Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 250358
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
858 PM MST MON NOV 24 2014

.SYNOPSIS...A WEATHER DISTURBANCE WILL MOVE THROUGH NORTHERN UTAH
TONIGHT AND TUESDAY. HIGH PRESSURE WILL BUILD OVER THE AREA
WEDNESDAY AND REMAIN IN PLACE FOR MOST OF THE WEEK.


&&

.DISCUSSION...A STRONG NORTHERLY FLOW REMAINS OVER UTAH AND
SOUTHWEST WYOMING THIS EVENING...WITH A 160 KNOT JET DIRECTLY
OVERHEAD. THE BOUNDARY LAYER IS FAIRLY DRY AT THE MOMENT...BUT
ADDITIONAL MOISTURE IS EXPECTED TO MOVE INTO THE NORTHERN HALF OF
UTAH OVERNIGHT...AS A SHORTWAVE BRUSHES PAST THE AREA.

PRECIPITATION WITH THIS WAVE IS EXPECTED TO BE CONFINED TO THE
NORTHERN THIRD OF THE FORECAST AREA...WITH THE HEAVIEST
PRECIPITATION IN THE NORTHERN MOUNTAINS IN WARM ADVECTION
NORTHWEST FLOW. ANY PRECIPITATION IN THE NORTHERN VALLEYS MAY
BEGIN AS SNOW OR A RAIN/SNOW MIX...BUT SHOULD SWITCH TO ALL RAIN
BY LATE MORNING TUESDAY...AS 700MB TEMPS QUICKLY RISE FROM -7C TO
-3C BETWEEN 12Z AND 18Z. THE NORTHERN MOUNTAINS SHOULD SEE SOME
SNOW ACCUMULATION...BUT THE BIGGER STORY MIGHT BE STRONG WINDS ON
THE RIDGELINES AND THE POTENTIAL FOR RIMING BOTH AT THE BEGINNING
AND END OF THE WARM ADVECTION EVENT.

THIS WAVE IS FORECAST TO LEAVE THE REGION LATE TUESDAY...WITH HIGH
PRESSURE BUILDING OVER THE GREAT BASIN WEDNESDAY. THIS SHOULD
LEAD TO PRIMARILY DRY AND WARMER WEATHER FOR THE AREA THROUGH THE
REST OF THE WEEK...WITH THE NEXT SIGNIFICANT CHANCE OF
PRECIPITATION COMING MONDAY OR TUESDAY OF NEXT WEEK.

THE FORECAST FOR TONIGHT LOOKS TO BE IN GOOD SHAPE AND NO UPDATES
ARE PLANNED FOR THE EVENING.

&&

.AVIATION...CEILINGS AT THE SLC TERMINAL WILL LOWER THROUGH THE
OVERNIGHT HOURS...AND WILL LIKELY DROP BELOW 7000FT BETWEEN 10Z
AND 14Z. THERE IS A 30 PERCENT CHANCE OF MVFR CONDITIONS IN A
RAIN/SNOW MIX BETWEEN 12Z AND 16Z...AFTER WHICH ANY PRECIPITATION
SHOULD TURN TO ALL RAIN AT THE TERMINAL.

&&

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

$$

SCHOENING

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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