Hail Swath Map Preview
The San Antonio, TX hail swath map preview was last reviewed on August 27, 2026 and shows mapped hail estimates up to 4.00+. There are 41 public hail reports, 0 public wind reports, and 0 nearby tornado reports listed for the May 3, 2021 event.
View the May 3, 2021 San Antonio, TX hail event on the free interactive hail map, then check a free Hail Report by ZIP to see a more local hail signal for your area.
Impact Area and Population for the San Antonio, TX Hail Map
The May 3, 2021 hail swath map for San Antonio, TX covers approximately 1,249 square miles and includes an estimated 745,248 people inside the mapped footprint. The largest mapped area is in the 0.50-0.75" hail band, covering 366 square miles. The highest estimated population exposure is in the 0.50-0.75" hail band with 189,309 people.
| Mapped Hail Band | Impact Area | Population |
|---|---|---|
| < 0.50" | 208 sq mi | 66,198 |
| 0.50-0.75" | 366 sq mi | 189,309 |
| 0.75-1.00" | 223 sq mi | 136,005 |
| 1.00-1.25" | 137 sq mi | 66,768 |
| 1.25-1.50" | 100 sq mi | 60,420 |
| 1.50-1.75" | 88 sq mi | 68,887 |
| 1.75-2.00" | 49 sq mi | 56,755 |
| 2.00-2.25" | 18 sq mi | 2,646 |
| 2.25-2.50" | 20 sq mi | 19,538 |
| 2.50-2.75" | 20 sq mi | 47,441 |
| 2.75-3.00" | 5 sq mi | 17,874 |
| 4.00"+ | 14 sq mi | 13,407 |
Get a free Hail Report by ZIP to see a more local hail signal and whether the May 3, 2021 San Antonio, TX hail event may have reached your area.
Housing Exposure Inside the San Antonio, TX Hail Swath Map
Inside the May 3, 2021 hail swath map area for San Antonio, TX, HailGeeks estimates 298,083 single-family homes, 8,773 townhomes, and 103,545 multifamily properties within the mapped storm footprint. Single-family-home exposure is highest in the 0.50-0.75" hail band, with 73,217 single-family homes.
| Mapped Hail Band | Single-Family | Townhomes | Multifamily |
|---|---|---|---|
| < 0.50" | 24,000 | 793 | 14,500 |
| 0.50-0.75" | 73,217 | 1,992 | 23,193 |
| 0.75-1.00" | 53,539 | 1,540 | 16,222 |
| 1.00-1.25" | 24,576 | 765 | 8,950 |
| 1.25-1.50" | 21,501 | 624 | 8,017 |
| 1.50-1.75" | 29,212 | 948 | 8,809 |
| 1.75-2.00" | 28,619 | 848 | 9,782 |
| 2.00-2.25" | 941 | 50 | 320 |
| 2.25-2.50" | 8,374 | 406 | 3,911 |
| 2.50-2.75" | 20,404 | 578 | 6,376 |
| 2.75-3.00" | 8,026 | 197 | 2,698 |
| 4.00"+ | 5,674 | 32 | 767 |
Use this table to review housing exposure by hail band for the May 3, 2021 San Antonio, TX hail map. To check a specific property more closely, use a free Hail Report by Address.
Counties Inside the San Antonio, TX Hail Map
Hail from the May 3, 2021 storm was mapped across 12 counties in the San Antonio, TX region. Bexar County, TX had the strongest mapped signal, peaking at 4.00" with roughly 279,487 single-family homes inside the swath.
County pages group every mapped hail event in the area. For a closer look, drop to the city or ZIP level below, or run a free Hail Report by Address.
Cities Inside the San Antonio, TX Hail Map
Zooming in, the swath touched 19 cities near San Antonio, TX. San Antonio, TX had the strongest mapped signal at 3.00", with an estimated 217,286 single-family homes exposed.
City cards show where the May 3, 2021 San Antonio, TX hail activity was mapped, but your ZIP can show a closer local signal. Get a free Hail Report by ZIP, and if the signal looks meaningful, ask a local pro about a Remote Hail Inspection to see whether an on-site roof or exterior review may be worth scheduling.
ZIP Codes Inside the San Antonio, TX Hail Swath Map
At the ZIP level, the May 3, 2021 San Antonio, TX hail map spans 67 ZIP codes. ZIP 78222 shows the strongest local signal, with mapped hail estimates up to 4.00" and an estimated single-family-home exposure of 7,912.
Check your ZIP in seconds to see whether hail activity from the May 3, 2021 San Antonio, TX event was mapped near your area.
