Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 100412
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1012 PM MDT WED APR 9 2014

.SYNOPSIS...A MILD WESTERLY FLOW ALOFT WILL PREVAIL THROUGH THE
REMAINDER OF THE WEEK. A PAIR OF WEAK SYSTEMS WILL AFFECT THE
REGION DURING THE UPCOMING WEEKEND.

&&

.DISCUSSION...A WEAK SHORTWAVE TROUGH PASSING NORTH OF THE
FORECAST AREA THIS EVENING HAS PUSHED A SHALLOW COLD FRONT INTO
NORTHERN UT. REGIONAL RADAR IMAGERY SHOWS A FEW SHOWERS JUST NORTH
OF THE ID BORDER...AND THIS ACTIVITY MAY AFFECT FAR NORTHERN UT
OVERNIGHT INTO THURSDAY. OTHERWISE EXTENSIVE HIGH LEVEL MOISTURE
WHICH SPREAD ACROSS THE FORECAST AREA THROUGHOUT THE DAY CONTINUES
TO THIN A BIT...AND THIS TREND WILL LIKELY CONTINUE THROUGH THE
NIGHT.

THIS COLD ADVECTION ACROSS THE NORTH WILL KNOCK A FEW DEGREES OFF
HIGH TEMPERATURES THURSDAY/FRIDAY...WHILE SOUTH OF THIS BOUNDARY
PERSISTENCE SEEMS TO BE THE BEST FORECAST ACROSS CENTRAL AND
SOUTHERN UT.

A PAIR OF SHORTWAVE FEATURES ARE STILL FORECAST TO PASS THROUGH
THE WESTERN CONUS OVER THE UPCOMING WEEKEND. THE FIRST IS AN
UPPER LOW WHICH WILL PASS THROUGH THE DESERT SOUTHWEST AS IT
WEAKENS DURING THE DAY SATURDAY...WITH THE ASSOCIATED MID LEVEL
DEFORMATION AXIS ALLOWING FOR A SMALL CHANCE OF SHOWERS ACROSS THE
FORECAST AREA DURING THE DAY. THE SECOND FEATURE IS A NORTHERN
STREAM WAVE WHICH IS FORECAST TO DIG SOUTH THROUGH THE FORECAST
AREA LATE SATURDAY NIGHT INTO SUNDAY. THE GFS AND EC CONTINUE TO
HOLD SERVE WITH RESPECT TO THEIR SOLUTIONS...WITH THE EC
REMAINING A BIT DEEPER WITH THIS SECONDARY WAVE THAN THE
GFS...AND SUGGESTS A BETTER CHANCE FOR PRECIPITATION WHILE THE
GFS REMAINS DRY. EITHER WAY...A THE COLD FRONT ASSOCIATED WITH
THIS WAVE WILL KNOCK TEMPERATURES BACK DOWN NEAR NORMAL BY SUNDAY.

&&

.AVIATION...VFR CONDITIONS WITH SOUTH WINDS WILL PREVAIL AT KSLC
THROUGH THE OVERNIGHT HOURS.

&&

.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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