WEATHER & ROADS: Winter weather advisory issued in eastern Idaho

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U.S. Highway 20 in Fremont County.

IDAHO FALLS — A winter storm is expected to hit a significant number of eastern Idaho counties this weekend.

The National Weather Service has issued a winter weather advisory from 6 a.m. Saturday to 5 a.m. Sunday in the following counties: Lemhi, Butte, Custer, Fremont, Teton, Clark, western Madison, western Bonneville, Caribou, Bannock, Franklin and Oneida. The warning is primarily in higher elevation areas — Idaho Falls, Rexburg and Pocatello are not included in the advisory.

Approximately 6 to 12 inches of snow is expected in the mountains and between 1 to 4 inches in the valleys.

The storm may reduce road visibility at times due to patchy blowing snow. Officials advise drivers to slow down.

A more severe winter weather warning has been issued in southern Montana and western Wyoming. Mountainous areas will see between 14 to 18 inches of snow. About 26 inches is predicted in some areas. There is heightened avalanche danger in these areas.

CHECK OUT THE NWS WEATHER MAP HERE

SEE THE 7-DAY FORECAST HERE

Friday’s Forecast:

The Idaho Falls and Rexburg area will see rain throughout the day with highs of 45 to 52 degrees. Southwest winds of 10 to 15 mph in the morning will increase to between 20 to 30 mph in the afternoon and evening. The rain and wind will continue during the night with lows of 33 to 40 degrees.

The Pocatello, Blackfoot area will be rainy today with southwest winds of 10 mph in the morning, increasing to between 15 to 25 mph in the afternoon. Highs of 44 to 53 degrees are expected. During the night the rain and wind will continue with lows of 34 to 41 degrees.

The Upper Valley and Teton Valley will see rain and snow today. Between 4 to 5 inches of snow are possible above 6,600 feet, with highs of 38 to 48 degrees. During the night the snow and rain will continue. An additional 4 to 7 inches of snow is possible above 6,500 feet during the night with lows of 27 to 36 degrees.

The Lost River area will see snow and rain throughout the day. It’ll be breezy with a possible snow accumulation of 2 to 3 inches. Highs of 40 to 50 degrees are expected. An additional 2 to 6 inches of snow are expected above 6,100 feet during the night. Lows of 25 to 35 degrees are predicted.

The Caribou Highlands will also see rain and snow today. Between 1 and 3 inches of snow is possible with highs between 43 to 51 degrees. The rain and snow will continue at night with lows of 32 to 41 degrees.

Road Conditions:

No road closures or major hazards are being reported on eastern Idaho highways.

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