Heavy rain drenches parts of Nebraska and Iowa (Reuters)

OMAHA, Neb (Reuters) – Heavy rain and severe thunderstorms overnight drenched parts of eastern Nebraska and western Iowa, causing neighborhood flooding on Monday.

Torrential rainfall pummeled areas around Omaha, with two to four-and-a-half inches of water creating additional flooding in communities near the already swollen Missouri River.

In Council Bluffs, Iowa, several residents had to be rescued by National Guard personnel using high-water vehicles. Several structures in the area collapsed during flash flooding, and the National Guard rescued children and a driver from a stranded school bus, officials said.

Local flooding was receding, but more showers and thunderstorms could move through later in the day, said National Weather Service meteorologist Barbara Mayes.

Across the country in Pennsylvania, communities near State College and Harrisburg were cleaning up from two severe storms that swept through the region on Sunday, knocking down trees, causing power outages and ripping the facade off some downtown buildings, according to the Weather Service.

Heavy rain, hail and wind battered Delaware, eastern Pennsylvania and parts of New Jersey on Sunday, said Weather Service meteorologist Valerie Meola.

The Philadelphia metropolitan area was drying out from a soggy night. While some parts of the city barely felt a drop, just a few miles away areas were hit with more than two inches of rain in a 24-hour period, she said.

This month will rank as the wettest August on record in the city with 13 inches of rainfall so far, Weather Service forecasters said.

In Whitehall Township, an Allentown suburb, wind and rain brought down tree limbs and power lines. Beth Hanna, a bakery manager, said she saw downed branches everywhere on her way to work.

"I'm talking big limbs here, like almost the size of a tree," she said.

Wind damage from the weekend storm caused minor damage to the commissary roof at Dover Air Force Base in Delaware, spokesman Brett Kangas said.

In Monmouth County, New Jersey, some roads near the Manasquan River remained closed on Monday due to flooding, county spokeswoman Laura Kirkpatrick said.

In parts of Oklahoma, Texas, Arkansas and Louisiana this week temperatures will hover again in the low 100s with heat indexes climbing higher.

Parts of all four states are under heat advisories, according to the Weather Service.

Weather experts are keeping a close eye on Hurricane Irene, expected to strike the southeastern part of the country later this week.

Irene strengthened into the season's first hurricane while it slammed Puerto Rico on Monday, according to AccuWeather.com.

(Writing by Lauren Keiper; Additional reporting by David Hendee in Omaha, Kay Henderson in Iowa and Dave Warner in Philadelphia; Editing by Ellen Wulfhorst and Jerry Norton)

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Nebraska residents shrug off flood risk to nuclear plant (Reuters)

BROWNVILLE, Neb (Reuters) – Residents near a nuclear plant on the rain-swollen Missouri River were largely unconcerned about any potential safety risks from flooding ahead of a nuclear regulator's visit on Sunday.

Gregory Jaczko, the chair of the federal Nuclear Regulatory Commission will monitor flood preparations during a visit to the Cooper Nuclear Station near Brownville.

The plant is located about 80 miles south of Omaha, where snow melt and heavy rains have forced the waters of the Missouri River over its banks, although they have not flooded the plant and receded slightly on Sunday.

"I just don't think the water is going to get that high," said Brownville resident Kenny Lippold, a retired carpenter who has been following each step of the flood preparations in this riverside village of 148 residents.

"They claim that they are going to keep operating," Lippold said, adding that he will not flee his home of 29 years even though it is less than a mile from the Cooper reactor.

Jaczko will be briefed on Sunday by NRC resident inspectors -- the agency staff who work on-site every day -- plant officials and executives, said Mark Becker, a spokesman at the Nebraska Public Power District, the agency that runs the plant.

Water levels there are down after upstream levees failed, Becker said, relieving worries that water will rise around the Brownville plant as it has at another nuclear plant north of Omaha in Fort Calhoun.

Local shop owner Katy Morgan, 28, said her fears have been assuaged by information she has received via plant officials, who give out emergency radio equipment to residents within a 10-mile radius of the Cooper plant.

"I know everybody freaks out when they talk about nuclear," said Morton, who runs a boutique on Brownville's main thoroughfare. "I suppose if there was a drastic increase in the river I would be concerned. If they say 'evacuate' then I would be concerned," Morton said.

Jaczko will also visit on Monday the Fort Calhoun plant in the town of Fort Calhoun, Nebraska, about 20 miles north of Omaha, an agency official said.

Flood water up to 2-feet deep is standing on the site of the 478-megawatt Fort Calhoun plant, which will stay shut down until the water recedes, the NRC said.

On Sunday afternoon, workers accidentally deflated an auxiliary berm at the plant, said Omaha Public Power District spokesman Jeff Hanson.

Hanson said the "aqua dam" was a supplemental measure that provided workers "more freedom" but was not essential to keeping the plant dry.

"The plant itself is still protected," Hanson said. Floodwater would need to rise over 7 feet to flow over the berms and enter the plant, Hanson said, adding that the supplemental dam was not in original flood prevention plans.

An NRC inspection at Fort Calhoun two years ago indicated deficiencies in the flood preparation area, which have now been remedied, the agency said.

(Writing by Eric Johnson; Editing by Tim Gaynor)

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