Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 190358
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
958 PM MDT SAT APR 18 2015

.SYNOPSIS...NORTHWESTERLY FLOW WILL PREVAIL THROUGH THE WEEKEND.
HIGH PRESSURE WILL BUILD EARLY NEXT WEEK BEFORE AN UNSETTLED
WEATHER PATTERN DEVELOPS FOR THE LATTER PORTION OF THE WEEK.

&&

.DISCUSSION...NORTHWESTERLY FLOW ALOFT PREVAILS ACROSS THE GREAT
BASIN THIS EVENING...IN THE WAKE OF A DEPARTING UPPER LOW MAKING
ITS WAY EASTWARD INTO THE CENTRAL HIGH PLAINS. A WEAK UPPER WAVE
WELL REPRESENTED IN RAP 300MB PVU ANALYSIS IS EMBEDDED WITHIN
THIS FLOW ALOFT AND MAKING ITS WAY THROUGH NORTHERN UT THIS
WEAK ASCENT AHEAD OF THIS WAVE COUPLED WITH MODEST INSTABILITY
ACROSS EASTERN UT FIRED CONVECTION ACROSS THE FAR EASTERN CWA
LATE THIS AFTERNOON. THIS ACTIVITY HAS SINCE WEAKENED AND MOVED
EAST OF THE AREA...THUS WILL UPDATE TO REDUCE POPS OVERNIGHT.

THE MODELS GENERATE ANOTHER ROUND OF CONVECTION ACROSS THE HIGHER
TERRAIN OF NORTHERN/CENTRAL UT SUNDAY OWING TO LINGERING MOISTURE
WHICH REMAINS IN PLACE. AS MID LEVEL RIDGING SLOWLY BUILDS ACROSS
THE REGION THROUGH EARLY NEXT WEEK A CONTINUED WARMING TREND IS
EXPECTED AREAWIDE WITH A SMALL THREAT OF DIURNAL TERRAIN BASED
CONVECTION EACH DAY THROUGH TUESDAY.

&&

.AVIATION...LIGHT SOUTHERLY WINDS UNDER VFR SKIES WILL PREVAIL
OVERNIGHT AT KSLC.

&&

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

$$

SEAMAN

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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