textproduct: Salt Lake City

KEY MESSAGES

- Temperatures will remain around 5 to 15 degrees above normal through Saturday.

- A more active pattern will bring rain and high elevation snow later Saturday into Sunday, with unsettled conditions likely persisting into early next week.

DISCUSSION

An upper trough continues to translate through the Desert Southwest this evening, while shortwave ridging builds upstream across the western Great Basin. Shallow, high based convection developed earlier this afternoon/evening across the southern half of the CWA, and has largely been waning over the last couple of hours as the upper trough moves away from the region.

The upstream shortwave ridge will build across the forecast area Tuesday, allowing for a warming trend of ~5F across southern Utah, and 1-3F across the north. This will push daytime temperatures 10-15 degrees above climo across the area. Slight cooling is forecast across northern Utah Wednesday, in response to an upper trough passing well to the north, while little change in max temperature is forecast across the south.

Temperatures remain very mild through the end of the week and into Saturday, as a general southwesterly flow develops across the Great Basin. This is in response to an upper low forecast to dig along the California Coast. This low will eject inland across the Great Basin late Saturday into Sunday, accompanied by fairly widespread precipitation and cooler temperatures. This precip will spread into southern and perhaps central Utah by late Saturday afternoon through Saturday evening, then focus across northern Saturday night into early Sunday. Snow levels look to remain around 8 kft through much of the event. Another upstream low is forecast to move inland later Sunday into Monday, however confidence is fairly low with respect to track, timing and evolution of this feature.

REST OF UTAH AND SOUTHWEST WYOMING

KSGU is currently experiencing elevated winds and gusts, likely subsiding by 08z. VFR conditions will persist across all of our TAF sites. Diurnal wind shifts are expected to occur, and gusty winds are expected at all sites with the highest confidence of gusts >20kts at KEVW. There is a low confidence scenario of gusty showers impacting KLGU tomorrow afternoon, although confidence is too low to include in the TAF at this time.

SLC WATCHES/WARNINGS/ADVISORIES

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