textproduct: Salt Lake City

KEY MESSAGES, Issued 1011 PM MDT Tue Sep 22 2026

- Dry and stable, aside from some isolated diurnal convection across southern Utah, through the next several days with the next storm chance early next week.

DISCUSSION

Mostly dry and stable conditions will persist through at least Saturday with seasonal temperatures. The one exception to this being across portions of southern/southeastern Utah where some elevated moisture will keep slight chances (<25% chance) for diurnal thunderstorms through Friday.

Southwesterly flow starts to increase this weekend ahead of an incoming trough. This trough will be our next chance for widespread precipitation. Hurricane Polo in the eastern Pacific will make a track to the north as it heads towards the Baja California peninsula. This will help to supply the incoming trough with tropical moisture, if the trough takes a certain trajectory. Currently, 31% of ensemble members (an increase from the previous forecast package of just 23%) bring the trough a bit further south across the Great Basin late Sunday into Monday. This track would be far enough south to really pull in that tropical moisture into Utah resulting in widespread precipitation and potentially flooding concerns. The other 69% of ensemble members keeps the trough a bit further north resulting in a drier solution and most of the precipitation going into eastern Utah and Colorado/New Mexico.

AVIATION

KSLC...VFR conditions will continue at the KSLC terminal through the rest of the forecast period. Winds are and will be diurnally-driven with the terminal currently experiencing light northwesterly flow before switching to light southeasterly flow this afternoon around 4z.

REST OF UTAH AND SOUTHWEST WYOMING...VFR conditions will persist across all TAFs sites. Winds remain generally light with typical diurnal shifts for all regional terminals.

FIRE WEATHER

Mostly dry and stable conditions have settled into the region with warm days and cool nights that will help relative humidity recover each night. Winds will also be light and diurnally driven over the coming days. Moisture stays slightly elevated across southeastern Utah which will keep slight chances for isolated diurnal thunderstorms through the next several days. The next chance for widespread precipitation will be late Sunday into Monday.

SLC WATCHES/WARNINGS/ADVISORIES

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