569 
FXUS65 KSLC 031550
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
950 AM MDT Sat Aug 3 2019

.SYNOPSIS...A moisture surge will advance north into southern Utah 
today, then expand north and east across the remainder of the area 
by Sunday. Showers and thunderstorms could generate locally heavy 
rain through Monday.

&&

.DISCUSSION...High pressure in place over the Four Corners area
continues to pump moisture northward into southern Utah from
Arizona and New Mexico. Morning showers and isolated thunderstorms
in northern Arizona are drifting into southern Utah near Glen 
Canyon and Capitol Reef this morning, and should expand in 
coverage this afternoon. Temperatures are already warming nicely 
and should lend to another warm/hot summer day in store for most 
of the region.

Precipitable water readings in place are near 1 inch in far 
southern Utah and are expected to increase northward and expand 
through Sunday. Steering flow remains quite low while instability 
looks to peak this afternoon and evening, as well as Sunday 
afternoon/evening. This all points to area convection with hazards
of heavy rain and lightning. Any flooding potential will largely
be of focus today for recreation areas down south including
national parks. Edits to going forecast were to increase coverage
in PoPs for far southern Utah, but overall the forecast is in good
shape. Will pay close attention to coverage of convection for the
next few afternoons.

&&

.AVIATION...The SLC terminal will see VFR conditions throughout the 
TAF period. Light southeast winds are expected to shift to the 
northwest between 19Z and 21Z. 

&&

.FIRE WEATHER...(Issued at 525 am MDT)...Moisture will be 
increasing from the south, allowing for increased coverage of 
storms across southern Utah today. Some of the storms across the 
south may produce locally heavy rain. This moisture surge will 
continue through tomorrow, with storms spreading more into 
northern Utah and increasing the potential for wetting rain. After
that, the moisture will decrease somewhat, but lingering moisture
will continue to allow for some convection mainly over the 
mountains and eastern valleys.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...None.
WY...None.
&&

$$

DISCUSSION...Dewey
AVIATION...Billingsley

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