Hot, muggy and occasionally wild: there’s your Utah weather forecast at the mid-week.
The National Weather Service predicts high temperatures around 100 degrees along the Wasatch Front on Thursday, mirroring Wednesday’s forecast, along with unusually high humidity accompanying thunderstorms and rain showers.
Southern Utahns have the same climatological expectations with this exception: Temperatures will be well above 100 degrees during the daytime hours on both days.
Forecasters placed the western two-thirds of Utah under a Hazardous Weather Outlook advisory through the remainder of this week and into next. They warned of locally heavy rainfall triggering flash floods in slot canyons and mudslides on mountain slopes, particularly those recently denuded of vegetation by wildfires.
Isolated incidents of street and home flooding, including one home in Alpine Tuesday night, and some mountain road closing slides already have occurred, though no injuries had been reported. Utah Department of Transportation spokesman Kevin Kitchen aid a 13-mile stretch of State Route 31 in Emery County was expected to remain closed until Wednesday evening as crews worked to clear an overnight mudslide.
Air quality in Salt Lake, Davis and Weber counties was rated "Yellow," or compromised for Thursday, though the Utah Division of Air Quality awarded "Green," or healthy breathing grades to the rest of the state’s monitoring areas.
The Intermountain Allergy & Asthma web site reported mold at "very high" and chenopods at "moderate" levels on its allergens index.
Salt Lake City’s high temperature for Thursday was to be 100, up from Wednesday’s forecast for of degrees; Ogden expected 96 and 95 degrees, respectively; Provo 97 and 96; Logan 96 and 94; Wendover 96s; Duchesne 89s; Cedar City 92 and 91; St. George 105 and 106; and Moab 94 and 95 degrees.
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