Utah forecast: Here comes the rain
Flash Flood Watch • Central, Southern Utah slot canyons, slopes at risk.
Published: August 23, 2012 10:05AM
Updated: August 23, 2012 01:41PM
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Rick Egan | The Salt Lake Tribune Tim Loveday enjoys the last light of the day on the Great Salt Lake, in his Tartan 34, Wednesday, Aug. 22, 2012.

There’s a Neil Young-esque forecast for Utah: “See the sky about to rain, broken clouds and rain.”

While the National Weather Service mentions nothing about trains, or whistles blowing through brains, it did issue a Flash Flood Watch for central Utah and all of southern Utah, an area of thunderstorms and isolated, heavy rainfall stretching from Provo south to Milford, Escalante, St. George and Monticello.

Of particular concern to forecasters were the Flash Flood Watch area’s slot canyons, normally dry washes and slopes recently denuded by wildfires. The heaviest rainstorms were expected south of Interstate 70. The advisory extended through Thursday evening, but the chance for periodic and heavy rainfall extended into the weekend.

However, those storm clouds will give the state lower temperatures and freshen the atmosphere. High temperatures in northern and southern Utah were expected to be mostly in the upper-80s, a drop of 10-20 degrees, respectively.

Air quality, in the “Yellow,” or compromised category for much of this week, was to improve to “Green,” or healthy levels Friday statewide, according to the Utah Division of Environmental Quality.

Salt Lake City’s high temperature for Friday was pegged at 90, up slightly from Thursday’s 87; Ogden looked for 86 and 85, respectively; Provo 89 and 86; Logan 86 and 88; Wendover 90 and 91; Duchesne 90 and 87; Cedar City 80 and 77; St. George 93 and 88; and Moab 90 and 83 degrees.

remims@sltrib.com