Illinois

Storm History: Alexander County, Illinois

878 episodes, 929 events since 1957

Every storm the National Weather Service has filed in Alexander County, Illinois: floods, hail, damaging wind, tornadoes, winter storms, heat and the rest, with the most serious on record. Events filed by forecast zone count for every county the zone covers.

The record

Events
929
Deaths
0
Injuries
14
Damage
$56 million
Episodes
878

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.

Open the live radar over Alexander County

Every year

From 1996 the record holds 48 kinds of event with each office’s narrative; before that, tornadoes, hail and thunderstorm wind only, and before 1955 tornadoes alone.

By kind of event

Counted under the kind that heads each episode.

Kind of eventEventsDeathsInjuriesDamage
Flood21700$24 million
Dense Fog12200
Strong Wind8400$83,000
Heat5800
Tornado54012$1.7 million
Hail5200$116,000
Thunderstorm Wind5001$1.0 million
Frost/Freeze4900$3.0 million
Winter Weather4301
Drought3700$3.5 million
Winter Storm3500$11 million
Excessive Heat3300
Flash Flood3200$3.5 million
Heavy Snow1800$10,000
Cold/Wind Chill1300
High Wind1000$8.6 million
Ice Storm600$40,000
Heavy Rain500$1,000
Extreme Cold/Wind Chill400
Freezing Fog400
Funnel Cloud100
Lightning100$10,000
Dust Storm100$1,000

The deadliest

None recorded.

The costliest

Damage within this county, in the dollars of its year.

The largest hail

The largest stone in each episode, which may have fallen in a neighboring county of the same episode.

The strongest tornadoes

Every tornado in Alexander County, with its track

Every episode, newest first

Earlier years, state by state:

More

Tornadoes in Alexander CountyEvery warning in Alexander County since 1986Every county in Illinois

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.