On the map: every storm report logged this day.
On the map
Storm reports for March 20, 2011
On March 20, 2011, 20 hail, 1 damaging-wind and 0 tornado reports were logged across 4 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
← Mar 19, 2011 All 2011 storm days · March 2011 Mar 21, 2011 →
On March 20, 2011, 20 hail, 1 damaging-wind and 0 tornado reports were logged across 4 states. The largest hail reported was 1.00″ (quarter size) in Stephenson County, IL.
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 | 18 | 0 | 0 | 1.00″ |
| WI | 1 | 0 | 0 | 1.00″ |
| IA | 1 | 0 | 0 | 0.75″ |
| OH | 0 | 1 | 0 | – |
Cities with hail reported within 5 miles
| City | Population | Largest report |
|---|---|---|
| Rockford, IL | 147,486 | 1.00″ |
| Wheaton, IL | 53,741 | 1.00″ |
| Downers Grove, IL | 50,552 | 1.00″ |
| Lombard, IL | 44,490 | 1.00″ |
| Crystal Lake, IL | 41,513 | 1.00″ |
| Glendale Heights, IL | 32,866 | 1.00″ |
| Algonquin, IL | 30,539 | 1.00″ |
| Glen Ellyn, IL | 28,872 | 1.00″ |
| Lake in the Hills, IL | 28,706 | 1.00″ |
| Huntley, IL | 28,495 | 1.00″ |
| Lisle, IL | 23,548 | 1.00″ |
| Villa Park, IL | 22,020 | 1.00″ |
| Cary, IL | 18,031 | 1.00″ |
| Waupun, WI | 11,131 | 1.00″ |
| Winfield, IL | 10,199 | 1.00″ |
| Lakewood, IL | 4,287 | 1.00″ |
| Oakbrook Terrace, IL | 2,729 | 1.00″ |
| Buffalo Grove, IL | 43,072 | 0.88″ |
| Mundelein, IL | 32,641 | 0.88″ |
| McHenry, IL | 28,825 | 0.88″ |
| Vernon Hills, IL | 27,002 | 0.88″ |
| Libertyville, IL | 20,643 | 0.88″ |
| Wauconda, IL | 14,055 | 0.88″ |
| Harvard, IL | 9,408 | 0.88″ |
| Long Grove, IL | 8,393 | 0.88″ |
Hail reports (20)
| Time (UTC) | Size | Location |
|---|---|---|
| 19:05 | 1.00″ | Stephenson County, IL |
| 19:50 | 1.00″ | Winnebago County, IL |
| 20:20 | 1.00″ | McHenry County, IL |
| 20:26 | 1.00″ | McHenry County, IL |
| 21:09 | 1.00″ | McHenry County, IL |
| 00:48 | 1.00″ | Dodge County, WI |
| 00:51 | 1.00″ | DuPage County, IL |
| 19:47 | 0.88″ | Winnebago County, IL |
| 21:05 | 0.88″ | Lake County, IL |
| 21:09 | 0.88″ | McHenry County, IL |
| 23:00 | 0.88″ | McHenry County, IL |
| 15:52 | 0.75″ | Benton County, IA |
| 18:03 | 0.75″ | Stephenson County, IL |
| 19:05 | 0.75″ | Stephenson County, IL |
| 19:32 | 0.75″ | Kane County, IL |
| 19:47 | 0.75″ | Winnebago County, IL |
| 19:54 | 0.75″ | McHenry County, IL |
| 19:54 | 0.75″ | McHenry County, IL |
| 20:26 | 0.75″ | McHenry County, IL |
| 23:35 | 0.75″ | Lake County, IL |
Damage, injuries and deaths
National Weather Service offices recorded about $5,000 in property damage from hail, thunderstorm wind and tornadoes across the US on this storm day (21 events in 4 states). Injuries and deaths are those the events caused directly.
| County | Events | Injuries | Deaths | Property damage |
|---|---|---|---|---|
| Muskingum County, OH | 1 | 0 | 0 | $5,000 |
What the National Weather Service wrote
- Muskingum County, OH (near East Fultonham) · Thunderstorm wind 58 mph · $5,000
“The public reports twigs and small branches broken.” - Winnebago County, IL (near Rockford) · Hail 1.00″
“Quarter size hail was reported on the south side of Rockford.” - McHenry County, IL (near Crystal Lake) · Hail 1.00″
“Nickel to quarter size hail fell for about five minutes.” - McHenry County, IL (near Huntley) · Hail 1.00″
“Nickel to quarter size hail was reported near Route 47 and Reed Road.” - DuPage County, IL (near Butterfield West) · Hail 1.00″
“Quarter size hail was reported near Roosevelt Road and Park Boulevard.” - Stephenson County, IL (near Florence) · Hail 1.00″
“A trained spotter about 2 miles southeast of Florence reported nickel to quarter size hail right on the Stephenson/Ogle county line.”
Event narratives from NWS Storm Data, shortened. Up to six per day, chosen by deaths, injuries, damage and size.
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.
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.