Hail in San Antonio on Monday, May 3, 2021
The Storm Prediction Center logged 41 hail reports in San Antonio on Monday, May 3, 2021, between 7:10 pm and 9:38 pm CDT, in 4 of the metro's 8 counties. The largest was 5.50 inches at 3 SSE China Grove (Bexar County) at 8:35 pm. NOAA radar flagged 193 hail signatures inside the metro that day: 160 rated a 100% chance of hail and 146 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 13 places in Bandera, Bexar, Guadalupe and Kendall counties, named as the National Weather Service described them.
- San Antonio 10 reports, up to 3.00 in
- Boerne 7 reports, up to 2.50 in
- China Grove 5 reports, up to 5.50 in
- Balcones Heights 4 reports, up to 2.00 in
- New Berlin 4 reports, up to 2.00 in
- Sea World 4 reports, up to 1.50 in
- Alamo Heights 1 report, up to 1.75 in
- Albert & Bessie K 1 report, up to 2.75 in
- Converse 1 report, up to 1.00 in
- Kirby 1 report, up to 1.75 in
- Lakehills 1 report, up to 2.00 in
- Seguin 1 report, up to 1.25 in
- Sisterdale 1 report, up to 2.00 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 |
|---|---|---|---|---|
| 7:10 pm | 1.50 | 6 WSW Sea World | Bexar | 1.5 INCH HAIL MEASURED NEAR POTRANCO ROAD AND 211. (EWX) |
| 7:12 pm | 1.50 | 6 WSW Sea World | Bexar | TWITTER REPORT. (EWX) |
| 7:20 pm | 2.00 | Lakehills | Bandera | DELAYED REPORT VIA SOCIAL MEDIA. PHOTO OF APPROXIMATELY 2 INCH HAIL IN LAKEHILLS. (EWX) |
| 7:28 pm | 1.00 | 3 NNE Sea World | Bexar | TRAINED SPOTTER CALLED IN A REPORT OF HAIL UP TO 1 INCH ON BARE BACK TRAIL. (EWX) |
| 7:35 pm | 1.00 | 1 S Boerne | Kendall | ESTIMATED HAIL UP TO QUARTER SIZED IN BOERNE. (EWX) |
| 7:36 pm | 2.50 | 2 WNW Boerne | Kendall | (EWX) |
| 7:37 pm | 1.00 | 3 NW Sea World | Bexar | CORRECTS PREVIOUS HAIL REPORT FROM 3 NW SEA WORLD. MULTIPLE REPORTS OF PEA TO QUARTER SIZE HAIL IN THE ALAMO RANCH AREA FROM HAM OPERATORS. (EWX) |
| 7:37 pm | 2.75 | 3 NNE Albert & Bessie K | Kendall | TWITTER REPORT FROM TAPATIO SPRINGS HILL COUNTRY GOLF CLUB. (EWX) |
| 7:37 pm | 1.75 | 1 SW Boerne | Kendall | GOLF BALL SIZED HAIL REPORTED BY A TRAINED SPOTTER IN BOERNE. (EWX) |
| 7:38 pm | 2.50 | 1 SE Boerne | Kendall | LARGEST HAIL REPORTS OUT OF BOERNE APPEAR TO BE ABOUT 2.5 INCHES OR TENNIS BALL SIZED FROM SOCIAL MEDIA AND SPOTTER REPORTS. TIME ESTIMATED VIA RADAR. (EWX) |
| 7:40 pm | 2.00 | 6 S Sisterdale | Kendall | (EWX) |
| 7:45 pm | 1.50 | 2 ESE Boerne | Kendall | TWITTER REPORT. (EWX) |
| 7:45 pm | 1.75 | 1 WSW Boerne | Kendall | AT FISCHER AND LATTIMORE... TWITTER REPORT. (EWX) |
| 7:45 pm | 2.00 | 2 ESE Boerne | Kendall | TWITTER REPORT. (EWX) |
| 7:57 pm | 1.00 | 3 SSW Balcones Heights | Bexar | TWITTER REPORT... JUST SOUTH OF ST. MARYS UNIVERSITY. (EWX) |
| 7:59 pm | 1.00 | 3 SSW Balcones Heights | Bexar | 1 INCH HAIL REPORTED AT ST MARYS UNIVERSITY. (EWX) |
| 8:00 pm | 1.75 | 3 S Balcones Heights | Bexar | TWITTER REPORT: MENCHACA AND NW 29TH. (EWX) |
| 8:03 pm | 1.00 | 3 SSW San Antonio | Bexar | HAIL UP TO ONE INCH REPORTED NEAR I-35 AND DIVISION. (EWX) |
| 8:05 pm | 2.00 | 3 SSW San Antonio | Bexar | PHOTO VIA SOCIAL MEDIA OF ESTIMATED 2 HAIL NEAR I35 AND DIVISION. (EWX) |
