Event summary for 4/19/00 and 4/20/00. See individual storm reports for additional details.
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.
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 episode as NWS DVN wrote it up.
Event summary for 4/19/00 and 4/20/00. See individual storm reports for additional details. Isolated thunderstorms developed along a warm front and produced penny-sized hail in portions of northwest Illinois during the morning of April 19th. The frontal boundary remained draped across Iowa and Illinois, and afternoon heating combined with moisture transport south of the boundary helped to de-stabilize the atmosphere, setting the stage for another round of severe weather beginning the evening of the 19th. Large hail and damaging wind were the primary threats. Hail up to golfball-sized fell over portions of northeast Iowa and northeast Missouri during the evening hours. Severe weather continued into the early morning hours of the 20th. The areas hardest hit included portions of southeast Iowa, and west central and northwest Illinois. A possible gustnado produced a swath of damage in the village of Smithshire in Warren County Illinois. The highest recorded wind speed was a 63 mph gust in McDonough County Illinois. Numerous homes and buildings suffered roof damage, and thunderstorm winds downed numerous trees and power lines. Moderate to locally heavy rain continued through much of the day on the 20th, which caused urban and small stream flooding.
The Quad Cities radar (KDVN), 151 km away, was scanning. The volume nearest the first event began at 09:02 UTC.
1 thunderstorm wind, 1 flood. Local standard time, as filed.
Thunderstorm winds produced a swath of damage 3 blocks wide and 6 blocks long. Trees were downed and the roof was blown off a building in the downtown area.
Persistent moderate to locally heavy rain produced flooding of many streets in the community.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Iowa in 2000Every state in 2000This day in weather historyWarnings in Iowa, April 2000
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: 5143009, 5143010.