FZUS53 KDTX 241507
NSHDTX
Experimental Tabular Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
1007 AM 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, 30.40 inches, fills in across the Great
Lakes today providing weaker winds and lower waves. A secondary high
pressure system, 30.50 inches, will then arrive near James Bay late
Thursday with an uptick in easterly wind speeds. A low pressure
system slides east on Friday with wintry precipitation.
LHZ422-242100-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
1007 AM EST Wed Dec 24 2025
.This Afternoon...
Weather.............Mostly cloudy.
Sfc winds...........Light and variable winds becoming southeast 5
to 10 knots in the afternoon.
100-ft winds........Light and variable winds becoming southeast 10
to 15 knots in the afternoon.
Sig waves...........Ice covered.
Prob SmCrft/Gst.....17%/43%.
.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........South 5 to 10 knots.
100-ft winds........South 10 to 15 knots.
Sig waves...........Ice covered.
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...........Ice covered.
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...........Ice covered.
Prob SmCrft/Gst.....21%/52%.
Waves omitted due to ice coverage.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Snow likely and freezing rain. slight chance of light
freezing rain and snow. East winds 15 to 20 knots.
.SATURDAY...Chance of rain after midnight. Southeast winds 10 to
15 knots.
.SUNDAY...Windy. Chance of rain in the morning. rain likely in
the afternoon. snow likely. West winds to 30 knots.
$$
LHZ421-242100-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
1007 AM EST Wed Dec 24 2025
.This Afternoon...
Weather.............Mostly cloudy.
Sfc winds...........Light and variable winds becoming south 5 to 10
knots in the afternoon.
100-ft winds........Light and variable winds becoming south 10 to
15 knots in the afternoon.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....30%/46%.
.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........South 5 to 10 knots.
100-ft winds........South 10 to 15 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....30%/46%.
.THURSDAY...
Weather.............Partly sunny.
Sfc winds...........North 20 to 25 knots.
100-ft winds........North to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....31%/61%.
.THURSDAY NIGHT...
Weather.............Cloudy.
Sfc winds...........East 20 to 25 knots.
100-ft winds........East to 30 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....33%/58%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Snow likely and freezing rain. slight chance of light
freezing rain and snow. East winds 15 to 20 knots. Waves 6 to
9 feet.
.SATURDAY...Chance of rain after midnight. Southeast winds 10 to
15 knots. Waves 3 to 5 feet.
.SUNDAY...Windy. Chance of rain in the morning. rain likely in
the afternoon. snow likely. West winds to 30 knots. Waves 14 to
18 feet.
$$
LHZ441-242100-
Port Austin to Harbor Beach MI-
1007 AM EST Wed Dec 24 2025
.This Afternoon...
Weather.............Mostly cloudy.
Sfc winds...........North 5 to 10 knots becoming south in the
afternoon.
100-ft winds........North 10 to 15 knots becoming south in the
afternoon.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....32%/67%.
.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%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Snow likely and freezing rain. slight chance of light
freezing rain and snow. East winds 15 to 20 knots. Waves 6 to
9 feet.
.SATURDAY...Chance of rain after midnight. Southeast winds 10 to
15 knots. Waves 3 to 5 feet.
.SUNDAY...Windy. Chance of rain in the morning. rain likely in
the afternoon. snow likely. West winds to 30 knots. Waves 14 to
18 feet.
$$
LHZ442-242100-
Harbor Beach to Port Sanilac MI-
1007 AM EST Wed Dec 24 2025
.This Afternoon...
Weather.............Mostly cloudy.
Sfc winds...........North 5 to 10 knots becoming south in the
afternoon.
100-ft winds........North 10 to 15 knots becoming south in the
afternoon.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....27%/63%.
.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........South 10 to 15 knots.
100-ft winds........South 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....31%/63%.
.THURSDAY...
Weather.............Partly sunny.
Sfc winds...........Northwest 15 to 20 knots becoming north in the
afternoon.
100-ft winds........Northwest 20 to 25 knots becoming north in the
afternoon.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....34%/72%.
Prob Gale/Gst.......1%/16%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northeast 15 to 20 knots becoming east 20 to 25
knots after midnight.
100-ft winds........Northeast 20 to 25 knots becoming east to 30
knots after midnight.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....33%/69%.
Prob Gale/Gst.......2%/16%.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Snow likely and freezing rain. slight chance of light
freezing rain and snow. East winds 15 to 20 knots. Waves 5 to
7 feet.
.SATURDAY...Chance of rain after midnight. Southeast winds 10 to
15 knots. Waves 2 to 4 feet.
.SUNDAY...Windy. Chance of rain in the morning. rain likely in
the afternoon. snow likely. West winds to 30 knots. Waves 8 to
12 feet.
$$
LHZ443-242100-
Port Sanilac to Port Huron MI-
1007 AM EST Wed Dec 24 2025
.This Afternoon...
Weather.............Mostly cloudy.
Sfc winds...........North 5 to 10 knots becoming south in the
afternoon.
100-ft winds........North 10 to 15 knots becoming south in the
afternoon.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....22%/45%.
.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%.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Snow likely and freezing rain. slight chance of light
freezing rain and snow. East winds 15 to 20 knots. Waves 5 to
7 feet.
.SATURDAY...Chance of rain after midnight. Southeast winds 10 to
15 knots. Waves 2 to 4 feet.
.SUNDAY...Windy. Chance of rain in the morning. rain likely in
the afternoon. snow likely. West winds to 30 knots. Waves 8 to
12 feet.
$$
LEZ444-242100-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1007 AM EST Wed Dec 24 2025
.This Afternoon...
Weather.............Mostly cloudy.
Sfc winds...........East 5 to 10 knots.
100-ft winds........East 10 to 15 knots.
Sig waves...........2 feet or less.
Prob SmCrft/Gst.....6%/28%.
.TONIGHT...
Weather.............Cloudy with chance of drizzle and slight chance
of light freezing drizzle, then mostly cloudy
with chance of drizzle and light freezing
drizzle after midnight.
Sfc winds...........Southeast 5 to 10 knots in the evening becoming
light and variable.
100-ft winds........Southeast 10 to 15 knots in the evening
becoming light and variable.
Sig waves...........2 feet or less.
Prob SmCrft/Gst.....15%/28%.
.THURSDAY...
Weather.............Mostly cloudy in the morning.
Sfc winds...........Northwest 5 to 10 knots becoming north 10 to 15
knots in the afternoon.
100-ft winds........Northwest 10 to 15 knots becoming north 15 to
20 knots in the afternoon.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....15%/51%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 15 to 20 knots.
100-ft winds........East 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....15%/51%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.FRIDAY...Snow likely and freezing rain. slight chance of light
freezing rain and snow. East winds 15 to 20 knots. Waves 5 to
7 feet.
.SATURDAY...Chance of rain after midnight. Southeast winds 10 to
15 knots. Waves 2 to 4 feet.
.SUNDAY...Windy. Chance of rain in the morning. rain likely in
the afternoon. snow likely. West winds to 30 knots. Waves 8 to
12 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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