FZUS53 KDTX 242109
NSHDTX
Experimental Tabular Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
409 PM EST Wed Dec 24 2025
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...High pressure, 30.30 inches, will continue to push off
towards the east as a secondary high pressure, 30.50 inches, shifts
over the James Bay region on Thursday. Weaker winds will continue
through Thursday morning before northerly winds increase as a low
pressure system slides east on Friday with wintry precipitation.
LHZ422-250300-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
409 PM EST Wed Dec 24 2025
.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........South 5 to 10 knots.
100-ft winds........South 10 to 15 knots.
Sig waves...........2 feet or less.
Prob SmCrft/Gst.....20%/43%.
.THURSDAY...
Weather.............Partly sunny.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....21%/52%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 15 to 20 knots.
100-ft winds........East 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....21%/52%.
.FRIDAY...
Weather.............Snow, light sleet and freezing rain, then light
freezing rain and light sleet likely in the
afternoon.
Sfc winds...........Southeast 20 to 25 knots becoming east 10 to 15
knots in the afternoon.
100-ft winds........Southeast to 30 knots becoming east 15 to 20
knots in the afternoon.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....20%/55%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 5 to 10 knots becoming northeast after
midnight.
100-ft winds........East 10 to 15 knots becoming northeast after
midnight.
Sig waves...........2 feet or less.
Prob SmCrft/Gst.....29%/55%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of light freezing rain in the evening.
Southeast winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Breezy. Chance of rain and light freezing rain in the
morning. rain likely in the afternoon and evening. snow likely.
South winds 20 to 25 knots. Waves 12 to 16 feet.
.MONDAY...Very windy. Chance of snow. Northwest gales to
40 knots. Waves 12 to 16 feet.
$$
LHZ421-250300-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
409 PM EST Wed Dec 24 2025
.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........South 5 to 10 knots.
100-ft winds........South 10 to 15 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....30%/46%.
.THURSDAY...
Weather.............Partly sunny.
Sfc winds...........North 20 to 25 knots.
100-ft winds........North to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....31%/61%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 20 to 25 knots.
100-ft winds........East to 30 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....33%/58%.
.FRIDAY...
Weather.............Snow and light sleet, then snow, light freezing
rain and light sleet in the afternoon.
Sfc winds...........Southeast 20 to 25 knots.
100-ft winds........Southeast to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
Prob SmCrft/Gst.....33%/58%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northeast 10 to 15 knots.
100-ft winds........Northeast 15 to 20 knots.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet after
midnight.
Ocnl waves..........Around 6 feet in the evening.
Prob SmCrft/Gst.....37%/58%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of light freezing rain in the evening.
Southeast winds 10 to 15 knots. Waves 3 to 5 feet.
.SUNDAY...Breezy. Chance of rain and light freezing rain in the
morning. rain likely in the afternoon and evening. snow likely.
South winds 20 to 25 knots. Waves 14 to 18 feet.
.MONDAY...Very windy. Chance of snow. Northwest gales to
40 knots. Waves 14 to 18 feet.
$$
LHZ441-250300-
Port Austin to Harbor Beach MI-
409 PM EST Wed Dec 24 2025
.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....34%/67%.
.THURSDAY...
Weather.............Mostly cloudy.
Sfc winds...........North 20 to 25 knots.
100-ft winds........North to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....37%/70%.
Prob Gale/Gst.......3%/16%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northeast 15 to 20 knots becoming east after
midnight.
100-ft winds........Northeast 20 to 25 knots becoming east after
midnight.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....36%/70%.
Prob Gale/Gst.......5%/16%.
.FRIDAY...
Weather.............Snow.
Sfc winds...........Southeast 20 to 25 knots.
100-ft winds........Southeast to 30 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 11 feet.
Prob SmCrft/Gst.....35%/73%.
Prob Gale/Gst.......6%/17%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........5 to 7 feet subsiding to 2 to 4 feet after
midnight.
Ocnl waves..........Around 8 feet subsiding to around 5 feet after
midnight.
Prob SmCrft/Gst.....40%/73%.
Prob Gale/Gst.......8%/17%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of light freezing rain in the evening.
Southeast winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Breezy. Chance of rain and light freezing rain in the
morning. rain likely in the afternoon and evening. snow likely.
South winds 20 to 25 knots. Waves 8 to 12 feet.
.MONDAY...Very windy. Chance of snow. Northwest gales to
40 knots. Waves 8 to 12 feet.
$$
LHZ442-250300-
Harbor Beach to Port Sanilac MI-
409 PM EST Wed Dec 24 2025
.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....31%/63%.
