Local brief
Flood Advisory: eastern Salt Lake Valley and Big Cottonwood Canyon, UT — water over roads until 9:45 p.m. MDT (8:45 p.m. PDT); EB SR-190 closed at Storm Mountain
The National Weather Service has two Flood Advisories for Salt Lake County, Utah, Sunday night: southeastern Salt Lake County, including Big and Little Cottonwood canyons, until 9:45 p.m. MDT (8:45 p.m. PDT), and central Salt Lake County near Red Butte Creek until 9:30 p.m. MDT (8:30 p.m. PDT). UDOT reports eastbound Big Cottonwood Canyon (SR-190) closed by debris at mile post 5. Turn around, don't drown.
Essentials: Two Flood Advisories from the National Weather Service in Salt Lake City. Southeastern Salt Lake County, including Big Cottonwood Canyon, Little Cottonwood Canyon and Mill Creek Canyon, until 9:45 p.m. MDT Sunday, Oct. 11 (8:45 p.m. PDT). Central Salt Lake County, including Salt Lake City, the University of Utah and Sugar House, until 9:30 p.m. MDT (8:30 p.m. PDT). An advisory means minor flooding in low-lying and poorly drained areas and water over roads.
Get prepared: https://noticenearby.com/prepare
Road closure: UDOT Traffic reports eastbound Big Cottonwood Canyon (SR-190) is CLOSED at mile post 5 (Storm Mountain) because of debris on the roadway. UDOT listed the closure at 6:25 p.m. MDT and last updated it at 6:34 p.m. MDT. Check https://www.udottraffic.utah.gov before you drive in the canyons.
What is happening: At 6:41 p.m. MDT, the public reported minor flooding over SR-190 in Big Cottonwood Canyon from thunderstorms, with up to 1 inch of rain. At 6:31 p.m. MDT, radar and rain gauges showed heavy rain over central Salt Lake County, and flows above action stage were reported on Red Butte Creek near 1600 East. Up to 0.75 inch of rain has fallen there.
Where: Places NWS named include Sandy, Murray, Draper, Cottonwood Heights, Midvale, Holladay, South Salt Lake, Millcreek, East Millcreek, Canyon Rim, Mount Olympus, Granite, Cottonwood West, Little Cottonwood Creek Valley, Big Cottonwood Canyon, Little Cottonwood Canyon, Mill Creek Canyon, Salt Lake City, the University of Utah and Sugar House. Watch for flooding near 9th South and 9th East.
What to do: Turn around, don't drown. Most flood deaths happen in vehicles. Do not drive on flooded roads, stay away from fast-moving creeks, and do not drive around closures or barricades. A Flood Watch also covers the Salt Lake Valley and the Wasatch Mountains through 6 p.m. MDT Monday, Oct. 12 (5 p.m. PDT).
Stay informed: Check https://www.weather.gov/slc/ for the latest from the National Weather Service, follow Salt Lake County Emergency Management and the Utah Division of Emergency Management (https://dem.utah.gov), and check roads at https://www.udottraffic.utah.gov. Turn on emergency alerts on your phone.
Sources: National Weather Service Salt Lake City Flood Advisories via api.weather.gov (https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.d981b5593075019268c5601f0dd9d2f78d07905d.001.1 and https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.92e1475fe4a5b10b1a1503fe6fa670ff8a9c83e1.001.1) and Flood Watch (https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.eb8193b8fbd42ea37824d6a9b67048487fdf921c.002.1); UDOT Traffic incident, EB Big Cottonwood Canyon at MP 5 (https://www.udottraffic.utah.gov). Updated 6:40 p.m. PDT (7:40 p.m. MDT) Sunday, Oct. 11. Notice Nearby wrote this brief in its own words. More Salt Lake County notices: https://noticenearby.com/ut/salt-lake
Source: the public notice on this register NN-ENV-ut-salt-lake-flood-advisory-2026-10-11 · National Weather Service Salt Lake City Flood Advisory · UDOT Traffic.
This is a Notice Nearby local brief — an in-house explainer written from a government-posted notice on this register. It is not official minutes, not a newspaper story, and not Legal Publication.