FNUS75 KGJT 292155
FWSGJT

SPOT FORECAST FOR STORMVEX - PM...NWS
NATIONAL WEATHER SERVICE GRAND JUNCTION CO
255 PM MST WED DEC 29 2010

FORECAST IS BASED ON IGNITION TIME OF 1430 MST ON DECEMBER 29.
IF CONDITIONS BECOME UNREPRESENTATIVE...CONTACT THE NATIONAL WEATHER
SERVICE.

.DISCUSSION...SIGNIFICANT WINTER STORM WILL CONTINUE TO IMPACT THE
RESEARCH SITE TONIGHT AND TOMORROW. AT THE TIME OF THIS WRITING...
SITE IS IN THE WARM SECTOR OF THE STORM AHEAD OF DEEPENING AREA OF
LOW PRESSURE ALONG A COLD FRONT. MODEL GUIDANCE INDICATES THAT
SNOW WILL INTENSIFY LATE TONIGHT AS THE COLD FRONT MOVES INTO THE
AREA SOMETIME IN THE 5 TO 7 AM TIME RANGE. WITH FRONTAL PASSAGE
WINDS WILL SHIFT TO THE NORTHEAST THEN PROGRESSIVELY BACK TO THE
NORTHWEST ON THURSDAY. WIND FLOW AND DYNAMIC LIFT ASSOCIATED WITH
SYNOPTIC LOW WILL GENERATE SIGNIFICANT SNOWFALL AT THE RESEARCH
SITE FROM LATE TONIGHT INTO THURSDAY.

.TONIGHT...

SKY/WEATHER.........CLOUDY (80-90%) WITH BASES AT THE SURFACE
    TO JUST A FEW HUNDRED FEET. PERIODS OF SNOW
    ...HEAVY AT TIMES.
MIN TEMPERATURE.....8-13 F.
MAX HUMIDITY........93-98%.
20-FOOT WINDS.......SOUTHWEST WINDS 5 TO 10 MPH SHIFTING TO THE
    SOUTH AFTER MIDNIGHT. GUSTS UP TO 25 MPH.
TRANSPORT WINDS.....SOUTHWEST 15 TO 20 MPH THROUGH MIDNIGHT
    THEN BACKING TO THE SOUTHEAST AND DECREASING
    TO 10 TO 15 MPH AFTER MIDNIGHT.

.THURSDAY...

SKY/WEATHER.........CLOUDY (90-100%) WITH BASES AT THE SURFACE.
    SNOW...FREQUENTLY HEAVY. COLDER.
MAX TEMPERATURE.....12-17 F.
MIN HUMIDITY........73-78%.
20-FOOT WINDS.......SOUTHEAST WINDS 7 TO 12 MPH WITH GUSTS TO 20
    MPH IN THE MORNING...BACKING FROM NORTHEAST
    TO NORTHWEST AND DECREASING TO 4 TO 8 MPH IN
                    THE AFTERNOON.
TRANSPORT WINDS.....SOUTHEAST 15 MPH THROUGH NOON...THEN
    BECOMING NORTHEAST DURING THE AFTERNOON.

$$

FORECASTER...NORV LARSON
REQUESTED BY...DUTY FORECASTER
TYPE OF REQUEST...PRESCRIBED
.TAG 20101229.STORM.02/GJT