Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 062236
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
336 PM MST SAT FEB 6 2016

.SYNOPSIS...A WEAK SYSTEM WILL BRUSH NORTHERN UTAH TONIGHT. HIGH
PRESSURE WILL PREVAIL ACROSS THE REGION THROUGH THE REST OF THE
WEEKEND AND MUCH OF NEXT WEEK.

&&

.SHORT TERM (THRU 00Z WEDNESDAY)...THE UPPER RIDGE AXIS REMAINS
CENTERED TO OUR WEST JUST OFF THE CA COAST THIS AFTERNOON WITH A
NWLY FLOW ALOFT OVER THE CWA. THE SHORT WAVE PASSING TO OUR NORTH
IS FORECAST TO BRING A BAND OF LOWER TO MID CLOUD ACROSS THE NRN
CWA TONIGHT AND COULD GENERATE A FEW FLURRIES IN THE NRN MTNS.
OTHER THAN THAT AND A MODEST INCREASE IN RIDGE TOP WINDS OVER THE
NRN MTNS EXPECT LITTLE IN THE WAY OF SENSIBLE WEATHER FROM THIS
FEATURE.

SURFACE HIGH PRESSURE REMAINS CENTERED OVER THE CWA THIS AFTN WITH
WELL DEVELOPED VALLEY INVERSIONS IN PLACE. FOG AND STRATUS HAS
PRETTY MUCH BURNED OFF ALTHO A FEW AREAS PERSIST IN THE SERN
BASINS AND NEAR SEVIER DRY LAKE IN WEST CENTRAL UT.

IT SHOULD REFORM TONIGHT IN SERN AND SWRN UT PROBABLY NOT LONG
AFTER DARK. THE CLOUDS CROSSING THE NRN CWA COULD DISRUPT THIS
SOMEWHAT THERE BUT ONCE THEY MOVE PAST EXPECT THE LOW CLOUDS AND
FOG TO FORM IN ABOUT THE SAME AREAS AS LAST NIGHT...THE CACHE
VALLEY AND WASATCH FRONT NORTH OF OGDEN...HEBER VALLEY...UTAH
VALLEY...SANPETE VALLEY AND THE WESTERN UINTA BASIN. AT THIS TIME
EXPECT THE SALT LAKE VALLEY TO STAY FOG FREE ALTHO HAZE SHOULD
GRADUALLY BUILD UP.

THIS PATTERN WILL LIKELY REPEAT ITSELF THROUGH TUESDAY AS THE
UPPER HIGH BUILDS STRONGLY TO OUR WEST WITH TEMPS STRUGGLING TO
WARM MUCH IN MOST OF THESE FOGGY AREAS. OTHER THAN THE STRATUS
AND FOG...EXPECT MOSTLY CLEAR DRY WEATHER SUN AFTN THRU TUE AND
TEMPS SHOULD WARM UP OUTSIDE OF THE VALLEY INVERSIONS.

.LONG TERM (AFTER 00Z WEDNESDAY)...HIGH PRESSURE REMAINS THE
DOMINANT WEATHER FEATURE OVER THE FORECAST AREA THROUGH THE
EXTENDED PERIOD...ALLOWING VALLEY INVERSIONS TO CONTINUE TO
STRENGTHEN. THIS AXIS IS EXPECTED TO BE OVER NEVADA TUESDAY NIGHT
BEFORE SHIFTING OVERHEAD WEDNESDAY AFTERNOON. THE RIDGE IS
EXPECTED TO WEAKEN SLIGHTLY WEDNESDAY AFTERNOON INTO THURSDAY AS A
WEAK TROUGH MOVES OVER THE TOP OF THE RIDGE OVER THE PACNW AND
SOUTHERN CANADA. BY THURSDAY AFTERNOON...THE RIDGE AXIS IS PROGGED
TO REDEVELOP OVER NEVADA BEFORE SHIFTING BACK OVER THE FORECAST
AREA FRIDAY NIGHT/EARLY SATURDAY. 12Z MODELS ARE INDICATING A
TROUGH POTENTIALLY WEAKENING THE RIDGE NEXT SATURDAY NIGHT/SUNDAY.

&&

.AVIATION...VFR CONDITIONS ARE EXPECTED AT THE SLC TERMINAL
THROUGH THE EVENING. NORTHWEST WINDS ARE EXPECTED TO RETURN TO THE
SOUTHEAST BETWEEN 03Z AND 05Z. THERE IS A 30 PERCENT CHANCE OF
VISIBILITIES DROPPING INTO THE MVFR RANGE AT TIMES OVERNIGHT.

&&

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

$$

SHORT TERM...WILENSKY
LONG TERM/AVIATION...TRAPHAGAN

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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