FZUS53 KDTX 090907
NSHDTX
Experimental Tabular Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
407 AM EST Tue Dec 9 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...The next low pressure system will track through Lake Superior
tonight into Tuesday, leading to strong south-southwest winds
gusting to around 30 knots. An even stronger low, 29.30 inches, is
on track to move through Lower Michigan on Wednesday bringing snow
and rain.
LHZ422-091500-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
407 AM EST Tue Dec 9 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT...
.Today...
Weather.............Snow, then cloudy with a slight chance of snow
in the afternoon.
Sfc winds...........South to 30 knots.
100-ft winds........South gales to 35 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 7 feet.
Prob SmCrft/Gst.....48%/94%.
.TONIGHT...
Weather.............Cloudy with chance of snow, then snow after
midnight.
Sfc winds...........Southwest 10 to 15 knots becoming south 15 to
20 knots after midnight.
100-ft winds........Southwest 15 to 20 knots becoming south 20 to
25 knots after midnight.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....49%/94%.
.WEDNESDAY...
Weather.............Snow.
Sfc winds...........Southeast 20 to 25 knots becoming north to 30
knots in the afternoon.
100-ft winds........Southeast to 30 knots becoming north gales to
35 knots in the afternoon.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 7 feet.
Prob SmCrft/Gst.....52%/98%.
Prob Gale/Gst.......14%/25%.
.WEDNESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest to 30 knots.
100-ft winds........Northwest gales to 35 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....50%/63%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...Northwest winds 15 to 20 knots. Waves 6 to 9 feet.
.FRIDAY...Chance of snow in the afternoon. snow likely in the
evening, then chance of snow after midnight. West winds 15 to
20 knots. Waves 6 to 9 feet.
.SATURDAY...Breezy. Chance of snow. West winds 20 to 25 knots.
Waves 6 to 9 feet.
$$
LHZ421-091500-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
407 AM EST Tue Dec 9 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT...
.Today...
Weather.............Snow, then cloudy with chance of snow in the
afternoon.
Sfc winds...........South to 30 knots.
100-ft winds........South gales to 35 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
Prob SmCrft/Gst.....62%/98%.
Prob Gale/Gst.......5%/13%.
.TONIGHT...
Weather.............Mostly cloudy, then snow and slight chance of
rain after midnight.
Sfc winds...........Southwest 15 to 20 knots becoming south 10 to
15 knots after midnight.
100-ft winds........Southwest 20 to 25 knots becoming south 15 to
20 knots after midnight.
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.....63%/98%.
Prob Gale/Gst.......30%/13%.
.WEDNESDAY...
Weather.............Snow.
Sfc winds...........Southwest 20 to 25 knots increasing to north
gales to 35 knots in the afternoon.
100-ft winds........Southwest to 30 knots increasing to north gales
to 45 knots in the afternoon.
Sig waves...........6 to 9 feet building to 10 to 14 feet in the
afternoon.
Ocnl waves..........Around 10 feet building to around 18 feet in
the afternoon.
Prob SmCrft/Gst.....76%/99%.
Prob Gale/Gst.......30%/41%.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northwest to 30 knots.
100-ft winds........Northwest gales to 35 knots.
Sig waves...........10 to 14 feet subsiding to 6 to 9 feet after
midnight.
Ocnl waves..........Around 18 feet subsiding to around 13 feet
after midnight.
Prob SmCrft/Gst.....52%/75%.
Wave heights are for ice free areas.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...Northwest winds 15 to 20 knots. Waves 6 to 9 feet.
.FRIDAY...Chance of snow in the afternoon. snow likely in the
evening, then chance of snow after midnight. West winds 15 to
20 knots. Waves 6 to 9 feet.
.SATURDAY...Breezy. Chance of snow. West winds 20 to 25 knots.
Waves 6 to 9 feet.
$$
LHZ441-091500-
Port Austin to Harbor Beach MI-
407 AM EST Tue Dec 9 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT...
.Today...
Weather.............Mostly cloudy with chance of snow.
Sfc winds...........South 20 to 25 knots.
100-ft winds........South to 30 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....58%/99%.
Prob Gale/Gst.......1%/19%.
.TONIGHT...
Weather.............Cloudy, then snow and slight chance of rain
after midnight.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........3 to 5 feet subsiding to 2 to 4 feet after
midnight.
Ocnl waves..........Around 7 feet in the evening.
Prob SmCrft/Gst.....60%/99%.
Prob Gale/Gst.......29%/19%.
.WEDNESDAY...
Weather.............Rain and snow, then snow in the afternoon.
Sfc winds...........Southwest 15 to 20 knots increasing to north
gales to 35 knots in the afternoon.
100-ft winds........Southwest 20 to 25 knots increasing to north
gales to 45 knots in the afternoon.
Sig waves...........6 to 9 feet building to 10 to 14 feet in the
afternoon.
Ocnl waves..........Around 10 feet building to around 18 feet in
the afternoon.
Prob SmCrft/Gst.....91%/99%.
Prob Gale/Gst.......29%/71%.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with chance of snow.
Sfc winds...........Northwest gales to 35 knots decreasing to 30
knots after midnight.
100-ft winds........Northwest gales to 45 knots decreasing to 35
knots after midnight.
