FZUS53 KDTX 041508
NSHDTX
Experimental Tabular Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
1008 AM EST Thu Dec 4 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...A strong arctic cold front brings gusty northwest winds to the
central Great Lakes this morning. Much colder air activates lake
effect snow showers and is favorable for freezing spray through the
late week period.
LHZ422-042100-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
1008 AM EST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
.This Afternoon...
Weather.............Mostly sunny.
Sfc winds...........Northwest 20 to 25 knots becoming west 10 to 15
knots in the afternoon.
100-ft winds........Northwest to 30 knots becoming west 15 to 20
knots in the afternoon.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet late in the morning.
Prob SmCrft/Gst.....49%/84%.
.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 10 to 15 knots increasing to 20 to 25
knots after midnight.
100-ft winds........Southwest 15 to 20 knots increasing to 30 knots
after midnight.
Sig waves...........2 to 4 feet building to 4 to 6 feet after
midnight.
Ocnl waves..........Around 5 feet building to around 8 feet after
midnight.
Prob SmCrft/Gst.....50%/84%.
.FRIDAY...
Weather.............Partly sunny.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....50%/96%.
.FRIDAY NIGHT...
Weather.............Cloudy with chance of snow.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....49%/76%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of snow and slight chance of light freezing
rain in the morning. slight chance of snow. West winds 15 to
20 knots. Waves 6 to 9 feet.
.SUNDAY...Chance of snow in the morning. North winds 10 to
15 knots. Waves 3 to 5 feet.
.MONDAY...Chance of snow after midnight. Southwest winds 15 to
20 knots. Waves 5 to 7 feet.
$$
LHZ421-042100-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
1008 AM EST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
.This Afternoon...
Weather.............Partly sunny with freezing spray, then partly
sunny in the afternoon.
Sfc winds...........Northwest 20 to 25 knots.
100-ft winds........Northwest to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
Prob SmCrft/Gst.....54%/100%.
.TONIGHT...
Weather.............Mostly cloudy, then freezing spray after
midnight.
Sfc winds...........Southwest 15 to 20 knots increasing to 30 knots
after midnight.
100-ft winds........Southwest 20 to 25 knots increasing to 35 knot
gales after midnight.
Sig waves...........3 to 5 feet building to 6 to 9 feet after
midnight.
Ocnl waves..........Around 5 feet building to around 10 feet after
midnight.
Prob SmCrft/Gst.....54%/100%.
.FRIDAY...
Weather.............Partly sunny with freezing spray, then mostly
cloudy in the afternoon.
Sfc winds...........Southwest gales to 35 knots decreasing to 30
knots in the afternoon.
100-ft winds........Southwest gales to 45 knots decreasing to 35
knots in the afternoon.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 11 feet.
Prob SmCrft/Gst.....78%/100%.
Prob Gale/Gst.......15%/31%.
.FRIDAY NIGHT...
Weather.............Cloudy with chance of snow.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 10 feet.
Prob SmCrft/Gst.....51%/86%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of snow and slight chance of light freezing
rain in the morning. slight chance of snow. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SUNDAY...Chance of snow in the morning. North winds 10 to
15 knots. Waves 2 to 4 feet.
.MONDAY...Chance of snow after midnight. Southwest winds 15 to
20 knots. Waves 3 to 5 feet.
$$
LHZ441-042100-
Port Austin to Harbor Beach MI-
1008 AM EST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
.This Afternoon...
Weather.............Partly sunny with freezing spray, then partly
sunny in the afternoon.
Sfc winds...........Northwest to 30 knots decreasing to 15 to 20
knots in the afternoon.
100-ft winds........Northwest gales to 35 knots decreasing to 20 to
25 knots in the afternoon.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 11 feet.
Prob SmCrft/Gst.....79%/100%.
Prob Gale/Gst.......6%/41%.
.TONIGHT...
Weather.............Mostly cloudy.