| 8:05 pm | 1.75 | 2 W San Antonio | Bexar | TRAINED SPOTTER REPORT OF GOLF BALL SIZED HAIL NEAR ZARZAMORA AND SAUNDERS AT 805PM. (EWX) |
| 8:06 pm | 2.00 | 3 SSE Balcones Heights | Bexar | TWITTER REPORT AT WOODLAWN LAKE. (EWX) |
| 8:10 pm | 3.00 | 2 WSW San Antonio | Bexar | TWITTER REPORT AT NORIA AND CALAVERAS. (EWX) |
| 8:10 pm | 2.75 | 2 W San Antonio | Bexar | UPDATES PREVIOUS HAIL REPORT FROM 2 W SAN ANTONIO. TRAINED SPOTTER REPORT OF BASEBALL SIZED HAIL NEAR ZARZAMORA AND SAUNDERS AT 810PM. (EWX) |
| 8:13 pm | 1.75 | 1 S Alamo Heights | Bexar | TWITTER REPORT AT BROADWAY AND HILDEBRAND. (EWX) |
| 8:14 pm | 1.50 | 4 SSE San Antonio | Bexar | TWITTER REPORT AT I-37 AND SOUTHCROSS. (EWX) |
| 8:14 pm | 2.00 | 3 SE San Antonio | Bexar | TWITTER REPORT AT STEVES AV AND GEVERS ST. (EWX) |
| 8:15 pm | 2.00 | 2 SSE San Antonio | Bexar | TWITTER REPORT... BETWEEN ROOSEVELT AND S. PRESA NEAR ROBERT B GREEN ACADEMY. (EWX) |
| 8:20 pm | 5.50 | 3 SSE China Grove | Bexar | CORRECTS PREVIOUS HAIL REPORT FROM 3 SSE CHINA GROVE. TWITTER REPORT... VERIFED THROUGH LOCAL MEDIA. CORECCTED TIME. (EWX) |
| 8:20 pm | 2.00 | 5 SE San Antonio | Bexar | TWITTER REPORT AT GOLIAD RD AND EAST PALFREY DR. (EWX) |
| 8:20 pm | 4.50 | 3 WSW China Grove | Bexar | REPORT VIA LOCAL MEDIA TWITTER. (EWX) |
| 8:20 pm | 2.75 | 3 ESE San Antonio | Bexar | TWITTER REPORT ROLAND AV. AND I-10. (EWX) |
| 8:25 pm | 2.75 | 5 SW China Grove | Bexar | TWITTER REPORT AT SE MILITARY AND ALSBROOK DR. (EWX) |
| 8:27 pm | 1.75 | 1 E Kirby | Bexar | GOLF BALL SIZED HAIL REPORTED IN KIRBY OFF BINZ-ENGLEMANN. (EWX) |
| 8:30 pm | 2.50 | 5 WSW China Grove | Bexar | TWITTER REPORT KATE SCHENCK AV AND ALSBROOK DR. (EWX) |
| 8:35 pm | 5.50 | 3 SSE China Grove | Bexar | TWITTER REPORT... VERIFED THROUGH LOCAL MEDIA. (EWX) |
| 8:57 pm | 1.00 | 5 SE Converse | Bexar | TWITTER REPORT AT GRAYTOWN ROAD JUST NORTHEAST OF FM1604. (EWX) |
| 9:08 pm | 2.00 | New Berlin | Guadalupe | CORRECTS PREVIOUS HAIL REPORT FROM NEW BERLIN. EMAIL REPORT AND PICTURE TO NWS OFFICE. (EWX) |
| 9:12 pm | 2.00 | New Berlin | Guadalupe | EMAIL REPORT AND PICTURE TO NWS OFFICE. (EWX) |
| 9:16 pm | 2.00 | 5 E New Berlin | Guadalupe | COCORAHS COORDINATOR PASSED ALONG A REPORT OF HEN EGG SIZED HAIL NEAR MESQUITE PASS. (EWX) |
| 9:20 pm | 1.50 | 7 ESE New Berlin | Guadalupe | PICTURE OF QUARTER TO PING PONG BALL SIZED HAIL JUST SOUTH OF SEGUIN FROM TRAINED SPOTTER ON JAKES COLONY RD. (EWX) |
| 9:38 pm | 1.25 | 5 S Seguin | Guadalupe | REPORT OF HALF DOLLAR SIZED HAIL 5 S SEGUIN. PICTURE VIA SOCIAL MEDIA. (EWX) |
What NEXRAD radar recorded inside the metro
193 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; 160 were rated 100% and 58 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 |
|---|---|---|---|---|---|---|---|
| KGRK | 78 | 67 | 56 | 19 | 2.50 in | 6:32 pm | 9:27 pm |
| KDFX | 63 | 53 | 47 | 20 | 2.75 in | 6:36 pm | 9:21 pm |
| KEWX | 52 | 40 | 43 | 19 | 3.75 in | 6:39 pm | 9:22 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 May 3, 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.