Wisconsin, 1998

Damaging Winds and Lightning Strike in Wisconsin, June 20, 1998

June 20, 1998 · NWS GRB · 3 events in 1 county or zone

A thunderstorm produced winds to 60 mph, knocking down trees in Winnebago county. Lightning struck an apartment building in Oshkosh, setting the roof on fire.

Where it happened

Every event with a place to put it; 1 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

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The toll

Deaths
0
Injuries
0
Property damage
$1,000
Crop damage
None recorded
Events
3

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.

What happened

The episode as NWS GRB wrote it up.

A thunderstorm produced winds to 60 mph, knocking down trees in Winnebago county. Lightning struck an apartment building in Oshkosh, setting the roof on fire.

The radar

The national radar mosaic for the moment the first event began.

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Event by event

2 thunderstorm wind, 1 lightning. Local standard time, as filed.

Thunderstorm Wind, Winnebago

When
June 20, 8:44 PM CST
Where
Winnebago County, 2 mi S of Omro
Property damage
$1,000
Coordinates
44.000, -88.750

Lightning, Winnebago

When
June 20, 8:45 PM CST
Where
Winnebago County, Oshkosh
Coordinates
44.069, -88.645 (the zone’s center; the record gives no point)

Thunderstorm Wind, Winnebago

When
June 20, 8:50 PM CST
Where
Winnebago County, Oshkosh
Measured
52 kt (60 mph)
Coordinates
44.020, -88.550

What these are

Thunderstorm Wind
Winds from a thunderstorm of 50 knots (58 mph) or more, or lower winds that caused damage or casualties. Measured gusts are marked MG, estimated EG.
Lightning
A lightning strike that killed, injured or caused damage.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Wisconsin in 1998Every state in 1998This day in weather historyWarnings in Wisconsin, June 1998

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. Each event’s entry at NCEI: 5649753, 5649755, 5649754.