FZUS53 KDTX 221507
NSHDTX
Experimental Tabular Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
1107 AM EDT Tue Apr 22 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, 30.10 inches, will move across the Great Lakes today.
It will then hold nearly stationary over the eastern Great Lakes
tonight through Wednesday night while strengthening to 30.30 inches.
Low pressure is forecast to track across the Ohio Valley and eastern
Great Lakes Friday into Friday night, brining a chance of rain to
the region. High pressure will then expand across the region from
the north this weekend.
LHZ422-222000-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
1107 AM EDT Tue Apr 22 2025
.This Afternoon...
Weather.............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.....35%/90%.
.TONIGHT...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Northeast 10 to 15 knots.
100-ft winds........Northeast 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....35%/30%.
.WEDNESDAY...
Weather.............Partly sunny with chance of showers, then
mostly sunny in the afternoon.
Sfc winds...........Northeast 10 to 15 knots.
100-ft winds........Northeast 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....3%/30%.
.WEDNESDAY NIGHT...
Weather.............Partly cloudy, then mostly cloudy with chance
of showers after midnight.
Sfc winds...........Northeast 10 to 15 knots becoming east after
midnight.
100-ft winds........Northeast 15 to 20 knots becoming east after
midnight.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....13%/30%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
.FRIDAY...Chance of showers in the morning. showers likely in the
afternoon and evening. Northeast winds 15 to 20 knots. Waves 2 to
4 feet.
.SATURDAY...Northeast winds 15 to 20 knots. Waves 2 to 4 feet.
$$
LHZ421-222000-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
1107 AM EDT Tue Apr 22 2025
.This Afternoon...
Weather.............Sunny.
Sfc winds...........Southwest 15 to 20 knots.
100-ft winds........Southwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
Prob SmCrft/Gst.....38%/95%.
.TONIGHT...
Weather.............Mostly cloudy with a slight chance of showers.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....37%/36%.
.WEDNESDAY...
Weather.............Mostly sunny.
Sfc winds...........Northeast 10 to 15 knots.
100-ft winds........Northeast 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....4%/36%.
.WEDNESDAY NIGHT...
Weather.............Partly cloudy, then mostly cloudy with chance
of showers after midnight.
Sfc winds...........Northeast 10 to 15 knots becoming east after
midnight.
100-ft winds........Northeast 15 to 20 knots becoming east after
midnight.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....14%/35%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
.FRIDAY...Chance of showers in the morning. showers likely in the
afternoon and evening. Northeast winds 15 to 20 knots. Waves 2 to
4 feet.
.SATURDAY...Northeast winds 15 to 20 knots. Waves 2 to 4 feet.
$$
LHZ441-222000-
Port Austin to Harbor Beach MI-
1107 AM EDT Tue Apr 22 2025
.This Afternoon...
Weather.............Sunny.
Sfc winds...........West 15 to 20 knots.
100-ft winds........West 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 5 feet.
Prob SmCrft/Gst.....27%/93%.
.TONIGHT...
Weather.............Mostly cloudy with a slight chance of showers.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....27%/32%.
.WEDNESDAY...
Weather.............Mostly sunny.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....0%/32%.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........East 10 to 15 knots becoming southeast 5 to 10
knots after midnight.
100-ft winds........East 15 to 20 knots becoming southeast 10 to 15
knots after midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....0%/25%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
.FRIDAY...Chance of showers in the morning. showers likely in the
afternoon and evening. Northeast winds 15 to 20 knots. Waves 2 to
4 feet.
.SATURDAY...Northeast winds 15 to 20 knots. Waves 2 to 4 feet.
$$
LHZ442-222000-
Harbor Beach to Port Sanilac MI-
1107 AM EDT Tue Apr 22 2025
.This Afternoon...
Weather.............Sunny.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....6%/73%.
.TONIGHT...
Weather.............Mostly cloudy with a slight chance of showers.
Sfc winds...........East 5 to 10 knots.
100-ft winds........East 10 to 15 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....6%/20%.
.WEDNESDAY...
Weather.............Mostly sunny.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....1%/20%.
.WEDNESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........East 10 to 15 knots becoming southeast 5 to 10
knots after midnight.
100-ft winds........East 15 to 20 knots becoming southeast 10 to 15
knots after midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....2%/20%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
.FRIDAY...Chance of showers in the morning. showers likely in the
afternoon and evening. Northeast winds 15 to 20 knots. Waves 2 to
4 feet.
.SATURDAY...Northeast winds 15 to 20 knots. Waves 2 to 4 feet.
$$
LHZ443-222000-
Port Sanilac to Port Huron MI-
1107 AM EDT Tue Apr 22 2025
.This Afternoon...
Weather.............Sunny.
Sfc winds...........West 10 to 15 knots.
100-ft winds........West 15 to 20 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....6%/46%.
.TONIGHT...
Weather.............Mostly cloudy with a slight chance of showers.
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...........1 to 3 feet.
Prob SmCrft/Gst.....6%/11%.
.WEDNESDAY...
Weather.............Mostly sunny.
Sfc winds...........East 10 to 15 knots.
100-ft winds........East 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....1%/11%.
.WEDNESDAY NIGHT...
Weather.............Mostly cloudy.
Sfc winds...........Northeast 10 to 15 knots becoming southeast 5
to 10 knots after midnight.
100-ft winds........Northeast 15 to 20 knots becoming southeast 10
to 15 knots after midnight.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....2%/11%.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
.FRIDAY...Chance of showers in the morning. showers likely in the
afternoon and evening. Northeast winds 15 to 20 knots. Waves 2 to
4 feet.
.SATURDAY...Northeast winds 15 to 20 knots. Waves 2 to 4 feet.
$$
LEZ444-222000-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
1107 AM EDT Tue Apr 22 2025
.This Afternoon...
Weather.............Sunny.
Sfc winds...........West 5 to 10 knots becoming south 10 to 15
knots in the afternoon.
100-ft winds........West 10 to 15 knots becoming south 15 to 20
knots in the afternoon.
Sig waves...........1 to 3 feet.
.TONIGHT...
Weather.............Partly cloudy with a slight chance of showers.
Sfc winds...........Southeast 10 to 15 knots.
100-ft winds........Southeast 15 to 20 knots.
Sig waves...........1 to 3 feet.
.WEDNESDAY...
Weather.............Mostly sunny.
Sfc winds...........South 5 to 10 knots.
100-ft winds........South 10 to 15 knots.
Sig waves...........2 feet or less.
.WEDNESDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........East 5 to 10 knots.
100-ft winds........East 10 to 15 knots.
Sig waves...........1 to 3 feet.
.FORECAST DAYS 3 THROUGH 5...
.THURSDAY...East winds 5 to 10 knots. Waves 1 to 3 feet.
.FRIDAY...Chance of showers in the morning. showers likely in the
afternoon and evening. Northeast winds 15 to 20 knots. Waves 2 to
4 feet.
.SATURDAY...Northeast winds 15 to 20 knots. Waves 2 to 4 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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