Singer-songwriter Glenn Frey could give the Utah weather forecast for Wednesday: The heat is on because the pressure's high.
The National Weather Service cites a building high pressure system for the demise of thunderstorms and rain to make way for the return of triple-digit temperatures and dry conditions along the Wasatch Front. Southern Utahns, meanwhile, will continue to bake with highs closer to 110 degrees.
Forecasters also have continued a Hazardous Weather Outlook advisory for the western two-thirds of the state through the weekend. Hot, dry weather will, however, once more surrender to isolated thunderstorms by the week's end.
The Utah Division of Air Quality is not impressed with breathability along the state's populous Wasatch Mountains spine, either. "Yellow," or compromised air quality ratings were in effect through the mid-week for Salt Lake, Davis, Weber, Tooele and Uintah counties; "Green" or healthy grades were in place for Box Elder, Cache, Duchesne, Utah and Washington counties.
The Intermountain Allergy & Asthma web site warns that mold will be "very high" on its pollen index, but other allergens are at low levels.
Salt Lake City's high temperature Wednesday hit 99, up from Tuesday's 98 degrees; Ogden reached 95 and 95, respectively; Provo 98 and 97; Logan 95 and 96; Wendover 97 and 96; Cedar City 96 and 95; St. George 106 and 107; and Moab 100 and 99 degrees.