Bloomberg says hundreds of flights have been canceled and almost 300,000 customers lost power in New York, Pennsylvania and Ohio by 7 p.m. local time. Reports of hail, wind and downed power lines and trees are coming in to the Storm Prediction Center. Along with its live blog, Weather.com is aggregating pictures and tweets on the storm and its damage with Storify.
Update at 11:45 p.m. ET. Menacing Clouds And A Union Deal:
Storm clouds loom over Times Square as Manhattan braced for heavy weather Thursday in New York.
Gov. Andrew Cuomo intervened in a weeks-long labor dispute between Consolidated Edison and its employees, The Associated Press reports, in anticipation of the storm.
"You don't want a storm hitting New York City without Con Ed being at full force," Cuomo said, according to the AP.
The unionized workers now have a tentative agreement in place with the company.