Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains
A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >
Hazardous Weather Conditions
Last Update: 1100 AM EDT Sun Apr 12 2026
For More Weather Information:
3NM WNW Copper Harbor MI
Marine Zone Forecast
Rest Of Today
South wind 15 to 25 knots. Cloudy with a chance of showers and thunderstorms. Waves 4 to 7 feet occasionally to 9 feet subsiding to 3 to 6 feet occasionally to 8 feet.
Tonight
Southwest wind 15 to 20 knots veering west 10 to 15 knots late. Mostly cloudy. A chance of showers and thunderstorms through late evening, then a chance of rain showers by midnight. Waves subsiding to 2 to 3 feet.
Monday
Northwest wind 5 to 15 knots veering northeast less than 10 knots in the afternoon. Mostly cloudy. Waves subsiding to 1 to 2 feet.
Monday Night
East wind 5 to 15 knots. Rain showers likely and a slight chance of thunderstorms in the evening, then rain showers likely after midnight. Waves building to 2 to 3 feet.
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