Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 191553
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
953 AM MDT SUN APR 19 2015

.SYNOPSIS...NORTHWESTERLY FLOW WILL PREVAIL TODAY. HIGH PRESSURE
WILL BUILD IN MONDAY THROUGH TUESDAY BEFORE AN UNSETTLED WEATHER
PATTERN DEVELOPS FOR THE MIDDLE TO LATTER PORTION OF THE WEEK.

&&

.DISCUSSION...A WEAK TROUGH OFF THE NORTHERN CALIFORNIA COAST
CONTINUES TO PUSH SOUTHWESTWARD OUT TO SEA THIS MORNING. WEAK
SHORTWAVE ENERGY IN ASSOCIATION WITH THIS SYSTEM IS MOVING THROUGH
SOUTHERN UTAH THIS MORNING. INSTABILITY WITH THIS WAVE WILL ALLOW
FOR SOME AFTERNOON CONVECTION OVER THE HIGHER TERRAIN...PRIMARILY
OVER EASTERN AND SOUTHERN UTAH. THE INFLUENCE OF THE TROUGH WILL
ALSO CURB WARMING OF THE AIRMASS ALOFT TODAY. AS A RESULT...MAXES
TODAY SHOULD BE SIMILAR TO YESTERDAY...IN EXCESS OF 5F ABOVE
SEASONAL NORMS.

HIGH PRESSURE WILL MOVE OVER UTAH AND SOUTHWEST WYOMING MONDAY AND
TUESDAY. HOWEVER...THE AIRMASS DOES NOT DRY OUT MUCH AND WEAK
WAVES FROM THE MEANDERING CALIFORNIA SYSTEM WILL KEEP SOME
INSTABILITY AROUND...ALLOWING FOR MORE TERRAIN BASED CONVECTION.
AS THE RIDGE BUILDS...TEMPERATURES WILL CONTINUE TO WARM WITH
MAXES RUNNING MORE THAN 10F ABOVE CLIMO BY TUESDAY AFTERNOON. BY
MIDWEEK...THE WEATHER PATTERN TURNS MORE UNSETTLED WITH THE HELP
OF THE CALIFORNIA SYSTEM THAT MOVES ONSHORE AND ANOTHER SPLITTING
PACIFIC NORTHWEST SYSTEM.

NO UPDATES EXPECTED TO THE FORECAST THIS MORNING.

&&

.AVIATION...OPERATIONAL WEATHER CONCERNS ARE EXPECTED TO REMAIN
MINIMAL AT THE KSLC TERMINAL THROUGH THE VALID TAF PERIOD. LIGHT
SOUTHEAST WINDS ARE EXPECTED TO SWITCH TO A LIGHT NORTHWEST BETWEEN
17-19Z.

&&

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

$$

PUBLIC...TRAPHAGAN
AVIATION...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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