Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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000
FXUS65 KSLC 270338
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
938 PM MDT FRI AUG 26 2016

.SYNOPSIS...Moisture will remain in place over southern Utah
through Saturday. Drier air will gradually spread into the area
from the north over the weekend and into early next week.

&&

.DISCUSSION...A mean upper trough encompasses the intermountain
region this evening, with a positively tilted shortwave digging
along the back side of this trough through the Great Basin. A
surface boundary associated with this trough stretches from
roughly Rock Springs WY back to near Nephi and Ibapah. North of
this boundary a much drier and more stable airmass resides, while
to the south ample boundary layer moisture allowed for scattered
convection once again. A few of these cells were able to turn to
the right of the mean flow and become strong to severe despite
marginal deep layer shear, likely the result of the updrafts
moving off the terrain into deeper moisture/instability.
Convection has waned in intensity over the last couple of hours as
the boundary layer stabilizes, however a band of convection
continues across southwest and south central UT within an area
of mid level convergence.

Moisture is expected to remain in place across the south on
Saturday while the north remains dry and stable. By Sunday mid
level ridging is forecast to build across the forecast area
allowing for subsidence/drying across the south.

Updated earlier to remove evening POPs from the north as well as
increase evening POPs in the south. Will update the overnight
period in the south to include scattered convection.

&&

.AVIATION...VFR conditions with southerly winds will prevail at
KSLC through morning hours Saturday.

&&

.SLC Watches/Warnings/Advisories...
UT...None.
WY...None.
&&

$$

Seaman

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