Slideshow
Dark clouds descended on New York City July 26, 2012.
DNAinfo/Paul Lomax
People rushed through the heavy rain near Grand Central Terminal July 26, 2012.
DNAinfo/Ben Fractenberg
The Chrysler Building's spire stood out against the clouds as a thunderstorm approached July 26, 2012.
DNAinfo/Ben Fractenberg
Dark clouds rolled in over the New York City skyline July 26, 2012.
Twitter/isardasorensen
A thunderstorm pounded New York City July 26, 2012.
Twitter/JonathanWald
Lightning lit up the Brooklyn sky July 26, 2012.
Twitter/Fellmanator
A line of severe thunderstorms hit New York City July 26, 2012.
Twitter/UptownCollectiv
Pedestrians stopped to take pictures of the dramatic sky outside Grand Central Terminal as a thunderstorm approached July 26, 2012.
DNAinfo/Ben Fractenberg
The crowd at Grand Central Terminal during the thunderstorm July 26, 2012.
DNAinfo/Ben Fractenberg
Storm clouds rolled in over the Empire State Building July 26, 2012.
Twitter/JeremyCabalona
Forecasters predicted a severe thunderstorm in New York City July 26, 2012.
Twitter/Harlanvaughn
Storm clouds above a New York street July 26, 2012.
Twitter/CayteGrieve
Dark clouds rolled into New York City July 26, 2012.
DNAinfo/Paul Lomax
A large thunderstorm rolled into New York City July 26, 2012.
DNAinfo/Paul Lomax
Dark clouds descended on New York City July 26, 2012.
Photo Credit: DNAinfo/Paul Lomax
NEW YORK — The sky darkened and thunder rumbled Thursday evening as a severe thunderstorm blew through New York City.
Wind gusts of up to 54 miles per hour were measured at JFK Airport and on Staten Island, said Joey Picca, a meteorologist with the National Weather Service.
As of 9:30 p.m., more than 1,200 Con Edison customers were without power, about half in The Bronx, the utility said. The storm also delayed flights at more than half a dozen airports along the East Coast, including JFK, LaGuardia and Newark airports, according to the Federal Aviation Administration.
In Cobble Hill, a man walking down Clinton Street was seriously hurt Thursday evening after lightning struck a church steeple and caused scaffolding around the church to partially collapse onto the sidewalk, officials said.
As storm clouds descended on the city just before 8 p.m., some people outside Grand Central Terminal stopped to take photos of the roiling dark gray sky, but most hurried to shelter as drops of rain began to spatter the street. A downpour soon drenched those who hadn't made it inside in time.
Anthony Santateresa, 27, was on his way to Grand Central to catch a train home to Dutchess County when he and his younger brothers got caught in the storm.
"We just hit it at the right time," a dripping Santateresa said. "We'll wring out our shirts later."
Meteorologists had warned that the city could see tornadoes and quarter-sized hail, along with wind gusts of up to 70 miles per hour, but it appeared that the fast-moving storm was not as severe as it could have been, Picca said.
Still, for those who were caught outdoors, the rain alone was more than enough to handle.
"That wasn't a thunderstorm, it was Niagara Falls in NYC," tweeted @KennCampbell. "I'm drenched and fortunately my macbook made it through OK."
Forecasters expected the rain to taper off by about 11 p.m. Thursday.
Several extreme weather conditions — including high winds and humid air — combined to create Thursday's storm, which meteorologists predicted would wreak havoc from Ohio to New England.
Slideshow
People walk through the rain during an intense afternoon thunderstorm on June 22, 2012 in New York City. The storm brought relief to two days of oppressively hot weather in New York and much of the East Coast where high heat warnings and air quality alerts had been issued from Quebec to Virginia.
Getty Images/Spencer Platt
"That would be @shaunblakeney cowering away from the sudden hale [sic] storm in NYC" tweeted James Duvall (@jamesduvall)
Twitter/@jamesduvall
A man runs through the rain during an intense afternoon thunderstorm on June 22, 2012 in New York City.
Getty Images/Spencer Platt
Electrify Magazine (@electrifymag) posted this picture with the question, "New Yorkers did you get stuck in the storm today?"
Twitter/@electrifymag
Twitter user Henry Sene Yee (@hsyee) took this picture of some storm casualties in Flatiron.
Twitter/@hsyee
Yoko Ono (@yokoonoofficial) snapped this picture and wrote, "From My Window - 2012. Isn't this just beautiful? I love new york in thunder and storm! yoko."
Twitter/@yokoonoofficial
"Big thunder storm in Mid Town, NY. From @RivadaNetworks office, snapped City Bank getting struck." -- Twitter user Declan Ganley (@declanganley)
Twitter/@declanganley
A man walks through the rain during an intense afternoon thunderstorm on June 22, 2012 in New York City.
