Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 311531
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
931 AM MDT MON AUG 31 2015

.SYNOPSIS...WEAK HIGH PRESSURE ALOFT WILL BUILD BACK INTO THE
AREA TODAY. A WARMER SOUTHWEST FLOW ALOFT WILL DEVELOP AHEAD OF A
PACIFIC NORTHWEST STORM SYSTEM STARTING TUESDAY...AND WILL PERSIST
THROUGH AT LEAST THURSDAY.


&&

.DISCUSSION...THE SHORTWAVE THAT IMPACTED THE INTERMOUNTAIN WEST
YESTERDAY CONTINUES TO EJECT INTO CANADA THIS MORNING...WITH
INCREASINGLY DRY AND STABLE AIR BEGINNING TO WORK INTO UTAH AND
SOUTHWEST WYOMING. AN AREA OF WEAK CONVERGENCE ALLOWED SOME
SHOWERS TO PERSIST ACROSS THE NORTHERN PORTIONS OF THE CWA
OVERNIGHT AND EARLY THIS MORNING...BUT MOST OF THOSE SHOWERS HAVE
DISSIPATED AS OF 15Z.

ENOUGH MOISTURE AND INSTABILITY IS EXPECTED TO LINGER ACROSS THE
SPINE OF UTAH AND EASTWARD TO ALLOW FOR ISOLATED THUNDERSTORMS
THIS AFTERNOON...WHILE WESTERN UTAH WILL LIKELY CONTINUE TO SEE
CLEARING THROUGH THE DAY. TEMPERATURES THIS AFTERNOON SHOULD
GENERALLY BE NEAR SEASONAL NORMALS ACROSS MOST OF THE AREA.

UPDATED THE FORECAST THIS MORNING TO REMOVE MORNING POPS ACROSS
THE WASATCH FRONT AFTER THE SHOWERS DISSIPATED AND SHIFTED EAST.
ALSO ADDED MENTIONABLE POPS IN CASTLE COUNTRY AND THE UINTA
BASIN FOR THE AFTERNOON...AS THE HRRR AND SOME OTHER GUIDANCE
INDICATES THAT STORMS COULD POTENTIALLY SLIDE EASTWARD AFTER
INITIATING OVER THE HIGHER TERRAIN. OTHERWISE THE FORECAST LOOKS
TO BE IN GOOD SHAPE...AND NO FURTHER UPDATES ARE ANTICIPATED THIS
MORNING.

&&

.AVIATION...LIGHT SOUTHEAST WINDS CURRENTLY IN PLACE AT THE KSLC
TERMINAL ARE EXPECTED TO BECOME LIGHT AND VARIABLE AT TIMES THROUGH
18Z. THEREAFTER PREVAILING NORTHWEST WINDS GREATER THAN 7 KNOTS ARE
EXPECTED TO PREVAIL THROUGH EARLY THIS EVENING. VFR CONDITIONS WILL
BE MAINTAINED THROUGH THE VALID TAF PERIOD WITH ONLY A SCATTERING OF
MID LEVEL CLOUDS DURING THE DAYLIGHT HOURS.


&&

.FIRE WEATHER...A DRIER AND MORE STABLE AIRMASS WILL MOVE BACK IN
FOR THE EARLY PART OF THE WEEK. A PACIFIC TROUGH WILL APPROACH THE
PACIFIC NORTHWEST BY MIDWEEK. THIS WILL INCREASE SOUTHWEST WINDS
TUESDAY THROUGH AT LEAST FRIDAY. THIS MAY PRODUCE AREAS OF CRITICAL
FIRE WEATHER CONDITIONS WHERE FUELS ARE DRY...PARTICULARLY OVER
WESTERN UTAH.
&&

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

$$

PUBLIC...SCHOENING
AVIATION...MERRILL
FIRE WEATHER...KRUSE

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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