Marine Forecast
Illustrated map of Grand Lake St Marys

Marine forecast

Willowick–Geneva-on-the-Lake (5+ nm), OH

current wind
8 kt S
Gusts
12 kt
Seas
1.3 ft
Period
4 sec
Air
70°F

Observed Tue 3:00 PM | LEZ167

Gusts now
12 kt
Seas now
1.3 ft · 4 sec
Air
70°F
Water
66°F
72-hr peak
34 kt

In brief

At 3:00 pm EDT on Oct 13, 2026, NDBC station 45207 (Mentor Harbor Buoy, 13 miles away) measured wind from the S at 8 kt, gusting to 12 kt, with seas of 1.3 ft. The NWS forecast for Willowick–Geneva-on-the-Lake (5+ nm), OH issued at 9:43 am EDT on Oct 13, 2026 reads, for rest of today: “Southwest winds 15 to 20 knots. A slight chance of showers and thunderstorms late this morning.”

Source: National Weather Service Cleveland OH forecast; NDBC observations

Wind forecast · ktPeak 34 kt

051015202530354045Wed 14Thu 15Fri 16051015202530354045Wed 14Thu 15Fri 16
Sustained GustOct 13-16 | EDT

Seas forecast · ftPeak 10 ft

012345678910Wed 14Thu 15Fri 16012345678910Wed 14Thu 15Fri 16
Oct 13-16 | EDT

NWS marine forecast

PeriodForecast
Rest Of TodaySouthwest winds 15 to 20 knots. A slight chance of showers and thunderstorms late this morning. Waves 3 to 6 feet.
TonightWest winds 15 to 20 knots becoming northwest 5 to 15 knots. A slight chance of showers and thunderstorms late. Waves 3 to 6 feet subsiding to 1 to 3 feet.
WednesdayNorthwest winds 5 to 15 knots. A chance of showers. Waves 1 to 2 feet.
Wednesday NightNorth winds 10 to 15 knots becoming northeast. Waves 1 to 3 feet building to 2 to 4 feet.
ThursdayNortheast winds 10 to 15 knots becoming south 15 to 20 knots. A chance of showers during the day, then showers Thursday night. Waves 1 to 3 feet.
FridayWest winds to 30 knots becoming northwest and increasing to 35 knot gales. Showers likely during the day, then a chance of showers Friday night. Waves 6 to 9 feet building to 9 to 12 feet. Waves occasionally around 15 feet.
SaturdayNorthwest winds to 30 knots becoming west and diminishing to 10 to 15 knots. Waves 7 to 10 feet subsiding to 3 to 5 feet. Waves occasionally around 13 feet. Winds and waves higher in and near thunderstorms.

Issued Tue 9:43 AM by Cleveland OH (product GLFLE).

Synopsis

Low pressure 29.80 inches passes north of the lake today dragging a cold front over Lake Erie this evening. The front will push south Wednesday morning before high pressure 30.10 inches briefly builds north of the lake Wednesday night and Thursday. A strong cold front will pass over the region Friday morning as low pressure 29.60 inches moves north of the lake. High pressure 30.40 inches builds in from the west Saturday. LEZ162-163-132015- Detroit River Lt. to Maumee Bay OH to Reno Beach OH beyond 5NM offshoreline to US-Canadian border- Reno Beach to The Islands OH beyond 5NM off shoreline to US- Canadian border- 943 AM EDT Tue Oct 13 2026

TimeWindGustSeasWater
Tue 3:00 PM 8 kt S 12 kt 1.3 ft 66°F
Tue 2:50 PM 8 kt S 12 kt 1.6 ft 66°F
Tue 1:50 PM 10 kt SW 14 kt 1.6 ft 66°F
Tue 12:50 PM 10 kt SSW 14 kt 1.6 ft 66°F
Tue 11:50 AM 12 kt S 18 kt 1.6 ft 66°F
Tue 10:50 AM 14 kt S 19 kt 1.6 ft 66°F
Tue 9:50 AM 14 kt SSE 19 kt 1.6 ft 66°F
Tue 8:50 AM 12 kt SSE 18 kt 1.6 ft 66°F
Tue 7:50 AM 12 kt SE 18 kt 1.3 ft 66°F
Tue 6:50 AM 12 kt SE 18 kt 1.3 ft 66°F
Tue 5:50 AM 10 kt SE 16 kt 1.3 ft 66°F
Tue 4:50 AM 8 kt SSE 14 kt 1.6 ft 66°F

Observed Tue 3:00 PM at NDBC buoy 45207 (Mentor Harbor Buoy), 12.9 miles away.

What is the marine forecast for Willowick–Geneva-on-the-Lake (5+ nm) today?

Rest Of Today: Southwest winds 15 to 20 knots. A slight chance of showers and thunderstorms late this morning. Waves 3 to 6 feet.

Is there a small craft advisory for Willowick–Geneva-on-the-Lake (5+ nm)?

No advisories, warnings or watches are in effect for NWS zone LEZ167 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 Willowick–Geneva-on-the-Lake (5+ nm) right now?

Seas are running 1.3 ft at a 4-second period, measured at NDBC buoy 45207 Tue 3:00 PM, 12.9 miles from this zone. The forecast peaks at 10.0 ft Fri 2 PM.

What is the water temperature at Willowick–Geneva-on-the-Lake (5+ nm)?

The nearest buoy read 66°F (19°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 LEZ167, issued by Cleveland OH, 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 GLFLE, issued Tue 9:43 AM. Observations: NOAA National Data Buoy Center station 45207, 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.