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Severe Storm Potential in the Northeast & Mid-Atlantic

23 Jul 2020, 7:10 am

A slow moving trough of low pressure that brought numerous severe thunderstorms to the Northeast and Mid-Atlantic on Wednesday, will continue to bring the threat on Thursday.

Showers and thunderstorms developed with peak daytime heating on Wednesday.  Some of the thunderstorms that reached severe limits had wind gusts over 58 miles per hour in the Mid-Atlantic region.

Ominous storm clouds loomed over communities from Virginia northward into New England.  In Charlottesville, Virginia, damaging wind gusts knocked down tree branches and power lines during the afternoon, prompting emergency officials to close roadways until the debris was cleaned up.

Some of the thunderstorms produced extremely heavy rainfall, leading to Flash Flood Warnings being issued in New York City well into the night.  Neighboring New Jersey dealt with localized flooding concerns as well.


On Thursday, another weak trough will follow the previous day’s energy across the Northeast and Mid-Atlantic, continuing the threat for severe thunderstorms, mainly in the afternoon when daytime heating leads to moderate instability.

Moderate wind shear is expected to linger over most of the region, which will promote the potential for damaging wind gusts from severe storms or segments of severe storms.


Daytime heating will remain the primary source of instability, leading to the greatest potential for strong and severe storms during the afternoon. Storms are more likely to reach severe potential in the lee of the Appalachians, from North Carolina north into New England. Although damaging wind gusts will likely remain the greatest cause for concern, isolated tornadoes and damaging hail cannot be ruled out.

Stay with WeatherNation for up-to-date severe weather coverage on air and online. Severe watches and warnings are always scrolling across the bottom of our livestreams and broadcasts. This story will be updated as new information becomes available.

About the author

Rob grew up in South Florida, where daily afternoon storms and hurricanes piqued his interest in meteorology early on. That interest was fostered by his teachers and his father, who one time brought him onto the roof of their home to watch a funnel cloud move through the Everglades several miles away. ... Load MoreYears of filmmaking and tv production in high school gradually pushed him toward broadcast meteorology at Florida State University, where he joined and eventually led the student run daily weather show. After graduating with a Bachelors of Science in Meteorology, he began his career at KESQ in Palm Springs, California before heading to KFSN in Fresno and WLOS in Asheville, North Carolina. He has covered a diverse array of extreme weather events, including haboobs and flash flooding in the desert, extreme snow in the Sierra, hurricanes, and Appalachian ice storms. He also enjoys telling stories and reporting about weather issues. Connect with Rob on Twitter