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
593
FXUS65 KSLC 061129
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
429 AM MST SAT FEB 6 2016

.SYNOPSIS...HIGH PRESSURE WILL PREVAIL ACROSS THE REGION THROUGH
MUCH OF NEXT WEEK.

&&

.SHORT TERM (THROUGH 00Z WEDNESDAY)...A SHORTWAVE TROUGH
TRAVERSING THE NORTHERN ROCKIES EARLY THIS MORNING WILL REMAIN
WELL NORTH OF THE FORECAST AREA TODAY...WITH THE ONLY DISCERNIBLE
IMPACT BEING AN INCREASE IN MID AND HIGH LEVEL CLOUDS ACROSS THE
NORTH. MEANWHILE A STABLE AIRMASS REMAINS IN PLACE ACROSS THE
AREA. A FEW AREAS OF STRATUS AND FOG PREVAIL IN CENTRAL UT AS WELL
AS IN THE CACHE VALLEY AND WASATCH BACK. ANTICIPATE TEMPERATURES
TODAY TO BE CLOSE TO OR SLIGHTLY COOLER THAN FRIDAYS VALUES GIVEN
LITTLE CHANGE IN TEMPERATURES ALOFT BUT A SLIGHT INCREASE IN CLOUD
COVER.

MID LEVEL RIDGING IS FORECAST TO BECOME ESTABLISHED ACROSS THE
REGION BEGINNING SUNDAY AND PERSISTING BEYOND THE SHORT TERM
PERIOD. SUBSTANTIAL WARMING ALOFT AND LIGHT WINDS WILL ALLOW FOR
STRENGTHENING VALLEY INVERSIONS BUT SUNNY AND WARMING TEMPERATURES
IN THE HIGHER TERRAIN. HAVE LOWERED MANY VALLEY TEMPS SUNDAY
THROUGH TUESDAY...PARTICULARLY THE UINTA BASIN...WEST DESERTS AND
EASTERN VALLEYS WHERE SNOW COVER PREVAILS AND TEMPERATURES HAVE
REMAINED BELOW THE FREEZING MARK OVER THE PAST COUPLE OF DAYS.
FOG/STRATUS WILL ALSO LIKELY INCREASE BY EARLY IN THE WEEK WHICH
WOULD ALSO LIMIT DAYTIME HEATING. HAVE INCLUDED PATCHY
OVERNIGHT/MORNING FOG IN MOST NORTHERN/CENTRAL VALLEYS AWAY FROM
THE WASATCH FRONT.

.LONG TERM (AFTER 00Z WEDNESDAY)...LONG WAVE RIDGE AXIS WILL
POSITION ITSELF OVER THE EASTERN GREAT BASIN WEDNESDAY. THE EC SHOWS
A WEAK DISTURBANCE TRYING TO FLATTEN THIS RIDGE A LITTLE ON THURSDAY
BUT ITS TEMPORARY WITH THE RIDGE REBOUNDING FRIDAY. THE ONLY IMPACT
MAY BE LOWER TEMPS BY A FEW DEGREES OVER THE NORTHERN
MOUNTAINS...OTHERWISE STATUS QUO OVER REST OF CWA WITH VALLEY
INVERSIONS. TOUGHEST PART OF FORECAST ARE TEMPERATURES DUE TO THE
VALLEY INVERSIONS. WITH SNOW COVER IN MOST VALLEYS NOT LIKELY TO SEE
THE WARMING THAT THE MOS GUIDANCE IS SHOWING THROUGHOUT NEXT
WEEK...ESPECIALLY ACROSS THE EASTERN VALLEYS. TEMPS ONLY REACHED THE
MID 20S THERE YESTERDAY AND REALLY DO NOT SEE WHAT WILL CAUSE
TEMPERATURES TO RISE INTO THE 50S BY NEXT THURSDAY OF FRIDAY. HAVE
LOWER TEMPS BACK INTO THE 40S OVER THE EASTERN VALLEYS...EXCEPT
LOWER 30S IN THE UINTA BASIN. FEEL THIS IS A REASONABLE COMPROMISE
BUT COULD SEE THE TEMPS ACTUALLY 10 DEGREES COLDER THAN
THIS...ESPECIALLY IF THE STRATUS DOESN`T BREAKUP.

MAY SEE THE BREAKDOWN OF THIS RIDGE DEVELOPING BY NEXT WEEKEND.

&&

AVIATION...LIGHT SOUTHEAST WINDS WILL LIKELY SHIFT TO NORTHWEST AT
20-21Z BUT THEY COULD SWITCH AS EARLY AS 18-19Z...ALBEIT LIGHT. VFR
CONDITIONS SHOULD PREVAIL BUT THERE IS A 40 PERCENT CHANCE OF
HIGH END MVFR CONDITIONS...ESPECIALLY AFTER 06Z TONIGHT.

&&

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

$$

SEAMAN/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.