Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 180405
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1005 PM MDT THU APR 17 2014

.SYNOPSIS...A WEAKENING STORM SYSTEM WILL CROSS THE REGION LATE
FRIDAY THROUGH SATURDAY. A STRONGER STORM WILL IMPACT THE AREA
DURING THE MIDDLE OF NEXT WEEK.

&&

.DISCUSSION...THE AXIS OF THE UPPER RIDGE IS SHIFTING ACROSS THE
CWA THIS EVE AND HIGH CLOUDS ARE INCREASING IN ITS WAKE AHEAD OF
THE SPLITTING TROF ALONG THE WEST COAST. THE AXIS OF THE WARMEST
AIR ALOFT ALSO PASSES TONIGHT AND THE AIRMASS STARTS COOLING
ACROSS THE NORTH DURING THE DAY AS THE NRN BRANCH WAVE SENDS A
DYING COLD FRONT INTO NRN UT.

COOLING ALSO BEGINS ACROSS SRN UT TOMORROW AFTN AS THE SRN BRANCH
LOW STARTS TO LIFT NEWD. PRECIP ALONG THE NRN COLD FRONT LOOKS
LIKE IT DOES NOT REMAIN ORGANIZED VERY WELL PAST NOON BUT A BETTER
ORGANIZED BAND APPEARS TO SWING UP ACROSS SRN UT TOMORROW NIGHT.

RESIDUAL MOISTURE AND INSTABILITY KEEP A THREAT OF CONVECTION
GOING SAT AND ACROSS THE SOUTH SUNDAY SOUTH OF A WEAK DRY FRONT.

SWLY FLOW PICKS UP MON AND THE THREAT OF CONVECTION SHIFTS INTO
THE NRN CWA.

THE 18Z GFS WAS STILL INDICATING A STRONG COLD FRONT FOR TUE AFTN
AHEAD OF A DEEP COLD PAC TROF WITH STRONG SWLY FLOW AHEAD OF IT
TUE. THIS SHOULD GENERATE STRONG WINDS BOTH AHEAD OF AND BEHIND
THE COLD FRONT ON TUE.

NO UPDATES PLANNED AT THIS TIME.

&&

.AVIATION...WINDS AT THE SLC TERMINAL WILL REMAIN OUT OF THE
SOUTH OVERNIGHT AND THROUGH THE MORNING. WINDS COULD BECOME GUSTY
AFTER ABOUT 12Z WITH A CHANCE THAT THIS COULD OCCUR AS EARLY AS
09Z. VFR CONDITIONS WILL PREVAIL.

&&

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

$$

WILENSKY

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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