Utah forecast: Isolated snow showers, then ..

Air quality • 'Red' air alerts remain in place for Wasatch Front.

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Isolated snow showers Thursday were forecast to give way to gradually clearing skies Friday in northern Utah.

The National Weather Service predicted that high temperatures along the Wasatch Front in the upper-30s both days with overnight lows in the teens to low-20s.

The modest storm activity was not changing the region's poor air quality, however. The Utah Division of Air Quality left in place its "Red," or unhealthy breathability ratings Friday for Salt Lake, Davis, Weber, Cache, Utah and Box Elder counties. Tooele, Duchesne and Uintah counties had "Yellow," or compromised air quality grades.

Southern Utah's forecast called for sunny days with highs near 60 degrees and winds of 10-20 mph.

The Utah Avalanche Center placed risk for potentially dangerous mountain snowslides at "moderate" for the entire state both Thursday and Friday.

Salt Lake City's high of 20 degrees Thursday was to be followed by an overnight low of 23 and a daytime high Friday of 39 degrees; Ogden looked for 36, 22 and 36 degrees, respectively; Provo 41, 20 and 41; Logan 32, 15 and 30; Wendover 39, 18 and 36; Duchesne 27, 5 and 29; Cedar City 42, 11 and 45; St. George 60, 32 and 61; and Moab 42, 21 and 42 degrees.

remims@sltrib.com

Twitter: @remims

Utah forecast: Isolated snow showers, then gradually clearing skies