Active AlertsMattituck, NY

What: Dangerously cold wind chills as low as 21 below.
Where: In Connecticut, Northern Middlesex, Northern New London, Southern Middlesex, and Southern New London Counties. In New York, Northeast Suffolk and Southeast Suffolk Counties.
When: Until 1 PM EST this afternoon.
Impacts: The cold wind chills could cause frostbite on exposed skin in as little as 30 minutes.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.

What: For the Extreme Cold Warning, dangerously cold wind chills as low as 17 below. For the Cold Weather Advisory, very cold wind chills as low as 10 below expected.
Where: Northeast Suffolk and Southeast Suffolk Counties.
When: For the Extreme Cold Warning, until 1 PM EST this afternoon. For the Cold Weather Advisory, from 1 PM this afternoon to 10 AM EST Monday.
Impacts: The cold wind chills could result in hypothermia if precautions are not taken.

Dress in layers including a hat, face mask, and gloves if you must go outside. Keep pets indoors as much as possible. Make frequent checks on older family, friends, and neighbors. Ensure portable heaters are used correctly. Do not use generators or grills inside.