FXUS65 KSLC 291646
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
945 AM MST SUN NOV 29 2009

.SYNOPSIS...AN UPPER LOW OVER NORTHERN BAJA CALIFORNIA WILL CONTINUE 
TO MOVE SOUTHEAST TODAY. HIGH PRESSURE WILL BUILD INTO THE AREA FROM 
THE NORTHWEST TODAY AND PERSIST THROUGH EARLY NEXT WEEK.

&&

.DISCUSSION...AN UPPER LOW CURRENTLY OVER NORTHERN BAJA WILL 
CONTINUE TO SLOWLY SLIDE EAST ACROSS NORTHERN MEXICO TODAY AND 
TOMORROW. AS IT DOES SO...MOISTURE WILL RECEDE FARTHER SOUTH...AND 
THIS IS ALREADY EVIDENT FROM THE CLEARING SKIES AND DECREASING PW 
VALUES FROM GOES SOUNDER DATA. ALTHOUGH AN AREA OF NEGATIVE LIFTED 
INDICES REMAIN ACROSS FAR SOUTHERN UTAH...EXPECT STABILITY TO 
INCREASE AS THE DAY PROGRESSES. MODEL BUFR SOUNDINGS FROM SITES IN 
SOUTHERN UTAH INDICATE THAT THE AIRMASS WILL BE TOO STABLE FOR MUCH 
IN THE WAY OF PRECIPITATION TODAY. WILL UPDATE MAINLY TO 
REMOVE/DECREASE MORNING POP REFERENCES...BUT LEAVE EXISTING MINOR 
POP REFERENCES FOR THE AFTERNOON. GUSTY WINDS REMAIN NEAR WASHINGTON 
COUNTY CANYONS THIS MORNING AND EXPECT THIS TO CONTINUE THROUGH MUCH 
OF THE DAY...BUT WIND SPEEDS ARE EXPECTED TO REMAIN BELOW ADVISORY 
CRITERIA.

MEANWHILE FARTHER NORTH...HIGH PRESSURE WILL BUILD OVER THE PACIFIC 
NORTHWEST AND WILL SPREAD INTO THE NORTHERN GREAT BASIN TONIGHT. DRY 
AND STABLE CONDITIONS WILL BE THE NORM AS A RESULT. TEMPERATURES 
WILL COOL SLIGHTLY AS A TROUGH DROPS INTO THE GREAT PLAINS...BUT IT 
WILL HAVE LITTLE OTHER NOTICEABLE EFFECT EXCEPT FOR SOME INCREASED 
CLOUD COVER. EXPECT INVERSIONS TO GRADUALLY BUILD AS MIXING WILL BE 
LIMITED FOR MUCH OF THE WEEK.

NEXT BIG STORM STILL POSSIBLE FOR NEXT WEEKEND. HOWEVER...MODELS 
HAVE YET TO ALL COME TOGETHER ON A REASONABLE SOLUTION...SO WILL 
CONTINUE TO WATCH HOW THE MODEL SOLUTIONS EVOLVE OVER THE NEXT FEW 
DAYS.

&&

.AVIATION...VFR CONDITIONS ARE EXPECTED TO CONTINUE AT THE KSLC 
TERMINAL THROUGH THE TAF PERIOD. WINDS ARE EXPECTED TO REMAIN 
GENERALLY LIGHT AND VARIABLE FROM THE NORTH THROUGH 17Z BEFORE 
INCREASING OUT OF THE NORTHWEST TO BETWEEN 6 AND 10 KNOTS FOR THE 
AFTERNOON. SOUTHEASTERLY DRAINAGE WINDS ARE EXPECTED TO RETURN 
BETWEEN 03-05Z. JUST TOOK BCFG OUT OF TAF FOR TOMORROW MORNING AS 
INVERSION HAS LOST ITS STRENGTH...AND LOW LEVEL MOISTURE LEVELS HAVE 
DRIED SIGNIFICANTLY.  

&&

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

&&

$$

PUBLIC...CHENG
AVIATION...MERRILL

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