Flash Flood and Damaging Winds in Ohio, April 20, 2000

Name: Flash Flood and Damaging Winds in Ohio, April 20, 2000
Start: 2000-04-20T14:30
End: 2000-04-20T21:15
Location: Ohio

April 20, 2000 · NWS ILN · 28 events in 22 counties and zones

27 thunderstorm wind, 1 flash flood, as filed by the National Weather Service.

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

Open the live radar over this ground

The toll

Deaths: 0
Injuries: 0
Property damage: $470,000
Crop damage: None recorded
Events: 28

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.

The radar

The Cincinnati radar (KILN), 35 km away, was scanning. The volume nearest the first event began at 19:28 UTC.

Open the radar archive at this moment

Event by event

27 thunderstorm wind, 1 flash flood. Local standard time, as filed.

Thunderstorm Wind, Warren

When: April 20, 2:30 PM EST to 2:35 PM EST
Where: Warren County, Morrow
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.400, -84.233

Trees were knocked down by high winds.

Thunderstorm Wind, Darke

When: April 20, 4:45 PM EST to 4:50 PM EST
Where: Darke County, Arcanum
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.983, -84.550

Trees and power poles downed.

Thunderstorm Wind, Preble

When: April 20, 4:50 PM EST to 4:55 PM EST
Where: Preble County, West Alexandria
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.750, -84.533

Trees downed.

Thunderstorm Wind, Miami

When: April 20, 5:09 PM EST
Where: Miami County, West Milton
Measured: 51 kt (59 mph)
Reported by: TRAINED SPOTTER
Coordinates: 39.967, -84.333

A spotter measured a 60 mph wind gust.

Thunderstorm Wind, Butler

When: April 20, 5:15 PM EST to 5:20 PM EST
Where: Butler County, Hamilton
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.400, -84.550

Numerous trees and large limbs downed.

Thunderstorm Wind, Shelby

When: April 20, 5:20 PM EST to 5:25 PM EST
Where: Shelby County, 2 mi W of Sidney
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 40.283, -84.183

Trees knocked down.

Thunderstorm Wind, Montgomery

When: April 20, 5:20 PM EST to 5:35 PM EST
Where: Montgomery County, Dayton
Measured: 61 kt (70 mph)
Property damage: $200,000
Reported by: NWS STORM SURVEY
Coordinates: 39.750, -84.183

Thunderstorms winds measured by spotters as high as 72 mph downed numerous trees, many of which fell on cars and blew on to and into homes. A construction trailer was severely damaged and some businesses received damage.

Thunderstorm Wind, Miami

When: April 20, 5:25 PM EST to 5:40 PM EST
Where: Miami County, Countywide
Measured: 50 kt (58 mph)
Property damage: $10,000
Reported by: LAW ENFORCEMENT
Coordinates: 40.367, -84.217

Numerous trees and large limbs were knocked down, mainly in the southeastern part of the county.

Thunderstorm Wind, Hamilton

When: April 20, 5:25 PM EST to 5:40 PM EST
Where: Hamilton County, Cincinnati
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.117, -84.550

Trees and power lines downed. One tree fell across a car.

Thunderstorm Wind, Clark

When: April 20, 5:25 PM EST to 5:35 PM EST
Where: Clark County, New Carlisle
Measured: 77 kt (89 mph)
Property damage: $50,000
Reported by: NWS STORM SURVEY
Coordinates: 39.933, -84.033

A thunderstorms produced very strong winds across the southwestern part of the county. A spotter measured a wind gust to 91 mph in Medway. Many trees and power lines were downed in this largely rural area.

Thunderstorm Wind, Champaign

When: April 20, 5:30 PM EST to 5:45 PM EST
Where: Champaign County, Countywide
Measured: 60 kt (69 mph)
Property damage: $75,000
Reported by: TRAINED SPOTTER
Coordinates: 40.133, -83.767

Numerous trees and power lines were knocked down countywide, but mainly in the western half of the county. Also, a roof was blown off a Dairy Queen restaurant.

Thunderstorm Wind, Greene

When: April 20, 5:31 PM EST
Where: Greene County, (Ffo)wright-Patt Afb
Measured: 51 kt (59 mph)
Property damage: $5,000
Reported by: AWOS,ASOS,MESONET,ETC
Coordinates: 39.783, -84.083

A thunderstorm produced a wind gust to 60 mph at Wright-Patterson Air Force Base. Some trees were knocked down in the vicinity of the base.

