An outbreak of severe weather is expected to impact millions tonight from the Ohio Valley to the Northeast.
These storms are affecting major cities like Philadelphia, D.C., Baltimore and New York City.
Storms fired quickly across northeastern Ohio and northwestern Pennsylvania. The storms are capable of spawning damaging wind gusts, large hail and tornadoes. For the latest storm reports, see below. The storms are flying eastward at 50 mph. Be alert for rapidly changing weather in the central Appalachians.
An area from Ohio through Pennsylvania and New York into southern New England is especially at risk for long-lasting storms that could generate destructive wind gusts in excess of 70 mph until well into tonight. There is concern that people may be caught off-guard by the storms overnight.
Tornadoes will also be possible in some storms, especially near a warm front extending from northern Pennsylvania and southern New York east to Massachusetts and Connecticut tonight.
Tornadoes that touch down after dark will pose even more risks to life, since the darkness can shroud visibility. It is crucial to keep weather radios turned on with the volume on high. Heed any severe storm or tornado-related warnings.
For continuous updates throughout the severe weather outbreak, follow our Twitter account, @breakingweather.
11:20 p.m.: WNBC-TV in New York City is reporting that debris from a church steeple struck by lightning in Cobble Hill, Brooklyn, seriously injured a pedestrian on the street below earlier tonight.
11:02 p.m.: First Energy Corp. is reporting that more than 94,000 customers are without power across their large service area spanning parts of Ohio, West Virginia, Maryland, Pennsylvania and New Jersey.
10:45 p.m.: All severe weather warnings have been discontinued from the Ohio Valley to the Northeast as the threat transitions from damaging winds and hail to flooding rain and lightning.
9:30 p.m.: The number of damage reports to NOAA's Storm Prediction Center totaled to 356 throughout the country.
8:30 p.m.: 1 person was injured in Camden, N.J., when a tree fell onto a car.
7:54 p.m.: After crashing into power lines, trees in Belington, W.Va., caught on fire.
7:09 p.m.: Williamstown, W.Va. received 1.25 inches of rain in 25 minutes.
7:06 p.m.: 3 people were injured in Rockaway, N.J., when a tree fell onto a house.
6:30 p.m.: Hail ranging from dime- to quarter-sized reported throughout Berwick and Columbia Counties, Pa., with large trees and wires down across Upper Dauphin County, Pa.
5:35 p.m.: "NYC and Philly should get the nasty storms after 7pm. High winds will once again be the impacts with gusts over 60 mph," Expert Senior Meteorologist Henry Margusity tweeted.
5:20 p.m.: About 24,000 without power in New York state.
5:00 p.m. EDT: Wind gusts continued at 55-60 mph for ten minutes as thunderstorms rolled through Broome County, NY. Reports of trees down on a home with people trapped inside.
4:50 p.m. EDT: 56,000 currently without power across Pennsylvania.
4:35 p.m. EDT: 23,000 customers without power across Ohio.
4:27 p.m. EDT: 2 to 2.25" hail recorded in Montgomery County, Ohio.
4:00 p.m. EDT: Emergency manager released an unconfirmed report of a tornado in Elmira, NY at 3:58 p.m. Numerous trees down, roofs off buildings, people trapped in cars.
3:35 p.m. EDT: Local law enforcement reported a tornado near Brookville, PA at 3:27 p.m. EDT moving southeast at 35 miles per hour. Other locations that could be affected include Summerville, Brookville and Reynoldsville, PA.
3:30 p.m. EDT: 2 inch hail reported in Montgomery County, Ohio.
3:15 p.m. EDT: "Looks like meso low in Ohio, watch out #Pittsburgh area it could up the risk for a #tornado in the next 1-2 hours," tweeted AccuWeather Expert Senior Meteorologist Alex Sosnowski.
3:00 p.m. EDT: Trees and power lines down in and around Columbiana County, Ohio. Additionally, numerous large branches down in Trumbull County and one inch hail recorded in Mahoning.
2:30 p.m. EDT: Widespread trees down throughout Venango County, PA.
1:35 p.m. EDT: A tornado warning was issued for parts of Mercer and Venango counties in Pennsylvania until 2:15 P.M.
1:25 p.m. EDT: A wind gust to 70 mph occurred in Jamestown, Pa.
1:21 p.m. EDT: A tornado warning was issued for parts of Ashtabula and Trumbull counties in Ohio and part of Crawford County in Pennsylvania until 1:45 p.m. EDT.
12:45 p.m. EDT: Severe storms are expected to first fire across Indiana and Ohio later this afternoon before shifting into Pennsylvania and New York. For now, some showers and thunderstorms are rumbling from Indiana to Michigan and New York. High heat and humidity will allow for storms to erupt violently during the evening. "Dew points between 72 and 75 are moving into Moderate risk area [from Ohio to Massachusetts]. Wow, that's like High octane Fuel for the storms," AccuWeather Expert Senior Meteorologist Henry Margusity said.
10:36 a.m. EDT: The threat for severe storms appears like it will increase drastically by 2:00 p.m. EDT. The threat for tornadoes across northeastern Pennsylvania and southern New York to Massachusetts will increase during the late afternoon into the night. The highest threat for twisters may be after 6:00 p.m. EDT.
6:42 a.m. EDT: A press release from New York Gov. Andrew Cuomo's office says the state's emergency operations center will be activated at 1:00 p.m. today in anticipation of severe storms.
5:38 a.m. EDT: According to Alliant Energy, more than 5,000 customers are without power this morning across their service area which includes southern Minnesota, Iowa and southern Wisconsin. More than 2,600 of those outages are in eastern Iowa alone.
4:06 a.m. EDT: Intense thunderstorms developing near Pittsburgh caught the eyes of some Twitter users. @Sainsha tweeted, "Insane lightning storm approaching Pittsburgh from the west. It looks like the endtimes rolling in."
1:53 a.m. CDT: Large highway signs were blown down by strong thunderstorm wind gusts at the intersection of Highway 60 and Highway 61 near Richfield, Wis.
1:39 a.m. CDT: A pop-up thunderstorm produced a downburst over O'Hare Airport in Chicago, Ill. A 70-mph wind gust was reported from the storm.
Content contributed by AccuWeather.com Meteorologist Meghan Evans.
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