FZUS53 KDTX 302107
NSHDTX
Experimental Tabular Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
507 PM EDT Thu Apr 30 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...A diffuse low pressure system, 30.00, will very gradually move
across the Great Lakes through the late week period. This will bring
periods of isolated rain showers and will generally maintain lighter
northwest flow.
LHZ422-010200-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
507 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Partly cloudy.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....2%/11%.
.FRIDAY...
Weather.............Partly sunny, then slight chance of showers in
the afternoon.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....2%/23%.
.FRIDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....2%/13%.
.SATURDAY...
Weather.............Mostly sunny.
Sfc winds...........Northwest 10 to 15 knots becoming north 5 to 10
knots in the afternoon.
100-ft winds........Northwest 15 to 20 knots becoming north 10 to
15 knots in the afternoon.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....1%/13%.
.SATURDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........North 5 to 10 knots becoming south after
midnight.
100-ft winds........North 10 to 15 knots becoming south after
midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....39%/13%.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Breezy. Chance of showers. Southwest winds 20 to
25 knots. Waves 4 to 6 feet.
.TUESDAY...Chance of showers. West winds 10 to 15 knots. Waves
3 to 5 feet.
$$
LHZ421-010200-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
507 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Partly cloudy with a slight chance of showers,
then partly cloudy with a slight chance of rain
and snow showers after midnight.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....3%/11%.
.FRIDAY...
Weather.............Partly sunny with a slight chance of snow
showers, then partly sunny with a slight chance
of showers in the afternoon.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....3%/18%.
.FRIDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........North 5 to 10 knots becoming northwest 10 to 15
knots after midnight.
100-ft winds........North 10 to 15 knots becoming northwest 15 to
20 knots after midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....3%/18%.
.SATURDAY...
Weather.............Mostly sunny.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....2%/18%.
.SATURDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Northeast 5 to 10 knots becoming south after
midnight.
100-ft winds........Northeast 10 to 15 knots becoming south after
midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....36%/18%.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Breezy. Chance of showers. Southwest winds 20 to
25 knots. Waves 4 to 6 feet.
.TUESDAY...Chance of showers. West winds 10 to 15 knots. Waves
3 to 5 feet.
$$
LHZ441-010200-
Port Austin to Harbor Beach MI-
507 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Mostly cloudy, then partly cloudy with a slight
chance of rain and snow showers after midnight.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....1%/10%.
.FRIDAY...
Weather.............Partly sunny with a slight chance of rain and
snow showers, then mostly sunny in the
afternoon.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....1%/10%.
.FRIDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....1%/10%.
.SATURDAY...
Weather.............Sunny.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....0%/17%.
.SATURDAY NIGHT...
Weather.............Mostly clear.
Sfc winds...........Northeast 5 to 10 knots becoming south after
midnight.
100-ft winds........Northeast 10 to 15 knots becoming south after
midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....27%/17%.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Breezy. Chance of showers. Southwest winds 20 to
25 knots. Waves 4 to 6 feet.
.TUESDAY...Chance of showers. West winds 10 to 15 knots. Waves
3 to 5 feet.
$$
LHZ442-010200-
Harbor Beach to Port Sanilac MI-
507 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Partly cloudy with a slight chance of showers,
then partly cloudy after midnight.
Sfc winds...........North 5 to 10 knots in the evening becoming
light and variable.
100-ft winds........North 10 to 15 knots in the evening becoming
light and variable.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....3%/12%.
.FRIDAY...
Weather.............Mostly sunny, then slight chance of showers in
the afternoon.
Sfc winds...........Northwest 5 to 10 knots becoming north in the
afternoon.
100-ft winds........Northwest 10 to 15 knots becoming north in the
afternoon.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....2%/12%.
.FRIDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....1%/12%.
.SATURDAY...
Weather.............Mostly sunny.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....0%/12%.
.SATURDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northeast 5 to 10 knots becoming southwest
after midnight.
100-ft winds........Northeast 10 to 15 knots becoming southwest
after midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....24%/12%.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Breezy. Chance of showers. Southwest winds 20 to
25 knots. Waves 4 to 6 feet.
.TUESDAY...Chance of showers. West winds 10 to 15 knots. Waves
3 to 5 feet.
$$
LHZ443-010200-
Port Sanilac to Port Huron MI-
507 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Partly cloudy with chance of showers, then
partly cloudy after midnight.
Sfc winds...........North 5 to 10 knots in the evening becoming
light and variable.
100-ft winds........North 10 to 15 knots in the evening becoming
light and variable.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....3%/15%.
.FRIDAY...
Weather.............Mostly sunny, then slight chance of showers in
the afternoon.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....1%/15%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........North 5 to 10 knots.
100-ft winds........North 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....1%/11%.
.SATURDAY...
Weather.............Mostly sunny.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....0%/11%.
.SATURDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northeast 5 to 10 knots becoming southeast
after midnight.
100-ft winds........Northeast 10 to 15 knots becoming southeast
after midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....27%/11%.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Breezy. Chance of showers. Southwest winds 20 to
25 knots. Waves 4 to 6 feet.
.TUESDAY...Chance of showers. West winds 10 to 15 knots. Waves
3 to 5 feet.
$$
LEZ444-010200-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
507 PM EDT Thu Apr 30 2026
.Tonight...
Weather.............Showers likely.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....1%/14%.
.FRIDAY...
Weather.............Mostly cloudy with chance of showers, then
partly sunny with chance of showers and slight
chance of thunderstorms in the afternoon.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........2 feet or less.
Prob SmCrft/Gst.....2%/14%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
partly cloudy after midnight.
Sfc winds...........West 5 to 10 knots.
100-ft winds........West 10 to 15 knots.
Sig waves...........2 feet or less.
.SATURDAY...
Weather.............Mostly sunny.
Sfc winds...........North 5 to 10 knots becoming northwest in the
afternoon.
100-ft winds........North 10 to 15 knots becoming northwest in the
afternoon.
Sig waves...........2 feet or less.
.SATURDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest 5 to 10 knots.
100-ft winds........Northwest 10 to 15 knots.
Sig waves...........2 feet or less.
.FORECAST DAYS 3 THROUGH 5...
.SUNDAY...Southwest winds 10 to 15 knots. Waves 2 to 4 feet.
.MONDAY...Breezy. Chance of showers. Southwest winds 20 to
25 knots. Waves 4 to 6 feet.
.TUESDAY...Chance of showers. West winds 10 to 15 knots. Waves
3 to 5 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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