Sfc winds...........West 10 to 15 knots increasing to southwest 20
to 25 knots after midnight.
100-ft winds........West 15 to 20 knots increasing to southwest to
30 knots after midnight.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....61%/100%.
Prob Gale/Gst.......6%/20%.
.FRIDAY...
Weather.............Partly sunny.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
Prob SmCrft/Gst.....61%/100%.
Prob Gale/Gst.......5%/20%.
.FRIDAY NIGHT...
Weather.............Snow likely.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....51%/94%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of snow and slight chance of light freezing
rain in the morning. slight chance of snow. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SUNDAY...Chance of snow in the morning. North winds 10 to
15 knots. Waves 2 to 4 feet.
.MONDAY...Chance of snow after midnight. Southwest winds 15 to
20 knots. Waves 3 to 5 feet.
$$
LHZ442-042100-
Harbor Beach to Port Sanilac MI-
1008 AM EST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
.This Afternoon...
Weather.............Partly sunny.
Sfc winds...........Northwest 20 to 25 knots.
100-ft winds........Northwest to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....64%/99%.
Prob Gale/Gst.......0%/14%.
.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........2 to 4 feet building to 3 to 5 feet after
midnight.
Ocnl waves..........Around 5 feet building to around 6 feet after
midnight.
Prob SmCrft/Gst.....55%/99%.
Prob Gale/Gst.......0%/10%.
.FRIDAY...
Weather.............Partly sunny.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....53%/99%.
Prob Gale/Gst.......0%/10%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy with chance of snow, then cloudy
with snow likely after midnight.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....48%/90%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of snow and slight chance of light freezing
rain in the morning. slight chance of snow. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SUNDAY...Chance of snow in the morning. North winds 10 to
15 knots. Waves 2 to 4 feet.
.MONDAY...Chance of snow after midnight. Southwest winds 15 to
20 knots. Waves 3 to 5 feet.
$$
LHZ443-042100-
Port Sanilac to Port Huron MI-
1008 AM EST Thu Dec 4 2025
...SMALL CRAFT ADVISORY IN EFFECT UNTIL 4 PM EST THIS AFTERNOON...
.This Afternoon...
Weather.............Partly sunny.
Sfc winds...........Northwest 20 to 25 knots.
100-ft winds........Northwest to 30 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....49%/91%.
.TONIGHT...
Weather.............Partly cloudy.
Sfc winds...........West 10 to 15 knots becoming southwest after
midnight.
100-ft winds........West 15 to 20 knots becoming southwest after
midnight.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet after midnight.
Prob SmCrft/Gst.....48%/89%.
.FRIDAY...
Weather.............Partly sunny.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....46%/89%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy with chance of snow.
Sfc winds...........Southwest 20 to 25 knots.
100-ft winds........Southwest to 30 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....46%/64%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of snow and slight chance of light freezing
rain in the morning. slight chance of snow. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SUNDAY...Chance of snow in the morning. North winds 10 to
15 knots. Waves 2 to 4 feet.
.MONDAY...Chance of snow after midnight. Southwest winds 15 to
20 knots. Waves 3 to 5 feet.
$$
LEZ444-042100-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1008 AM EST Thu Dec 4 2025
.This Afternoon...
Weather.............Mostly sunny.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....7%/54%.
.TONIGHT...
Weather.............Mostly clear.
Sfc winds...........West 5 to 10 knots becoming south 10 to 15
knots after midnight.
100-ft winds........West 10 to 15 knots becoming south 15 to 20
knots after midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....9%/47%.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........Southwest 10 to 15 knots.
100-ft winds........Southwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....9%/47%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
Prob SmCrft/Gst.....9%/47%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Chance of snow and slight chance of light freezing
rain in the morning. slight chance of snow. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SUNDAY...Chance of snow in the morning. North winds 10 to
15 knots. Waves 2 to 4 feet.
.MONDAY...Chance of snow after midnight. Southwest winds 15 to
20 knots. Waves 3 to 5 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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