Severe Thunderstorms Packing Damaging Winds, Large Hail Threaten the Northeast Wednesday Evening

Chris Dolce
Published: June 13, 2018

Severe thunderstorms packing damaging winds, hail and possibly an isolated tornado threat are expected to fire up in parts of the Northeast into Wednesday evening.

Strong to severe thunderstorms are moving through eastern New York and central Pennsylvania, associated with a robust cold front that is moving through the region.

Wednesday's Outlook

The main round of strong to severe storms will occur Wednesday evening as a more potent weather system arrives.

Forecast guidance is depicting that a band of thunderstorms will develop ahead of the cold front, from upstate New York and western Pennsylvania southwestward toward the upper Ohio Valley. Some individual severe thunderstorms could also fire up to the east of that band.

Severe thunderstorms are possible across a large swath of the Northeast into Wednesday evening, as the latest outlook below from NOAA's Storm Prediction Center illustrates.

Not everyone will see severe weather. The greatest odds for severe storms will be across the interior Northeast, particularly in upstate New York and Pennsylvania. A few strong to severe storms could also affect areas as far east as the Interstate 95 corridor from New York City to Washington D.C.

Damaging straight-line winds and large hail are the primary threats, though an isolated tornado or two cannot be ruled out.

(MORE: Your Severe Weather Outlook)

After this round of severe storms, the Northeast should finish the week with more docile weather conditions.

Outside of a few showers in northern New England on Thursday, the region should experience a dry end to the week.

Wednesday Setup

A cold front will slice its way through an increasingly moist atmosphere across the Northeast. In addition, a strong jet stream, the ribbon of strong winds above the Earth's surface, will accompany the storm system.

A cold front and strong jet stream winds will encounter a moist air mass over the Northeast, triggering the development of severe thunderstorms.

The combination of those ingredients will spark the development of showers and thunderstorms, some of which could produce severe weather.

(MORE: It's Prime Time For Damaging Winds in the U.S.)


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