CHEYENNE, Wyo. (AP) — A National Weather Service meteorologist in Riverton says the flooding in central and northern Wyoming this past week is unusual for this time of year.

Al Ross says in his 20 years he's never seen flooding this bad in the middle of February.

He says a combination of heavy snowfall over the last few months, a rapid warmup in the last week and frozen ground and rivers caused flooding in Fremont and Washakie counties. More than 100 homes were evacuated over the weekend in Worland because of high water.

Ross says the current flooding danger could persist for another two or three days in parts of Wyoming.

Meanwhile, Residents along the Bighorn River in northern Wyoming are battling major flooding with the help of National Guard troops and others.

The flooding began over the weekend when warm temperatures melted snow and ice jams caused water to back up.

More than 100 homes were evacuated in Worland.

Kelly Ruiz of the state Homeland Security Office says about 60 guard troops are deployed to the Worland area to help with sandbagging efforts. Another dozen personnel who normally fight forest fires in the summer are heading to neighboring Big Horn County.

Ruiz says she doesn't yet have any specifics on homes or businesses damaged.

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