Up to 12 inches of snow has fallen across Long Island depending on the community.
The accumulating snow has ended, roadways and walkways will remain icy and slippery with some occasional light snow and flurries through this morning.
Some places have received spotty light freezing drizzle as well. Exercise caution if traveling or being outdoors as temperatures will remain well below freezing.
Both county executives, Bruce Blakeman in Nassau and Ed Romaine in Suffolk adeclared a state of emergency for their respective municipalities.
Nassau County Executive Bruce Blakeman said that the county warming center at 1200 Old Country Road in Westbury will be stocked with blankets, ready meals and other necessities.
The center will be open "until we determine the cold is gone," he added. It is open today and is monitored 24/7.
Gov. Kathy Hocul declared a state of emergency on Friday.
Precipitation could mix with sleet and freezing rain for a time Sunday night especially closer to the coast.
"Our trucks are fueled, our plows are on," Hempstead Town Supervisor John Ferretti said, adding that vehicles should be removed from residential side streets — if possible — for plows to "do their job."
Roads, and especially bridges and overpasses, will likely become slick and hazardous. Visibilities may drop below a quarter mile due to heavy snow. Temperatures are expected to remain in the lows with very cold wind chills around -5 degrees.
"Salting becomess less effective when we hit 20 degrees," said Joe Sparacio, commissioner of the county's Office of Emergency Management.
PSEG Long Island officials said the power utility is prepared to respond safely to potential power outages.
While powdery snow associated with extreme cold typically does not damage electrical equipment, the utility said hazardous driving conditions, icy roads and reduced visibility could lead to vehicle collisions with utility poles.
Crews and resources will be in place to respond as quickly and safely as possible. Michael Sullivan, vice president of electric operations, said the company continues to monitor the storm and has completed system and logistics checks to support timely restoration efforts.
The utility urged customers to prepare in advance, including knowing how to report outages and follow winter safety guidance. PSEG advises people to stay away from downed wires, which should always be considered live, avoid standing water or slush, and never use generators or gasoline-powered equipment indoors or near windows or vents.
Outages can be reported through the PSEG Long Island mobile app, by texting OUT to 773454, online at psegliny.com/outages, or by calling the 24-hour electric service number at 800-490-0075.
Updates are also available on social media and via the MyPower outage map at mypowermap.psegliny.com.