Hail in Des Moines on Tuesday, June 22, 2021
The Storm Prediction Center logged 17 hail reports in Des Moines on Tuesday, June 22, 2021, between 5:25 pm and 6:31 pm CDT, in 2 of the metro's 6 counties. The largest was 1.50 inches at 3 ESE Indianola (Warren County) at 6:31 pm. NOAA radar flagged 94 hail signatures inside the metro that day: 26 rated a 100% chance of hail and 33 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 9 places in Polk and Warren counties, named as the National Weather Service described them.
- Johnston 4 reports, up to 1.50 in
- Grimes 3 reports, up to 1.00 in
- Indianola 3 reports, up to 1.50 in
- Urbandale 2 reports, up to 1.00 in
- Ackworth 1 report, up to 1.50 in
- Clive 1 report, up to 1.00 in
- Norwalk 1 report, up to 1.00 in
- Spring Hill 1 report, up to 1.00 in
- Windsor Heights 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 |
|---|---|---|---|---|
| 5:25 pm | 1.00 | 1 NNW Grimes | Polk | NICKEL TO QUARTER SIZE HAIL. (DMX) |
| 5:30 pm | 1.00 | 1 S Johnston | Polk | (DMX) |
| 5:30 pm | 1.00 | 1 SE Grimes | Polk | REPORT FROM MPING: QUARTER (1.00 IN.). (DMX) |
| 5:33 pm | 1.00 | 1 NNW Grimes | Polk | TIME ESTIMATED BY RADAR. (DMX) |
| 5:35 pm | 1.00 | 2 W Johnston | Polk | REPORT FROM MPING: QUARTER (1.00 IN.). (DMX) |
| 5:38 pm | 1.00 | 1 SSW Johnston | Polk | REPORT VIA SOCIAL MEDIA. (DMX) |
| 5:39 pm | 1.00 | 1 WNW Urbandale | Polk | (DMX) |
| 5:42 pm | 1.00 | 2 E Urbandale | Polk | REPORT FROM MPING: QUARTER (1.00 IN.). (DMX) |
| 5:45 pm | 1.00 | 1 NW Clive | Polk | LOTS OF QUARTER SIZED HAIL. (DMX) |
| 5:46 pm | 1.00 | 1 SSW Windsor Heights | Polk | (DMX) |
| 5:48 pm | 1.50 | 2 E Johnston | Polk | REPORT FROM MPING: PING PONG BALL (1.50 IN.). (DMX) |
| 5:58 pm | 1.00 | 1 S Norwalk | Warren | REPORT FROM MPING: QUARTER (1.00 IN.). (DMX) |
| 6:05 pm | 1.00 | 5 ENE Spring Hill | Warren | ROAD IS COMPLETELY COVERED WITH DIME TO QUARTER SIZE HAIL ALONG G24 HIGHWAY NEAR HIGHWAY 65/69 INTERSECTION NORTH OF INDIANOLA. TIME ESTIMATED BY RADAR. (DMX) |
| 6:22 pm | 1.50 | Indianola | Warren | QUARTER TO PING PONG BALL SIZED HAIL IN INDIANOLA. (DMX) |
| 6:25 pm | 1.50 | 1 WSW Ackworth | Warren | 1.5 INCH HAIL STILL ALONG HIGHWAY 92 EAST OF INDIANOLA. OCCURRENCE TIME ESTIMATED BY RADAR. (DMX) |
| 6:30 pm | 1.00 | 3 ESE Indianola | Warren | REPORT FROM MPING: QUARTER (1.00 IN.). (DMX) |
| 6:31 pm | 1.50 | 3 ESE Indianola | Warren | REPORT FROM MPING: PING PONG BALL (1.50 IN.). (DMX) |
What NEXRAD radar recorded inside the metro
94 signatures from 3 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; 26 were rated 100% and 13 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 |
|---|---|---|---|---|---|---|---|
| KDMX | 48 | 12 | 20 | 9 | 3.00 in | 2:42 pm | 8:19 pm |
| KDVN | 24 | 0 | 0 | 0 | 0.50 in | 2:37 pm | 8:18 pm |
| KOAX | 22 | 14 | 13 | 4 | 3.00 in | 4:28 pm | 7:21 pm |
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 June 22, 2021
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 Des Moines when its coordinates fall inside one of the metro's 6 counties (Polk, Dallas, Warren, Madison, Jasper and Story 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.