JAMAICA, Queens (WABC) -- About 600 customers remained without power in New York City Sunday amid the sweltering heat wave.
Most of those were in Jamaica, Queens, where store owners on Parsons Boulevard said the power went out about 1 p.m. Saturday.
Con Edison crews were busy trying to restore power to the affected areas.
For those needing a place to escape the oppressive conditions, the Office of Emergency Management has opened cooling centers throughout the city.
"We want everyone to remember the basics here," said Mayor Bill de Blasio. "Drink lots of water, don't go in the sun. It's a real simple thing, stay out of the sun. If you've got to be outside, stay in the shade. This is the worst heat we've seen in a decade, it's really bad."
There were long lines at city pools Saturday as New Yorkers sought relief from the heat.
The pools have had extended hours this weekend and will be open until 8 p.m. Sunday.
With record- or near-record-high temperatures at night, when many air-conditioned places are closed, the weather can become especially dangerous for people who don't get a chance to cool down, experts say.
The risks are greater for young children, the elderly and the sick.
The heat wave is expected to last one more day before relief arrives on Monday.
Hundreds left without power in Queens amid heat wave
More TOP STORIES News