Brown County tornado history

12 tornadoes touched Brown County, Illinois between 1950 and 2025 — about 0.2 a year. The strongest was rated F2 (May 10, 2003).

12tornadoes since 1950
F2strongest rating
0killed · 22 injured
30.8 milongest path · 2003
(E)F0(E)F1(E)F2(E)F3(E)F4(E)F5· dots = start point only

By rating

(E)F01
(E)F16
(E)F25
(E)F30
(E)F40
(E)F50

By month

JFMAMJJASOND

Peak month: April.

By decade

’50’60’70’80’90’00’10’20

Strongest tornadoes

DateRatingPathWidthInjuredKilled
May 10, 2003F230.8 mi300 yd00
Apr 23, 1955F214.8 mi10 yd00
Apr 27, 1956F24.9 mi900 yd00
Mar 26, 1959F23 mi200 yd00
Oct 14, 1966F21 mi100 yd200
Jun 23, 1960F122.6 mi10 yd00
Sep 26, 1959F118.8 mi10 yd00
Dec 3, 1955F112.5 mi100 yd00
Feb 28, 2017EF10.7 mi50 yd10
Aug 12, 1999F10.5 mi—00
Oct 13, 2023EF10.4 mi25 yd10
Jun 2, 2009EF03 mi50 yd00

Most recent tornadoes

DateRatingPathWidthInjuredKilled
Oct 13, 2023EF10.4 mi25 yd10
Feb 28, 2017EF10.7 mi50 yd10
Jun 2, 2009EF03 mi50 yd00
May 10, 2003F230.8 mi300 yd00
Aug 12, 1999F10.5 mi—00
Oct 14, 1966F21 mi100 yd200
Jun 23, 1960F122.6 mi10 yd00
Sep 26, 1959F118.8 mi10 yd00
Mar 26, 1959F23 mi200 yd00
Apr 27, 1956F24.9 mi900 yd00
Dec 3, 1955F112.5 mi100 yd00
Apr 23, 1955F214.8 mi10 yd00

Nearby counties

Schuyler County, IL24Adams County, IL36Pike County, IL35Scott County, IL17Cass County, IL20Morgan County, IL43McDonough County, IL44Hancock County, IL29

Questions

How many tornadoes has Brown County, Illinois had?

12 tornadoes touched Brown County, Illinois between 1950 and 2025 in the NOAA Storm Prediction Center database — about 0.2 per year.

What was the strongest tornado in Brown County?

The strongest rating recorded was F2 on May 10, 2003, with a 30.8-mile path.

When is tornado season in Brown County?

Most of its tornadoes happened in April (2 of 12). Tornadoes can occur in any month, so keep alerts on year-round.

Right now: live tornado warnings map · alerts for your location. Dates link to that day’s full storm reports where available (2004 onward).