Via a FB group:
The story in question is here: https://www.cnn.com/2018/12/27/us/ny-fires-con-ed-power-plant/index.html.
If you're living in the Five Boroughs, or nearby counties like Nassau or Westchester, you're going to want as much advance warning when something evacuation-worthy happens.
To answer the question, what I would have done was listen to NYPD, FDNY, and Con-Ed on the scanner to see what happened, and then decide on a course of action.
The New York Metropolitan area has a lot of scanner enthusiasts, and the electronic order of battle has been mapped out pretty well down there.
In only one week, I'll be hosting my first class of the new year, a Basic Grid-Down/Down-Grid Communications, Communications Monitoring, and Signals Intelligence (SIGINT) Class in Watertown, CT. Those of you who live in the city can take the Waterbury Branch of the MTA Metro-North New Haven line up to Waterbury station, and get a ride from there. There is a train that leaves GCT on Sunday at 0702 and arrives at 0942, or you can come up the night before and get a hotel. If you're interested in setting up information collection and alternative communications systems, this is the novice-level class to take. Then you won't be wondering when you hear "an explosion" and see an odd glow in the sky.