Public Hail, Wind, and Tornado Reports
Public storm report tables connected to the May 3, 2021 hail map for San Antonio, TX currently list 41 public hail reports, 0 public wind reports, and 0 tornado reports.
| Date & Time | Hail Size | City | State | Description |
|---|---|---|---|---|
May 3, 2021 7:10 PM CT |
1.50 in | 6 WSW Sea World | TX | 1.5 INCH HAIL MEASURED NEAR POTRANCO ROAD AND 211. |
May 3, 2021 7:12 PM CT |
1.50 in | 6 WSW Sea World | TX | TWITTER REPORT. |
May 3, 2021 7:20 PM CT |
2.00 in | Lakehills | TX | DELAYED REPORT VIA SOCIAL MEDIA. PHOTO OF APPROXIMATELY 2 INCH HAIL IN LAKEHILLS. |
May 3, 2021 7:28 PM CT |
1.00 in | 3 NNE Sea World | TX | TRAINED SPOTTER CALLED IN A REPORT OF HAIL UP TO 1 INCH ON BARE BACK TRAIL. |
May 3, 2021 7:35 PM CT |
1.00 in | 1 S Boerne | TX | ESTIMATED HAIL UP TO QUARTER SIZED IN BOERNE. |
May 3, 2021 7:36 PM CT |
2.50 in | 2 WNW Boerne | TX | No National Weather Service description provided. |
May 3, 2021 7:37 PM CT |
1.75 in | 1 SW Boerne | TX | GOLF BALL SIZED HAIL REPORTED BY A TRAINED SPOTTER IN BOERNE. |
May 3, 2021 7:37 PM CT |
1.00 in | 3 NW Sea World | TX | 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. |
May 3, 2021 7:37 PM CT |
2.75 in | 3 NNE Albert & Bessie K | TX | TWITTER REPORT FROM TAPATIO SPRINGS HILL COUNTRY GOLF CLUB. |
May 3, 2021 7:38 PM CT |
2.50 in | 1 SE Boerne | TX | 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. |
May 3, 2021 7:40 PM CT |
2.00 in | 6 S Sisterdale | TX | No National Weather Service description provided. |
May 3, 2021 7:45 PM CT |
1.50 in | 2 ESE Boerne | TX | TWITTER REPORT. |
May 3, 2021 7:45 PM CT |
2.00 in | 2 ESE Boerne | TX | TWITTER REPORT. |
May 3, 2021 7:45 PM CT |
1.75 in | 1 WSW Boerne | TX | AT FISCHER AND LATTIMORE... TWITTER REPORT. |
May 3, 2021 7:57 PM CT |
1.00 in | 3 SSW Balcones Heights | TX | TWITTER REPORT... JUST SOUTH OF ST. MARYS UNIVERSITY. |
May 3, 2021 7:59 PM CT |
1.00 in | 3 SSW Balcones Heights | TX | 1 INCH HAIL REPORTED AT ST MARYS UNIVERSITY. |
May 3, 2021 8:00 PM CT |
1.75 in | 3 S Balcones Heights | TX | TWITTER REPORT: MENCHACA AND NW 29TH. |
May 3, 2021 8:03 PM CT |
1.00 in | 3 SSW San Antonio | TX | HAIL UP TO ONE INCH REPORTED NEAR I-35 AND DIVISION. |
May 3, 2021 8:05 PM CT |
2.00 in | 3 SSW San Antonio | TX | PHOTO VIA SOCIAL MEDIA OF ESTIMATED 2 HAIL NEAR I35 AND DIVISION. |
May 3, 2021 8:05 PM CT |
1.75 in | 2 W San Antonio | TX | TRAINED SPOTTER REPORT OF GOLF BALL SIZED HAIL NEAR ZARZAMORA AND SAUNDERS AT 805PM. |
May 3, 2021 8:06 PM CT |
2.00 in | 3 SSE Balcones Heights | TX | TWITTER REPORT AT WOODLAWN LAKE. |
May 3, 2021 8:10 PM CT |
2.75 in | 2 W San Antonio | TX | UPDATES PREVIOUS HAIL REPORT FROM 2 W SAN ANTONIO. TRAINED SPOTTER REPORT OF BASEBALL SIZED HAIL NEAR ZARZAMORA AND SAUNDERS AT 810PM. |
May 3, 2021 8:10 PM CT |
3.00 in | 2 WSW San Antonio | TX | TWITTER REPORT AT NORIA AND CALAVERAS. |
May 3, 2021 8:13 PM CT |
1.75 in | 1 S Alamo Heights | TX | TWITTER REPORT AT BROADWAY AND HILDEBRAND. |
May 3, 2021 8:14 PM CT |
1.50 in | 4 SSE San Antonio | TX | TWITTER REPORT AT I-37 AND SOUTHCROSS. |
May 3, 2021 8:14 PM CT |
2.00 in | 3 SE San Antonio | TX | TWITTER REPORT AT STEVES AV AND GEVERS ST. |
May 3, 2021 8:15 PM CT |
2.00 in | 2 SSE San Antonio | TX | TWITTER REPORT... BETWEEN ROOSEVELT AND S. PRESA NEAR ROBERT B GREEN ACADEMY. |
May 3, 2021 8:20 PM CT |
2.75 in | 3 ESE San Antonio | TX | TWITTER REPORT ROLAND AV. AND I-10. |
May 3, 2021 8:20 PM CT |
2.00 in | 5 SE San Antonio | TX | TWITTER REPORT AT GOLIAD RD AND EAST PALFREY DR. |
May 3, 2021 8:20 PM CT |
4.50 in | 3 WSW China Grove | TX | REPORT VIA LOCAL MEDIA TWITTER. |
May 3, 2021 8:20 PM CT |
5.50 in | 3 SSE China Grove | TX | CORRECTS PREVIOUS HAIL REPORT FROM 3 SSE CHINA GROVE. TWITTER REPORT... VERIFED THROUGH LOCAL MEDIA. CORECCTED TIME. |
