Preliminary reports of a tornado in York County Saturday following Weather Service damage survey

Tree down in Wrightsville (Mike Parker)

The National Weather Service has determined damage across eastern parts of York County, in the Hallam and Wrightsville area, was caused by an EF-1 tornado.

The tornado Saturday afternoon lasted four miles and had a path of 100 yards at its widest. It had peak winds of 90 miles per hour.

The survey crew also visited northern Lancaster County, in the Brickerville area, where they determined straight-line winds of 75 mph caused extensive damage over a nine-mile stretch and half-mile wide path.

Tree damage, as well as other debris, was laid out in a pushed-forward fashion, rather than a swirling pattern, thereby explaining the straight-line winds versus tornadic winds.

More details are expected to be released from both areas of damage.

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