Summary

Showers and thunderstorms formed in a moist airmass over Central PA during the late morning and early afternoon on May 10th. These storms had little wind shear to make them move or to create wind damage through mixing, but the temperatures aloft were conducive to make hail.

Preliminary Damage Reports in Text format

00z sounding from Sterling, VA

Radar Images

Reflectivity plan view from 2101z

Storm Relative Motion from 2101z

Note in the Reflectivity Cross section below the amount of high returns in the mid level of the storm. The freezing level was around 12kft this day.

Reflectivity Cross Section through hail storm Northwest of Shippensburg, PA