On the map: every storm report logged this day.
On the map
Storm reports for April 21, 1967
On April 21, 1967, 14 hail, 19 damaging-wind and 46 tornado reports were logged across 8 states.
FreeNo accountNo phone numberWe don’t keep the address
· As you type, the text is sent to Google to suggest addresses.IndependentNot affiliated with NOAA or the National Weather Service. Source: NOAA Storm Prediction Center storm reports. Data through November 6, 2026. Methodology
← Apr 20, 1967 All 1967 storm days · April 1967 Apr 22, 1967 →
On April 21, 1967, 14 hail, 19 damaging-wind and 46 tornado reports were logged across 8 states. The largest hail reported was 2.50″ (tennis ball size) in Lee County, IA. Tornadoes killed 58.
Storm day runs 7 a.m. to 7 a.m. Eastern (12:00–12:00 UTC), the convention the Storm Prediction Center uses. Radar hail estimates start October 2019.
Storm reports by state
| State | Hail | Wind | Tornado | Largest hail |
|---|---|---|---|---|
| IL | 4 | 7 | 18 | 1.75″ |
| MO | 4 | 2 | 12 | 2.00″ |
| MI | 0 | 6 | 10 | – |
| IA | 4 | 1 | 2 | 2.50″ |
| IN | 0 | 2 | 3 | – |
| TN | 1 | 1 | 0 | 1.00″ |
| KY | 1 | 0 | 0 | 1.75″ |
| CA | 0 | 0 | 1 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Fort Madison, IA | 9,983 | 2.50″ |
| Rochester, IL | 4,044 | 1.75″ |
| Knob Noster, MO | 2,932 | 1.75″ |
| Rockford, IL | 147,486 | 1.00″ |
| Moline, IL | 42,442 | 1.00″ |
| Bettendorf, IA | 40,281 | 1.00″ |
| Rock Island, IL | 36,434 | 1.00″ |
| Silvis, IL | 8,003 | 1.00″ |
Hail reports (14)
| Time (UTC) | Size | Location |
|---|---|---|
| 14:30 | 2.50″ | Lee County, IA |
| 18:45 | 2.00″ | Ray County, MO |
| 19:20 | 1.75″ | Sangamon County, IL |
| 20:15 | 1.75″ | Johnson County, MO |
| 21:43 | 1.75″ | Johnson County, MO |
| 23:11 | 1.75″ | Jennings County, KY |
| 19:10 | 1.50″ | Appanoose County, IA |
| 21:24 | 1.25″ | Lee County, IA |
| 16:30 | 1.00″ | Nodaway County, MO |
| 20:54 | 1.00″ | Henry County, IL |
| 21:15 | 1.00″ | Hickman County, TN |
| 21:23 | 1.00″ | Rock Island County, IL |
| 21:30 | 1.00″ | Winnebago County, IL |
| 14:08 | 0.75″ | Lee County, IA |
Damage, injuries and deaths
National Weather Service offices recorded about $86 million in property damage, 1,113 injuries and 58 deaths from hail, thunderstorm wind and tornadoes across the US on this storm day (85 events in 8 states). Before 1996 the database holds only tornado, hail and wind events, and damage was often entered as a range, so treat these figures as rough. Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Cook County, IL | 2 | 500 | 33 | $25 million |
| Boone County, IL | 1 | 410 | 24 | $250,000 |
| Lake County, IL | 1 | 97 | 1 | $2.5 million |
| McHenry County, IL | 2 | 43 | 0 | $27.5 million |
| Kent County, MI | 2 | 32 | 0 | $25 million |
| Clinton County, MI | 1 | 8 | 0 | $2.5 million |
| Grundy County, MO | 2 | 7 | 0 | $50,000 |
| Ionia County, MI | 1 | 6 | 0 | $250,000 |
| Allegan County, MI | 1 | 4 | 0 | $250,000 |
| Linn County, MO | 1 | 2 | 0 | $250,000 |
| Jefferson County, IN | 1 | 1 | 0 | $25,000 |
| Jennings County, IN | 1 | 1 | 0 | $25,000 |
Source: NOAA National Centers for Environmental Information (NCEI), Storm Events Database, as entered by National Weather Service offices; data through July 31, 2026. Damage is in dollars of the year, not adjusted for inflation.
NWS Tornado Damage Surveys for April 21, 1967
National Weather Service survey teams mapped 2 tornado paths from this storm day (1 EF4, 1 EF2), 29 miles in all. The map above draws each surveyed path as the NWS mapped it, colored by the EF rating of each stretch, in place of the straight start-to-end line.
| Rating | Peak wind | Path length | Max width | Deaths / injuries | On the ground | Surveyed by |
|---|---|---|---|---|---|---|
| EF4 | – | 26.3 mi | 800 yd | 24 / 500 | 21:45–22:20 UTC | NWS Chicago |
| EF2 | – | 2.7 mi | 70 yd | 0 / 4 | 23:00–23:05 UTC | NWS Chicago |
Source: NOAA National Weather Service Damage Assessment Toolkit (DAT): the tornado paths and EF-rating zones NWS survey teams mapped after each storm. Survey data are preliminary and can be revised; NOAA's official record is Storm Data (NCEI). Paths are simplified to about 30 m. Times are when the tornado was on the ground, in UTC.
Guides: What radar-estimated hail (MESH) is and isn't · Storm reports: preliminary vs final
Hail check for any US address
Every day since October 2019 that radar estimated hail near the address, free.
Guide: How to check if it hailed at your address · Free hail alerts by email · As you type, the text is sent to Google to suggest addresses.