Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 270338
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
938 PM MDT WED AUG 26 2015

.SYNOPSIS...HIGH PRESSURE WILL RETURN THURSDAY AFTERNOON AND INTO
THE UPCOMING WEEKEND...RESULTING IN A GRADUAL WARMING AND DRYING
TREND.

&&

.DISCUSSION...THE MAIN SHORTWAVE DISTURBANCE THAT WAS RESPONSIBLE
FOR PRODUCING WIDESPREAD PRECIPITATION OVER THE AREA TODAY HAS
LIFTED INTO SOUTHWEST WYOMING THIS EVENING. THE BULK OF THE SHOWERS
DIRECTLY ASSOCIATED WITH THIS WAVE HAS SHIFTED AWAY FROM THE AREA AS
A RESULT...WITH SUBSIDENCE DEVELOPING IMMEDIATELY BEHIND SAID WAVE.
HOWEVER...FURTHER UPSTREAM...AN AXIS OF INSTABILITY EXTENDS FROM FAR
NORTHWEST UTAH INTO SOUTH-CENTRAL UTAH WHERE A FAIRLY SUBSTANTIAL
AREA OF SHOWERS REMAIN IN PLACE. SOME SHOWERS WERE LOCALLY HEAVY
EARLIER THIS EVENING...BUT THESE HAVE SINCE TRENDED LIGHTER AND MORE
STRATIFORM WITH THE LOSS OF DAYTIME HEATING. EXPECT THESE SHOWERS TO
LINGER FOR A FEW MORE HOURS WHILE PROPAGATING A BIT FURTHER EAST
BEFORE DISSIPATING LATE TONIGHT.

A SHORTWAVE RIDGE WILL BUILD OVER UTAH TOMORROW WHILE DRIER AIR
SPREADS INTO THE AREA. HOWEVER...LINGERING MOISTURE ESPECIALLY AT
THE LOWER LEVELS WILL CONTINUE TO ALLOW FOR SOME MAINLY TERRAIN-
BASED SHOWERS THE NEXT FEW DAYS...WITH COVERAGE GENERALLY TRENDING
DOWNWARD. WARMER TEMPERATURES WILL RETURN AS WELL.

UPDATED THE FORECAST MAINLY TO INCREASE POPS ACROSS THE SOUTH AND
DECREASE THEM ACROSS THE NORTH FOR THE REST OF THE NIGHT. ALSO MADE
MINOR TWEAKS TO SKY COVER AND OVERNIGHT MINS.

&&

.AVIATION...SOUTHEAST WINDS WILL REMAIN IN PLACE AT THE SLC TERMINAL
THROUGH THE NIGHT. OTHERWISE...EXPECT VFR CONDITIONS WITH HIGH CIGS
SLOWLY SCATTERING OUT.

&&


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

$$

CHENG


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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