FZUS53 KDTX 212107
NSHDTX
Experimental Tabular Nearshore Marine Forecast for Michigan
National Weather Service Detroit/Pontiac MI
507 PM EDT Wed May 21 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...Low pressure, 29.60 inches, will slow meander across Lake Erie
through tomorrow afternoon. This will reinforce northeast flow
across Lake Huron while backing flow from northeast to northwest
across Lake St. Clair and Lake Erie today.
LHZ422-220200-
Inner Saginaw Bay SW of Point Au Gres to Bay Port MI-
507 PM EDT Wed May 21 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...
.Tonight...
Weather.............Showers likely and patchy fog.
Sfc winds...........Northeast 20 to 25 knots.
100-ft winds........Northeast to 30 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....56%/99%.
Prob Gale/Gst.......9%/27%.
.THURSDAY...
Weather.............Cloudy with chance of showers and patchy fog,
then cloudy with chance of showers in the
afternoon.
Sfc winds...........North 20 to 25 knots.
100-ft winds........North to 30 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
Prob SmCrft/Gst.....52%/99%.
Prob Gale/Gst.......7%/27%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
mostly cloudy after midnight.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....47%/90%.
Prob Gale/Gst.......7%/14%.
.FRIDAY...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....37%/90%.
Prob Gale/Gst.......0%/14%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
partly cloudy after midnight.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....36%/70%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 10 knots. Waves 1 to 3 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
$$
LHZ421-220200-
Outer Saginaw Bay SW of Alabaster to Port Austin MI to Inner
Saginaw Bay-
507 PM EDT Wed May 21 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...
.Tonight...
Weather.............Showers and patchy fog, then showers likely and
patchy fog after midnight.
Sfc winds...........Northeast 20 to 25 knots.
100-ft winds........Northeast to 30 knots.
Sig waves...........5 to 7 feet.
Ocnl waves..........Around 9 feet.
Prob SmCrft/Gst.....68%/99%.
Prob Gale/Gst.......10%/27%.
.THURSDAY...
Weather.............Showers likely and patchy fog, then showers
likely in the afternoon.
Sfc winds...........North 20 to 25 knots.
100-ft winds........North to 30 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....64%/99%.
Prob Gale/Gst.......7%/27%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy, then chance of showers after
midnight.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....50%/84%.
.FRIDAY...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet in the morning.
Prob SmCrft/Gst.....34%/84%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
mostly cloudy after midnight.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....30%/70%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 10 knots. Waves 1 to 3 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
$$
LHZ441-220200-
Port Austin to Harbor Beach MI-
507 PM EDT Wed May 21 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...
.Tonight...
Weather.............Showers and patchy fog, then showers likely
after midnight.
Sfc winds...........Northeast 15 to 20 knots.
100-ft winds........Northeast 20 to 25 knots.
Sig waves...........4 to 6 feet.
Ocnl waves..........Around 8 feet.
Prob SmCrft/Gst.....50%/98%.
Prob Gale/Gst.......0%/11%.
.THURSDAY...
Weather.............Showers likely and patchy fog, then showers
likely with areas of dense fog in the
afternoon.
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.....45%/98%.
Prob Gale/Gst.......0%/11%.
.THURSDAY NIGHT...
Weather.............Cloudy with showers likely, then mostly cloudy
with chance of showers after midnight.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....39%/81%.
.FRIDAY...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
Prob SmCrft/Gst.....11%/81%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
mostly cloudy after midnight.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....11%/61%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 10 knots. Waves 1 to 3 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
$$
LHZ442-220200-
Harbor Beach to Port Sanilac MI-
507 PM EDT Wed May 21 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...
.Tonight...
Weather.............Showers and patchy fog, then showers likely and
patchy fog after midnight.
Sfc winds...........Northeast 15 to 20 knots.
100-ft winds........Northeast 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....48%/98%.
.THURSDAY...
Weather.............Showers likely and patchy fog.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....51%/98%.
Prob Gale/Gst.......1%/13%.
.THURSDAY NIGHT...
Weather.............Cloudy with showers likely, then mostly cloudy
with chance of showers after midnight.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....41%/78%.
.FRIDAY...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....15%/78%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
mostly cloudy after midnight.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....15%/54%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 10 knots. Waves 1 to 3 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
$$
LHZ443-220200-
Port Sanilac to Port Huron MI-
507 PM EDT Wed May 21 2025
...SMALL CRAFT ADVISORY IN EFFECT THROUGH THURSDAY EVENING...
.Tonight...
Weather.............Showers likely and patchy fog.
Sfc winds...........North 10 to 15 knots.
100-ft winds........North 15 to 20 knots.
Sig waves...........2 to 4 feet.
Ocnl waves..........Around 5 feet.
Prob SmCrft/Gst.....42%/91%.
.THURSDAY...
Weather.............Showers likely and patchy fog, then showers
likely in the afternoon.
Sfc winds...........North 15 to 20 knots.
100-ft winds........North 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....46%/96%.
.THURSDAY NIGHT...
Weather.............Cloudy with showers likely, then mostly cloudy
with chance of showers after midnight.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........3 to 5 feet.
Ocnl waves..........Around 6 feet.
Prob SmCrft/Gst.....42%/74%.
.FRIDAY...
Weather.............Mostly cloudy with chance of showers.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....21%/74%.
.FRIDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
mostly cloudy after midnight.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....21%/34%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 10 knots. Waves 1 to 3 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
$$
LEZ444-220200-
Michigan Waters of Lake Erie from Detroit River to North Cape MI-
507 PM EDT Wed May 21 2025
.Tonight...
Weather.............Showers with possible thunderstorms and fog,
then cloudy with chance of showers after
midnight.
Sfc winds...........North 5 to 10 knots becoming west 10 to 15
knots after midnight.
100-ft winds........North 10 to 15 knots becoming west 15 to 20
knots after midnight.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....15%/86%.
.THURSDAY...
Weather.............Cloudy with chance of showers.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....12%/91%.
.THURSDAY NIGHT...
Weather.............Mostly cloudy with chance of showers, then
partly cloudy after midnight.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....11%/88%.
.FRIDAY...
Weather.............Mostly sunny.
Sfc winds...........Northwest 15 to 20 knots.
100-ft winds........Northwest 20 to 25 knots.
Sig waves...........2 to 4 feet.
Prob SmCrft/Gst.....5%/88%.
.FRIDAY NIGHT...
Weather.............Partly cloudy.
Sfc winds...........Northwest 10 to 15 knots.
100-ft winds........Northwest 15 to 20 knots.
Sig waves...........1 to 3 feet.
Prob SmCrft/Gst.....5%/23%.
.FORECAST DAYS 3 THROUGH 5...
.SATURDAY...Northwest winds 10 to 15 knots. Waves 2 to 4 feet.
.SUNDAY...Northwest winds 5 to 10 knots. Waves 1 to 3 feet.
.MONDAY...North winds 5 to 10 knots. Waves 1 to 3 feet.
$$
Occasional waves will only be displayed when values meet or exceed 5 feet.
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