Area Forecast Discussion
Issued by NWS Salt Lake City, UT

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690
FXUS65 KSLC 211644
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
1044 AM MDT SAT MAY 21 2016

.SYNOPSIS...A low pressure system will slowly cross the region over
the weekend, with unsettled conditions lingering into next week.

&&

.DISCUSSION...The heavier band of precipitation that moved from
west to east early this morning and during the overnight hours,
continues eastward over the Wasatch Front and Back. Impressive
rainfall totals spanning the last 12 hours along the Wasatch Front
range from one quarter to over an inch and a quarter. Quite the
spatial coverage of rainfall amounts, with more on the way today.
The jet from the upper level low continues to push into southwest
Utah this morning with the low position centered across southeast
Oregon. As can be seen on IR and visible satellite this morning,
a clear slot is developing across western Utah and may lead to
just enough thermal heating this afternoon to be the driving force
of afternoon convection.

With temperatures holding steady for several hours this morning
and extensive cloud cover, adjusted daytime temps downward
slightly. However, if we see enough clearing this thinking may
backfire. Winds across southeast Utah continue to be strong this
morning and at this time the wind advisory remains in effect
through this evening.


&&

.AVIATION...Winds at the SLC terminal are expected to remain
southerly through about 21Z before a brief shift to the west-
northwest. Gusty outflow winds from showers and thunderstorms
through mid-day. A 30 percent chance north winds do not develop
and hold this afternoon, but will highly depend on shower
activity. Ceilings already improving as of 16z, and will continue
to hang around 6000k-7000k feet as shower activity dissipates.

&&

.SLC Watches/Warnings/Advisories...
UT...Wind Advisory until 9 PM MDT this evening for UTZ013-020-021.

WY...None.
&&

$$

Dewey

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