551
FXUS65 KSLC 090016
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
615 PM MDT Tue Sep 8 2026

.KEY MESSAGES, Issued 113 PM MDT Tue Sep 8 2026...


- Dry conditions are expected to persist with gradually warming
  temperatures pushing back 5-10 degrees above normal by Thursday.

- Winds increase this weekend ahead of a cold front that could
  bring more precipitation back to portions of the CWA.

&&

.DISCUSSION, Issued 113 PM MDT Tue Sep 8 2026...
Westerly zonal flow will persist through the end of
the week as we remain sandwiched between the active northerly
stream across the northern Intermountain West and a ridge across
the southwest. This will keep dry air in place over the next few
days along with light and diurnally driven winds in addition to
temperatures warming back above average by the end of the week.
It will return to hot conditions across lower Washington county
Wednesday-Friday with highs in the low 100s.

A trough will likely (90% chance) swing through the northern
Intermountain West this weekend that will bring a cold front
through Utah/SW Wyoming late Saturday through early Sunday.
Southwesterly winds will increase ahead of this frontal passage
with ~35% chance of seeing winds 45+ mph across the western half
of Utah. Additionally, moisture starts to creep back into the
eastern half of the state on Friday and Saturday. Guidance
continues to trend towards moisture remaining across eastern Utah.

The airmass behind this cold front will be very similar to this
prior cold front that pushed through over the weekend. The pattern
of warm days and cool nights is upon us and will continue through
the foreseeable future.



&&

.AVIATION...

KSLC...VFR conditions will prevail over the KSLC terminal through
the valid TAF period, with minimal operational concerns forecast.
Northerly winds remain in place through around 04-05Z before
swapping back to a light southerly flow. Periods of light and
variable flow will be possible through the overnight hours before
northerly winds resume around 16Z.

REST OF UTAH AND SOUTHWEST WYOMING...VFR conditions will prevail
across all regional terminals through the valid TAF period. Expect
current north winds across much of the area to return to diurnal
flows overnight.

&&

.FIRE WEATHER, Issued 113 PM MDT Tue Sep 8 2026...
Dry and warm conditions will persist throughout the week due
to westerly winds aloft. This will keep minimum relative humidity
in the teens and upper single digits for much of the area through
much of the week. RH will improve overnight into the 30s and 40s
given the cooler temperatures. Moisture starts to slowly creep
back into the area by this weekend ahead of an approaching cold
front. This cold front will increase southwesterly winds on
Saturday with gusts 30-45 mph expected, particularly across
western portions of Utah. This will result in locally critical
fire weather conditions as min RH will remain in the teens across
locations near the Nevada border. This cold front will move
through late Saturday/early Sunday with winds weakening behind the
front. Moisture associated with this front remains a bit more
uncertain with a low chance of precipitation most likely across
eastern Utah Friday/Saturday.

&&

.SLC WATCHES/WARNINGS/ADVISORIES...
UT...None.
WY...Fire Weather Watch from Wednesday afternoon through Wednesday
     evening for WYZ277.

&&

$$

PUBLIC...Mahan
AVIATION...Webber
FIRE WEATHER...Mahan

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