Hail in San Antonio on Wednesday, April 28, 2021
The Storm Prediction Center logged 16 hail reports in San Antonio on Wednesday, April 28, 2021, between 7:30 pm and 10:10 pm CDT, in 3 of the metro's 8 counties. The largest was 4.00 inches at Hondo (Medina County) at 7:45 pm. NOAA radar flagged 331 hail signatures inside the metro that day: 242 rated a 100% chance of hail and 246 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 7 places in Bexar, Comal and Medina counties, named as the National Weather Service described them.
- New Braunfels 5 reports, up to 1.75 in
- Lackland Afb 3 reports, up to 1.50 in
- Sea World 3 reports, up to 1.75 in
- Castroville 2 reports, up to 2.50 in
- D'hanis 1 report, up to 2.50 in
- Helotes 1 report, up to 1.00 in
- Hondo 1 report, up to 4.00 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 |
|---|---|---|---|---|
| 7:30 pm | 2.50 | 2 NE D'hanis | Medina | (EWX) |
| 7:45 pm | 4.00 | Hondo | Medina | SEVERAL PICTURES SHOWING 3 TO 4 INCH DIAMETER HAIL IN THE HONDO AREA. (EWX) |
| 8:00 pm | 2.50 | 7 W Castroville | Medina | (EWX) |
| 8:10 pm | 1.75 | 3 WNW Castroville | Medina | (EWX) |
| 8:17 pm | 1.00 | Sea World | Bexar | (EWX) |
| 8:22 pm | 1.50 | 3 NNW Lackland Afb | Bexar | TWITTER REPORT. (EWX) |
| 8:23 pm | 1.00 | 2 WNW Lackland Afb | Bexar | TWITTER REPORT. (EWX) |
| 8:27 pm | 1.00 | 4 SW Sea World | Bexar | (EWX) |
| 8:35 pm | 1.00 | 2 WSW Lackland Afb | Bexar | (EWX) |
| 8:40 pm | 1.75 | 3 NW Sea World | Bexar | TWITTER REPORT. (EWX) |
| 8:55 pm | 1.00 | 4 S Helotes | Bexar | (EWX) |
| 9:55 pm | 1.00 | 4 WNW New Braunfels | Comal | (EWX) |
| 10:00 pm | 1.75 | 6 NW New Braunfels | Comal | (EWX) |
| 10:05 pm | 1.25 | 6 WNW New Braunfels | Comal | (EWX) |
| 10:06 pm | 1.00 | 8 NNE New Braunfels | Comal | (EWX) |
| 10:10 pm | 1.00 | 8 NNE New Braunfels | Comal | (EWX) |
What NEXRAD radar recorded inside the metro
331 signatures from 5 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; 242 were rated 100% and 115 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 |
|---|---|---|---|---|---|---|---|
| KDFX | 95 | 58 | 62 | 30 | 4.00 in | 6:26 pm | 11:56 pm |
| KGRK | 86 | 71 | 71 | 29 | 4.00 in | 6:53 pm | 11:56 pm |
| KEWX | 81 | 53 | 56 | 27 | 4.00 in | 6:26 pm | 11:59 pm |
| KCRP | 55 | 50 | 48 | 26 | 3.75 in | 7:44 pm | 10:35 pm |
| KSJT | 14 | 10 | 9 | 3 | 4.00 in | 11:11 pm | 11:52 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 April 28, 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 San Antonio when its coordinates fall inside one of the metro's 8 counties (Bexar, Comal, Guadalupe, Kendall, Medina, Wilson, Atascosa and Bandera 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.