Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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FXUS65 KSLC 251558
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
958 AM MDT THU AUG 25 2016

.SYNOPSIS...Moisture over southern Utah will spread northward
through Friday. Drier air will return for the weekend and early next
week.

&&

.DISCUSSION...A shortwave trough is swinging through Utah and
southwest Wyoming today from the northwest, and is already
producing some isolated showers across the area as of 15Z.
Convection will increase through the afternoon, especially across
the southern half of the CWA where precipitable water values are
generally 0.5-0.7 inches. Further north, where the airmass is
drier, significantly less shower activity is expected, though
isolated gusty virga activity cannot be ruled out.

Another somewhat active day is expected tomorrow, as another
shortwave lobe off the parent trough swings through the region. A
warming and drying trend is expected for the weekend, with high
pressure building over the Intermountain West.

Updated the forecast earlier to increase POPs and sky cover a bit.
Future updates are not expected, but will have to keep an eye on
northwest Utah to see if thunderstorms manage to develop despite
the dry airmass.

&&

.AVIATION...Winds at the SLC terminal are expected to switch to
the northwest around 16-18Z. There is a 20 percent chance of gusty
outflow winds from showers/thunderstorms impacting the terminal
this afternoon, but most of the thunderstorm activity should
remain south and east of the area.

&&

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

$$

Schoening

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