National Weather Service Marine Forecast FZUS63 KDTX

FZUS63 KDTX 131424
GLFSC

Lake St Clair Forecast
National Weather Service Detroit/Pontiac MI
924 AM EST Tue Jan 13 2026

Waves are the significant wave height - the average of the highest 1/3 of the wave spectrum. Occasional wave height is the average of the highest 1/10 of the wave spectrum.

SYNOPSIS
Low pressure, 29.10 inches, will move across northern Ontario today and into Quebec on Wednesday. This low will drive an arctic cold front across Lake Huron Wednesday morning. The post frontal arctic air will lead to near gale force winds, freezing spray and snow squalls. Lingering troughing will hold across the eastern Great Lakes through Thursday while high pressure, 30.10 inches expands across Lake Superior. Another low pressure system is forecast to track across the northern Great Lakes on Friday, bringing more gusty winds and snow showers.

LCZ460-132230
Lake St Clair
924 AM EST Tue Jan 13 2026

REST OF TODAY
Southwest winds 15 to 20 knots. Mostly cloudy. A chance of light showers in the afternoon. Waves 1 to 3 feet.

TONIGHT
Southwest winds 15 to 20 knots becoming west 10 to 15 knots after midnight. Partly cloudy this evening becoming mostly cloudy. A chance of light showers after midnight. A chance of light snow showers early in the morning. Waves 1 to 3 feet.

WEDNESDAY
West winds 10 to 15 knots becoming northwest 15 to 20 knots in the late morning and afternoon. Mostly cloudy. Light snow showers likely and a chance of light showers early in the morning...then light snow showers likely in the late morning and afternoon. Waves 1 to 3 feet.

WEDNESDAY NIGHT
Northwest winds 20 to 25 knots. Mostly cloudy early in the evening becoming partly cloudy. Light snow showers likely early in the evening...then a chance of light snow showers by midnight. Waves 2 to 4 feet.

THURSDAY
Northwest winds 15 to 20 knots diminishing to 10 to 15 knots in the afternoon...then backing to the southwest in the evening. Partly cloudy in the morning then clearing. Waves 1 to 3 feet.

FRIDAY
Southwest winds 20 to 25 knots. Mostly cloudy with light snow likely. Waves 1 to 3 feet.

SATURDAY
West winds 15 to 20 knots. Mostly cloudy with a chance of light snow. Waves 1 to 3 feet.

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Experimental modernized open lake forecast is available online at weather.gov/dtx/glftablesc

Graphical marine forecasts are available at weather.gov/greatlakes