Hail, Ray
- When
- April 20, 8:38 PM CST
- Where
- Ray County, Knoxville
- Measured
- 0.88 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.450, -94.020
Flood and Hail in Missouri, April 20 to 21, 1999
Clusters of thunderstorms developed along a slow-moving front and moved eastward across west-central Missouri on the evening of April 20. Many of the affected areas were hit by two waves of storms, which produced large hail and heavy rainfall.
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
- $10,000
- 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 EAX wrote it up.
Clusters of thunderstorms developed along a slow-moving front and moved eastward across west-central Missouri on the evening of April 20. Many of the affected areas were hit by two waves of storms, which produced large hail and heavy rainfall. Commissioners reported an estimated 2 to 3 inches of rain fell in northern Saline County.
The radar
The Pleasant Hill radar (KEAX), 74 km away, was scanning. The volume nearest the first event began at 02:40 UTC.
Event by event
11 hail, 1 flood. Local standard time, as filed.
Hail, Carroll
- When
- April 20, 8:49 PM CST
- Where
- Carroll County, 6 mi W of Carrollton
- Measured
- 1.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.370, -93.620
Hail, Ray
- When
- April 20, 9:05 PM CST to 9:20 PM CST
- Where
- Ray County, Knoxville to Millville
- Measured
- 0.88 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.450, -94.020
Hail, Howard
- When
- April 20, 9:10 PM CST
- Where
- Howard County, Glasgow
- Measured
- 0.88 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.230, -92.850
Hail, Carroll
- When
- April 20, 9:37 PM CST
- Where
- Carroll County, 1 mi W of Norborne
- Measured
- 1 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.300, -93.700
Hail, Lafayette
- When
- April 20, 9:48 PM CST
- Where
- Lafayette County, Waverly
- Measured
- 1 in hail
- Reported by
- NWS EMPLOYEE(OFF DUTY)
- Coordinates
- 39.220, -93.530
Hail, Saline
- When
- April 20, 10:03 PM CST
- Where
- Saline County, Slater
- Measured
- 1.75 in hail
- Reported by
- BROADCAST MEDIA
- Coordinates
- 39.230, -93.070
Hail, Saline
- When
- April 20, 10:35 PM CST
- Where
- Saline County, Malta Bend
- Measured
- 1.25 in hail
- Reported by
- BROADCAST MEDIA
- Coordinates
- 39.200, -93.370
Flood, Saline
- When
- April 20, 11:00 PM CST
- Where
- Saline County, New Frankfort
- Property damage
- $10,000
- Reported by
- GOVT OFFICIAL
- Coordinates
- 39.137, -93.202 (the zone’s center; the record gives no point)
A county commissioner reported that a 10-foot diameter galvanized drainage tube was washed out from under a county road by floodwaters, and a family that lived on the road was stranded.
Hail, Chariton
- When
- April 20, 11:30 PM CST
- Where
- Chariton County, Salisbury
- Measured
- 1 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.420, -92.820
Hail, Carroll
- When
- April 21, 12:00 AM CST
- Where
- Carroll County, Hale
- Measured
- 1.75 in hail
- Reported by
- GENERAL PUBLIC
- Coordinates
- 39.600, -93.350
Hail, Randolph
- When
- April 21, 1:15 AM CST
- Where
- Randolph County, 1 mi W of Moberly
- Measured
- 0.75 in hail
- Reported by
- LAW ENFORCEMENT
- Coordinates
- 39.420, -92.450
What these are
- 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
- Hail in Georgia, April 20, 1999
- Flooding in Illinois, April 20 to 30, 1999
- Hail in Illinois, April 20, 1999
- Hail in Alabama, April 20, 1999
- Wildfire in Florida, April 20, 1999
- Hail in Missouri, April 20, 1999
- Hail in Tennessee, April 20, 1999
- Hail in Alabama, April 20, 1999
- Hail in Alabama, April 20, 1999
- Dust Devil in Florida, April 20, 1999
- Dust Devil in Florida, April 20, 1999
- Dust Devil in Oklahoma, April 20, 1999
More
Every storm in Missouri in 1999Every state in 1999This day in weather historyWarnings in Missouri, 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: 5692862, 5691664, 5691666, 5691665, 5691671, 5691667, 5691668, 5691670, 5692860, 5692861, 5692859, 5691669.