Severe Thunderstorms Packing Damaging Winds Threaten the Northeast Wednesday

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Ohio Valley To The Northeast Faces Potential Severe Threat
  • A potent weather system will lead to the development of thunderstorms on Wednesday in the Northeast.
  • Some of those storms could turn severe with damaging winds being the primary threat.

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


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 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.)


Wednesday’s Outlook


Showers and some thunderstorms will likely be ongoing Wednesday morning in portions of the Northeast as an initial weather disturbance moves through.


The main round of strong to severe storms will occur in the afternoon and evening hours 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 on Wednesday, 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 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 are the primary threat, though some large hail is also expected. An isolated tornado or two cannot be ruled out.


(MORE: Your Severe Weather Outlook)


Wednesday’s Severe Thunderstorm Forecast

(Shaded on the map above is the likelihood of severe thunderstorms on Wednesday. Note that not all categories apply for the severe weather risk on a particular day.)


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.

2018-06-12 16:40:36

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