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000
FXUS65 KSLC 020413
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
913 PM MST SAT MAR 1 2014

.SYNOPSIS...A WEAKENING PACIFIC STORM WILL SLOWLY CROSS THE
GREAT BASIN TONIGHT THROUGH SUNDAY MORNING. MOIST WESTERLY FLOW
WILL PERSIST ACROSS NORTHERN UTAH THROUGH THE EARLY PART OF THE
WEEK.

&&

.DISCUSSION...A WEAKENING UPPER TROUGH CURRENTLY MOVING INTO THE
INTERIOR WEST WILL CONTINUE TO GRADUALLY TRANSLATE EASTWARD
OVERNIGHT THROUGH SUNDAY MORNING. THE BULK OF FORCING ASSOCIATED
WITH THIS TROUGH WILL PASS SOUTH OF THE AREA THROUGH THE DESERT
SOUTHWEST. HOWEVER THE NORTHERN PORTION OF THIS WAVE...WHICH SHOWS
UP BEST IN UPPER LEVEL PV FIELDS...IS IN THE PROCESS OF TREKKING
ACROSS NORTHERN UT THIS EVENING AND WILL CONTINUE TO INFLUENCE THE
AREA INTO THE OVERNIGHT HOURS. THE MAJORITY OF SHOWER ACTIVITY
ASSOCIATED WITH THIS WAVE IS AFFECTING LOCATIONS NORTH OF I-80
WITH SNOW LEVELS GENERALLY REMAINING ABOVE 6 KFT. MEANWHILE
PRECIPITATION HAS LARGELY DIMINISHED ACROSS CENTRAL AND SOUTHERN
UT. UPDATED EARLIER TO LOWER POPS ACROSS THIS PORTION OF THE
FORECAST AREA. OTHERWISE GOING FORECAST OVERNIGHT LOOKS IN
REASONABLE SHAPE...AND HAVE MAINTAINED THE GOING WINTER WX
ADVISORY FOR THE NORTHERN WASATCH RANGE THROUGH THE OVERNIGHT
HOURS.

IN THE WAKE OF THIS PASSING WAVE A PREDOMINANTLY ZONAL FLOW WILL
PREVAIL INTO EARLY NEXT WEEK. EMBEDDED SHORTWAVE ENERGY GENERALLY
REMAINING NORTH OF THE FORECAST AREA...BUT WILL PASS CLOSE
ENOUGH TO MAINTAIN A CHANCE FOR VALLEY RAIN/MOUNTAIN SNOW ACROSS
NORTHERN UT. A SOMEWHAT STRONGER TROUGH IS FORECAST TO CROSS THE
FORECAST AREA DURING THE DAY TUESDAY BRINGING A BETTER CHANCE FOR
VALLEY RAIN/MOUNTAIN SNOW.

&&

.AVIATION...SCATTERED RAIN SHOWERS ARE LIKELY TO CONTINUE ACROSS THE
SLC TERMINAL THROUGH AT LEAST 07Z WITH A 30 PERCENT CHANCE OF THEM
LINGERING THROUGH 10Z. CIGS WILL BE AROUND 5K TO 6K FEET AGL IN
SHOWERS OTHERWISE THEY SHOULD BE NEAR OR ABOVE 7K FEET AGL THROUGH
TONIGHT. NORTHERLY WINDS ARE EXPECTED THROUGH 07Z BUT COULD SHIFT TO
SOUTHEAST EARLIER IF SHOWERS BECOME MORE PREVALENT TO THE SOUTH OF
THE AIRPORT.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...WINTER WEATHER ADVISORY UNTIL 5 AM MST SUNDAY FOR UTZ007.

WY...NONE.
&&

$$

SEAMAN/STRUTHWOLF

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)