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
000
FXUS65 KSLC 261713
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1013 AM MST FRI DEC 26 2014

.SYNOPSIS...THE UPPER LEVEL LOW PRESSURE SYSTEM OVER THE FOUR
CORNERS REGION WILL EXIT TO THE EAST LATER TODAY. THE NEXT COLD
PACIFIC STORM SYSTEM WILL REACH THE AREA LATE IN THE WEEKEND...
AND REMAIN THROUGH THE FIRST HALF OF NEXT WEEK.

&&

.DISCUSSION...THE UPPER LOW CURRENTLY CENTERED JUST TO THE SOUTH
OF THE FOUR CORNERS WILL CONTINUE EAST INTO THE SOUTHERN ROCKIES
LATER TODAY. DEEP LAYER MOISTURE IN THE COLD NORTHERLY FLOW ON THE
BACK SIDE OF THE UPPER LOW CONTINUES TO PRODUCE LIGHT SNOW ALONG
THE I-15 CORRIDOR IN CENTRAL AND SOUTHWEST UTAH LATE THIS MORNING.
SHALLOW INSTABILITY AND WEAK TERRAIN FORCING WILL KEEP PRECIP
LIGHT AND FAIRLY CLOSE TO THE HIGHER TERRAIN THROUGH EARLY THIS
AFTERNOON. ADDITIONAL ACCUMULATIONS WILL BE MINIMAL THROUGH EARLY
THIS AFTERNOON...SO WILL LIKELY END ALL WARNINGS AS SCHEDULE AT
NOON TODAY.

THE ANTI-CYCLONIC NORTHERLY FLOW DEVELOPING ACROSS THE GREAT BASIN
TONIGHT WILL BRING AN END TO SNOW ACROSS UTAH THIS EVENING. THE
TRAILING SHORTWAVE RIDGE WILL MOVE NORTHWEST TO SOUTHEAST ACROSS
THE STATE SATURDAY AHEAD OF THE NEXT COLD PACIFIC STORM FOR LATE
IN THE WEEKEND.

THE NEXT STORM WILL ENTER THE PACIFIC NORTHWEST LATE SATURDAY...
THEN MOVE QUICKLY INTO NORTHERN UTAH BY LATE SATURDAY NIGHT OR
EARLY SUNDAY. LIGHT WARM ADVECTION PRECIP WILL DEVELOP ACROSS FAR
NORTHERN UTAH LATE SATURDAY NIGHT...FOLLOWED BY AN EXPANDING AREA
OF SNOW MOVING SOUTH WITH THE TROUGH SUNDAY/MONDAY. VERY COLD AIR
WILL FOLLOW THE TROUGH SOUTH EARLY IN THE UPCOMING WEEK.

MINOR UPDATES TO THE CURRENT FORECAST WERE MADE EARLIER THIS
MORNING. WILL FOLLOW UP WITH SUBSEQUENT UPDATES AS WARNINGS ARE
CANCELLED/EXPIRED LATER TODAY.

&&

.AVIATION...AT THE SLC TERMINAL...CIGS HAVE A 30 PERCENT CHANCE OF
LOWERING TO 6K FT AGL OR LOWER THROUGH 19Z. OTHERWISE...VFR
CONDITIONS ARE EXPECTED TO PREVAIL WITH NORTHWEST WINDS TODAY
THROUGH THIS EVENING.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...WINTER STORM WARNING UNTIL NOON MST TODAY FOR UTZ014>016-517-518.

WY...NONE.
&&

$$

PUBLIC...CONGER
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.