00:00A sudden cold snap could bring both thunderstorms and the season's first snowflakes to parts of the northeast.
00:06Colder air from Canada is sweeping across the Great Lakes and eastern United States.
00:11It follows unusually warm weather, with temperatures recently running 10 to 20 degrees above average in some areas.
00:18Now the pattern is reversing.
00:20By Saturday, temperatures could fall to 10 to 20 degrees below average.
00:24Friday's storms could produce wind gusts of 55 to 65 miles per hour in the strongest cells.
00:30With isolated severe weather possible in parts of the mid-Atlantic,
00:34a brief tornado cannot be ruled out in parts of Pennsylvania, New Jersey, and western Connecticut.
00:40Behind the front, gusty winds will make the air feel even colder.
00:44Over the Great Lakes, cold air crossing warmer water could trigger rain and wet snow showers.
00:50Some higher elevations in Pennsylvania, New York, and New England could briefly see slushy snow,
00:56but widespread accumulation is not expected.
01:00Saturday morning could bring wind chills in the 20s and 30s across the interior northeast.
01:05Frost or freezing temperatures may follow in some inland areas Saturday night.
01:09By early next week, temperatures are forecast to move closer to seasonal averages.
01:14Disclosure.
01:15This video contains stock footage and content created or enhanced using AI-assisted tools.
01:19This video contains stock footage and content.
01:19Disclosure.
01:19Disclosure.