NDBC has recently revised the NDBC Handbook of Automated Data Quality Control Checks and Procedures. The new document can be found on our Publications page.
National Weather Service Marine Forecast FZUS53 KMQT
FZUS53 KMQT 041911
NSHMQT
Nearshore Marine Forecast
National Weather Service Marquette MI
310 PM EDT Fri Apr 4 2025
For waters within five nautical miles of shore
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.
LMZ221-042015
Green Bay North of line from Cedar River MI to Rock Island
Passage
310 PM EDT Fri Apr 4 2025
REST OF TODAY
East wind less than 10 knots. Mostly cloudy.
Waves calm to 1 foot.
TONIGHT
East wind less than 10 knots through late evening
becoming variable. Mostly cloudy. A slight chance of rain showers
by midnight. A slight chance of rain showers possibly mixed with
freezing rain late. Waves calm to 1 foot.
SATURDAY
Northwest wind 5 to 15 knots. Mostly cloudy. A slight
chance of rain showers in the morning. Waves building to 1 to
2 feet.
SATURDAY NIGHT
Northwest wind 10 to 15 knots backing west
after midnight. Clear. Waves 1 to 2 feet.
LMZ248-250-042015
Seul Choix Point to Point Detour MI
5NM East of a line from Fairport MI to Rock Island Passage
310 PM EDT Fri Apr 4 2025
REST OF TODAY
East wind less than 10 knots. Mostly cloudy.
Waves calm to 1 foot.
TONIGHT
East wind less than 10 knots through midnight becoming
variable. Mostly cloudy. A slight chance of rain showers by
midnight. A slight chance of rain showers possibly mixed with
freezing rain late. Waves calm to 1 foot.
SATURDAY
Northwest wind 5 to 15 knots with gusts up to
24 knots. Mostly cloudy. A slight chance of rain showers in the
morning. Waves building to 1 to 2 feet.
SATURDAY NIGHT
Northwest wind 10 to 15 knots backing west
after midnight. Gusts up to 23 knots. Clear. Waves 1 to 2 feet.
LSZ240-241-042015
Saxon Harbor WI to Black River MI
Black River to Ontonagon MI
310 PM EDT Fri Apr 4 2025 /210 PM CDT Fri Apr 4 2025/
REST OF TODAY
Northeast wind less than 10 knots. Cloudy. Waves
calm to 1 foot.
TONIGHT
East wind less than 10 knots veering west with gusts
up to 19 knots by midnight, then veering northwest 10 to 15 knots
late. Cloudy. A slight chance of snow showers in the evening.
Rain showers likely through the night. Snow showers likely after
midnight. Waves building to 2 to 3 feet.
SATURDAY
Northwest wind 15 to 20 knots backing west in the
afternoon. Gusts up to 27 knots. Partly cloudy. A chance of snow
showers in the morning. Waves building to 3 to 5 feet
occasionally to 7 feet, then subsiding to 2 to 4 feet.
SATURDAY NIGHT
West wind 10 to 20 knots. Partly cloudy. A
slight chance of snow showers after midnight. Waves subsiding to
2 to 3 feet.
LSZ242-243-042015
Ontonagon to Upper Entrance of Portage Canal MI
Upper Entrance of Portage Canal to Eagle River MI
310 PM EDT Fri Apr 4 2025
REST OF TODAY
East wind less than 10 knots. Cloudy. Waves calm
to 1 foot.
TONIGHT
Southeast wind less than 10 knots veering southwest by
midnight, then veering northwest 10 to 15 knots late. Cloudy. A
slight chance of rain showers through late evening, then a chance
of rain showers by midnight. Snow showers possibly mixed with
rain showers late. Patchy fog late. Waves building to 1 to
2 feet.
SATURDAY
Northwest wind 15 to 20 knots backing west in the
afternoon. Mostly cloudy with a chance of snow showers in the
morning, then mostly sunny in the afternoon. Waves building to
3 to 5 feet occasionally to 7 feet.
SATURDAY NIGHT
West wind 10 to 20 knots. Partly cloudy with a
slight chance of snow showers in the evening, then mostly cloudy
with a chance of snow showers after midnight. Waves subsiding to
2 to 4 feet.
LSZ244-245-042015
Eagle River to Manitou Island MI
Manitou Island to Point Isabelle MI
310 PM EDT Fri Apr 4 2025
REST OF TODAY
Southeast wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
TONIGHT
Southeast wind 10 to 15 knots veering south by
midnight, then veering west 10 to 20 knots late. Cloudy. A slight
chance of rain showers through late evening. A chance of rain
showers by midnight. Snow showers likely late. Patchy fog late.
Waves building to 1 to 2 feet.
SATURDAY
Northwest wind 15 to 20 knots. Gusts up to 27 knots.
Mostly cloudy. A chance of snow showers in the morning. Waves
building to 3 to 6 feet occasionally to 8 feet.
SATURDAY NIGHT
West wind 10 to 20 knots. Partly cloudy in the
evening, then mostly cloudy with a chance of snow showers after
midnight. Waves subsiding to 2 to 4 feet.
LSZ246-042015
Point Isabelle to Lower Entrance of Portage Canal MI
310 PM EDT Fri Apr 4 2025
REST OF TODAY
East wind less than 10 knots. Mostly cloudy.
