The tornado outbreak of April 8, 1999

47 tornadoesIowa, Missouri, Illinois and 2 more states

47 tornadoes touched down across 5 states between 11:00 AM and 11:32 PM CDT, 5 of them rated F3 or stronger, and 2 people were killed.

Watch the day unfold

Tornado outbreak · April 8, 1999

How the day unfolded

Every tornado recorded that day, at its logged touchdown time and along its path, with the counties it crossed.

About this replay

Central time—Historical replay — logged touchdown times

Tornadoes—of 47 that day

Strongest so far—

Killed—in tornadoes so far

The day’s milestones

Tornado pathsWider and brighter with the rating; F3 and stronger glow

On the groundEach grows from its logged touchdown time

Counties crossedLit as a tornado reaches them, brighter for F3 or stronger

Source: NOAA Storm Prediction Center severe weather database (touchdown times, ratings, start and end points) and Storm Events Database (segment paths and times for the notable tornadoes that have record pages). SPC logs the touchdown time only; other paths are drawn at a typical forward speed of 35 mph. Times are Central Daylight Time.

The day in numbers

Tornadoes: 47; 89th of 12,998 tornado days since 1950
F3 or stronger: 5; 2 rated F4 or F5
Killed: 2; Along all the paths
Injured: 33; Along all the paths
Path miles: 495; All the paths end to end
First and last: 11:00 AM to 11:32 PM; Touchdowns, Central Daylight Time

Hour by hour

Tornadoes touching down in each hour, Central Daylight Time.

Every tornado

In order of touchdown. 2 have a record page, linked from the rating.

Tornadoes of April 8, 1999

11:00 AM	F1	Hamilton County NE	4.0	50	0	0
11:54 AM	F1	Merrick County NE	3.0	40	0	0
11:56 AM	F0	Nance County NE	1.0	10	0	0
12:22 PM	F0	Boone County NE	1.0	40	0	0
1:06 PM	F1	Colfax County NE	4.0	150	0	0
1:07 PM	F1	Saunders County, Dodge County NE	1.5	400	0	0
1:12 PM	F0	Saunders County NE	3.5	70	0	0
1:33 PM	F1	Story County IA	2.0	0	0	2
1:48 PM	F0	Washington County NE	0.1	30	0	0
2:08 PM	F0	Fremont County IA	0.0	40	0	0
2:18 PM	F0	Pottawattamie County IA	0.3	60	0	0
2:22 PM	F1	Page County IA	5.0	70	0	0
2:30 PM	F1	Andrew County, Nodaway County MO	13.5	0	0	2
2:36 PM	F1	Page County IA	8.0	440	0	1
2:38 PM	F1	Montgomery County IA	8.0	60	0	0
2:48 PM	F1	Page County IA	9.0	100	0	0
2:54 PM	F0	Montgomery County IA	5.0	80	0	0
2:54 PM	F4	Taylor County, Adams County and 2 more IA	49.0	1,000	0	3
3:48 PM	F4	Union County, Madison County and 1 more IA	56.0	1,250	0	1
4:20 PM	F2	Carroll County, Chariton County and 1 more MO	53.5	280	0	2
4:20 PM	F1	Livingston County MO	7.0	0	0	0
5:00 PM	F0	Polk County IA	0.2	30	0	0
5:13 PM	F2	Warren County, Polk County IA	32.0	0	0	0
5:18 PM	F3	Lucas County, Warren County and 2 more IA	39.0	0	0	5
5:25 PM	F2	Macon County, Knox County MO	17.0	270	0	0
5:30 PM	F1	Cooper County MO	4.0	0	0	0
5:55 PM	F2	Boone County MO	4.0	120	0	5
6:05 PM	F2	Lewis County MO	16.0	150	0	2
6:05 PM	F2	Boone County MO	10.0	120	0	0
6:15 PM	F3	Davis County, Wapello County IA	16.0	300	0	0
6:25 PM	F0	Jefferson County IA	0.1	10	0	0
6:25 PM	F0	Jefferson County IA	0.1	10	0	0
6:30 PM	F1	Audrain County MO	10.0	100	0	0
6:30 PM	F1	Cole County MO	12.0	200	0	0
6:35 PM	F3	Hancock County IL	7.5	200	0	0
6:36 PM	F0	Barnwell County SC	0.5	50	0	0
6:47 PM	F1	Allendale County SC	9.0	50	0	0
7:00 PM	F1	Osage County MO	8.0	200	0	0
7:15 PM	F0	Webster County MO	0.1	0	0	0
7:34 PM	F2	Pike County, Pike County and 1 more MO, IL	27.3	120	0	0
7:35 PM	F0	Hancock County, Henderson County and 1 more IL	20.0	10	0	0
8:10 PM	F1	Scott County IL	4.0	120	0	0
8:27 PM	F1	Morgan County IL	9.5	200	0	0
8:45 PM	F1	Morgan County, Cass County and 2 more IL	9.3	333	1	6
10:18 PM	F1	Madison County IL	1.0	0	0	1
10:35 PM	F1	Piatt County IL	3.5	100	1	3
11:32 PM	F0	Cumberland County, Coles County IL	0.3	0	0	0

By state

Tornadoes by state, April 8, 1999

Iowa	16	4	0
Missouri	13	0	0
Illinois	8	1	2
Nebraska	8	0	0
South Carolina	2	0	0

Tornadoes in 1999 · On this date in other years · The biggest outbreak days

Storm Prediction Center severe weather database, 1950 to 2025. A day is SPC’s calendar date in Central Standard Time; an outbreak day here has 40 or more tornadoes, or 6 or more rated F3/EF3 or stronger.