textproduct: Salt Lake City
This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.
KEY MESSAGES
- Patchy fog is expected to develop tonight in prone areas such as the Cache Valley.
- Conditions remain dry and mild areawide through a majority of the week, with the next chance for precipitation arriving next weekend.
DISCUSSION
With clear skies in place across the region, patchy fog is expected to develop in fog prone areas such as the Cache Valley. Fog will dissipate through Sunday morning, with additional chances for fog development overnight Sunday decreasing due to increasing cloud cover across northern Utah.
Quiescent conditions with a gradual warming trend prevails into early this upcoming week as longwave ridging remains the dominant feature across the region. Warming aloft through this period will allow valley inversions to strengthen, resulting in hazy skies. A weak shortwave trough is slated to traverse northern Utah on Tuesday, ushering in slightly cooler air aloft, which may assist in mixing out some valley haze. Following the departure of this weak wave, high pressure re-amplifies across the region in response to a trough deepening off the west coast.
Ensembles have diverged in the progression of the aforementioned trough as we head into next weekend, with around 20% of members supportive of a shortwave ejecting off the parent trough and bringing increased chances for precipitation as early as Saturday. The remainder of models eject this energy too far south for any meaningful precipitation outside of slight chances across southern Utah. Regardless, the pattern looks to remain more progressive, though the exact storm track is uncertain at this point.
AVIATION
KSLC...VFR conditions will prevail through the TAF period. Diurnal wind shifts are expected, with southeast winds through Sunday morning transitioning to northwest around 18Z.
REST OF UTAH AND SOUTHWEST WYOMING...VFR conditions with light winds will prevail across the area through the TAF period. There is a 20% chance dense fog develops at KHCR and KLGU between 10-16Z, which would reduce CIGS/VIS near or below airport minimums.
SLC WATCHES/WARNINGS/ADVISORIES
UT...None. WY...None.
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