Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 191614
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1014 AM MDT FRI SEP 19 2014

.SYNOPSIS...AN UPPER TROUGH WILL MOVE OUT OF NORTHERN UTAH THIS
MORNING. A CLOSED LOW OFF THE SOUTHERN CALIFORNIA COAST WILL START
TO LIFT NORTHWARD SATURDAY AND SLOWLY CROSS THE GREAT BASIN
SUNDAY THROUGH MONDAY.


&&

.DISCUSSION...REMNANT CONVECTION FROM AN EXITING TROUGH IS
TAPERING RAPIDLY AS IT MOVES NORTHEAST INTO THE UINTA BASIN.
CURRENT GOES SOUNDER PWAT VALUES ALSO REVEAL DRIER AIR
INFILTRATING NORTHERN UTAH...AS SUCH HAVE REDUCED NORTHERN AREA
LATE MORNING POPS. COOLER AIR BEHIND THE TROUGH WILL BRING MORE
SEASONAL TEMPERATURES TO MUCH OF THE STATE TODAY.

MOISTURE REMAINS PREVALENT ACROSS MUCH OF THE REMAINING
CWA...FUELING MORNING CONVECTION OVER THE HIGH TERRAIN OF CENTRAL
AND SOUTHERN UTAH. THIS ACTIVITY IS EXPECTED TO INCREASE IN
COVERAGE AND INTENSITY INTO THE AFTERNOON. HAVE THUS INCREASED
LATE MORNING POPS IN THIS REGION. MODERATE CAPE VALUES AND GOOD
INSTABILITY COMBINE WITH MOISTURE AND DIMINISHING BOUNDARY LAYER
WINDS TO PROMOTE THE CHANCE OF LOCALLY HEAVY RAIN INTO THE EARLY
EVENING HOURS IN THESE AREAS. MOST OF THIS ACTIVITY SHOULD
DIMINISH SHORTLY AFTER SUNSET.

EXPECTING CONVECTION AGAIN TOMORROW AFTERNOON AS A CLOSED LOW
NUDGES BACK INTO THE GREAT BASIN AREA...THOUGH ACTIVITY IS LIKELY
TO BE LATER IN THE DAY AND MORE FOCUSED ON SOUTHERN UTAH.



&&

.AVIATION...LIGHT NORTHERLY WINDS EXPECTED TO PREVAIL AT KSLC
THROUGHOUT THE DAY WITH ONLY A 10 PERCENT CHANCE OF A SHOWER OR
THUNDERSTORM IMPACTING THE TERMINAL THROUGH THIS EVENING.

&&

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

$$

PUBLIC...VERZELLA
AVIATION...SEAMAN

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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