Sandy, Utah 7 Day Weather Forecast

Wx Forecast - Wx Discussion - Wx Aviation

663
FXUS65 KSLC 070503
AFDSLC

Area Forecast Discussion
National Weather Service Salt Lake City UT
1003 PM MST Fri Mar 6 2026

.KEY MESSAGES...

- Localized downslope and gap winds over 40 mph can be expected in
  Washington County tonight.

- Temperatures will warm through the weekend into early next week
  and will be accompanied by dry conditions.

- A storm system grazing northern Utah on Tuesday will push a
  mostly dry cold front into the area, with gusty winds expected
  across northern Utah and southwest Wyoming.

&&

.DISCUSSION...The storm system that has impacted the forecast area
since Wednesday has transitioned into a mean elongated,
positively tilted trough with the northern stream wave moving
east of the area while the southern stream splits off to the
southwest. High pressure centered off the PacNW and NorCal coast
is nudging inland, and will move into northwest Utah by tomorrow
morning. As such, increasing stabilization of the airmass will
lead to a continued reduction in shower activity this evening,
with most showers ending by midnight.

With a northeasterly flow in place owing to the splitting nature
of the storms and combined with continued cold advection
especially across southwest Utah, expect gusty canyon and
downslope winds across Washington County. While localized wind
gusts in the low to mid 40 mph range are currently observed, over
the past 3 hours, the winds have been running on the lower end
(below the 50th percentile) of the probabilistic guidance from
both the HREF and NBM. As such, will continue to hold off on any
wind highlights, especially given generally low impacts in this
area. Winds should be peaking through around 2 AM before gradually
decreasing into the morning hours.

With the high pressure continuing to build into the area over the
weekend, expect temperatures to trend warmer. Temperatures are
expected to peak on Monday even as the ridge flattens in response
to a low-amplitude trough moving into the PacNW. Max temperatures
on Monday are forecast to rise to around 8-15 degrees above
climatological normals. For SLC, the NBM has a 25th-75th
percentile range of 64-66F for a max temperature.

The aforementioned trough will graze northern Utah for Tuesday,
with models being in good agreement outside of some slight timing
differences. This trough is expected to push a dry cold front
into Utah. Some models do spread precipitation into northern Utah
with the cold front, but if this occurs, any amounts will be
light. Even at the 90th percentile, the NBM has less than 0.2
inches of QPF, and that`s just across the northern Wasatch
Mountains (northern valleys have less than 0.10 inches in the
Cache and less than 0.05 inches elsewhere). The main weather
concern with this cold front will be gusty near-westerly winds,
especially along exposed ridgelines across the northern Utah
mountains and in Uinta County, WY, where gusts over 40 mph will be
common. Models are hinting at another round of gusty winds for
the late Thursday through Friday timeframe with another low-
amplitude trough moving by to the north, although there is a bit
more model spread this far out. However, will just note that the
ECMWF Extreme Forecast Index has a stronger signal for anomalous
winds during this timeframe than with the Tuesday storm.

&&

.AVIATION...KSLC...VFR conditions will prevail through the TAF
period. CIGS in the 6-7 KFT will scatter out before 10Z. Northwest
winds will become southeasterly by 06Z, with a return to
northwesterly winds around 19Z Saturday.

.REST OF UTAH AND SOUTHWEST WYOMING...VFR conditions will prevail
across the area through the TAF period. Lingering CIGS in the 6-8
kft range will scatter out overnight. General north to northeast
winds will persist through Saturday across southern and central
Utah, while diurnally driven wind flows can be expected across
northern areas.

&&

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

$$

Cheng/Seaman

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