Michigan

Storm History: Keweenaw County, Michigan

369 episodes, 408 events since 1955

Every storm the National Weather Service has filed in Keweenaw County, Michigan: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
408
Deaths
0
Injuries
0
Damage
$1.8 million
Episodes
369

Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.

Open the live radar over Keweenaw County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Winter Storm9800$106,000
Blizzard6400
Winter Weather4900
Lake-Effect Snow3800
High Wind3600$291,000
Heavy Snow3300
Thunderstorm Wind1200$15,000
Hail1100$53,000
Flash Flood800$9,000
Cold/Wind Chill800
Extreme Cold/Wind Chill800
Flood700$1.1 million
Ice Storm600$110,000
Dense Fog600
Tornado500$4,000
Frost/Freeze500
Strong Wind300$36,000
Lakeshore Flood300$12,000
Heat200
Heavy Rain200
Wildfire200$10,000
Seiche100
Excessive Heat100

The deadliest

None recorded.

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Keweenaw County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Keweenaw CountyEvery warning in Keweenaw County since 1986Every county in Michigan

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.