textproduct: Salt Lake City

KEY MESSAGES

- A marginal risk of excessive rainfall will continue across much of Utah through the next five days. Expect an increased threat of flash flooding, primarily across slot canyons, normally dry washes, slick rock areas, and recent burn scars.

DISCUSSION

High pressure will remain in a favorable location to continue the ongoing monsoon surge through at least the next seven days across the Beehive State. First though, all remaining heat headlines were allowed to expire earlier this evening.

Another round of showers and thunderstorms with the threat of heavy rainfall will develop Monday afternoon across much of the region. Again, like previous days, the most flood prone locations will continue to be slot canyons, normally dry washes, slick rock areas as well as recent burn scars.

Looking ahead, the Weather Prediction Center has Utah outlooked in a marginal risk for flash flooding through the next 5 days...and guidance suggests this monsoon surge should continue into at least next weekend if not early next week.

AVIATION...KSLC

The SLC terminal will see primarily VFR conditions through Monday. Southerly winds are likely to persist through the night and into Monday morning, with northwesterly winds expected to develop around 19-20z. However, there is a 40% chance of thunderstorms over/near the terminal between 19-23z which could result in gusty and erratic winds. Southerly drainage winds may develop earlier than normal on Monday evening ahead another potential round of showers and thunderstorms developing between 01- 04z.

REST OF UTAH AND SOUTHWEST WYOMING...Generally VFR conditions will prevail across the airspace tonight through Monday. Scattered showers and thunderstorms will redevelop Monday afternoon. Pockets of heavy rain and gusty winds may bring brief MVFR conditions and ceilings that could result in temporary mountain obscurations. Gusty and erratic outflow winds can be expected near showers and thunderstorms. Outside of showers and thunderstorms, generally light diurnal winds can be expected. Locally reduced visibility in smoke will occur near several large wildfires including near Richfield, near Cedar City, near Morgan, and between Ephraim and Huntington.

FIRE WEATHER, Issued 1256 PM MDT Sun Aug 9 2026

Monsoonal moisture will continue to gradually increase statewide through at least Wednesday, resulting in increasing coverage of showers and thunderstorms, particularly across higher terrain. Today, storms will feature a mix of strong outflow winds statewide and some wetting rains primarily across southern Utah. Wind gusts could reach 50-60 mph with collapsing storms. As moisture continues to increase this week, relative humidities and wetting rain chances will increase alongside decreasing temperatures. Daily afternoon showers and thunderstorms will persist likely through the week, with fairly light winds expected outside of any outflow.

SLC WATCHES/WARNINGS/ADVISORIES

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