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Flooding expected in Wyoming Monday; flash flooding possible around Montana burn scar

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CASPER, Wyo. — Areas of Wyoming are expected to see some minor to moderate flooding on Monday, and flash flooding could continue around the Robertson Draw Burn Area in south central Montana, according to the National Weather Service.

Minor to moderate flooding is likely on Medicine Lodge Creek near Hayattville, Wyoming, on Monday, according to the NWS in Riverton. As of 5:50 a.m. Monday, water levels in the creek were at 5.1 feet. Flood stage at the creek is 4 feet, the NWS in Riverton said.

Tensleep Creek near Ten Sleep could also see some flooding. Water levels were at 4 feet as of 5:30 a.m. Monday, with flood stage for the site listed as 4.5 feet, according to the NWS in Riverton.

Minor flooding was already occurring early Monday along the Gardiner River in Park County with more flooding possible, according to the NWS in Riverton. Flooding is expected to impact the Mammoth, Osprey Falls, Indian Creek and Lava Creek Campgrounds in the area.

Minor flooding has also been occurring along the Gros Ventre River in northwest Wyoming. The town of Kelly and the Gros Ventre Campground could experience flooding, the NWS in Riverton said.

The Madison, lower Gibbon and lower Firehole Rivers in northwest Wyoming could also see some flooding on Monday, according to the NWS in Riverton. Flooding could impact Madison, Fairy Falls, Fountain Paint Pot, Firehole Canyon, Harlequin Lake, Gibbons Falls and Kepler Cascades.

Fremont County could see some minor flooding, including around Lander, with river gauges in excess of flood action stage at numerous locations as of 5:30 a.m. Monday, according to the NWS in Riverton. Minor flooding is expected in the Popo Agie and Little Wind River drainages.

In Carbon County, Montana, moderate rainfall over the Robertson Draw Burn Area is expected Monday and could lead to flooding impact, according to the NWS in Billings.

“Excessive rainfall could trigger flash flooding of low-lying areas, and debris flows in and near the Robertson Draw wildfire burn scar,” the NWS in Billings said.

The flooding in Wyoming comes after near-record high temperatures Sunday that have led to increased high-elevation snowmelt, according to the NWS in Riverton. Western and central Wyoming could see some showers and thunderstorms Monday, with the strongest storms expected in northern Wyoming.

Further forecast information is available from the NWS.


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