Area Forecast Discussion
Issued by NWS Salt Lake City, UT

Current Version | Previous Version | Text Only | Print | Product List | Glossary Off
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 281711
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1111 AM MDT SUN JUN 28 2015

.SYNOPSIS...HIGH PRESSURE WILL REMAIN IN PLACE ACROSS THE REGION
THROUGH THE EARLY PART OF THE WEEK. THE HIGH WILL SHIFT WESTWARD
AFTER MIDWEEK BRINGING A DRIER NORTHERLY FLOW TO THE AREA.
TEMPERATURES WILL REMAIN WELL ABOVE NORMAL THROUGH THE WEEK.

&&

.DISCUSSION...DOMINANT RIDGE OF HIGH PRESSURE REMAINS IN PLACE
OVER THE GREAT BASIN THIS MORNING. WITH 700 HPA TEMPERATURES
STILL GENERALLY +18 TO +20 DEGREES C ACROSS THE STATE...ANOTHER
VERY HOT DAY IS IN STORE. TEMPERATURES ACROSS MOST OF THE STATE
ARE RUNNING 1-3 DEGREES F ABOVE YESTERDAY`S TEMPERATURES AT THE
SAME TIME OF DAY. THIS FITS THE EXPECTATION THAT MOST AREAS WILL
BE A BIT HOTTER THAN YESTERDAY. EXPECT HIGH TEMPERATURES OF 100+
DEGREES F ALONG THE WASATCH FRONT WITH HIGH TEMPERATURES
APPROACHING 110 DEGREES F IN UTAHS DIXIE. MAX TEMPS WERE WELL
HANDLED IN GOING FORECAST AND ONLY MADE A FEW VERY MINOR CHANGES.

LARGE SCALE SUBSIDENCE BENEATH THE UPPER LEVEL RIDGE WILL KEEP
THUNDERSTORM COVERAGE LOW AGAIN TODAY. HOWEVER...FORCING
ASSOCIATED WITH TERRAIN CIRCULATIONS...PRECIPITABLE WATER VALUES AROUND
.75" AND SBCAPE OF 500-100 J/KG OVER THE ELEVATED TERRAIN...WILL
RESULT IN ISOLATED SHOWERS AND THUNDERSTORMS OVER THE HIGH TERRAIN
ACROSS THE STATE THIS AFTERNOON AND EVENING. THE HRRR IS
PERSISTENT WITH IDEA THAT STORMS HAVE THE POTENTIAL TO DRIFT WEST
OFF THE SOUTHERN MOUNTAINS AND OVER THE ADJACENT VALLEYS IN
SOUTHWEST UTAH THIS AFTERNOON AND EVENING. GIVEN THE PERSISTENCE
OF THIS DEPICTION IN THE HRRR GUIDANCE HAVE ADDED SLIGHT CHANCE
POPS TO A SMALL PORTION OF THE SOUTHWEST VALLEYS INCLUDING CEDAR
CITY. OTHERWISE...NO VALLEY POPS OF NOTE.

&&

.AVIATION...VFR CONDITIONS WILL PREVAIL AT THE KSLC TERMINAL
THROUGH THE TAF PERIOD. VARIABLE WINDS THIS MORNING ARE EXPECTED
TO BECOME LIGHT NORTHWEST BY 1800 UTC. THIS EVENING THE SWITCH TO
SOUTHEAST WINDS IS EXPECTED TO OCCUR BETWEEN 0300-0500 UTC.

&&

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

$$

GRAHAM

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.