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AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
943 PM MDT FRI APR 17 2015

.SYNOPSIS...NORTHWESTERLY FLOW IN THE WAKE OF A DEPARTING STORM
SYSTEM WILL PREVAIL THROUGH THE WEEKEND. HIGH PRESSURE WILL
TEMPORARILY STRENGTHEN EARLY NEXT WEEK...BEFORE AN UNSETTLED
WEATHER PATTERN DEVELOPS FOR THE LATTER PORTION OF THE WEEK.

&&

.DISCUSSION...THE UPPER LOW THAT HAS AFFECTED THE FORECAST AREA FOR 
THE PAST FEW DAYS IS CURRENTLY CENTERED OVER SOUTH-CENTRAL COLORADO. 
IT IS FORECAST TO CONTINUE TO SLOWLY DRIFT EAST AND INTO THE GREAT 
PLAINS TOMORROW AFTERNOON. IN THE MEANTIME...MOISTURE CONTINUES TO 
WRAP AROUND THIS LOW...SPILLING CLOUDS AND A FEW SHOWERS INTO UTAH. 
MOST OF THE SHOWERS ARE CONFINED TO THE SPINE OF UTAH AND POINTS 
EAST...BUT ARE DECREASING IN COVERAGE THIS EVENING. A CONTINUED 
DOWNWARD TREND IN PRECIPITATION AS WELL AS CLOUD COVER IS EXPECTED 
THROUGH THE NIGHT AND INTO TOMORROW MORNING. 

AN EASTERLY SURFACE PRESSURE GRADIENT STILL EXISTS ACROSS THE 
NORTHERN WASATCH WHICH WILL CONTINUE TO PRODUCED ENHANCED CANYON 
WINDS ALONG THE WASATCH FRONT. HOWEVER...WINDS AT 700MB ARE MORE 
NORTHERLY THAN THEY WERE LAST NIGHT SO THE LACK OF COLD ADVECTION 
ACROSS THE TERRAIN WOULD SUGGEST THAT WINDS WILL NOT BE AS STRONG AS 
THEY WERE LAST NIGHT.

A WEAK SHORTWAVE DISTURBANCE WILL CROSS NORTHERN UTAH LATE TOMORROW 
AFTERNOON AND TOMORROW EVENING. THIS WAVE WILL ACT ON THE REMAINING 
MOISTURE TO GENERATE A FEW SHOWERS ACROSS NORTHEAST UTAH AND 
SOUTHWEST WYOMING TOMORROW.

UPDATED THE FORECAST MAINLY TO INCREASE POPS OVER THE NORTHEASTERN 
ZONES FOR THE REST OF THE NIGHT...AND TO MAKE MINOR TWEAKS TO SKY 
AND WINDS. 

&&

.AVIATION...SOUTHEAST WINDS WILL BECOME ESTABLISHED AT THE SLC 
TERMINAL BY 04Z OR 05Z. OTHERWISE...VFR CONDITIONS ARE EXPECTED 
THROUGH THE NIGHT. 

&&

.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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