textproduct: Salt Lake City

KEY MESSAGES, Issued 1032 PM MDT Sun Aug 2 2026

- Very hot temperatures will bring an increased threat of heat related illness to portions of southern and eastern Utah Monday. See Excessive Heat Warnings and Heat Advisories for more information.

- Critical fire weather conditions will continue across eastern and south central Utah ahead of a dry cold front Monday afternoon and evening.

- Across the San Rafael Swell and western Uinta Basin, gusty northwest winds and low humidities will continue to bring critical fire weather conditions through Tuesday. Elevated to locally critical fire weather conditions will continue in these areas into Wednesday.

- There is a marginal risk of excessive rainfall Thursday for portions of southwest and south central Utah. Highest threat areas will be slot canyons, normally dry washes and recent burn scars.

DISCUSSION, Issued 1032 PM MDT Sun Aug 2 2026

The forecast for the next several days will be hot, dry, with increasingly smoky skies for portions of the state. A dry cold front will continue to shift south across northern and central Utah through Monday morning, slowing or stalling across central Utah waiting until the upper level trough shifts into the High Plains before finally clearing southern Utah late Monday into early Tuesday.

The Widemouth 2 wildfire has produced prolific smoke across central Utah this afternoon and evening. Smoke modeling shifts this smoke into the Nephi area and east into the upper Sanpete Valley, Castle Country and the Wasatch Plateau overnight. This will cause decreasing air quality as well as reduced visibility in these areas. Price Airport has been reporting periods of visibility near 4-5SM...and this may worsen overnight.

Additional wildfires to the north and west of Utah will bring smoke aloft into much of Utah over the next several days. The Utah Department of Environmental Quality is forecasting several monitored basins across northern Utah to continue to see conditions meeting the orange/unhealthy for sensitive groups threshold through at least Monday if not Tuesday depending on the basin. Aside from air quality concerns, smoke in the area will also reduce visibility. For more information on how to mitigate the health impacts of smoke, please see air.utah.gov.

Hazy conditions from smoke are likely to continue through at least Wednesday across the region...with the worst conditions near active local wildfires like the Widemouth 2.

As far as heat, Excessive Heat Warnings were extended through Monday across the lower Washington County and Zion National Park areas. Temperatures may be 1 to 2 degrees lower than Sunday, however, overnight lows will remain near to above 80F, exasperating cumulative heat stress. Otherwise, going heat headlines remained in place.

Red Flag Warnings remain in effect for portions of eastern and southern Utah Monday and Tuesday. See the fire weather discussion for more information.

As a portion of the ensemble suite continues to suggest monsoonal moisture will build into southwest and south central Utah by Thursday. The Weather Prediction Center has outlooked this area in a marginal risk for excessive rainfall Thursday afternoon into Thursday night.

AVIATION, Issued 1032 PM MDT Sun Aug 2 2026

KSLC, Issued 1032 PM MDT Sun Aug 2 2026... A dry cold front will arrive likely between 0530-0600z, producing gusty northerly winds between 20-30kts. After 07-08z, winds will lighten and become light and variable overnight, potentially becoming southeasterly between 10-13z. Northwesterlies will return after 15z. VFR conditions are likely to prevail, though wildfire smoke may result in minor slantwise VIS reductions.

REST OF UTAH AND SOUTHWEST WYOMING...A dry cold front currently moving through northern Utah will bring a transition to northerly to northwesterly winds with gusts to 20-30kts overnight. This front will move through the Wasatch Front by 07z and will continue to weaken thereafter. VFR conditions will prevail for most areas, though wildfire smoke may result in slantwise VIS reductions, primarily aloft, as well as surface VIS reductions in adjacent valleys to local wildfires...especially in central Utah.

FIRE WEATHER

A dry cold front will continue to cross northern and central Utah tonight into Monday morning. This will bring a shift to northwest to west winds to many locations along with a slight improvement in humidities. Areas south and east of the cold front Monday will see another round of critical fire weather conditions, after a night of little to no recovery. While the front will finally cross through the remainder of the state later Monday, dry and breezy conditions will continue across eastern Utah Tuesday. This will bring another round of critical fire weather conditions to the San Rafael Swell and western Uinta Basin Tuesday afternoon and evening. Elevated to locally critical fire weather conditions may continue across these same locations into Wednesday.

SLC WATCHES/WARNINGS/ADVISORIES

UT...Red Flag Warning until 9 PM MDT Tuesday for UTZ482.

Heat Advisory until 9 PM MDT Monday for UTZ114-120-121.

Red Flag Warning from noon Monday to 9 PM MDT Tuesday for UTZ489.

Red Flag Warning until 10 PM MDT Monday for UTZ481-483-484-498.

Extreme Heat Warning until 9 PM MDT Monday for UTZ123-124- 128>131.

WY...Red Flag Warning until 9 PM MDT Monday for WYZ277.