Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii
A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >
Last Update: 500 AM EDT Sat Mar 21 2026
For More Weather Information:
3NM WNW Copper Harbor MI
Marine Zone Forecast
Early This Morning
Southeast wind less than 10 knots. Cloudy with a chance of snow showers. Waves calm to 1 foot.
Today
Southeast wind 10 to 20 knots. Snow showers through early afternoon. Rain showers likely by late morning, then a chance of rain showers and snow showers late. Waves building to 3 to 5 feet occasionally to 7 feet, then subsiding to 2 to 4 feet.
Tonight
East wind 10 to 15 knots backing northeast 15 to 25 knots by midnight. Gusts up to 33 knots. Cloudy. A slight chance of rain showers and snow showers through late evening. Freezing spray late. Waves building to 5 to 8 feet occasionally to 10 feet.
Sunday
Northeast wind 20 to 25 knots backing north 10 to 20 knots in the afternoon. Gusts up to 33 knots. Mostly cloudy. Freezing spray. Waves subsiding to 2 to 4 feet.
Sunday Night
North wind 5 to 15 knots backing northwest less than 10 knots after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves subsiding to 1 to 2 feet.
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