Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 111627
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
927 AM MST THU DEC 11 2014

.SYNOPSIS...STRENGTHENING SOUTHWEST FLOW ALONG WITH A VERY WARM
AIR MASS WILL CONTINUE THROUGH FRIDAY. A STORM SYSTEM ALONG THE
WEST COAST WILL WEAKEN AS IT MOVES INLAND. THIS STORM SYSTEM WILL
MOVE ACROSS THE REGION LATE FRIDAY THROUGH SATURDAY.

&&

.DISCUSSION...FAIRLY STRONG WARM AIR ADVECTION CONTINUES ACROSS
THE CWA THIS MORNING AS A VERY STRONG PACIFIC SYSTEM APPROACHES
THE CALIFORNIA COAST. 700MB TEMPERATURES NEAR 3C ARE EXPECTED BY
THIS AFTERNOON ACROSS NORTHERN UTAH. THIS WILL TRANSLATE INTO NEAR
RECORD TO RECORD HIGHS ACROSS MANY LOCATIONS. THE CURRENT FORECAST
FOR SALT LAKE CITY IS 64F...WHICH LOOKS GOOD. THE ONLY THING
HOLDING BACK EVEN WARMER TEMPERATURES IS AN APPROACHING MID-LEVEL
CLOUD DECK.

AS THE TROUGH ALONG THE WEST COAST MOVES EASTWARD OVERNIGHT AND
INTO FRIDAY MORNING...700MB FLOW INCREASES TO NEAR 50KTS ACROSS
THE WESTERN DESERTS. WHILE THIS WOULD PROMPT CONCERNS OF A HIGH
WIND WARNING DURING THE AFTERNOON...EXPECT SUFFICIENT DECOUPLING
WILL LIMIT GUST POTENTIAL BELOW 50 MPH.

AS THE TROUGH BEGINS TO SPLIT AND WEAKEN FRIDAY AFTERNOON...WINDS
AT 700MB ACTUALLY DECREASE IN MOST OF THE MODEL GUIDANCE. WILL
LIKELY ISSUE A WIND ADVISORY FOR FRIDAY MORNING WITH THE
AFTERNOON PACKAGE TO COVER THE THREAT OF WIND GUSTS NEAR 50 MPH
AFTER MIDNIGHT ACROSS THE WESTERN VALLEYS. WILL WAIT FOR THE 12Z
GUIDANCE BEFORE MAKING A FINAL DECISION.

UPDATED SKY GRIDS TO INCREASE CLOUD COVER A BIT FASTER ACROSS THE
CWA THIS MORNING BUT OTHERWISE CURRENT FORECAST IS ON TRACK AND NO
ADDITIONAL UPDATES ARE ANTICIPATED.

&&

.AVIATION....VFR CONDITIONS ARE EXPECTED TO CONTINUE AT THE KSLC
TERMINAL THROUGH THE VALID TAF PERIOD. SOUTH WINDS WILL LIKELY
REMAIN GUSTY THROUGH THE AFTERNOON HOURS.

&&

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

$$

KRUSE/VERZELLA

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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