Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 300230
AFDSLC

AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SALT LAKE CITY UT
830 PM MDT FRI MAY 29 2015

.SYNOPSIS...HIGH PRESSURE WILL STRENGTHEN ACROSS THE INTERIOR
WEST THROUGH THE WEEKEND BRINGING A WARMING AND DRYING TREND TO
THE REGION.

&&

.DISCUSSION...AN UPPER RIDGE IS CENTERED OVER THE WESTERN GREAT
BASIN THIS EVE WITH A NORTHWEST FLOW OVER OUR CWA. ENOUGH MOISTURE
AND INSTABILITY REMAINED ACROSS THE AREA TODAY FOR ISOLATED
CONVECTION ONCE AGAIN. THIS ACTIVITY WAS WEAKER THAN YESTERDAY AND
MOSTLY SHORT LIVED OVER THE NORTH WHERE CELLS THAT FORMED OVER THE
UINTA MTNS IN THE AFTN HAVE NOW JUST ABOUT DIED OFF.

APPARENTLY BETTER FORCING WAS OVER SWRN UT WHERE STORMS WERE MORE
NUMEROUS AND APPEARED BETTER DEVELOPED. RADAR INDICATED A FEW
POCKETS OF RAINFALL OVER 1 INCH IN A BAND JUST SOUTH OF CEDAR
CITY. THESE STORMS ARE ALSO WEAKENING BUT COULD PERSIST A FEW MORE
HOURS BEFORE DYING OFF FOR THE NIGHT.

THE UPPER RIDGE AXIS SHIFTS TO THE UT/NV BORDER BY TOMORROW AFTN
AND TO THE UT/CO BORDER BY 00Z MON. THE FLOW AT LOWER LEVELS FLIPS
TO SWLY BY LATE TOMORROW AND BRINGS STRONG AIRMASS WARMING WITH
TEMPS RISING 5-10 DEG FROM TODAY. THE LOW LEVEL SWLY FLOW
INCREASES A BIT SUN AND WARMS A LITTLE MORE WITH TEMPS BUMPING UP
A FEW MORE DEGREES. SO MID TO UPPER 80S IS GOING TO FEEL QUITE
WARM AFTER THE PERIOD OF COOL WET WX WE HAVE BEEN HAVING.

EXPECT ISOLATED MTN CONVECTION BOTH DAYS BUT HEAVY RAIN SHOULD BE
MUCH LESS LIKELY AS THE AIRMASS DRIES.

UPDATED EARLIER TO RAISE POPS A LITTLE MORE FOR SWRN UT FOR THE
EVE. WILL UPDATE AGAIN TO REMOVE POPS AND REDUCE SKY COVER OVER
THE NORTH BUT WILL LEAVE SOUTH AS IS THRU MIDNIGHT.

&&

.AVIATION...LIGHT NORTH WINDS AT THE SLC TERMINAL WILL SHIFT TO
SOUTHEASTERLY BETWEEN 03-04Z THIS EVENING.

&&

.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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