Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 132200
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
400 PM MDT SAT SEP 13 2014

.SYNOPSIS...HIGH PRESSURE ALOFT WILL SHIFT EAST ACROSS THE GREAT
BASIN THIS WEEKEND...THEN STRENGTHEN EARLY NEXT WEEK. MOISTURE
WILL RETURN TO UTAH FROM THE SOUTH LATE NEXT WEEK.



&&

.DISCUSSION...MOSTLY SUNNY SKIES DOMINATED TODAY AS A HIGH
PRESSURE RIDGE ENSCONCED UTAH...THOUGH SCATTERED HIGH CLOUDS ARE
BEGINNING TO THICKEN IN NORTHERN UTAH. SIGNIFICANT WARM AIR
ADVECTION HAS RETURNED TEMPERATURES TO SEASONAL NORMS STATEWIDE
TODAY. EXPECT MORE OF THE SAME TOMORROW AS THE RIDGE AXIS SHIFTS
EASTWARD INTO UTAH. THIS SHIFT COUPLED WITH AN INFLUX OF MOISTURE
FROM THE SOUTH WILL ENCOURAGE ISOLATED AFTERNOON THUNDERSTORMS
OVER MOUNTAINOUS TERRAIN FROM SOUTHWEST TO NORTHEAST UTAH.

THE RIDGE CONTINUES TO AMPLIFY INTO MIDWEEK...ALLOWING
TEMPERATURES TO CLIMB ABOVE NORMS ACROSS THE REGION. AS AN UPPER
LEVEL TROUGH BUILDING IN THE PACIFIC FORCES THE RIDGE AXIS
FURTHER EAST...MOISTURE ASSOCIATED WITH HURRICANE ODILE WILL SPREAD
INTO SOUTHERN UTAH WEDNESDAY NIGHT INTO THURDSAY. MOISTURE CAREENS
INTO THE REST OF THE CWA BY THURSDAY EVENING. MODELS DISAGREE ON
EXTENT OF COOLING...WITH THE EC NOW WARMER THAN THE GFS AT
700MB...BUT BOTH CONCUR THAT FRIDAY WILL BE THE COOLEST DAY...WITH
A DROP OF 10-15 DEGREES FROM WEDNESDAYS HIGHS.

&&

.AVIATION...THE SLC TERMINAL WILL EXPERIENCE VFR CONDITIONS
THROUGH THE TAF PERIOD. NORTHWEST WINDS ARE EXPECTED TO SWITCH TO
THE SOUTHEAST BETWEEN 0200 UTC AND 0400 UTC.

&&

.FIRE WEATHER...A WARM AND GENERALLY DRY WEST TO SOUTHWEST FLOW HAS
DEVELOPED OVER THE FIRE DISTRICT TODAY AND WILL REMAIN IN PLACE
THROUGH THE EARLY PART OF THE UPCOMING WEEK. ENOUGH INSTABILITY WILL
BE OVER THE AREA BY TOMORROW TO RESULT IN ISOLATED AFTERNOON
CONVECTION OVER THE HIGHER TERRAIN. THE AIRMASS WILL BECOME
INCREASINGLY STABLE MONDAY AND TUESDAY AS THE RIDGE BUILDS. TROPICAL
MOISTURE ASSOCIATED WITH HURRICANE ODILE IS EXPECTED TO MOVE UP INTO
THE FORECAST AREA FOR THE LATTER PART OF THE WORK WEEK.

&&

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

$$

PUBLIC...VERZELLA
FIRE WEATHER...TRAPHAGAN
AVIATION...GRAHAM

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

FOR FREQUENTLY ASKED QUESTIONS ABOUT THE AREA FORECAST DISCUSSION
VISIT...
HTTP://WEATHER.GOV/SALTLAKECITY/GENERAL/AFD_FAQS.PHP (ALL LOWER CASE)



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