Flash Flood in Wisconsin, June 17, 1996

Name: Flash Flood in Wisconsin, June 17, 1996
Start: 1996-06-17T03:30
End: 1996-06-17T04:45
Location: Wisconsin

June 17, 1996 · NWS MKX · 1 event in 1 county or zone

33 inches resulted in flash flooding in and around Portage. A number of roads had shoulder washouts, and there was the usual basement flooding as water levels quickly rose to a couple feet high on some roads.

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.

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 toll

Deaths: 0
Injuries: 0
Property damage: $150,000
Crop damage: None recorded
Events: 1

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 MKX wrote it up.

Heavy rains of 3.33 inches resulted in flash flooding in and around Portage. A number of roads had shoulder washouts, and there was the usual basement flooding as water levels quickly rose to a couple feet high on some roads.

The radar

The Milwaukee radar (KMKX), 84 km away, was scanning. The volume nearest the first event began at 09:27 UTC.

Open the radar archive at this moment

Event by event

1 flash flood. Local standard time, as filed.

Flash Flood, Columbia

When: June 17, 3:30 AM CST to 4:45 AM CST
Where: Columbia County, Portage
Property damage: $150,000
Coordinates: 43.467, -89.334 (the zone’s center; the record gives no point)

What these are

Flash Flood: Flooding that begins within six hours of the rain that causes it, or of a dam or levee failure or ice jam release, often with deadly speed.

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

The same day elsewhere

Every storm in Wisconsin in 1996 Every state in 1996 This day in weather history Warnings in Wisconsin, June 1996

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: 5566530.