Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 290335
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
935 PM MDT MON JUL 28 2014

.SYNOPSIS...A VERY MOIST MONSOON AIRMASS WILL REMAIN OVER THE AREA
THROUGH TUESDAY. SOME PARTIAL DRYING OF THE AIRMASS WILL OCCUR
LATER IN THE WEEK.

&&

.DISCUSSION...A LARGE CIRCULATION CENTER IS APPARENT ON WATER
VAPOR IMAGERY OVER NWRN AZ THIS EVE WITH NEW CONVECTION CONTINUING
TO DEVELOP IN ITS VICINITY TO OUR S. SEVERAL SMALLER CENTERS WERE
NOTED THROUGH THE AFTN IN THE BROAD DEFORMATION ZONE EXTENDING
AROUND THE MAIN CENTER AND WERE ASSOCIATED WITH VERY ACTIVE
CONVECTION AND AREAS OF HEAVY RAIN. ONE OF THESE LIFTED THRU THE
WASATCH FRONT LATE IN THE DAY WITH POCKETS OF HEAVY RAIN IN THE
SALT LAKE VALLEY AND OVER THE WASATCH MTNS. MODELS INDICATE THIS
CENTER IS MAINLY ABOVE 500 MB. THE MAIN CENTER BELOW THAT LEVEL IS
DEPICTED OVER NWRN UT WITH A TROF EXTENDING SWWD INTO SRN CA.

EXPECT BROAD LIFT NORTH OF THE MAIN CIRCULATION TO KEEP SHOWERS
GOING ACROSS MUCH OF THE CWA OVERNIGHT WITH SOME AREAS OVER THE
NORTH CLOSER TO THE LOWER LEVEL CENTER RECEIVING PERSIST RAIN
RESULTING IN HEAVY ACCUMULATIONS DUE TO DURATION NOT INTENSITY.
DONT EXPECT FLASH FLOODING FROM THIS AS A RESULT. THE THREAT OF
HEAVY RAIN HAS DIMINISHED ACROSS THE SOUTH AND ALLOWED THE FLASH
FLOOD WATCH FOR THAT PART OF THE STATE TO EXPIRE.

EXPECT SHOWERS TO DIMINISH FROM THE SOUTH TOMORROW ALTHO
SUPPRESSION IN THE WAKE OF THE UPPER CENTER DOES NOT APPEAR TO BE
ALL THAT STRONG SO DIURNAL ACTIVITY COULD STILL DEVELOP ACROSS THE
SOUTH IN THE AFTN. THE LOWER CENTER AND TROF AXIS IS SLOW TO
CLEAR THE NORTH AND PORTIONS OF THE FAR NRN AND NERN CWA COULD SEE
RAIN THRU THE DAY.

EXPECT GRADUAL DRYING WED BUT ANOTHER WEAK SHORT WAVE LIFTS THRU
THE GREAT BASIN AND ACROSS THE CWA THU/THU NIGHT WITH ANOTHER
THREAT OF MORE WIDESPREAD SHOWERS. A STRONGER DRYING TREND IS
FORECAST FOR THE CWA FRI INTO SAT AS THE RIDGE AXIS SETS UP ALONG
THE UT/NV BORDER.

UPDATED EARLIER TO RAISE POPS MOST AREAS OVERNIGHT. NO ADDITIONAL
UPDATES PLANNED.

&&

.AVIATION...VFR CONDITIONS ARE EXPECTED THROUGH THE NIGHT AT THE
SLC TERMINAL. WINDS WILL REMAIN SOUTHEASTERLY INTO THE MORNING.
SHOWERS WILL PASS EITHER NEAR OR OVER THE AIRFIELD AT TIMES
THROUGH THE NIGHT AND INTO TUESDAY. SOME OF THE HEAVIER SHOWERS
COULD LOWER CIGS BELOW 7000 FT AND RESULT IN BRIEF MVFR VSBYS.
BRIEF GUSTY AND/OR ERRATIC WINDS ARE ALSO POSSIBLE NEAR THE
SHOWERS. THERE IS ONLY A 10 PERCENT CHANCE OF A THUNDERSTORM
DIRECTLY IMPACTING THE TERMINAL DURING THIS TIME.

&&

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