Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 060400
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1000 PM MDT THU MAY 5 2016

.SYNOPSIS...THE UPPER LEVEL LOW PRESSURE SYSTEM OFF THE SOUTHERN
CALIFORNIA COAST MOVE SLOWLY EAST INTO THE GREAT BASIN FOR THE
UPCOMING WEEKEND. A SECOND COLDER STORM SYSTEM WILL MOVE SOUTH
FROM WESTERN CANADA AND MOVE THROUGH THE REGION EARLY NEXT WEEK.

&&

.DISCUSSION...AN UPPER LOW REMAINS CENTERED OFF THE CALIFORNIA COAST
THIS EVENING WITH SOUTHERLY FLOW IN PLACE OVER UTAH AHEAD OF IT.
MEANWHILE...A WEAK VORT LOBE IS LIFTING NORTH THROUGH UTAH...THIS
BEING THE MAIN DRIVER OF CONVECTION ACROSS NORTHERN...CENTRAL AND
SOUTHEAST UTAH CURRENTLY. THE SHOWERS HAVE SPAWNED ISOLATED
THUNDERSTORMS THIS EVENING BUT OTHERWISE THE DRY AIRMASS HAS ALLOWED
FOR BRIEF GUSTY MICROBURST WINDS BUT LITTLE RAINFALL. THIS AREA OF
CONVECTION WILL BECOME INCREASINGLY CONFINED TO THE NORTH AS THE
RESPONSIBLE VORT LOBE CONTINUES TO LIFT NORTH.

THE LOW WILL SLOWLY MOVE INTO THE DESERT SOUTHWEST TOMORROW. GREATER
LARGE-SCALE LIFT WILL BRING MORE COVERAGE OF THUNDERSTORMS TO THE
AREA TOMORROW. SOME JET SUPPORT UP NORTH AND INCREASED SHEAR WILL
HELP BRING A BIT OF AN INCREASED THREAT OF STRONGER STORMS TO THAT
AREA TOMORROW AFTERNOON. OTHERWISE...EXPECT A MORE MOIST...COOLER
AND UNSETTLED WEEKEND AS THE UPPER LOW SLOWLY CROSSES THE AREA.

UPDATED THE FORECAST TO MAKE MINOR ADJUSTMENTS TO POP AND WINDS FOR
THE REST OF THE NIGHT.

&&

.AVIATION...SOUTHERLY WINDS WILL BECOME RE-ESTABLISHED AT THE SLC
TERMINAL BY 04-05Z...INCREASING IN SPEED AGAIN BY MID-MORNING
FRIDAY. HOWEVER...ISOLATED SHOWERS DEVELOPING IN THE VICINITY OF THE
TERMINAL WILL LEAD TO ERRATIC AND GUSTY MICROBURST WINDS. THERE IS A
20 PERCENT CHANCE OF THIS OCCURRING OVERNIGHT.

&&

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

$$

CHENG

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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