Severe thunderstorms caused strong gusty winds and large hail over portions of western Lake Superior on the afternoon of the 25th.
Every event with a place to put it. Tap one for its entry below.
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.
The episode as NWS MQT wrote it up.
Severe thunderstorms caused strong gusty winds and large hail over portions of western Lake Superior on the afternoon of the 25th.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Marquette, MI wrote its last area forecast discussion before the first event at May 25, 3:50 PM EST, 4 minutes earlier.
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</html>SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE MARQUETTE MI 240 PM EDT TUE MAY 25 2010 MIZ002-251915- ONTONAGON- 240 PM EDT TUE MAY 25 2010 ...SIGNIFICANT WEATHER ALERT FOR ONTONAGON COUNTY UNTIL 315 PM EDT... AT 238 PM EDT...NATIONAL WEATHER SERVICE DOPPLER RADAR WAS TRACKING STRONG THUNDERSTORMS ALONG A LINE EXTENDING FROM 15 MILES SOUTHWEST OF REDRIDGE TO 7 MILES NORTHEAST OF ONTONAGON TO 9 MILES EAST OF BERGLAND. THESE STORMS WERE MOVING NORTHWEST AT 20 MPH. PEA SIZE HAIL...WINDS UP TO 40 MPH...AND HEAVY DOWNPOURS ARE EXPECTED WITH THESE STORMS. * LOCATIONS IN OR NEAR THE PATH OF THESE STORMS INCLUDE... NORWICH... ONTONAGON... SILVER CITY... STAY TUNED TO NOAA WEATHER RADIO...COMMERCIAL RADIO...OR YOUR LOCAL TELEVISION STATIONS FOR LATER STATEMENTS AND POSSIBLE WARNINGS CONCERNING THIS WEATHER SITUATION. SRF
The Marquette radar (KMQT), 158 km away, was scanning. The volume nearest the first event began at 20:52 UTC.
6 marine thunderstorm wind, 2 marine hail. Local standard time, as filed.
Strong thunderstorm winds removed small branches from trees.
The Ontonagon GLOS measured a wind gust at 37 knots.
Ontonagon Sheriff's office reported branches and small trees down in the Ontonagon area.
Thunderstorm winds removed small branches from trees in Ontonagon.
A spotter in Ontonagon estimated 60 mph winds and also reported dime-sized hail from a thunderstorm.
A spotter estimated 60 mph winds and reported dime-sized hail from a thunderstorm.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Lake Superior in 2010Every state in 2010This day in weather history
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 2026-10-01. Each event’s entry at NCEI: 234688, 234686, 234689, 234690, 234707, 234714, 234696, 234728.