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Utah forecast: A bit of a smog break, but inversions strengthening ahead
Northern Utahns got a brief windy break from the smog on Thursday, but the inversions trapping pollution in the urban valleys were expected to re-establish their grimy grip going into the weekend.
The National Weather Service had the northern Wasatch Front, from Brigham City south to Bountiful, under a Wind Advisory until 2 p.m. Thursday. East winds of 25-35 mph and gusts up to 50 mph stirred the region's hydrocarbon soup a bit, but the Utah Division of Air Quality still left Salt Lake, Davis, Utah, Box Elder, Tooele and Cache counties under a mandatory ban on solid fuel-burning stove use and open burning as air quality was deemed in the "orange," or unhealthy for sensitive groups category.
Air quality grades for Salt Lake, Davis, Utah and Cache counties were to remain unchanged on Friday, though pollution levels were expected to resume climbing, possibly reaching "red," or unhealthy for everyone by Monday.
A Hazardous Weather Outlook was issued for the western two-thirds of the state due to valley fog in the mornings and evenings over the next seven days, along with periodic canyon winds gusting into the 40-55 mph range.
Temperatures along the Wasatch Front on Friday were to reach the mid- to upper-30s with overnight lows in the mid- to high-teens, the same forecast as for Thursday.
Southern Utah looked for highs in the mid- to upper-50s and lows in the upper-20.
The Utah Avalanche Center rated the mountains above Logan, Ogden, Salt Lake City and Provo as being at "moderate" risk for potentially deadly snowslides. The Uintas were at "considerable" risk; the mountains near Moab were "low."