Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Hazardous Weather Conditions

Small Craft Advisory in effect from January 21, 03:00 PM EST until January 22, 01:00 PM EST

Last Update: 246 PM EST Wed Jan 21 2026

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For More Weather Information:

Philadelphia, PA Local Forecast Office

31NM SSE New York NY

Marine Zone Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY AFTERNOON...

This Afternoon

S winds around 15 kt with gusts up to 20 kt, increasing to 20 to 25 kt with gusts up to 30 kt late. Seas 3 to 5 ft. Wave detail: S 4 ft at 4 seconds and SE 2 ft at 9 seconds.

Tonight

SW winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 4 to 6 ft. Wave detail: S 5 ft at 6 seconds. A chance of flurries in the evening.

Thu

W winds 15 to 20 kt with gusts up to 30 kt. Seas 4 to 6 ft. Wave detail: S 5 ft at 7 seconds and SE 4 ft at 10 seconds.

Thu Night

W winds 10 to 15 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave detail: W 3 ft at 6 seconds and SE 1 foot at 10 seconds.

Fri

W winds 10 to 15 kt, increasing to 15 to 20 kt in the afternoon. Seas 2 to 4 ft. Wave detail: W 3 ft at 5 seconds and SE 1 foot at 10 seconds.

Fri Night

NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 4 ft. Wave detail: NW 4 ft at 4 seconds and SE 1 foot at 10 seconds. A chance of light freezing spray.

Sat

N winds 15 to 20 kt, diminishing to 10 to 15 kt in the afternoon. Seas 2 to 4 ft. A chance of light freezing spray in the morning.

Sat Night

N winds 10 to 15 kt. Seas 2 to 3 ft. A chance of snow in the evening, then snow after midnight. Vsby 1 to 3 nm.

Sun

NE winds 20 to 25 kt. Seas 3 to 5 ft. Snow. Vsby 1 to 3 nm.

Sun Night

NE winds 20 to 25 kt, diminishing to 15 to 20 kt after midnight. Seas 5 to 8 ft. Snow. Vsby 1 to 3 nm.