Severe Weather and Flash Flooding Potential for the Center of the Nation

An upper level trough coinciding with surface frontal boundaries will focus showers and thunderstorms from the Great Lakes region into the Ohio and Tennessee Valley's, central and southern Plains. Instances of flash flooding, damaging winds and large hail are possible. Meanwhile, increasing waves and rip currents for portions of the eastern seaboard this week as tropical Atlantic is active. Read More >

Destructive Early Season Snowfall in Southern and Eastern PA

An early season winter storm brought generally 3-8 inches of snow to Southern and Eastern PA on October 29th, 2011. The storm was a classic Nor'Easter, deepening rapidly late Friday Night and Saturday (29th) as it moved up the East Coast - just off shore. The storm produced gusty winds on Saturday in Southeastern PA, knocking down trees and power lines, interrupting electric service to more than 400,000 homes and businesses across the state. Many trees still had leaves on them, and the heavy, wet snow (snow to liquid ratios were anywhere from 6:1 to 12:1) weighed down the trees and led to widespread damage.

Snowfall Accumulations for 29 October 2011 (inches)