Hail in Louisville on Tuesday, May 9, 2023
The Storm Prediction Center logged 7 hail reports in Louisville on Tuesday, May 9, 2023, between 3:04 am and 4:02 am EDT, in 2 of the metro's 8 counties. The largest was 2.75 inches at New Middletown (Harrison, IN) at 3:12 am. NOAA radar flagged 651 hail signatures inside the metro that day: 181 rated a 100% chance of hail and 200 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 5 places in Harrison, IN and Jefferson, KY, named as the National Weather Service described them.
- Central 2 reports, up to 1.50 in
- New Middletown 2 reports, up to 2.75 in
- Jeffersontown 1 report, up to 1.25 in
- Louisville Int'l Airpor 1 report, up to 1.75 in
- Shively 1 report, up to 1.75 in
Every hail report logged that day
Times are Eastern 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 |
|---|---|---|---|---|
| 3:04 am | 1.00 | 4 N Central | Harrison, IN | (LMK) |
| 3:07 am | 1.50 | 2 ENE Central | Harrison, IN | (LMK) |
| 3:07 am | 1.75 | 3 WSW New Middletown | Harrison, IN | PUBLIC RELAYED BY BROADCAST MEDIA. (LMK) |
| 3:12 am | 2.75 | New Middletown | Harrison, IN | (LMK) |
| 3:39 am | 1.75 | 1 S Shively | Jefferson, KY | (LMK) |
| 3:43 am | 1.75 | Louisville Int'l Airpor | Jefferson, KY | (LMK) |
| 4:02 am | 1.25 | 3 SSE Jeffersontown | Jefferson, KY | (LMK) |
What NEXRAD radar recorded inside the metro
651 signatures from 9 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; 181 were rated 100% and 51 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 |
|---|---|---|---|---|---|---|---|
| KSDF | 131 | 14 | 32 | 5 | 2.50 in | 2:50 am | 6:14 am |
| KIND | 109 | 36 | 37 | 10 | 2.75 in | 2:49 am | 5:55 am |
| KVWX | 99 | 31 | 32 | 11 | 2.75 in | 2:50 am | 6:00 am |
| KOHX | 81 | 24 | 23 | 8 | 3.25 in | 2:52 am | 5:55 am |
| KHPX | 63 | 20 | 21 | 5 | 2.50 in | 2:49 am | 6:00 am |
| KLVX | 62 | 24 | 25 | 8 | 2.75 in | 2:50 am | 5:52 am |
| KILN | 62 | 23 | 22 | 4 | 2.00 in | 3:25 am | 5:57 am |
| KJKL | 42 | 9 | 8 | 0 | 1.50 in | 3:41 am | 5:55 am |
| KCVG | 2 | 0 | 0 | 0 | 0.75 in | 4:35 am | 4:38 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 May 9, 2023
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 (Eastern Daylight Time) and by county: a report counts for Louisville when its coordinates fall inside one of the metro's 8 counties (the counties of Jefferson, KY, Oldham, KY, Bullitt, KY, Shelby, KY, Spencer, KY, Clark, IN, Floyd, IN and Harrison, IN). 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.