.THURSDAY...
Weather.............Partly sunny.
Sfc winds...........Northwest 15 to 20 knots becoming north in the
afternoon.
100-ft winds........Northwest 20 to 25 knots becoming north in the
afternoon.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....34%/72%.
Prob Gale/Gst.......1%/16%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northeast 15 to 20 knots becoming east 20 to 25
knots after midnight.
100-ft winds........Northeast 20 to 25 knots becoming east to 30
knots after midnight.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....33%/69%.
Prob Gale/Gst.......2%/16%.
.FRIDAY...
Weather.............Snow, then snow, light freezing rain and light
sleet in the afternoon.
Sfc winds...........Southeast to 30 knots.
100-ft winds........Southeast gales to 35 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 11 feet.
Prob SmCrft/Gst.....30%/69%.
Prob Gale/Gst.......2%/17%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........5 to 7 feet subsiding to 2 to 4 feet after
midnight.
Ocnl waves..........Around 8 feet subsiding to around 5 feet after
midnight.
Prob SmCrft/Gst.....38%/69%.
Prob Gale/Gst.......2%/17%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of light freezing rain in the evening.
Southeast winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Breezy. Chance of rain and light freezing rain in the
morning. rain likely in the afternoon and evening. snow likely.
South winds 20 to 25 knots. Waves 8 to 12 feet.
.MONDAY...Very windy. Chance of snow. Northwest gales to
40 knots. Waves 8 to 12 feet.
$$
LHZ443-250300-
Port Sanilac to Port Huron MI-
409 PM EST Wed Dec 24 2025
.Tonight...
Weather.............Mostly cloudy.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....27%/45%.
.THURSDAY...
Weather.............Mostly cloudy.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 7 feet.
Prob SmCrft/Gst.....27%/60%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northeast 15 to 20 knots becoming east 20 to 25
knots after midnight.
100-ft winds........Northeast 20 to 25 knots becoming east to 30
knots after midnight.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....27%/60%.
.FRIDAY...
Weather.............Snow, light sleet and freezing rain, then light
freezing rain and light sleet in the afternoon.
Sfc winds...........Southeast 20 to 25 knots.
100-ft winds........Southeast to 30 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 10 feet.
Prob SmCrft/Gst.....27%/64%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........4 to 6 feet subsiding to 2 to 4 feet after
midnight.
Ocnl waves..........Around 7 feet in the evening.
Prob SmCrft/Gst.....33%/64%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of light freezing rain in the evening.
Southeast winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Breezy. Chance of rain and light freezing rain in the
morning. rain likely in the afternoon and evening. snow likely.
South winds 20 to 25 knots. Waves 8 to 12 feet.
.MONDAY...Very windy. Chance of snow. Northwest gales to
40 knots. Waves 8 to 12 feet.
$$
LEZ444-250300-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
409 PM EST Wed Dec 24 2025
.Tonight...
Weather.............Cloudy with a slight chance of drizzle and
light freezing drizzle, then mostly cloudy with
chance of drizzle, rain, light freezing rain
and light freezing drizzle after midnight.
Sfc winds...........Southeast 5 to 10 knots in the evening becoming
light and variable.
100-ft winds........Southeast 10 to 15 knots in the evening
becoming light and variable.
Sig waves...........2 feet or less.
Prob SmCrft/Gst.....15%/28%.
.THURSDAY...
Weather.............Partly sunny with a slight chance of rain and
light freezing drizzle, then mostly cloudy in
the afternoon.
Sfc winds...........Northwest 5 to 10 knots becoming north 10 to 15
knots in the afternoon.
100-ft winds........Northwest 10 to 15 knots becoming north 15 to
20 knots in the afternoon.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....15%/51%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northeast 10 to 15 knots becoming east 15 to 20
knots after midnight.
100-ft winds........Northeast 15 to 20 knots becoming east 20 to 25
knots after midnight.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....15%/51%.
.FRIDAY...
Weather.............Freezing rain and rain, then rain likely in the
afternoon.
Sfc winds...........East 15 to 20 knots.
100-ft winds........East 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....14%/52%.
.FRIDAY NIGHT...
Weather.............Cloudy.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....16%/52%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of light freezing rain in the evening.
Southeast winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Breezy. Chance of rain and light freezing rain in the
morning. rain likely in the afternoon and evening. snow likely.
South winds 20 to 25 knots. Waves 8 to 12 feet.
.MONDAY...Very windy. Chance of snow. Northwest gales to
40 knots. Waves 8 to 12 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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