Brighton Resort shut down all of its lifts Saturday, Aug. 29, after heavy storms swept through Big Cottonwood Canyon, ABC4 reported.

The resort's Not Oktoberfest community event also ended early because of the weather. ABC4's report did not include a statement from Brighton Resort, and no reopening timeline for the lifts had been announced as of Monday, Aug. 31.

The storms were part of a broader monsoon system that triggered flood warnings across Utah. The National Weather Service (NWS) warned that excessive runoff could cause flooding in low-lying areas, dry washes and slot canyons. The agency named several recent burn scars as highest-concern zones, including the Cottonwood scar in Piute County, along with the Widemouth 2, Forsyth and Monroe Canyon scars.

As we reported Sunday, Aug. 30, the Aug. 29 storms marked the third storm warning for the Cottonwood Heights area in August.

A Flood Watch remained in effect for portions of central and southern Utah through Monday evening, according to ABC4's Sunday forecast. The NWS Salt Lake City office said on X on Sunday, Aug. 30, that the flash flooding threat would persist through at least that evening and increase throughout Monday. The agency urged anyone planning recreation in rain-sensitive areas to consider other plans.

KSL reported that NWS watches stretched from Heber and Nephi to St. George and Lake Powell. KSL meteorologist Matt Johnson attributed the system to tropical, monsoonal moisture colliding with a low-pressure system over Arizona.

"(When) you clash low pressure and tropical moisture, you're getting activity," Johnson told KSL.

ABC4 reported a 15% risk of excessive rainfall along and east of Interstate 15 on Sunday, covering most of the Wasatch Front. KSL reported scattered showers and thunderstorms could continue into late Monday and early Tuesday.

Residents can monitor conditions through the NWS Salt Lake City office and local emergency management channels.