Waves calm to 1 foot.
TONIGHT
East wind less than 10 knots through late evening
becoming variable, then becoming west less than 10 knots late.
Cloudy. A chance of rain showers by midnight. A chance of rain
showers possibly mixed with snow showers late. Waves building to
1 to 2 feet.
SATURDAY
Northwest wind 10 to 15 knots backing west 15 to
20 knots in the afternoon. Partly cloudy. A chance of snow
showers in the morning. Waves calm to 1 foot.
SATURDAY NIGHT
West wind 10 to 20 knots diminishing to less
than 10 knots after midnight. Mostly clear with a slight chance
of snow showers in the evening, then mostly cloudy with a chance
of snow showers after midnight. Waves 1 to 2 feet.
LSZ247-042015
Lower Entrance of Portage Canal To Huron Islands MI Including
Keweenaw and Huron Bays
310 PM EDT Fri Apr 4 2025
REST OF TODAY
East wind less than 10 knots. Mostly cloudy.
Waves calm to 1 foot.
TONIGHT
Southeast wind less than 10 knots veering southwest by
midnight, then veering west late. Cloudy. A chance of rain
showers by midnight. A chance of rain showers possibly mixed with
snow showers late. Waves calm to 1 foot.
SATURDAY
Northwest wind 10 to 20 knots backing west 15 to
20 knots in the afternoon. Gusts up to 27 knots. Mostly cloudy
with a chance of snow showers possibly mixed with rain showers in
the morning, then mostly sunny in the afternoon. Waves building
to 2 to 4 feet.
SATURDAY NIGHT
West wind 10 to 20 knots. Mostly clear in the
evening, then mostly cloudy with a chance of snow showers after
midnight. Waves subsiding to 1 to 2 feet.
LSZ248-042015
Huron Islands to Marquette MI
310 PM EDT Fri Apr 4 2025
REST OF TODAY
Southeast wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
TONIGHT
Southeast wind less than 10 knots veering west 5 to
15 knots late. Mostly cloudy. A slight chance of rain showers by
midnight. A chance of rain showers possibly mixed with snow
showers late. Waves calm to 1 foot.
SATURDAY
Northwest wind 10 to 20 knots increasing to 20 to
25 knots in the afternoon. Cloudy with a chance of snow showers
possibly mixed with rain showers in the morning, then mostly
sunny in the afternoon. Waves building to 3 to 5 feet
occasionally to 7 feet.
SATURDAY NIGHT
West wind 15 to 25 knots diminishing to 10 to
15 knots after midnight. Mostly clear. A chance of snow showers
after midnight. Waves subsiding to 1 to 2 feet.
LSZ249-042015
Marquette to Munising MI
310 PM EDT Fri Apr 4 2025
REST OF TODAY
Southeast wind less than 10 knots. Mostly
cloudy. Waves calm to 1 foot.
TONIGHT
Southeast wind less than 10 knots veering southwest
late. Mostly cloudy. A slight chance of rain showers late. Waves
calm to 1 foot.
SATURDAY
Northwest wind 10 to 20 knots increasing to 20 to
25 knots in the afternoon. Cloudy with a chance of rain showers
and snow showers in the morning, then partly cloudy in the
afternoon. Waves building to 5 to 8 feet occasionally to 10 feet.
SATURDAY NIGHT
West wind 15 to 25 knots diminishing to 10 to
15 knots after midnight. Mostly clear. A slight chance of snow
showers after midnight. Waves subsiding to 2 to 3 feet.
LSZ250-042015
Munising to Grand Marais MI
310 PM EDT Fri Apr 4 2025
REST OF TODAY
East wind less than 10 knots. Mostly cloudy.
Waves calm to 1 foot.
TONIGHT
Southeast wind less than 10 knots veering south late.
Mostly cloudy. Waves calm to 1 foot.
SATURDAY
Northwest wind 10 to 20 knots increasing to 20 to
25 knots in the afternoon. Cloudy with a chance of rain showers
and snow showers in the morning, then partly cloudy in the
afternoon. Waves building to 6 to 9 feet occasionally to 11 feet.
SATURDAY NIGHT
Northwest wind 15 to 25 knots backing west
10 to 15 knots after midnight. Partly cloudy. A slight chance of
snow showers after midnight. Waves subsiding to 3 to 5 feet
occasionally to 7 feet.
LSZ251-042015
Grand Marais to Whitefish Point MI
310 PM EDT Fri Apr 4 2025
REST OF TODAY
East wind less than 10 knots. Partly cloudy.
Waves calm to 1 foot.
TONIGHT
Southeast wind less than 10 knots veering south late.
Mostly cloudy. Waves calm to 1 foot.
SATURDAY
West wind 10 to 20 knots veering northwest 20 to
25 knots in the afternoon. Cloudy with a chance of rain showers
possibly mixed with snow showers in the morning, then partly
cloudy with a slight chance of rain showers and snow showers in
the afternoon. Waves building to 6 to 9 feet occasionally to
11 feet.
SATURDAY NIGHT
Northwest wind 15 to 25 knots. Partly cloudy. A
slight chance of snow showers after midnight. Waves subsiding to
3 to 5 feet occasionally to 7 feet.
WFO MQT