Severe Storms Will End the Heat: DC, NYC, Philly

By Anthony Sagliani, Meteorologist
July 17, 2012; 9:20 PM ET
Share |
Photo courtesy of Flickr user, bunnygoth.

Oppressive heat and humidity blanketing the Northeast early this week will end after midweek. A cold front will cut into the heart of the heat on Wednesday, but relief will come at a stormy price.

As searing heat and humidity mix into a perfect thunderstorm cocktail, thunderstorms will erupt along the megalopolis from Boston to New York City, Philadelphia and Washington D.C., on Wednesday.

The storms will fire first near Erie, Pa., Albany, N.Y., and Portland, Maine, then explode southward reaching the major cities by the late afternoon or evening hours.

Damaging blasts of wind, blinding downpours and hail bigger than the size of quarters are possible with the most potent storms.

Anyone with outdoor activities planned for Wednesday should have a watchful eye to the sky if thunderstorms approach. Heed all severe weather watches and warnings and be prepared to take swift action.

This frightful Wednesday weather will mark the return to a more comfortable air mass for the end of the week, as high temperatures fall into the 80s and humidity values tumble Thursday and Friday.

Be sure to keep checking back with AccuWeather.com for the latest severe weather information and updates.

Comments

Comments left here should adhere to the AccuWeather.com Community Guidelines. Profanity, personal attacks, and spam will not be tolerated.

More Weather News

  • Pittsburgh: Cooler Weather to Return

    September 20, 2014; 5:12 AM ET

    A brief warmup is in store for the Pittsburgh area this weekend before cooler weather makes a return for the start of the new week.

  • Cleveland: Cooler Weather to Return

    September 20, 2014; 5:09 AM ET

    A brief warmup is in store for the Cleveland area this weekend before cooler weather makes a return for the start of the new week.

Daily U.S. Extremes

past 24 hours

  Extreme Location
High N/A
Low N/A
Precip N/A

WeatherWhys®

This Day In Weather History

Oklahoma (1965)
A total of 9 inches of rain in 6 hours causes flooding on Sugar Creek.

Central U.S. (1991)
Very early cold snap..... Location Temp Record Peoria, Ill. 32 33/1918 Burlington, Iowa 32 35/1918 Chicago, Ill. 36 38/1956 Indianapolis, Ind. 36 37/1956 Waterloo, Iowa 27 31/1971

Denver, CO ()
4-9" of heavy wet snow fell, downing tree limbs and causing power outages.