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Severe weather threat from Midwest to Mid-Atlantic

OKLAHOMA CITY - School districts and authorities are bracing for the possibility of a severe weather outbreak that could bring powerful, long-track tornadoes and large hail Tuesday to the Great Plains.

The most dangerous weather - heavy winds, tornadoes and hail as large as baseballs or softballs- will likely take aim at a 70,000-square-mile area stretching from southern Oklahoma to southern Nebraska, including the Oklahoma City area, according to the Storm Prediction Center in Norman.

In all, nearly 37 million people from the Rio Grande River in south Texas to Omaha, Nebraska, and the western regions of Missouri, Arkansas and Iowa are at a slight risk or higher of experiencing severe weather Tuesday. In the East, a separate storm system could bring thunderstorms, strong winds and hail to Philadelphia, Baltimore and Washington, D.C., but the risk of severe outbreaks is low.

"We shouldn't assume that we're going to have a lot of information - you know, a lot of lead time," Storm Prediction Center meteorologist Matt Mosier said. "We may or we may not."

The weather is already causing havoc in some parts. In South Haven, Michigan, a plane was blown off the runway Monday evening, and lightning set a business on fire, reports MLive.com.

Administrators for Oklahoma City Public Schools, the state's largest school district, planned to meet early Tuesday morning to assess the weather and determine whether to cancel classes, spokesman Mark Myers said in an emailed statement.

The University of Oklahoma has sent messages on social media since last week reminding followers to be aware of conditions, and will announce any potential decisions regarding class cancelations as early as possible, spokeswoman Catherine Bishop said.

In much of Texas, residents facing the new threat are still recovering from the damage of several recent bouts of severe weather, reports CBS Dallas.

With hail - up to baseball-size in some areas - in the forecast today, Wylie, Texas, homeowners are worried severe weather is about to hit their area for a third time this spring.

There was such an abundance of damage to homes in the area two weeks ago that there's barely been time to make the necessary repairs and residents are concern their property won't be able to take the brunt of another round of storms.

Damage in Wylie ranges from cracked windows and broken skylights, to roofs completely destroyed. At this point, some homeowners are grappling with the question of whether to rush to make repairs or just wait to be hit again.

The Storm Prediction Center issued a notice last week that severe weather was possible Tuesday in this part of the country and released updated forecasts in the days since. In recent years, authorities have been able to predict storm conditions like these several days in advance with greater confidence, Mosier said, though he noted that the weather doesn't always pan out as expected.

"It's never straightforward when you're sitting here talking about (predicting) large tornadoes," Mosier said. "We're trying to be as confident or as accurate as we can."

Residents of impacted areas should develop a plan to take shelter from a quick-forming storm without driving in severe conditions, Mosier said.

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