Hail in St. Louis on Tuesday, September 26, 2023
The Storm Prediction Center logged 13 hail reports in St. Louis on Tuesday, September 26, 2023, between 4:11 pm and 9:40 pm CDT, in 5 of the metro's 12 counties. The largest was 1.75 inches at 1 N Wentzville (St. Charles, MO) at 8:40 pm. NOAA radar flagged 2,064 hail signatures inside the metro that day: 541 rated a 100% chance of hail and 459 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 9 places in Franklin, MO, Jefferson, MO, St. Charles, MO, St. Louis, MO and Warren, MO, named as the National Weather Service described them.
- Wentzville 5 reports, up to 1.75 in
- Cedar Hill 1 report, up to 1.00 in
- Flint Hill 1 report, up to 1.00 in
- Foristell 1 report, up to 1.50 in
- Manchester 1 report, up to 1.00 in
- Pacific 1 report, up to 1.00 in
- Union 1 report, up to 1.00 in
- Washington 1 report, up to 1.00 in
- Wright City 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 |
|---|---|---|---|---|
| 4:11 pm | 1.00 | Cedar Hill | Jefferson, MO | Via Twitter with picture included: 1 inch hail estimated from picture. (LSX) |
| 5:25 pm | 1.00 | 2 SSW Manchester | St. Louis, MO | Via Twitter with picture included: 1 inch hail estimated from picture. (LSX) |
| 8:24 pm | 1.00 | Wright City | Warren, MO | Via Facebook with picture included: 1 inch diameter hail measured with ruler. (LSX) |
| 8:38 pm | 1.50 | 3 E Foristell | St. Charles, MO | Trained spotter reported ping pong ball sized hail halfway between Foristell and Wentzville. (LSX) |
| 8:38 pm | 1.00 | 2 W Wentzville | St. Charles, MO | Via Facebook with picture included: 1 inch diameter hail measured with ruler. (LSX) |
| 8:40 pm | 1.50 | 1 E Wentzville | St. Charles, MO | Via Facebook with picture included: multiple hailstones ranging from 1 to 1.5 inches estimated using quarter in picture. (LSX) |
| 8:40 pm | 1.75 | 1 N Wentzville | St. Charles, MO | Via Facebook with picture included: 1.75 inch diameter hail measured with ruler. (LSX) |
| 8:40 pm | 1.50 | 1 NNW Wentzville | St. Charles, MO | Via Twitter with picture included: 1.5 inch hail estimated from picture. Damage to siding and window screens on pictured home. (LSX) |
| 8:40 pm | 1.75 | 2 WNW Wentzville | St. Charles, MO | Via Twitter with pictures included: Golf ball sized hail estimated from picture damaged siding and window screens in numerous homes on northern side of Wentzville. time (LSX) |
| 8:43 pm | 1.00 | 2 SW Flint Hill | St. Charles, MO | 2 Miles NW of Wentzville city center. (LSX) |
| 9:11 pm | 1.00 | 1 E Washington | Franklin, MO | (LSX) |
| 9:26 pm | 1.00 | Pacific | Franklin, MO | (LSX) |
| 9:40 pm | 1.00 | Union | Franklin, MO | Report relayed by KMOV. (LSX) |
What NEXRAD radar recorded inside the metro
2,064 signatures from 6 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; 541 were rated 100% and 49 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 |
|---|---|---|---|---|---|---|---|
| KSTL | 878 | 229 | 253 | 17 | 2.75 in | 3:16 pm | 11:57 pm |
| KLSX | 426 | 113 | 107 | 19 | 3.75 in | 3:10 pm | 11:55 pm |
| KILX | 337 | 99 | 49 | 12 | 2.75 in | 4:07 pm | 11:56 pm |
| KPAH | 242 | 58 | 34 | 1 | 2.00 in | 3:52 pm | 11:58 pm |
| KVWX | 180 | 42 | 16 | 0 | 1.50 in | 5:10 pm | 11:58 pm |
| KSGF | 1 | 0 | 0 | 0 | 0.50 in | 9:03 pm | 9:03 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 September 26, 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 (Central Daylight Time) and by county: a report counts for St. Louis when its coordinates fall inside one of the metro's 12 counties (the counties of St. Louis, MO, St. Louis City, MO, St. Charles, MO, Jefferson, MO, Franklin, MO, Lincoln, MO, Warren, MO, Madison, IL, St. Clair, IL, Monroe, IL, Jersey, IL and Clinton, IL). 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.