Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 280401
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
1001 PM MDT SUN JUL 27 2014

.SYNOPSIS...MONSOONAL MOISTURE ACROSS SOUTHERN AND CENTRAL UTAH WILL
CONTINUE TO WORK ITS WAY NORTHWARD THROUGH MONDAY...AND REMAIN IN
PLACE THROUGH MIDWEEK. AN UPPER LEVEL LOW PRESSURE WILL TRACK NORTH
ACROSS UTAH MONDAY THROUGH TUESDAY.

&&

.DISCUSSION...A NORTHWEST TO SOUTHEAST-ORIENTED RIDGE REMAINS IN
PLACE OVER UTAH THIS EVENING. THE AIRMASS REMAINS QUITE MOIST SOUTH
OF THIS RIDGE AXIS. THIS MOISTURE ALLOWED SCATTERED WET
THUNDERSTORMS TO DEVELOP ONCE AGAIN IN THIS AREA TODAY.
MEANWHILE...NORTHEAST OF THE RIDGE AXIS...CONVECTION REMAINED
LARGELY SUPPRESSED. AS THE RIDGE AXIS TO CONTINUES TO ROTATE AND
BECOME MORE VERTICAL OVERNIGHT INTO TOMORROW...EXPECT MOISTURE TO
CONTINUE TO SPREAD INTO THE NORTH. ISOLATED SHOWERS/THUNDERSTORMS
ARE POSSIBLE ACROSS NORTHERN UTAH SOUTH OF I-80 OVERNIGHT...WHILE
ISOLATED TO SCATTERED SHOWERS WITH EMBEDDED THUNDERSTORMS ARE
EXPECTED TO CONTINUE ACROSS PORTIONS OF CENTRAL AND SOUTHERN UTAH.

A SERIES OF SHORTWAVE FEATURES...ONE OVER SOCAL LIFTING NORTH
THROUGH NEVADA TOMORROW...AND ANOTHER OVER NORTHEAST ARIZONA LIFTING
NORTH THROUGH UTAH...WILL BE THE MAIN DRIVERS OF CONVECTION TOMORROW
INTO TUESDAY. WHILE THUNDERSTORMS ARE POSSIBLE AREAWIDE BOTH
DAYS...FOCUS WILL BE ACROSS THE SOUTH TOMORROW AND ACROSS THE NORTH
ON TUESDAY COINCIDENT WITH THE TRACK OF THESE WAVES...WITH INCREASED
POTENTIAL FOR HEAVY RAIN.

MADE MINOR UPDATES TO FORECAST MAINLY TO TRIM POPS ACROSS THE
NORTHERN FRINGES FOR THE REST OF THE EVENING AND TO INCREASE
OVERNIGHT POP/SKY FOR THE FAR SOUTH PER LATEST OBSERVATIONS AND
RAP/HRRR FORECASTS.

&&

.AVIATION...SOUTH WINDS WILL CONTINUE AT THE SLC TERMINAL THROUGH
THE NIGHT. THERE IS A 10 PERCENT CHANCE OF THUNDERSTORMS IN THE
VICINITY OF THE TERMINAL OVERNIGHT. ANY THUNDERSTORMS WILL PRODUCE
GUSTY AND ERRATIC WINDS.

&&

.FIRE WEATHER...HUMIDITY WILL KEEP RISING OVER THE ENTIRE AREA
TONIGHT THROUGH MONDAY AND REMAIN ELEVATED TUESDAY AS MOISTURE
CONTINUES TO SPREAD NORTH ACROSS THE FIRE DISTRICT. THIS WILL KEEP
SHOWERS AND THUNDERSTORMS ACTIVE ACROSS THE REGION INTO TUESDAY WITH
A GOOD CHANCE OF WETTING RAINS WITH ANY STORMS. A REDUCTION IN
SHOWER AND THUNDERSTORM COVERAGE IS EXPECTED OVER THE SOUTH TUESDAY
AFTERNOON AND ACROSS PRETTY MUCH THE ENTIRE DISTRICT WEDNESDAY.
HUMIDITY WILL ALSO START TO LOWER AGAIN WEDNESDAY BUT SUFFICIENT
MOISTURE WILL REMAIN ACROSS THE REGION FOR AFTERNOON AND EVENING
MOUNTAIN THUNDERSTORMS EACH DAY THROUGH THE END OF THE WEEK.

&&

.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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