Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Hazardous Weather Conditions

Current conditions at

Copper Harbor (KP59)

Lat: 47.47° N Lon: 87.88° W Elev: 623 ft.

34°F

1°C

Humidity	97%
Wind Speed	SE 6 mph
Barometer	29.64 in (1004.7 mb)
Dewpoint	33°F (1°C)
Visibility	NA
Wind Chill	29°F (-2°C)
Last update	28 Dec 2:51 pm EST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Detailed forecast for

Keweenaw County

Late This Afternoon

Breezy. Snow with possible rain and freezing rain likely. Areas of fog, freezing fog with patchy blowing snow. Snow accumulation up to 1 inch. North winds 20 to 30 mph inland, except northeast 10 to 20 mph near the shore. Chance of precipitation 90 percent.

Tonight

Snow. Blowing snow and heavy freezing spray. Snow may be heavy at times. Visibility one quarter mile or less at times. Snow accumulation of 6 to 10 inches. Total snow accumulation 2 to 12 inches. Very windy with lows 11 to 16. North winds 30 to 40 mph. Gusts up to 55 mph, increasing to 65 mph after midnight. Chance of snow 100 percent. Wind chill values as low as 15 below after midnight.

Monday

Very windy and much colder. Cloudy with a chance of snow. Blowing snow in the morning. Heavy freezing spray. Patchy blowing snow in the afternoon. A slight chance of freezing rain in the afternoon. Visibility one quarter mile or less at times. Highs around 11 inland to around 18 at the shore. North winds 25 to 35 mph, becoming northwest 20 to 30 mph in the afternoon. Gusts up to 60 mph. Chance of precipitation 50 percent.

Monday Night

Breezy. Mostly cloudy. Heavy freezing spray in the evening. Patchy blowing snow. Lows 6 to 11 above. Northwest winds 15 to 25 mph. Gusts up to 45 mph in the evening.

Tuesday

Warmer. A chance of snow showers in the morning, then snow showers in the afternoon. Cloudy. Highs 19 to 24. West winds 5 to 15 mph with gusts up to 30 mph. Chance of snow 90 percent.

Tuesday Night

Cloudy with snow showers likely. Heavy freezing spray after midnight. Lows 1 to 6 above. Northwest winds 10 to 20 mph with gusts up to 40 mph. Chance of snow 70 percent.

Wednesday

Colder. Heavy freezing spray in the morning. Cloudy with a 50 percent chance of snow showers. Highs 7 to 12 above.

Wednesday Night And New Years Day

Heavy freezing spray. Cloudy with a 40 percent chance of snow showers. Lows around 2 below inland to around 4 above at the shore. Highs around 7 above inland to around 13 at the shore.

Thursday Night

Heavy freezing spray in the evening. Cloudy with a 40 percent chance of snow showers. Lows around 2 above inland to around 8 above at the shore.

Friday And Friday Night

Cloudy with a 30 percent chance of snow showers. Highs around 10 above inland to around 16 at the shore. Lows around 4 above inland to around 10 above at the shore.

Saturday

Cloudy with a 30 percent chance of snow showers. Highs around 15 inland to around 21 at the shore.

Saturday Night And Sunday

Cloudy. Lows 2 to 7 above inland to around 10 above at the shore. Highs around 15 inland to around 21 at the shore.