textproduct: Salt Lake City

KEY MESSAGES, Issued 1044 PM MST Tue Nov 10 2026

- Dry conditions with valley inversions persisting through Thursday before valley rain and mountain snow arrive this weekend that will help to mix out the inversions.

- Another storm early next week could bring cooler temperatures aloft and more widespread precipitation, but confidence is low on the timing and track.

DISCUSSION, Issued 1044 PM MST Tue Nov 10 2026

High pressure is building back into the area this evening following the weak trough that crossed Utah early this morning. The trough did bring somewhat improved mixing owing to cooler air aloft, although a shallow, elevated inversion layer still exists. With the return of high pressure, which will strengthen into Thursday, expect inversions to strengthen once again, producing some valley haze but otherwise benign weather.

Southerly flow will increase on Friday ahead of the next storm system. These winds may not be strong enough to mix out all valley inversions, but there will be a potential for improvement, especially west of I-15. The storm system itself is still progged to arrive on Saturday as a relatively fast-moving open-wave trough, bringing widespread valley rain and mountain snow to the forecast area. Models are coming into better agreement with this solution, with only around 28% of ensemble members holding on to a weaker trough and drier solution. The NBM now has greater than 0.2 inches of QPF over the mountains and I-15 corridor even at the 25th percentile, compared with yesterday where little to no measurable precipitation was indicated at the 25th percentile. At the 75th percentile, the NBM has many mountain areas exceeding 1 inch with valleys generally greater than 0.2 inches to upwards of 0.75 inches. Snow amounts in the 4-8 inch range is currently forecast for the mountains.

This trough will be the first in what looks to be a fairly active pattern which will continue into late next week. Following a brief break in the weather Sunday into Monday, models have another trough moving into the area on Tuesday. This looks to be a slightly cooler system which has the potential to bring snow to at least the higher valleys (around 5000-6000 feet).

AVIATION

KSLC...High pressure remains more or less overhead. VFR conditions to be maintained with clear to mostly clear skies. Winds expected to remain light (less than 10 kts), and shift near typical diurnal times (to the NW ~18-20Z, to the SE ~02-04Z). Some periods of light and VRB possible, primarily near time of wind switch.

REST OF UTAH AND SOUTHWEST WYOMING...An area of high pressure will remain overhead through the TAF period. At the majority of terminals this will result in continued VFR conds with clear to mostly clear skies and light diurnal to variable winds. The exception will be BR/FG prone terminals (e.g. LGU) where a period of low VIS/CIGS may develop.

SLC WATCHES/WARNINGS/ADVISORIES

UT...None. WY...None.