Hail in Chicago on Saturday, July 23, 2022
The Storm Prediction Center logged 12 hail reports in Chicago on Saturday, July 23, 2022, between 12:28 am and 10:22 am CDT, in 3 of the metro's 7 counties. The largest was 1.75 inches at Lakemoor (McHenry County) at 1:14 am. NOAA radar flagged 4,865 hail signatures inside the metro that day: 1,841 rated a 100% chance of hail and 1,657 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 11 places in Lake, McHenry and Will counties, named as the National Weather Service described them.
- Round Lake 2 reports, up to 1.00 in
- Grayslake 1 report, up to 1.50 in
- Island Lake 1 report, up to 1.00 in
- Lake Villa 1 report, up to 1.00 in
- Lakemoor 1 report, up to 1.75 in
- McHenry 1 report, up to 1.00 in
- Mundelein 1 report, up to 1.00 in
- Naperville 1 report, up to 1.00 in
- Park City 1 report, up to 1.00 in
- Plainfield 1 report, up to 1.00 in
- Round Lake Beach 1 report, up to 1.00 in
Every hail report logged that day
Times are Central Daylight Time. Sizes are in inches, as reported. The comment is the National Weather Service's text as published in the Storm Prediction Center's daily log.
| Time | Size | Place | County | NWS comment |
|---|---|---|---|---|
| 12:28 am | 1.00 | Lake Villa | Lake | MULTIPLE REPORTS OF NICKEL TO QUARTER SIZE HAIL IN LAKE VILLA. TIME ESTIMATED FROM RADAR. (LOT) |
| 12:59 am | 1.00 | Island Lake | Lake | TIME ESTIMATED FROM RADAR. (LOT) |
| 1:00 am | 1.00 | McHenry | McHenry | MULTIPLE REPORTS OF NICKEL TO QUARTER SIZE HAIL IN MCHENRY. (LOT) |
| 1:14 am | 1.75 | Lakemoor | McHenry | DELAYED REPORT... HAIL BROKE EXTERIOR LIGHTS. TIME ESTIMATED FROM RADAR. (LOT) |
| 1:20 am | 1.00 | Mundelein | Lake | MULTIPLE REPORTS OF PENNY TO QUARTER SIZE HAIL IN MUNDELEIN. (LOT) |
| 1:21 am | 1.00 | Round Lake | Lake | PHOTO SHARED ON SOCIAL MEDIA SHOWING QUARTER SIZE HAIL IN ROUND LAKE. TIME ESTIMATED FROM RADAR. (LOT) |
| 1:22 am | 1.00 | Round Lake Beach | Lake | PHOTO SHARED ON SOCIAL MEDIA SHOWING QUARTER SIZE HAIL IN ROUND LAKE BEACH. TIME ESTIMATED FROM RADAR. (LOT) |
| 1:23 am | 1.50 | Grayslake | Lake | PHOTO SHARED ON SOCIAL MEDIA SHOWING HAIL APPROXIMATELY 1.5 INCHES IN DIAMETER IN GRAYSLAKE. TIME ESTIMATED FROM RADAR. (LOT) |
| 1:45 am | 1.00 | Park City | Lake | PHOTO RECEIVED VIA TWITTER. (LOT) |
| 1:46 am | 1.00 | Round Lake | Lake | FROM SECOND STORM THAT PASSED THROUGH ROUND LAKE. (LOT) |
| 10:12 am | 1.00 | 4 SW Plainfield | Will | LARGEST HAILSTONES WERE ABOUT QUARTER SIZE. (LOT) |
| 10:22 am | 1.00 | 4 SSW Naperville | Will | SEVERAL REPORTS OF NICKEL TO QUARTER SIZE HAIL ON THE SOUTH SIDE OF NAPERVILLE. (LOT) |
What NEXRAD radar recorded inside the metro
4,865 signatures from 11 radars fell inside the metro's counties on this local date, counting every cell the algorithm rated from a 10% to a 100% chance of hail; 1,841 were rated 100% and 91 had a maximum expected size of 2 inches or more.
| Radar | Signatures | Rated 100% | 1 in or more | 2 in or more | Largest expected | First | Last |
|---|---|---|---|---|---|---|---|
| KORD | 1,178 | 380 | 420 | 32 | 2.75 in | 12:02 am | 12:53 pm |
| KMDW | 1,016 | 351 | 266 | 6 | 2.00 in | 12:13 am | 12:55 pm |
| KMKE | 772 | 246 | 280 | 2 | 2.00 in | 12:00 am | 7:57 am |
| KMKX | 406 | 183 | 152 | 10 | 2.50 in | 12:03 am | 12:37 pm |
| KLOT | 386 | 190 | 169 | 12 | 2.50 in | 12:01 am | 12:50 pm |
| KDVN | 360 | 156 | 124 | 6 | 2.25 in | 12:10 am | 12:28 pm |
| KILX | 290 | 84 | 69 | 5 | 2.50 in | 3:30 am | 12:55 pm |
| KIWX | 271 | 133 | 92 | 7 | 2.50 in | 12:11 am | 12:31 pm |
| KGRR | 139 | 92 | 71 | 11 | 2.75 in | 12:12 am | 12:36 pm |
| KIND | 28 | 14 | 9 | 0 | 1.50 in | 5:38 am | 10:53 am |
| KGRB | 19 | 12 | 5 | 0 | 1.75 in | 12:14 am | 8:13 am |
Each radar that scans a storm writes its own signature about every 4 to 6 minutes, so one storm produces many rows and overlapping radars count it more than once. The raw rows for this day are in NOAA's Severe Weather Data Inventory.
Check an address for July 23, 2022
See, free, how many hail signatures NOAA recorded within 1, 3 and 5 miles of one address that day and the nearest spotter report. The full report is $19.
Spotter reports come from the Storm Prediction Center's preliminary daily logs, grouped here by local calendar date (Central Daylight Time) and by county: a report counts for Chicago when its coordinates fall inside one of the metro's 7 counties (Cook, DuPage, Kane, Lake, McHenry, Will and Kendall counties). Radar signatures are estimates from the Hail Detection Algorithm, not measured stones; they include every cell it rated, from a 10% to a 100% probability of hail. How these pages are built.