Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 240352
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
952 PM MDT WED JUL 23 2014

.SYNOPSIS...MOISTURE HAS SPREAD ACROSS MOST OF UTAH THIS EVENING.
A DRY COLD FRONT WILL SWEEP THIS MOISTURE OUT OF NORTHERN UTAH
THURSDAY WHILE IT REMAINS IN PLACE ACROSS THE SOUTH INTO THE
WEEKEND.

&&

.DISCUSSION...THE DEEPEST MOISTURE REMAINS ALONG AND EAST OF
APPROX I-15 THIS EVE. CONVECTION WAS ACTIVE TODAY OVER THE MTNS
NEWD INTO THE UINTA BASIN. WEAK CONVECTION HAS PERSISTED INTO THIS
EVE ACROSS THE CENTRAL MTNS AND IS ALSO FILLING IN ACROSS THE
SOUTHERN AND ERN VALLEYS WHERE IT SHOULD PERSIST THRU THE NIGHT.

ENOUGH MOISTURE DID MAKE IT INTO THE NWRN CWA TO SET OFF A ROUND
OF HIGH BASED CONVECTION LATE IN THE DAY. THE BULK OF THIS IS
MOVING OUT OF THE NRN CWA AT THIS TIME BUT ADDITIONAL WEAK CELLS
COULD STILL FORM OVERNIGHT INTO THU MORNING UNTIL THE COLD FRONT
ARRIVES.

THE COLD PACNW TROF IS STILL FORECAST TO SLIDE EAST ALONG THE
CANADIAN BORDER THRU THE NRN ROCKIES THRU FRI AND SENDS A DRY COLD
FRONT THRU NRN UT DURING THE DAY TOMORROW. THIS FRONT AND THE
DRIER MORE WESTERLY FLOW BEHIND IT SHOULD SWEEP THE MOISTURE OUT
OF NRN UT BY TOMORROW AFTN WHILE IT STAYS IN PLACE ACROSS THE
SOUTH AND EAST. NERN UT DRIES SOMEWHAT FRI WITH THE MOISTURE
BOUNDARY BECOMING MORE E-W ACROSS THE CWA BY SAT.

TEMPS SHOULD COOL ABOUT 5-10 DEGREES ACROSS THE NORTH TOMORROW
THEN REMAIN SIMILAR FRI WHILE THE SOUTH COOLS A LITTLE DUE TO
INCREASED CLOUDS AND MOISTURE.

UPDATED FORECASTS EARLIER TO SHIFT POPS NWD A LITTLE AND ADD
MENTION OF DRY TSTMS TO THE NW DESERTS. UPDATED AGAIN TO SHIFT
POPS FURTHER NORTH AND REDUCE COVERAGE OVER THE NERN AND CENTRAL
MTNS TO ISOLATED. NO ADDITIONAL UPDATES PLANNED.

&&

.AVIATION...VFR CONDITIONS WILL PREVAIL AT KSLC THROUGH THE TAF
PERIOD. WINDS WILL BE SOUTHERLY THROUGH THE NIGHT AND INTO
THURSDAY MORNING. THERE IS A 10 PERCENT CHANCE THAT PASSING
SHOWERS COULD CREATE GUSTY OUTFLOW WINDS ACROSS THE AIRFIELD THRU
ABOUT 15Z TOMORROW.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...RED FLAG WARNING UNTIL 10 PM MDT THIS EVENING FOR UTZ478-488-489-
     492-493-495-496.

WY...NONE.
&&

$$

WILENSKY

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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