Hail, Henderson
- When
- April 8, 6:25 PM CST
- Where
- Henderson County, Biggsville
- Measured
- 0.88 in hail
- Reported by
- TRAINED SPOTTER
- Coordinates
- 40.850, -90.870
Tornadoes and Flood in Illinois, April 8, 1999
A second tornado spawned by the same storm, which produced the Hamilton tornado, touched down in extreme northeast Hancock County south of Terra Haute. The tornado tracked northeast through Henderson County and into Warren County passing 3 miles east of Raritan.
Where it happened
Every event with a place to put it; 2 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
- None recorded
- Crop damage
- None recorded
- Events
- 7
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 DVN wrote it up.
A second tornado spawned by the same storm, which produced the Hamilton tornado, touched down in extreme northeast Hancock County south of Terra Haute. The tornado tracked northeast through Henderson County and into Warren County passing 3 miles east of Raritan. The tornado weakened and lifted north of Berwick in Warren County. Damage along the path was scattered and rated F0. An aluminum sided farm shed had part of the roof and wall torn off 2 miles north of Roseville. The storm which produced the tornado was embedded within a line of severe thunderstorms which swept across southeast Iowa and west central Illinois during the early evening. Nickel to jelly bean size hail was reported in Biggsville and Gladstone as the line moved across Henderson County. A funnel cloud was also reported in Galva in Henry County along with winds gusting to 60 mph. Very heavy rain also caused water to cover portions of US highway 116 east of Roseville in Warren County.
The radar
The Quad Cities radar (KDVN), 88 km away, was scanning. The volume nearest the first event began at 00:22 UTC.
Event by event
3 tornado, 1 hail, 1 flood, 1 funnel cloud, 1 thunderstorm wind. Local standard time, as filed.
Tornado, Hancock
- When
- April 8, 6:35 PM CST to 6:37 PM CST
- Where
- Hancock County, La Harpe to 2 mi NE of La Harpe
- Rating
- F0
- Path length
- 1 mi
- Path width
- 10 yd
- Reported by
- NWS STORM SURVEY
- Coordinates
- 40.620, -90.970
Tornado, Henderson
- When
- April 8, 6:37 PM CST to 6:49 PM CST
- Where
- Henderson County, Terre Haute to 2 mi E of Raritan
- Rating
- F0
- Path length
- 4 mi
- Path width
- 10 yd
- Reported by
- NWS STORM SURVEY
- Coordinates
- 40.650, -90.950
Tornado, Warren
- When
- April 8, 6:49 PM CST to 7:05 PM CST
- Where
- Warren County, Roseville to 5 mi N of Berwick
- Rating
- F0
- Path length
- 15 mi
- Path width
- 10 yd
- Reported by
- NWS STORM SURVEY
- Coordinates
- 40.680, -90.730
Flood, Warren
- When
- April 8, 7:00 PM CST
- Where
- Warren County, 4 mi E of Roseville
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 40.849, -90.615 (the zone’s center; the record gives no point)
Funnel Cloud, Henry
- When
- April 8, 7:30 PM CST
- Where
- Henry County, Galva
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.353, -90.131 (the zone’s center; the record gives no point)
Thunderstorm Wind, Henry
- When
- April 8, 7:35 PM CST
- Where
- Henry County, Galva
- Measured
- 58 kt (67 mph)
- Reported by
- TRAINED SPOTTER
- Coordinates
- 41.170, -90.050
What these are
- Hail
- Hail three-quarters of an inch or larger, or smaller hail that caused damage, filed with the largest stone measured.
- Tornado
- A violently rotating column of air in contact with the ground and extending from a thunderstorm, filed with its path, width and Fujita or Enhanced Fujita rating from the damage survey.
- Flood
- Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
- Funnel Cloud
- A rotating column of cloud extending from a thunderstorm that did not reach the ground.
- 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.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Tornadoes and Hail in Iowa, April 8, 1999
- Tornado and Flood in Illinois, April 8, 1999
- Tornadoes in Illinois, April 8, 1999
- Tornadoes and Hail in Illinois, April 8, 1999
- Tornadoes and Hail in Missouri, April 8, 1999
- Tornado in Missouri, April 8, 1999
- Tornado in Missouri, April 8, 1999
- Hail in California, April 8, 1999
- Winter Storm in Utah, April 8 to 10, 1999
- Lightning Strike in Indiana, April 8, 1999
- High Wind in Colorado, April 8, 1999
- Tornado in Missouri, April 8, 1999
More
Every storm in Illinois in 1999Every state in 1999This day in weather historyThe tornado archive for Illinois, 1999Warnings in Illinois, April 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: 5710823, 5710820, 5710821, 5710822, 5710824, 5710825, 5710826.