York and surrounding counties are under an extreme cold watch this weekend, with wind chills potentially dropping to 20 below zero. Learn how to stay safe and find warming stations.

The primary threat from the strong winds will be dangerously cold wind chills below zero on Saturday night, and only the single digits Sunday. The winds will also cause gale and storm conditions on the waters around Delmarva. High surf and beach erosion are also likely. Breaking waves could reach 7 to 11 feet.

TONIGHT: Becoming mostly clear; blustery and bitter cold with below zero wind chills by morning. Low: 8 TUESDAY: Partly to mostly sunny, breezy, and bitter cold; below zero wind chills in the morning. High: 19 TUESDAY NIGHT: Mostly clear and bitter cold ...

Once this front boundary moves through the region by Friday afternoon, we will clear the clouds out overnight Friday night and early on Saturday morning, and that will usher in another Arctic blast with another round of dangerously cold wind chills overnight Friday night through the first part of the day on Saturday.

On Monday at 1:16 a.m. a cold weather advisory was issued by the National Weather Service valid from 7 p.m. until Wednesday 10 a.m. for Carbon and Monroe counties.

The frigid wind chills expected in the Lower Hudson Valley this weekend could cause frostbite on exposed skin in as little as 30 minutes.

The National Weather Service has issued an extreme cold warning for South-Central Pennsylvania from 4 a.m. Saturday until 10 a.m. Sunday.

Snow in the Poconos won't be melting any time soon, as more bitterly cold temperatures and dangerous wind chills are expected.

On Friday at 2:23 a.m. a cold weather advisory was issued by the NWS Wakefield VA valid for Saturday between 6 a.m. and 10 p.m. The advisory is for Western Currituck and Eastern Currituck as well as Northampton,