH GUSTS TO AROUND 35 MPH
    LATE IN THE AFTERNOON. VERY STRONG...GUSTY...AND
    ERRATIC WINDS EXPECTED NEAR THUNDERSTORMS IN THE
    AFTERNOON.
TRANSPORT WINDS.....SOUTHWEST 25 MPH.

.TONIGHT...

SKY/WEATHER.........CLOUDY (90-100%). AREAS OF BLOWING SNOW IN THE
                    EVENING. SHOWERS AND ISOLATED THUNDERSTORMS IN
                    THE EVENING...THEN NUMEROUS SHOWERS AFTER
                    MIDNIGHT.
CLOUD BASES.........AT OR BELOW THE LEVEL OF THE RESEARCH PLOT.
MIN TEMPERATURE.....20-25 F.
MAX HUMIDITY........86-91%.
20-FOOT WINDS.......WEST WINDS 15 TO 20 MPH. GUSTS UP TO 30 MPH.
    GUSTY AND ERRATIC WINDS EXPECTED NEAR
    THUNDERSTORMS IN THE EVENING.
TRANSPORT WINDS.....SOUTHWEST 25 MPH BECOMING TO WEST AROUND
                    MIDNIGHT.

.FRIDAY...

SKY/WEATHER.........MOSTLY CLOUDY (70-80%). SCATTERED SHOWERS.
CLOUD BASES.........2000 TO 4000 FEET AGL.
MAX TEMPERATURE.....27-32 F.
MIN HUMIDITY........57-62%.
20-FOOT WINDS.......WEST WINDS 13 TO 18 MPH WITH GUSTS TO 25 MPH.
TRANSPORT WINDS.....WEST 26 MPH.

$$

FORECASTER...NORV LARSON
REQUESTED BY...DUTY FORECASTER
TYPE OF REQUEST...PRESCRIBED
.TAG 20110421.STORM.01/GJT