960
FXUS65 KSLC 130432
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
1032 PM MDT Wed Aug 12 2026

.KEY MESSAGES...

- Monsoonal moisture looks to bring daily chances for showers and
thunderstorms across much of UT through Friday before drying out
this weekend.

- Below-normal temperatures look to develop tomorrow, persisting
through Monday before a return to seasonally-normal temperatures.

- Monsoonal moisture may begin to return to the area Monday,
  potentially persisting through much of next week.

&&

.DISCUSSION...High pressure over the southern Plains today will
be shifting westward through the end of the week, allowing more of
a southwesterly flow to spread into the area. Afternoon PWATs
today ranged from 0.9 inches across far northern and northeast
Utah and southwest Wyoming to 1.2 inches across southwest Utah.
This allowed scattered showers and thunderstorms to develop over
the area again, most of which should gradually diminish
overnight. However, isolated rain showers will remain possible
through the night.

For Thursday, PWATs will remain largely similar to today, then
trend slightly downward for Friday. However, in between the ridge
axis to the east and a mean trough developing to the west, a
series of shortwave weather disturbances is progged to eject
across Utah Thursday and Friday. Larger-scale lift and increased
jet support will favor more widespread and stronger storms, which
will in turn bring an increased potential for heavy rain, small
hail, and gusty winds. Thursday should generally feature the most
active weather day this week, as thunderstorm activity may
decrease a bit for Friday owing to the moisture trends.

For Saturday and Sunday, PWATs continue to trend downward, to 1
inch or less in most areas. As a result, convective activity will
decrease for the weekend, although likely not completely dry, as
some terrain-based showers are still anticipated. Thereafter,
there is still some model spread in relation to the ridge position
for next week and whether significant moisture will return. There
are some indications that moisture may return as early as Monday.
Latest deterministics, however, are not very promising in that
regard, and NBM trends currently keep PWATs and PoPs on the lower
side through at least the middle of next week. After cooler
temperatures through Friday, temperatures will start to gradually
climb again over the weekend, returning closer to climatological
normals by the early to middle part of next week, especially if
the airmass does remain on the drier side.

&&

.AVIATION...KSLC...Showery conditions continuing across northern
Utah into early Thursday morning brings a slight chance for rain
showers to impact the terminal. Impacts will be limited outside of
winds becoming more variable at times. More widespread convection
develops Thursday afternoon, with a 30% chance for thunderstorms to
impact the terminal mainly in the 20z-02z window. Storms will be
capable of producing gusty and erratic outflow winds to 30 kts in
addition to heavy rainfall that could reduce VIS to MVFR briefly and
lower CIGS <6kft. Outside of outflow winds, generally light
southeasterly winds prevail overnight then become northwesterly
after 19z.

REST OF UTAH AND SOUTHWEST WYOMING...Widely scattered showers and
thunderstorms continue across the southern portion of the airspace
into early Thursday morning. A brief lull in activity is expected
across the northern portion of the airspace this evening, before
scattered showers and thunderstorms become more widely spread
Thursday morning. Widespread convective activity is expected to
develop again after 18-20z Thursday across much of the airspace,
with potential to produce gusty and erratic outflow winds to 40 kts
as well as heavy rainfall that could push VIS into the MVFR category.

&&

.FIRE WEATHER, Issued 1212 PM MDT Wed Aug 12 2026...
The Four Corners high pressure continues to persist
resulting in continued monsoonal moisture across UT bringing
daily showers and thunderstorms to much of the state. While a
widespread wetting rain is not expected this afternoon, Thursday
afternoon appears to bring the highest chance of a wetting rain
through this stretch across much of the state as the high pressure
slides east somewhat with a storm system moving in its wake
through Friday. Come Saturday and Sunday, a drier airmass moves
into the state keeping showers and thunderstorms mostly confined
to higher terrain. On Monday, high pressure moves back west
somewhat potentially bringing monsoonal moisture back to UT.

&&

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

$$

PUBLIC...Cheng
AVIATION...Whitlam
FIRE WEATHER...Worster

For more information from NOAA`s National Weather Service visit...
http://weather.gov/saltlakecity