Sig waves...........10 to 14 feet.
Ocnl waves..........Around 17 feet.
Prob SmCrft/Gst.....62%/94%.
Prob Gale/Gst.......29%/19%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...Northwest winds 15 to 20 knots. Waves 4 to 6 feet.
.FRIDAY...Chance of snow in the afternoon. snow likely in the
evening, then chance of snow after midnight. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SATURDAY...Breezy. Chance of snow. West winds 20 to 25 knots.
Waves 4 to 6 feet.
$$
LHZ442-091500-
Harbor Beach to Port Sanilac MI-
407 AM EST Tue Dec 9 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT...
.Today...
Weather.............Snow, then snow likely in the afternoon.
Sfc winds...........South 20 to 25 knots.
100-ft winds........South to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....64%/99%.
Prob Gale/Gst.......0%/31%.
.TONIGHT...
Weather.............Mostly cloudy with a slight chance of snow,
then snow and slight chance of rain after
midnight.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....65%/99%.
Prob Gale/Gst.......10%/31%.
.WEDNESDAY...
Weather.............Snow and rain, then snow in the afternoon.
Sfc winds...........South 15 to 20 knots increasing to north to 30
knots in the afternoon.
100-ft winds........South 20 to 25 knots increasing to north gales
to 35 knots in the afternoon.
Sig waves...........3 to 5 feet building to 8 to 12 feet in the
afternoon.
Ocnl waves..........Around 6 feet building to around 15 feet in the
afternoon.
Prob SmCrft/Gst.....89%/99%.
Prob Gale/Gst.......10%/67%.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with chance of snow.
Sfc winds...........Northwest to 30 knots.
100-ft winds........Northwest gales to 35 knots.
Sig waves...........8 to 12 feet.
Ocnl waves..........Around 14 feet.
Prob SmCrft/Gst.....61%/98%.
Prob Gale/Gst.......10%/16%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...Northwest winds 15 to 20 knots. Waves 4 to 6 feet.
.FRIDAY...Chance of snow in the afternoon. snow likely in the
evening, then chance of snow after midnight. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SATURDAY...Breezy. Chance of snow. West winds 20 to 25 knots.
Waves 4 to 6 feet.
$$
LHZ443-091500-
Port Sanilac to Port Huron MI-
407 AM EST Tue Dec 9 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT...
.Today...
Weather.............Snow, then cloudy with a slight chance of snow
in the afternoon.
Sfc winds...........South 20 to 25 knots.
100-ft winds........South to 30 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....49%/98%.
.TONIGHT...
Weather.............Cloudy with chance of snow, then snow and
slight chance of rain after midnight.
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.....50%/98%.
.WEDNESDAY...
Weather.............Rain and snow, then snow in the afternoon.
Sfc winds...........South 20 to 25 knots becoming northwest to 30
knots in the afternoon.
100-ft winds........South to 30 knots becoming northwest gales to
35 knots in the afternoon.
Sig waves...........3 to 5 feet building to 6 to 9 feet in the
afternoon.
Ocnl waves..........Around 6 feet building to around 12 feet in the
afternoon.
Prob SmCrft/Gst.....61%/99%.
Prob Gale/Gst.......12%/31%.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy with chance of snow, then partly
cloudy after midnight.
Sfc winds...........Northwest to 30 knots.
100-ft winds........Northwest gales to 35 knots.
Sig waves...........6 to 9 feet.
Ocnl waves..........Around 11 feet.
Prob SmCrft/Gst.....49%/84%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...Northwest winds 15 to 20 knots. Waves 4 to 6 feet.
.FRIDAY...Chance of snow in the afternoon. snow likely in the
evening, then chance of snow after midnight. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SATURDAY...Breezy. Chance of snow. West winds 20 to 25 knots.
Waves 4 to 6 feet.
$$
LEZ444-091500-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
407 AM EST Tue Dec 9 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH LATE WEDNESDAY NIGHT...
.Today...
Weather.............Mostly cloudy with chance of snow with areas of
light freezing drizzle, then cloudy with patchy
light freezing drizzle in the afternoon.
Sfc winds...........South 20 to 25 knots.
100-ft winds........South to 30 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 7 feet.
Prob SmCrft/Gst.....50%/95%.
Prob Gale/Gst.......1%/13%.
.TONIGHT...
Weather.............Rain likely, then rain and snow after midnight.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 7 feet.
Prob SmCrft/Gst.....51%/95%.
Prob Gale/Gst.......6%/13%.
.WEDNESDAY...
Weather.............Rain and snow.
Sfc winds...........Southwest to 30 knots.
100-ft winds........Southwest gales to 35 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 7 feet.
Prob SmCrft/Gst.....55%/98%.
Prob Gale/Gst.......6%/31%.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northwest 20 to 25 knots.
100-ft winds........Northwest to 30 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet in the evening.
Prob SmCrft/Gst.....47%/53%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...Northwest winds 15 to 20 knots. Waves 4 to 6 feet.
.FRIDAY...Chance of snow in the afternoon. snow likely in the
evening, then chance of snow after midnight. West winds 15 to
20 knots. Waves 4 to 6 feet.
.SATURDAY...Breezy. Chance of snow. West winds 20 to 25 knots.
Waves 4 to 6 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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