Getty Images/Spencer Platt
A woman walks through the rain during an intense afternoon thunderstorm on June 22, 2012 in New York City.
Getty Images/Spencer Platt
Twitter use NYC is my Muse (@NYCismyMuse) posted this photo with the comment, " Monster Storm! Huge Lightning Flash on midtown NYC skyline behind NY Times. Also pictured, Empire State Building, Bank of America Tower, 1 Penn Plaza during a huge late afternoon hail storm that hit NYC."
Twitter/@NYCismyMuse
"Today seems like a good day to work late... And stay indoors... " -- Twitter user Nadja Popovich (@PopovichN)
Twitter/@PopovichN
"My neighbor's yard after impromptu nyc hail storm on 100 degree day. golf ball sized. ‪#globalwarming" -- Twitter user @LoBosworth
Twitter/@LoBosworth
Pix11 reporter Arthur Chi'en posted this picture and wrote, 'Storm rolling thru our area takes out massive tree.'"
Twitter/@Arthur_Chien
"Zzzzzzzzt! Looks like violent lightning storm nails NYC west side construction project. You may not be able to tell, but it looks like the entire frame outline of the building is glowing, as is the tip of the crane!" -- @NYCismyMuse
Twitter/@NYCismyMuse
"Sky cracking open at coney island- electric storm had everyone running for cover. Beautiful." -- @vivaruiz
Twitter/@vivaruiz
"Helluva storm. This is the Bloomberg building getting it (no Mayors were injured in the making of this photo)." -- @KeithOlbermann
Twitter/@KeithOlbermann
Lightning strikes the Empire State Building during a fast moving, violent storm on July 18, 2012.
Twitter.com/gyro
A man walked through torrential rains in midtown on July 18, 2012 as the Office of Emergency Management issued a flash flood warning for New York City through rush hour.
DNAinfo/Nikhita Venugopal
Former-NFL player Dhani Jones posted a striking photo of the weather above New York City as the storm struck on July 18, 2012.
Instagram/d0057
Twitter user Adam Hirsch (@adamhirsch) tweeted, "Crazy lightning and hail storm in NYC . I've never seen anything like this."
Twitter/@adamhirsch
Twitter user Andrew Kaczynski (@BuzzFeedAndrew) tweeted this picture around 5pm on July 18 with the comment, "Wow. Hail everywhere."
Twitter/@BuzzFeedAndrew
Actress Debra Messing tweeted this picture, with the comment, "Yes people. that's HAIL. 98 degrees , and sirens, and crashing thunder, and black skies ‪#endoftheworld‬?"
Twitter/@DebraMessing
The makeup brand MAC tweeted this picture outside one of their stores, with the comment, "Hail?? Hail!"
Twitter/@MACcosmetics
In a photo that's now gone viral, former linebacker Dhani Jones tweeted this picture from 10,000 feet above LaGuardia Airport, saying, "Hey @nytimes check out what's coming toward #nyc from #queens. I'm flying on @delta. Photo taken at 10,000 feet."
Twitter/@DhaniJones
Photographer Sylvie Rosokoff posted this photo in her personal album, "The 2012 look (second half)," yesterday during the storm.
Sylviethecamera.smugmug.com/Sylvie Rosokoff
Photographer Inga Sarda-Sorensen (@isardasorensen) tweeted this picture with the caption, "Today's summer storm as it starts to rip through ‪#NYC".
Twitter/@isardasorensen
People walk through the rain during an intense afternoon thunderstorm on June 22, 2012 in New York City. The storm brought relief to two days of oppressively hot weather in New York and much of the East Coast where high heat warnings and air quality alerts had been issued from Quebec to Virginia.
Photo Credit: Getty Images/Spencer Platt
"We're expecting an elevated risk [of damage] versus a typical summer pop-up thunderstorm you'd see on a hot and humid day," Picca said earlier in the day. "If you don't need to go out, don't go out."
Gov. Andrew Cuomo warned New Yorkers to be prepared for the bad weather and said the State Emergency Operations Center would be activated at 1 p.m.
“I urge all New Yorkers to take caution and pay attention to local radio and television reports for the latest information on the progress of these summer storms," the governor said in a statement on his website.
"Proper precautions undertaken now can help ensure that the strong winds and heavy rain cause as little damage as possible and that families and individuals are kept safe from harm."
As the storm bore down on New York Thursday, Cuomo brokered a deal between Con Edison and locked-out union workers to get the 8,000 workers back on the job before the thunder and rain began, after a nearly month-long dispute.
Cuomo also provided advice for New Yorkers on his website in preparation for the storm.
With reporting by Ben Fractenberg