Illinois, 1999

Tornadoes in Illinois, April 5, 1999

April 5, 1999 · NWS DVN · 3 events in 3 counties and zones

The tornado first touched down along Highway 9 southwest of Good Hope snapping several trees. From there the tornado moved northeast across Town Fork Creek damaging several trees in a densely wooded area and snapping two large trees along a county road.

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.

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The toll

Deaths
0
Injuries
0
Property damage
$9,000
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 DVN wrote it up.

The tornado first touched down along Highway 9 southwest of Good Hope snapping several trees. From there the tornado moved northeast across Town Fork Creek damaging several trees in a densely wooded area and snapping two large trees along a county road. Damage along this path was rated F0.As the tornado continued northeast it moved through plowed farmland and approached a homestead alongnorth-south county road west of Good Hope. The house sustained no structural damage, but several outbuildings suffered substantial damage. An older concrete block hog house was destroyed while the roof and sides of a new machine shed were torn off. A grain bin was blown about 500 yards from the home site into a neighboring field. Damage along this path was rated F2.For the next several miles the tornado tracked through plowed farmland snapping a few trees and blowing over several fences. The tornado then approached US Highway 67 just south of the McDonough-Warren County line.The tornado snapped two very large oak trees at a homestead with one landing on the house. It continued on a northeast track snapping several trees and damaging a roof on a homestead just south of the county line.Damage along this path was rated F1. The tornado then crossed from McDonough county into Warren county just east of highway 67. As the tornado continued northeast it hit a group of farm buildings north of the county line. Three of the buildings sustained major damage. A corn crib was blown on it's side while the roof of a barn and shed were destroyed. Damage along this path was rated F1.The tornado tracked into the south side of Swan Creek destroying a grain elevator. Just northeast of the elevator the walls of a concrete block machine shop were blown in and the building was completely destroyed.As is continued northeast it toppled several trees and antennae. Other damage in Swan Creek included two porches torn off homesteads and two roofs lifted, but not pulled off homesteads. Damage along this path was rated F2.The tornado continued northeast and lifted just north of town.

The radar

The Quad Cities radar (KDVN), 143 km away, was scanning. The volume nearest the first event began at 00:32 UTC.

Open the radar archive at this moment

Event by event

2 tornado, 1 funnel cloud. Local standard time, as filed.

Funnel Cloud, Hancock

When
April 5, 6:20 PM CST
Where
Hancock County, Basco
Reported by
AMATEUR RADIO
Coordinates
40.404, -91.165 (the zone’s center; the record gives no point)

Tornado, McDonough

When
April 5, 6:30 PM CST to 6:39 PM CST
Where
McDonough County, Good Hope to 2 mi N of Good Hope
Rating
F2
Path length
6.4 mi
Path width
100 yd
Property damage
$6,000
Reported by
NWS STORM SURVEY
Coordinates
40.530, -90.720

Tornado, Warren

When
April 5, 6:39 PM CST to 6:45 PM CST
Where
Warren County, Swan Creek to 3 mi N of Swan Creek
Rating
F2
Path length
3 mi
Path width
100 yd
Property damage
$3,000
Reported by
NWS STORM SURVEY
Coordinates
40.630, -90.680

What these are

Funnel Cloud
A rotating column of cloud extending from a thunderstorm that did not reach the ground.
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.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

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: 5710498, 5710496, 5710497.