Station Name: South Haven Buoy, MI
Station Type: Buoy
Data Source: National Data Buoy Center

Elevation Above Sea Level: 574 feet

Nearest Address:
Offshore
South Haven, MI 49090
Van Buren County

GPS Coordinates: 42.397, -86.331

Nearby Water Temperatures

Beach Hazards Statement issued June 11 at 11:12AM EDT until June 12 at 12:00PM EDT by NWS Grand Rapids MI

Effective: Thu June 11, 2026, 11:12 AM
Expires: Thu June 11, 2026, 7:15 PM

* WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN...From this evening through Friday morning. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Winds will increase this evening out of the southwest building waves to 3 to 6 feet tonight. The waves will persist into the morning hours of Friday. Dangerous waves and currents are expected tonight and Friday morning. Storms that sweep across the lake this evening may reach severe levels.

Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures.

Tornado Watch issued June 11 at 8:26PM EDT until June 12 at 2:00AM EDT by NWS Grand Rapids MI

Effective: Thu June 11, 2026, 8:26 PM
Expires: Fri June 12, 2026, 2:00 AM

THE NATIONAL WEATHER SERVICE HAS ISSUED TORNADO WATCH 318 IN EFFECT UNTIL 2 AM EDT FRIDAY FOR THE FOLLOWING AREAS IN MICHIGAN THIS WATCH INCLUDES 18 COUNTIES IN CENTRAL MICHIGAN GRATIOT ISABELLA MECOSTA MONTCALM IN SOUTH CENTRAL MICHIGAN CALHOUN CLINTON EATON INGHAM IONIA JACKSON IN SOUTHWEST MICHIGAN ALLEGAN BARRY KALAMAZOO KENT OTTAWA VAN BUREN IN WEST CENTRAL MICHIGAN MUSKEGON NEWAYGO THIS INCLUDES THE CITIES OF ALLEGAN, ALLENDALE, ALMA, BANFIELD, BATH, BATTLE CREEK, BELDING, BIG RAPIDS, BRADLEY, BRIDGETON, BROOKFIELD, CHARLOTTE, COVERT, CROTON HEIGHTS, DEWITT, DORR, DOWLING, EAST LANSING, EASTMANVILLE, EATON RAPIDS, ELM HALL, FENNVILLE, FOREST HILL, FREMONT, GOWEN, GRAND LEDGE, GRAND RAPIDS, GRAND VALLEY, GREENVILLE, GRESHAM, HARTFORD, HASTINGS, HAWKINS, HOLLAND, IONIA, IRVING, ITHACA, JACKSON, JENISON, KALAMAZOO, KEELER, LAMONT, LANGSTON, LANSING, MARNE, MATTAWAN, MCDONALD, MIDDLEVILLE, MOUNT PLEASANT, MUSKEGON, NEWAYGO, NORTON SHORES, ORLEANS, OTSEGO, PARIS, PAW PAW, PLAINWELL, PORTAGE, PORTLAND, REEMAN, RIVERDALE, SMYRNA, SOUTH HAVEN, ST. JOHNS, ST. LOUIS, TURK LAKE, WACOUSTA, WAVERLY, WAYLAND, WINN, WOODBURY, WOOSTER, AND WYOMING.

Beach Hazards Statement issued June 11 at 3:10PM EDT until June 12 at 12:00PM EDT by NWS Grand Rapids MI

Effective: Thu June 11, 2026, 3:10 PM
Expires: Thu June 11, 2026, 11:15 PM

* WHAT...High wave action, strong currents, and dangerous swimming conditions expected. Piers may be heavily swamped by waves. * WHERE...Mason, Oceana, Muskegon, Ottawa, Allegan and Van Buren counties. * WHEN...From this evening through Friday morning. * IMPACTS...Strong currents can pull swimmers into deeper water and high waves can sweep people off piers. * ADDITIONAL DETAILS...Winds will increase this evening out of the southwest building waves to 3 to 6 feet tonight. The waves will persist into the morning hours of Friday. Dangerous waves and currents are expected tonight and Friday morning. Storms that sweep across the lake this evening may reach severe levels.

Remain out of the water to avoid hazardous swimming conditions and do not venture out on piers. Please check with your local authorities on potential beach closures.

Severe Thunderstorm Warning issued June 11 at 8:11PM EDT until June 11 at 9:45PM EDT by NWS Grand Rapids MI

Effective: Thu June 11, 2026, 8:11 PM
Expires: Thu June 11, 2026, 9:45 PM

SVRGRR The National Weather Service in Grand Rapids has issued a * Severe Thunderstorm Warning for... Allegan County in southwestern Michigan... Ottawa County in southwestern Michigan... Muskegon County in west central Michigan... * Until 945 PM EDT. * At 811 PM EDT, a severe thunderstorm was located 31 miles west of Holland SP, or 36 miles northwest of South Haven, moving east at 60 mph. HAZARD...70 mph wind gusts and penny size hail. SOURCE...Radar indicated. IMPACT...Expect considerable tree damage. Damage is likely to mobile homes, roofs, and outbuildings. * Locations impacted include... Muskegon... Holland... Grand Haven... Allegan... Walker... Muskegon Heights... Hudsonville... Zeeland... Coopersville... Wayland... Otsego... Roosevelt Park... Plainwell... North Muskegon... Ferrysburg... Whitehall... Montague... Spring Lake... Fennville... Lakewood Club...

A Tornado Watch remains in effect until 200 AM EDT for southwestern and west central Michigan. For your protection move to an interior room on the lowest floor of a building. A Tornado Watch remains in effect until 200 AM EDT for southwestern and west central Michigan.

Heat Advisory issued June 11 at 1:49AM EDT until June 11 at 8:00PM EDT by NWS Northern Indiana

Effective: Thu June 11, 2026, 1:49 AM
Expires: Thu June 11, 2026, 5:00 PM

* WHAT...Heat index values around 100 expected. * WHERE...Portions of northern Indiana, southwest Michigan, and northwest Ohio. * WHEN...From noon EDT /11 AM CDT/ today to 8 PM EDT /7 PM CDT/ this evening. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses.

Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1.