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DAILY FORECAST: Scattered rain and isolated thunderstorms today


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IDAHO FALLS — Flooding of fields, lowlands and some rivers continues on Wednesday, March 22.

The Portneuf River in Pocatello is measuring 9.6 feet and minor flooding is occurring along its banks. The river is expected to rise to 10.1 feet by Sunday night causing moderate to significant flooding of agricultural land in the Inkom and Blackrock area. Lowland flooding also will occur along sections of the river in Pocatello from the Portneuf Gap to the Cheyenne Avenue Bridge and downstream of the concrete channel beginning at Sacajawea Park.

Additionally, the Bear River in Bear Lake County has risen above flood stage. The river is measuring 8.6 feet and minor flooding is occurring. Extensive flooding of lowlands and pasture along the river is expected. Water around one foot deep will cover a portion of Pegram Road just north of Pegram. Driveway access will be cut off to some low lying homes next to the river near Dingle.

Roads near Pegram have been damaged by flowing water. Water also is expected to impact U.S. Highway 26, northeast of Carey.

Ditches, streams and creeks are full or nearly full in Oneida, Blaine, Bingham, Bear Lake, Caribou and Minidoka counties.

There is moderate flooding of rural roads and basements in the following communities: Montpelier, Saint Charles, Dingle, Paris, Bloomington, Bern, Ovid, Border Summit, Pegram, Carey, Picabo, Gannett, Fish Haven, Aberdeen, Springfield, Moreland, Pingree, Taber and Sterling.

NWS reports snow melt is causing flooding on U.S. Route 191 north of Malad between Devils Creek Reservoir and Power House Road. Water has also been reported on State Highway 36 between Interstate 15 and Deep Creek Reservoir.

Flooded fields are being reported in the following counties: Caribou, Bear Lake, Bingham and Oneida.

The following cities also remain under a flood watch until Thursday: Burley, Rupert, Heyburn, Stanley, Clayton, St. Anthony, Ashton, Island Park, Driggs, Victor, Malad City, Oakley, Rockland, Henry, Soda Springs, Downey, Lava Hot Springs, Preston, Montpelier, Hailey, Ketchum, Bellevue, Arco, Challis and Mackay.

No major road closures are being reported as of 8 a.m. Wednesday.



Idaho Falls and Rexburg

The Upper Snake River Plain will be mostly cloudy today with scattered rain showers and isolated thunderstorms. Highs of 44 to 54 degrees are expected with southwest winds of 10 to 15 mph. Cloud cover will continue at night with a 20 percent chance of rain. Lows of 30 to 37 degrees are expected with winds of 10 mph.

Pocatello and Blackfoot

The Lower Snake River Plain will see numerous rain showers and isolated thunderstorms this morning with scattered rain and thunder in the afternoon. High of 46 to 54 are expected with southwest winds of 10 to 15 mph. It’ll be mostly cloudy at night with a slight chance of thunderstorms and isolated rain showers in the evening. Temperatures will drop to between 32 and 39 degrees with northwest winds around 10 mph.

St. Anthony, Ashton, Island Park, Driggs, and Victor

The Upper Valley and Teton Valley will be cloudy today with scattered rain and snow showers and isolated thunderstorms. Highs of 44 to 52 are expected. Cloud will remain at night with scattered snow showers and possible thunderstorms. Lows of 28 to 35 degrees are expected.

Arco, Challis, and Mackay

The Lost River region will be partly sunny with scattered snow showers, rain and isolated thunderstorms. Temperatures will rise to between 45 to 55 degrees. It’ll be cloudy at night with isolated snow showers and lows of 26 to 33 degrees.

Henry, Soda Springs, Downey, and Lava Hot Springs

The Caribou Highlands will be cloudy today with scattered rain showers and isolated thunderstorms. Gusty winds are expected with highs of 46 to 56 degrees. At night there will be more rain and possibly up to 3 inches of snow above 7,000 feet. Lows of 30 to 38 degrees are expected.