Thunderstorm Wind, Fond du Lac
- When
- July 8, 8:30 PM CST to 8:40 PM CST
- Where
- Fond du Lac County, Peebles to St Peter
- Property damage
- $1,000
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.820, -88.370
Flood and Hail in Wisconsin, July 8 to 9, 1999
Several clusters of thunderstorms, some severe, rumbled across southcentral and southeast Wisconsin during the evening hours of the 8th into the early morning hours of the 9th. Many large trees and power lines were knocked down by the powerful thunderstorm winds.
Where it happened
Every event with a place to put it; 3 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
- $244,000
- Crop damage
- None recorded
- Events
- 12
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.
Several clusters of thunderstorms, some severe, rumbled across southcentral and southeast Wisconsin during the evening hours of the 8th into the early morning hours of the 9th. Many large trees and power lines were knocked down by the powerful thunderstorm winds. Scattered large hail was also reported. A church and a car in Fond du Lac (Fond du Lac Co.) sustained considerable wind damage. A power transformer on Highway 23 in the city of Fond du Lac took a direct lightning hit. In Sheboygan (Sheboygan Co.), several large tents were leveled in a Rotary Club event in the city park. About 2000 customers were without electrical power in the Germantown area of southern Washington County due to lightning striking power poles. In addition, lightning struck a TV antenna on a New Berlin residence and damaged the home's TV, electrical sockets, and computer. Rainfall amounts of 1.5 to 2 inches in the city of Waukesha (Waukesha Co.) resulted in urban flooding in the pre-dawn hours. Several roads were blocked by water levels reaching 1 to 2 feet in low spots.
The radar
The national radar mosaic for the moment the first event began.
Event by event
7 thunderstorm wind, 2 lightning, 2 hail, 1 flood. Local standard time, as filed.
Thunderstorm Wind, Sheboygan
- When
- July 8, 8:40 PM CST
- Where
- Sheboygan County, Beechwood to 7 mi of Beechwood
- Property damage
- $2,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 43.700, -88.120
Lightning, Fond du Lac
- When
- July 8, 8:59 PM CST
- Where
- Fond du Lac County, Fond du Lac
- Property damage
- $40,000
- Reported by
- EMERGENCY MANAGER
- Coordinates
- 43.754, -88.488 (the zone’s center; the record gives no point)
Thunderstorm Wind, Fond du Lac
- When
- July 8, 9:04 PM CST to 9:15 PM CST
- Where
- Fond du Lac County, Fond du Lac to Dundee
- Property damage
- $155,000
- Reported by
- NEWSPAPER
- Coordinates
- 43.780, -88.450
Thunderstorm Wind, Sheboygan
- When
- July 8, 9:05 PM CST
- Where
- Sheboygan County, Sheboygan
- Property damage
- $40,000
- Reported by
- NEWSPAPER
- Coordinates
- 43.750, -87.720
Hail, Sauk
- When
- July 8, 9:10 PM CST
- Where
- Sauk County, 3 mi SE of Reedsburg
- Measured
- 0.88 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 43.500, -89.950
Thunderstorm Wind, Iowa
- When
- July 8, 9:25 PM CST
- Where
- Iowa County, 2 mi N of Clyde
- Property damage
- $1,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 43.150, -90.220
Thunderstorm Wind, Dodge
- When
- July 8, 9:50 PM CST
- Where
- Dodge County, Theresa
- Property damage
- $1,000
- Reported by
- NEWSPAPER
- Coordinates
- 43.520, -88.450
Thunderstorm Wind, Washington
- When
- July 8, 10:00 PM CST
- Where
- Washington County, Germantown
- Property damage
- $2,000
- Reported by
- NEWSPAPER
- Coordinates
- 43.230, -88.100
Hail, Waukesha
- When
- July 9, 12:32 AM CST
- Where
- Waukesha County, Waukesha
- Measured
- 0.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 43.020, -88.220
Lightning, Waukesha
- When
- July 9, 1:00 AM CST
- Where
- Waukesha County, New Berlin
- Property damage
- $2,000
- Reported by
- TRAINED SPOTTER
- Coordinates
- 43.018, -88.304 (the zone’s center; the record gives no point)
Flood, Waukesha
- When
- July 9, 1:00 AM CST to 4:00 AM CST
- Where
- Waukesha County, Waukesha
- Reported by
- NEWSPAPER
- Coordinates
- 43.018, -88.304 (the zone’s center; the record gives no point)
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.
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flood in Nevada, July 8, 1999
- Heat in Missouri, July 8 to 9, 1999
- Tornado and Hail in Minnesota, July 8, 1999
- Tornado and Hail in Wisconsin, July 8, 1999
- Flooding and Damaging Winds in Wisconsin, July 8, 1999
- Damaging Winds in Michigan, July 8 to 9, 1999
- Damaging Winds in Iowa, July 8, 1999
- Damaging Wind in Iowa, July 8, 1999
- Lightning Strike in New Mexico, July 8, 1999
- Flood in California, July 8, 1999
- Hail and Damaging Winds in Minnesota, July 8, 1999
- Damaging Winds in Wisconsin, July 8, 1999
More
Every storm in Wisconsin in 1999Every state in 1999This day in weather historyWarnings in Wisconsin, July 1999
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: 5711492, 5711493, 5709984, 5711494, 5709976, 5709977, 5709978, 5709979, 5709980, 5709981, 5709982, 5709983.