Flash Flood and Flooding in Missouri, June 23, 1999

Name: Flash Flood and Flooding in Missouri, June 23, 1999
Start: 1999-06-23T11:29
End: 1999-06-23T15:00
Location: Missouri

June 23, 1999 · NWS EAX · 3 events in 3 counties and zones

Thunderstorms developed explosively over the Kansas City metro area during the late morning hours. Storms continued to back-build and dump heavy rain on the area into early afternoon.

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

Open the live radar over this ground

The toll

Deaths: 1
Injuries: 0
Property damage: $150,000
Crop damage: None recorded
Events: 3

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.

Thunderstorms developed explosively over the Kansas City metro area during the late morning hours. Storms continued to back-build and dump heavy rain on the area into early afternoon. Kansas City International received 1.85 inches of rain between 10 am and 1 pm, and a total of 2.04 inches for the day. Gladstone reported 3.76 inches of rain for the day, and 2.19 inches of rainfall was reported in Blue Springs. Many roads in and around Kansas City had to be closed for several hours due to high water.

The radar

The Pleasant Hill radar (KEAX), 57 km away, was scanning. The volume nearest the first event began at 17:29 UTC.

Open the radar archive at this moment

Event by event

2 flood, 1 flash flood. Local standard time, as filed.

Flood, Clay

When: June 23, 11:29 AM CST to 3:00 PM CST
Where: Clay County, Countywide
Property damage: $50,000
Reported by: EMERGENCY MANAGER
Coordinates: 39.311, -94.421 (the zone’s center; the record gives no point)

Flood, Platte

When: June 23, 11:29 AM CST to 3:00 PM CST
Where: Platte County, Countywide
Property damage: $50,000
Reported by: EMERGENCY MANAGER
Coordinates: 39.381, -94.774 (the zone’s center; the record gives no point)

Flash Flood, Jackson

When: June 23, 12:15 PM CST to 3:00 PM CST
Where: Jackson County, Countywide
Deaths: 1 direct, 0 indirect
Property damage: $50,000
Reported by: EMERGENCY MANAGER
Coordinates: 39.009, -94.346 (the zone’s center; the record gives no point)

A 7-year old boy was killed after being swept away while playing near a rain-swollen creek in Blue Springs.

The people who died

As the offices recorded each death: direct deaths were caused by the weather itself, indirect ones by something it set in motion.

Event	Date	Age	Sex	Where	Kind
Flash Flood, Jackson	1999-06-23	7	Male	In Water	Direct

What these are

Flood: Flooding that develops more slowly than a flash flood: rivers leaving their banks, or water standing over land for an extended time.
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

Every storm in Missouri in 1999 Every state in 1999 This day in weather history Warnings in Missouri, June 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: 5706399, 5706400, 5706398.