FXUS65 KSLC 040409
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
909 PM MST THU DEC 3 2009

.SYNOPSIS...A COLD TROUGH WILL MOVE SOUTH INTO THE AREA FRIDAY
NIGHT AND SATURDAY AND BE OVER THE AREA SUNDAY. THE UNSETTLED
PATTERN WILL CONTINUE INTO NEXT WEEK.

&&

.DISCUSSION...COLD TROUGH OVER THE REGION WILL SHIFT EASTWARD
LATER TONIGHT AS ANOTHER TROUGH OVER BRITISH COLUMBIA DIVES
SOUTHWARD IN THE NORTHERN ROCKIES FRIDAY. LEADING EDGE OF HIGH
CLOUDS...ALBEIT THIN CLOUDS...ARE ALREADY INTO SOUTHWEST IDAHO AND
NORTHWESTERN NEVADA. THESE CLOUDS WILL REACH THE NORTHERN
PORTIONS OF THE CWA BEFORE SUNRISE AND MAY BE JUST ENOUGH OF A
BLANKET TO KEEP MANY AREAS ACROSS THE NORTH FROM REACHING THEIR
FORECAST MINS FOR TONIGHT. HOWEVER...BECAUSE THIS IS PROBABLY ONLY A
DIFFERENCE OF 2 TO 4 DEGREES WILL NOT MAKE ANY UPDATES.

THE HIGH CLOUDS WILL BE THE THICKEST FRIDAY MORNING BUT THEN THIN
DURING THE AFTERNOON. SINCE THESE CLOUDS WILL BE RATHER THIN THE
CURRENT FORECAST OF MOSTLY SUNNY PROBABLY IS ON TARGET.

THE ONLY FORECAST CONCERN IS THE POSSIBILITY OF RIDGETOP WINDS
BECOMING QUITE STRONG TOWARDS DAYBREAK AND THROUGH THE MID MORNING
HOURS ACROSS THE NORTHERN MOUNTAINS. A DEVELOPING STRONG
INVERSION BELOW 600 MB AND FREE AIR NORTH WINDS NEAR 40 KTS WILL
LIKELY COMBINE TO PRODUCE WIND GUSTS IN EXCESS OF 60 MPH ON THE
HIGHEST RIDGES. WILL INFORM THE MID SHIFT TO MONITOR AND MAKE ANY
UPDATES AS NECESSARY IN THE OVERNIGHT PACKAGE.

&&

.AVIATION...THE SLC TERMINAL WILL SEE SOUTHEASTERLY DRAINAGE WINDS 
AND VFR CONDITIONS THROUGH THE OVERNIGHT HOURS. HIGH LEVEL CLOUDS
WILL INCREASE LATE TONIGHT BUT THEN THIN OUT AGAIN FRIDAY AFTERNOON...BUT
ANY CEILINGS THAT DEVELOP WILL BE WELL ABOVE 7000FT AGL THROUGH
00Z SATURDAY.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...NONE.
WY...NONE.

&&

$$

PUBLIC...STRUTHWOLF
AVIATION...SCHOENING

FOR MORE INFORMATION FROM NOAA/S NATIONAL WEATHER SERVICE VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY (ALL LOWER CASE)