Seiche in Wisconsin

8 seiche events since 1998

Every seiche event the National Weather Service has filed in Wisconsin, year by year, with the most significant episodes. A standing wave in a lake or bay, pushed by wind or pressure, that flooded the shore.

The most significant on the map

The most significant seiche episodes in Wisconsin.

Tornadoes
Tropical storms and surge
Floods
Wind
Hail
Winter weather
Heat and drought
Cold
Fire, smoke and dust
Marine and coastal
Other

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The record

Events: 8
Deaths: 0
Injuries: 0
Damage: $6,000

Every year

The most significant

Ranked by deaths, injuries, damage and size together.

Tornado and Flash Flood in Wisconsin, August 20, 20104 injured · $208,000 · EF1 · 23 eventsA line of thunderstorms developed north of a warm front that was slowly moving from south to north across Wisconsin. The line of storms moved east across northern Wisconsin during the morning, producing penny to nickel size hail in Vilas County and Oneida County.
High Wind and Seiche in Wisconsin, June 27 to 28, 1998$30,000 · 61 kt wind · 15 eventsStrong winds, which developed as a result of a strong pressure difference in the wake of a departing thunderstorm complex, produced damage across parts of central and east-central Wisconsin. Trees and power lines were knocked down in many locations.
Damaging Winds and Seiche in Wisconsin, July 23, 202261 kt wind · 21 eventsThunderstorms tracked east along a warm front through central and east-central Wisconsin during the late afternoon and early evening hours on Saturday (7/23). The strongest storms produced wind gusts of 60 to 70 mph.
Seiche in Wisconsin, July 24, 2019$6,000 · 2 eventsThunderstorms moving across the waters of Green Bay produced seiche conditions in southeast Oconto County and northern Brown County during the evening of July 24th. Gusty winds and lake levels that started out high combined to exacerbate problems caused by the seiche.

Seiche everywhere Every kind of event in Wisconsin

Sources

NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24.