Spring snow showers to hang around northern Utah
Weather » Conditions will remain cool, unsettled through Saturday
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Springtime in the Rockies can mean snow showers and that's what northern Utah valleys will likely see through Thursday and Friday and even into Saturday, according to the National Weather Service.

The potential exists Thursday for "lake-effect" snows that could be heavy in some mountain areas.

Temperatures will remain well below average in northern Utah with highs in the mid-40s Thursday, climbing to near 50 by Friday, said meteorologist Mike Conger. Average temperatures for this time of year in Salt Lake City are 64 degrees for the high and 41 for the low.

Lake-effect snows Thursday and Thursday night could bring 10 to 20 inches of snow to the Wasatch Mountains. Central Utah Mountains could get eight to 14 inches of snow.

The lake-effect occurs when cold air moves across the relatively warmer waters of the Great Salt Lake, picking up moisture and dumping it on the valleys and mountains of the Wasatch Range.

Storminess through Friday could deposit several inches of snow along the Interstate 15 corridor north and south of Beaver, Conger said.

Snow showers could continue into early Saturday in northern Utah, before this spate of moisture winds down.

"But don't look for any prolonged period of dry, warm weather when it's over," the meteorologist said. "We have a series of systems that will move through. It's typical spring weather."

The forecast for the St. George area calls for highs near 60 today with a 20 percent chance of rain improving to partly cloudy on Friday. On Saturday, when the Ironman competition takes place, conditions will be partly cloudy with highs near 70. Lows will be in the low to mid-40s.

Wind gusts at the front edge of the cold front reached 83 mph late Tuesday and early Wednesday at the marina on the south end of the Great Salt Lake. A semi-rig was blown over on I-80 in that area.

Despite the big blow accompanying the cold front, precipitation levels in valley locations amounted to less than one-quarter inch of water by Wednesday afternoon, Conger said.

High winds also led to a number of power outages in northern Utah. The largest was in Millcreek where electricity was interrupted to about 7,500 households and businesses, according to Rocky Mountain Power. Another 6,000 customers were without power in Holladay and Murray late Tuesday.

Another outage occurred in Murray at 10:12 a.m. Wednesday, said Rocky Mountain spokesman Jeff Hymas. Some 936 customers were without power due to a burned power pole. Crews anticipated restoring power by 8 p.m. Wednesday.

csmart@sltrib.com