Active Pattern sparks Mid-Atlantic Flood & Severe Threat

An active pattern to impact the mid-Atlantic will bring a threat for flooding into the work week. A combination of tropical moisture and an approaching cold front will bring widespread showers, thunderstorms and a elevated risk for severe and flash flooding. A moderate excessive rainfall outlook is in effect which is a level 3 out of 4 flood threat. A marginal risk means numerous flash flooding events are expected and some could be significant. Rivers may also be impacted by the amount of moisture.

The atmosphere is saturated with dewpoints in the 70s. Rainfall rates of 1-2" per hour possible with strong storms, new rain totals up to 3", falling on top of saturated soil. Flood Watches stretch from Virginia through Maryland, Pennsylvania, West Virginia and Ohio.

The Storm Prediction Center (SPC) has placed much of this region under a Marginal Risk (Level 2 of 5) for severe storms. Damaging winds, hail and a spin up tornado are all primary concerns today. Another outlook area has been issued in anticipation of storms forecasted for Tuesday.

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