Thunderstorm Wind, Hardin

When: April 20, 5:40 PM EST to 5:50 PM EST
Where: Hardin County, Countywide
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 40.683, -83.633

Trees and power lines downed, mainly in the western part of the county.

Thunderstorm Wind, Warren

When: April 20, 5:42 PM EST to 5:50 PM EST
Where: Warren County, Maineville
Measured: 50 kt (58 mph)
Property damage: $10,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.317, -84.217

Numerous trees were downed across the county.

Thunderstorm Wind, Clark

When: April 20, 5:51 PM EST to 5:55 PM EST
Where: Clark County, Springfield
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: NEWSPAPER
Coordinates: 39.917, -83.800

Trees downed.

Thunderstorm Wind, Clermont

When: April 20, 5:55 PM EST to 6:00 PM EST
Where: Clermont County, Loveland
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.267, -84.250

Trees downed.

Thunderstorm Wind, Clinton

When: April 20, 6:15 PM EST to 6:20 PM EST
Where: Clinton County, Wilmington
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.450, -83.833

Trees were knocked down at the intersection of Highway 68 and West Walker Road.

Thunderstorm Wind, Clermont

When: April 20, 6:20 PM EST to 6:25 PM EST
Where: Clermont County, Bethel
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 38.967, -84.083

Trees and power lines knocked down.

Thunderstorm Wind, Fayette

When: April 20, 6:35 PM EST to 6:40 PM EST
Where: Fayette County, Washington Court Hou
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.533, -83.433

Trees and power lines knocked down.

Thunderstorm Wind, Franklin

When: April 20, 6:45 PM EST to 6:55 PM EST
Where: Franklin County, Countywide
Measured: 50 kt (58 mph)
Property damage: $10,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.967, -83.033

Trees down.

Thunderstorm Wind, Brown

When: April 20, 6:45 PM EST to 7:00 PM EST
Where: Brown County, Countywide
Measured: 50 kt (58 mph)
Property damage: $10,000
Reported by: TRAINED SPOTTER
Coordinates: 38.950, -83.883

Trees down across the county.

Thunderstorm Wind, Highland

When: April 20, 6:55 PM EST to 7:00 PM EST
Where: Highland County, Buford
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.067, -83.850

Trees knocked down.

Thunderstorm Wind, Highland

When: April 20, 7:10 PM EST to 7:15 PM EST
Where: Highland County, Greenfield
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.350, -83.383

Trees and power lines knocked down.

Flash Flood, Hamilton

When: April 20, 7:30 PM EST to 8:15 PM EST
Where: Hamilton County, Springdale
Reported by: LAW ENFORCEMENT
Coordinates: 39.196, -84.543 (the zone’s center; the record gives no point)

Kemper Road was flooded due to heavy rainfall.

Thunderstorm Wind, Ross

When: April 20, 7:45 PM EST to 7:50 PM EST
Where: Ross County, 1 mi S of Chillicothe
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.317, -82.983

Numerous trees downed.

Thunderstorm Wind, Hocking

When: April 20, 8:02 PM EST to 9:15 PM EST
Where: Hocking County, Countywide
Measured: 50 kt (58 mph)
Property damage: $10,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.517, -82.450

Many trees were knocked down across the county.

Thunderstorm Wind, Fairfield

When: April 20, 8:02 PM EST to 8:15 PM EST
Where: Fairfield County, Countywide
Measured: 50 kt (58 mph)
Property damage: $10,000
Reported by: LAW ENFORCEMENT
Coordinates: 39.733, -82.567

Trees downed across the county.

Thunderstorm Wind, Scioto

When: April 20, 8:10 PM EST to 8:25 PM EST
Where: Scioto County, South Webster
Measured: 50 kt (58 mph)
Property damage: $5,000
Reported by: EMERGENCY MANAGER
Coordinates: 38.817, -82.717

Trees downed.

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.
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 Ohio in 2000 Every state in 2000 This day in weather history Warnings in Ohio, April 2000

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: 5142122, 5142123, 5142124, 5142127, 5142125, 5142126, 5142206, 5142128, 5142207, 5142208, 5140800, 5140802, 5140801, 5142210, 5142209, 5140813, 5140803, 5140898, 5140804, 5140805, 5140806, 5140807, 5140808, 5140899, 5140809, 5140810, 5140811, 5140812.