Nonnewaug High School in Woodbury is dismissing at 1 p.m. on Friday after a nearby transformer blew, knocking out power.
There are more than 500 power outages in Woodbury, according to the Web site for Eversource, which is 11 percent of the customer base.
Eversource is reporting 1,142 power outages as of 1 p.m.
