Hail, Rock
- When
- September 6, 10:44 PM CST
- Where
- Rock County, Johnstown Center
- Measured
- 1 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.700, -88.830
Hail in Wisconsin, September 6, 1998
Scattered thunderstorms moving east-southeast through southcentral Wisconsin around 20 mph eventually clustered in eastern Rock and Walworth counties. They dropped some large hail and produced gusty winds to 50 mph.
Where it happened
Every event with a place to put it. 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
- None recorded
- Crop damage
- None recorded
- Events
- 2
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.
Scattered thunderstorms moving east-southeast through southcentral Wisconsin around 20 mph eventually clustered in eastern Rock and Walworth counties. They dropped some large hail and produced gusty winds to 50 mph. In southern Walworth county, 1.6 inches of rain fell in one hour, resulting in minor street flooding.
The radar
The Milwaukee radar (KMKX), 37 km away, was scanning. The volume nearest the first event began at 04:39 UTC.
Event by event
2 hail. Local standard time, as filed.
Hail, Walworth
- When
- September 6, 10:45 PM CST to 10:50 PM CST
- Where
- Walworth County, Delavan to Elkhorn
- Measured
- 0.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 42.630, -88.630
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Hail and Damaging Winds in New York, September 6 to 7, 1998
- Hail and Damaging Winds in New York, September 6 to 7, 1998
- Hail and Damaging Winds in New York, September 6 to 7, 1998
- Hail and Damaging Winds in Vermont, September 6, 1998
- Hail and Damaging Wind in New York, September 6 to 7, 1998
- Flood and Hail in North Carolina, September 6, 1998
- Tropical Storm in Texas, September 6 to 11, 1998
- Flooding and Damaging Wind in Idaho, September 6, 1998
- Flash Flooding in Puerto Rico, September 6, 1998
- Hail and Damaging Wind in Vermont, September 6, 1998
- Heat in Oklahoma, September 6, 1998
- Hail in West Virginia, September 6, 1998
More
Every storm in Wisconsin in 1998Every state in 1998This day in weather historyWarnings in Wisconsin, September 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: 5669073, 5669074.