Active Weather Pattern Expected From the Midwest to the Southern Plains; Dangerous Heat Likely in Southern Texas

A strong storm system will bring numerous to widespread severe thunderstorms across portions of the Midwest and Upper Great Lakes Tuesday. Tornadoes (a few strong), damaging winds and large hail are expected. Record high temperatures will be possible over southern Texas the next several days. This may lead to dangerous heat concerns especially for areas already without power. Read More >

Hazardous Weather Conditions

Last Update: 942 PM EDT Tue May 21 2024

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Marquette, MI Local Forecast Office

24NM NNW Copper Harbor MI

Marine Zone Forecast

Rest Of Tonight

East winds 20 to 30 knots increasing to gales to 35 knots after midnight, then veering southeast late. Patchy fog. Showers by late evening. Scattered thunderstorms. Scattered showers after midnight. Waves 3 to 5 feet occasionally to 7 feet building to 8 to 11 feet occasionally to 14 feet, then subsiding to 7 to 10 feet occasionally to 13 feet.

Wednesday

South gales to 40 knots becoming southwest gales to 45 knots in the afternoon. Patchy fog through early afternoon. A slight chance of thunderstorms through early afternoon. A chance of showers. Waves subsiding to 7 to 10 feet occasionally to 13 feet, then building to 11 to 15 feet occasionally to 19 feet.

Wednesday Night

Southwest gales to 35 knots becoming west 20 to 30 knots after midnight. A chance of rain showers through midnight. Waves subsiding to 5 to 8 feet occasionally to 10 feet.

Thursday

West winds 15 to 25 knots becoming southwest 10 to 20 knots by mid afternoon. Waves subsiding to 2 to 4 feet.

Thursday Night

West winds 5 to 15 knots veering north after midnight. Waves subsiding to calm to 2 feet.

Friday

Northeast winds 10 to 20 knots veering east by mid afternoon. A chance of rain showers. Waves building to 1 to 3 feet.

Friday Night

East winds 10 to 20 knots becoming south 15 to 25 knots after midnight. Showers likely and a chance of thunderstorms. Waves building to 3 to 5 feet occasionally to 7 feet.

Saturday

Southwest winds 15 to 25 knots becoming west 5 to 15 knots. A chance of showers. Waves building to 3 to 6 feet occasionally to 8 feet, then subsiding to calm to 2 feet.

Sunday

Northwest winds 5 to 15 knots veering north. Waves calm to 2 feet.