Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 310420
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
920 PM MST FRI JAN 30 2015

.SYNOPSIS...AN UPPER LOW OVER THE SOUTHERN GREAT BASIN WILL CONTINUE
TO SPREAD MOISTURE INTO UTAH THROUGH SATURDAY. THE DEEPEST MOISTURE
WILL REMAIN PRIMARILY OVER CENTRAL AND SOUTHERN UTAH.

&&

.DISCUSSION...UPPER LOW CURRENTLY CENTERED OVER SOUTHERN NEVADA
CONTINUES TO SPREAD A DEEP MOIST AIRMASS INTO SOUTHERN AND CENTRAL
UTAH. HEAVIEST PRECIPITATION CURRENTLY OCCURRING ACROSS SOUTH-
CENTRAL UTAH AND INTO THE CENTRAL UTAH MOUNTAINS NEAR LEFT EXIT
REGION OF UPPER JET. IN ADDITION...A WEAK EMBEDDED DISTURBANCE
TRACKING NORTHEAST ACROSS ARIZONA ALSO HELPING TO PROVIDE AREA OF
ENHANCED PRECIPITATION TO SOUTHEAST UTAH AHEAD OF IT THROUGH LATE
TONIGHT.

OVER NORTHERN UTAH...SPOTTY LIGHT PRECIPITATION STILL BEING REPORTED
UNDER THE DEFORMATION AXIS. NORTHERN EXTENT OF PRECIPITATION
CURRENTLY OVER THE CENTER OF THE GREAT SALT LAKE THROUGH THE OGDEN
AREA AND INTO UINTA COUNTY WYOMING. HOWEVER...EASTERLY FLOW AT 700MB
HELPING TO KEEP MUCH OF THE WASATCH FRONT SHADOWED THIS EVENING.
SNOW LEVELS STILL RATHER HIGH THROUGHOUT THE AREA...NEAR 6500 TO
7000FT.

SOUTHWEST UTAH STARTING TO SEE SOMEWHAT OF A BREAK IN PRECIPITATION
NEAR THE CENTER OF THE LOW BUT WILL MAINTAIN HIGH POPS IN THE
CURRENT FORECAST AS SPOTTY SHOWERS WILL CONTINUE UNDER THIS POCKET
OF COLDEST H5 TEMPERATURES. OTHERWISE...WILL BEGIN TO SEE DRIER AIR
PUNCHING IN FROM THE NORTH LATER TONIGHT AS NORTHERLY FLOW INCREASES
WITH SHORTWAVE ENERGY DROPPING FROM MONTANA SOUTHEAST ALONG THE
DIVIDE. THIS WILL ALSO SEND THE UPPER LOW RETREATING SOUTH TOWARDS
MEXICO...RESULT OF WHICH WILL BE DOWNWARD TREND OF PRECIPITATION
FROM NORTH TO SOUTH TOMORROW MORNING. STORM WILL PRETTY MUCH END BY
TOMORROW EVENING AS HIGH PRESSURE SPREADS BACK INTO THE AREA.

NO UPDATES THIS EVENING.

&&

.AVIATION...VFR CONDITIONS WILL PREVAIL AT THE SLC TERMINAL
OVERNIGHT. CIGS WILL BE NEAR 6000 FT THROUGH ABOUT 08-10Z THEN RISE
ABV THAT LEVEL AFTER THAT. WINDS WILL REMAIN NORTHERLY THROUGH THE
NIGHT AND ALL DAY SATURDAY. WINDS COULD BECOME LIGHT AND VARIABLE
FOR A TIME AFTER ABOUT 09Z UNTIL ABOUT 15Z.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...WINTER WEATHER ADVISORY UNTIL 4 PM MST SATURDAY FOR UTZ010-013-
     517-518.

WY...NONE.
&&

$$

CHENG/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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