Marine Forecast
Illustrated map of Grand Traverse Bay

Marine forecast

New Buffalo MI to St. Joseph

current wind
2 kt W
Gusts
4 kt
Seas
1.0 ft
Period
3 sec
Air
67°F

Observed Tue 3:00 PM | LMZ043

Gusts now
4 kt
Seas now
1.0 ft · 3 sec
Air
67°F
Water
63°F
72-hr peak
34 kt

In brief

At 3:00 pm EDT on Oct 13, 2026, NDBC station 45026 (Cook Nuclear Plant Buoy, Stevensville, MI, 4 miles away) measured wind from the W at 2 kt, gusting to 4 kt, with seas of 1.0 ft. The NWS forecast for New Buffalo MI to St. Joseph issued at 10:02 am EDT on Oct 13, 2026 reads, for rest of today: “Southwest winds 5 to 15 knots becoming west less than 10 knots. Sunny.”

Source: National Weather Service Northern Indiana forecast; NDBC observations

Wind forecast · ktPeak 34 kt

0510152025303540Wed 14Thu 15Fri 160510152025303540Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | EDT

Seas forecast · ftPeak 15 ft

0123456789101112131415Wed 14Thu 15Fri 160123456789101112131415Wed 14Thu 15Fri 16
Oct 13-16 | EDT

NWS marine forecast

PeriodForecast
Rest Of TodaySouthwest winds 5 to 15 knots becoming west less than 10 knots. Sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet.
TonightLight and variable winds. Showers likely with a chance of thunderstorms overnight. Waves 1 foot or less.
WednesdayNortheast winds 10 knots or less becoming north 10 to 15 knots. A chance of showers with a slight chance of thunderstorms in the morning. Waves 1 to 3 feet.
Wednesday NightNorth winds 10 to 15 knots becoming east. Mostly cloudy. Waves 2 to 4 feet subsiding to 1 to 3 feet. Winds and waves higher in and near thunderstorms. The water temperature at St. Joseph is 63 degrees and at Michigan City is 62 degrees.

Issued Tue 10:02 AM by Northern Indiana (product NSHIWX).

TimeWindGustSeasWater
Tue 3:00 PM 2 kt W 4 kt 1.0 ft 63°F
Tue 2:50 PM 2 kt W 2 kt 1.0 ft 63°F
Tue 1:50 PM 2 kt W 4 kt 1.3 ft 62°F
Tue 12:50 PM 4 kt WSW 4 kt 1.6 ft 62°F
Tue 11:50 AM 8 kt SW 12 kt 2.0 ft 62°F
Tue 10:50 AM 8 kt SW 10 kt 2.0 ft 62°F
Tue 9:50 AM 14 kt SSW 16 kt 1.6 ft 62°F
Tue 8:50 AM 12 kt SSW 14 kt 2.0 ft 62°F
Tue 7:50 AM 10 kt SSW 14 kt 1.6 ft 62°F
Tue 6:50 AM 10 kt SSW 12 kt 1.6 ft 62°F
Tue 5:50 AM 12 kt S 14 kt 1.6 ft 62°F
Tue 4:50 AM 10 kt S 12 kt 1.6 ft 62°F

Observed Tue 3:00 PM at NDBC buoy 45026 (Cook Nuclear Plant Buoy, Stevensville, MI), 4.1 miles away.

What is the marine forecast for New Buffalo MI to St. Joseph today?

Rest Of Today: Southwest winds 5 to 15 knots becoming west less than 10 knots. Sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet.

Is there a small craft advisory for New Buffalo MI to St. Joseph?

No advisories, warnings or watches are in effect for NWS zone LMZ043 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.

How high are the waves at New Buffalo MI to St. Joseph right now?

Seas are running 1.0 ft at a 3-second period, measured at NDBC buoy 45026 Tue 3:00 PM, 4.1 miles from this zone. The forecast peaks at 15.0 ft Fri 3 PM.

What is the water temperature at New Buffalo MI to St. Joseph?

The nearest buoy read 63°F (17°C) at Tue 3:00 PM. Sea surface temperature at a single buoy can differ by several degrees from the water at a beach or in a shallow bay nearby.

What do the wind speeds in knots mean?

One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.

Where does this forecast come from?

The forecast text is the National Weather Service's own marine bulletin for zone LMZ043, issued by Northern Indiana, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.

Forecast: NOAA/NWS product NSHIWX, issued Tue 10:02 AM. Observations: NOAA National Data Buoy Center station 45026, read Tue 3:00 PM. Retrieved Oct 13, 3:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.