May 3, 2021 8:25 PM CT |
2.75 in | 5 SW China Grove | TX | TWITTER REPORT AT SE MILITARY AND ALSBROOK DR. |
May 3, 2021 8:27 PM CT |
1.75 in | 1 E Kirby | TX | GOLF BALL SIZED HAIL REPORTED IN KIRBY OFF BINZ-ENGLEMANN. |
May 3, 2021 8:30 PM CT |
2.50 in | 5 WSW China Grove | TX | TWITTER REPORT KATE SCHENCK AV AND ALSBROOK DR. |
May 3, 2021 8:35 PM CT |
5.50 in | 3 SSE China Grove | TX | TWITTER REPORT... VERIFED THROUGH LOCAL MEDIA. |
May 3, 2021 8:57 PM CT |
1.00 in | 5 SE Converse | TX | TWITTER REPORT AT GRAYTOWN ROAD JUST NORTHEAST OF FM1604. |
May 3, 2021 9:08 PM CT |
2.00 in | New Berlin | TX | CORRECTS PREVIOUS HAIL REPORT FROM NEW BERLIN. EMAIL REPORT AND PICTURE TO NWS OFFICE. |
May 3, 2021 9:12 PM CT |
2.00 in | New Berlin | TX | EMAIL REPORT AND PICTURE TO NWS OFFICE. |
May 3, 2021 9:16 PM CT |
2.00 in | 5 E New Berlin | TX | COCORAHS COORDINATOR PASSED ALONG A REPORT OF HEN EGG SIZED HAIL NEAR MESQUITE PASS. |
May 3, 2021 9:20 PM CT |
1.50 in | 7 ESE New Berlin | TX | PICTURE OF QUARTER TO PING PONG BALL SIZED HAIL JUST SOUTH OF SEGUIN FROM TRAINED SPOTTER ON JAKES COLONY RD. |
May 3, 2021 9:38 PM CT |
1.25 in | 5 S Seguin | TX | REPORT OF HALF DOLLAR SIZED HAIL 5 S SEGUIN. PICTURE VIA SOCIAL MEDIA. |
| Date & Time | Wind Speed | City | State | Description |
|---|---|---|---|---|
| No public wind reports are available for this event. | ||||
| Date & Time | Rating | City | State | Description |
|---|---|---|---|---|
| No public tornado reports are available for this event. | ||||
This table includes only public storm reports connected to the May 3, 2021 San Antonio, TX storm event. When available, each report may include the time, size or magnitude, city, state, and a short description.
Related Hail Maps in the San Antonio, TX Region
We found 4 more hail maps with reports from the same San Antonio, TX region as the May 3, 2021 event. These related maps cover storm dates from Mar 22, 2021 through Apr 28, 2021, with mapped hail estimates ranging from 1.25" to 3.25". In this set, the strongest related map reached 3.25", and the most recent map shown is from Apr 28, 2021.
If none of these related San Antonio, TX hail maps look close enough to your property, check a free Hail Report by Address. It reviews hail history for a specific location — not just the broader San Antonio, TX region — so you can check whether hail activity may have reached your property.
Local Hail Review Options Near San Antonio, TX
Not sure whether the May 3, 2021 San Antonio, TX hail map matters for your property? Start with a free Hail Report by Address to see whether hail activity was mapped for that property. If the property signal looks meaningful, you can choose a local pro serving the San Antonio, TX region and ask about a Remote Hail Inspection before deciding whether an on-site roof or exterior review is worth scheduling.
Check a specific property to see whether hail activity from the May 3, 2021 San Antonio, TX event — or another recent hail event — may have been mapped at that address.
Find a roof or exterior pro serving the San Antonio, TX region who can help you understand what the property hail signal may mean.
A participating local pro reviews property-level hail history remotely — not just the May 3, 2021 event — to help decide whether an on-site inspection may be worth scheduling.
A free Hail Report by Address and a Remote Hail Inspection can help you look beyond the May 3, 2021 hail map visuals alone. They do not confirm property damage and do not replace an on-site inspection for a property in the San Antonio, TX region, but they can help you make a more informed next decision before anyone climbs on the roof.
Frequently Asked Questions
Common questions about the May 3, 2021 San Antonio, TX hail event.