Flash Flood, Ozaukee
- When
- June 18, 8:00 AM CST to 11:00 AM CST
- Where
- Ozaukee County, 3 mi W of Port Washington
- Property damage
- $200,000
- Coordinates
- 43.403, -87.891 (the zone’s center; the record gives no point)
Flash Flood in Wisconsin, June 18, 1996
Thunderstorms with heavy rains "trained" N/NW over the I-95 interchange west of Port Washington repeatedly to produce flash flooding. Water was reported to be 4 feet deep at the interchange, forcing a road closure until 1400CST.
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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- $200,000
- 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.
Thunderstorms with heavy rains "trained" N/NW over the I-95 interchange west of Port Washington repeatedly to produce flash flooding. Water was reported to be 4 feet deep at the interchange, forcing a road closure until 1400CST. Shoulder washouts were noted. Rainfall on the 18th was unofficially in the 4 to 6 inch range, on top of 4 to 5 inches that fell the previous two days.
The radar
The Milwaukee radar (KMKX), 72 km away, was scanning. The volume nearest the first event began at 13:59 UTC.
Event by event
1 flash flood. Local standard time, as filed.
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
- Flash Flood in Michigan, June 18, 1996
- Flood in Wisconsin, June 18 to 30, 1996
- Flood in Wisconsin, June 18 to 20, 1996
- Flash Flood in Wisconsin, June 18, 1996
- Tropical Storm in North Carolina, June 18 to 19, 1996
- Flood in Wisconsin, June 18, 1996
- Flash Flood in Wisconsin, June 18, 1996
- Tropical Storm in North Carolina, June 18 to 19, 1996
- Flash Flood in Pennsylvania, June 18, 1996
- Flash Flood in Maryland, June 18 to 19, 1996
- Lightning Strike in Oklahoma, June 18, 1996
- Flood in Wisconsin, June 18, 1996
More
Every storm in Wisconsin in 1996Every state in 1996This day in weather historyWarnings 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: 5566558.