Area Forecast Discussion
Issued by NWS Salt Lake City, UT

Home | Current Version | Previous Version | Text Only | Print | Product List | Glossary On
Versions: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
000
FXUS65 KSLC 281712
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1012 AM MST WED JAN 28 2015

.SYNOPSIS...A WEAK WEATHER SYSTEM WILL LINGER OVER NORTHERN UTAH
TODAY. A MORE POTENT SYSTEM WILL DEVELOP ACROSS THE DESERT
SOUTHWEST LATE IN THE WEEK...IMPACTING CENTRAL AND SOUTHERN UTAH
INTO THE UPCOMING WEEKEND.

&&

.DISCUSSION...WEAK TROUGH MOVING INTO EASTERN COLORADO THIS
MORNING...BUT A BIT OF MOISTURE AND INSTABILITY FROM IT IS
LINGERING OVER NORTHERN UTAH. THIS IS RESULTING IN A FEW
SHOWERS...CENTERED OVER THE HIGHER TERRAIN AND THE GREAT SALT
LAKE. THIS ACTIVITY WILL CONTINUE TO LINGER INTO THE EARLY
AFTERNOON...BUT COVERAGE WILL BE LIMITED. UPDATED THE FORECAST
EARLIER TO LOWER POPS FOR THE REST OF THE MORNING TO MATCH CURRENT
TRENDS. NO ADDITIONAL UPDATES PLANNED.

BRIEF RIDGING IS PROGGED TO MOVE BACK OVER UTAH AND SOUTHWEST
WYOMING TONIGHT AND TOMORROW...BUT THE AXIS WILL WEAKEN THURSDAY
NIGHT/FRIDAY AS A PACIFIC TROUGH MOVES ONSHORE ALONG THE SOUTHERN
CALIFORNIA COAST. THIS SYSTEM WILL TRACK EAST INTO WESTERN ARIZONA
BEFORE SLIDING SOUTH BEGINNING SATURDAY NIGHT. THIS WILL DRAW DEEP
MOISTURE INTO CENTRAL AND SOUTHERN UTAH WITH GFS FORECASTED PWS AS
HIGH AS 0.6 FOR FAR SOUTHERN UTAH...UP TO THREE STANDARD
DEVIATIONS ABOVE NORMAL FOR THIS TIME OF YEAR. WITH GOOD
INSTABILITY...THIS SHOULD RESULT IN WIDESPREAD PRECIP OVER CENTRAL
AND SOUTHERN UTAH. HOWEVER...AIRMASS REMAINS WARM WITH 700 MB
TEMPS IN THE -2C TO -4C RANGE...KEEPING SNOW LEVELS AROUND 7000
FEET. AS THE SYSTEM CONTINUES SOUTH...HIGH PRESSURE IS EXPECTED TO
REBUILD FOR EARLY NEXT WEEK.

&&

.AVIATION...CIGS AT THE SLC TERMINAL ARE EXPECTED TO REMAIN BELOW 7K
FT AGL THROUGH ABOUT 02Z...BUT THERE IS A 30 PERCENT CHANCE THAT THE
CLOUDS WILL LIFT ABOVE 7K FT AGL BY 23-00Z.. WINDS WILL BE LIGHT
WEST NORTHWEST THROUGH ABOUT 02-03Z THEN SHIFT TO THE SOUTHEAST.

&&

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

$$

PUBLIC...TRAPHAGAN
AVIATION...STRUTHWOLF

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)



USA.gov is the U.S. government's official web portal to all federal, state and local government web resources and services.