Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 011639
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
939 AM MST SUN FEB 1 2015

.SYNOPSIS...A MOIST WEST NORTHWEST FLOW WILL DEVELOP ACROSS THE
NORTHERN GREAT BASIN FOR THE FIRST HALF OF THE WEEK.

&&

.DISCUSSION...AN UPPER RIDGE SITS OVER THE WEST COAST THIS MORNING
WITH A DRY STABLE NORTHERLY FLOW OVER THE CWA. STRATUS PERSISTED
INTO THE MORNING ALONG WITH SOME FOG IN SOME OF THE CENTRAL AND
ERN VALLEYS AS WELL AS NEAR BEAR LAKE. FOG FAILED TO DEVELOP IN
THE CACHE AND WASATCH MTN VALLEYS HOWEVER.

SOME OF THE STRATUS IN THE EAST COULD LINGER THRU THE DAY
PARTICULARLY AROUND LAKE POWELL BUT EXPECT IT TO BURN OFF
ELSEWHERE BY EARLY AFTN.

THE UPSTREAM RIDGE REMAINS MORE OR LESS IN PLACE THRU WED BUT
FLATTENS THIS AFTN AS A SHORT WAVE TROF MOVES OVER IT. THIS WAVE
SPREADS THICKENING CLOUDS INTO THE NRN CWA THIS AFTN AND BRINGS A
SMALL CHANCE OF PRECIP TO THE CWA N AND E OF ABOUT OGDEN LATE
TONIGHT INTO MON. THE NEXT WAVE TO CREST THE RIDGE SENDS A WARM
FRONT THRU NRN UT LATE MON AND BRINGS A LITTLE BETTER CHANCE OF
PRECIP TO A LITTLE MORE OF THE NORTH MON NIGHT INTO TUE.

A WARM FRONT CROSSES THE NRN CWA AGAIN LATE TUE THRU EARLY WED
WITH PROBABLY THE BEST CHANCE FOR PRECIP FROM ABOUT PROVO NORTH
BEFORE THE UPSTREAM RIDGE SHIFTS INLAND AND SHUTS OFF PRECIP WED
NIGHT.

UPDATED EARLIER TO ADJUST FOG/STRATUS COVERAGE TODAY AND TIMING OF
THE ADVANCE OF HIGH CLOUDS INTO THE CWA FROM THE NORTHWEST. NO
ADDITIONAL UPDATES PLANNED.

&&

.AVIATION...WINDS ARE EXPECTED TO SHIFT TO THE NORTH TO NORTHWEST
AT THE SLC TERMINAL BETWEEN 18-20Z.

&&

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

$$

WILENSKY/KRUSE

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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