Round Rock, Texas Hail Report and Map: May 19, 2026
Was there hail in Round Rock, TX on May 19, 2026? Radar estimated hail up to 1.19 inches inside the town limits of Round Rock on May 19, 2026 (Eastern time). Radar estimates of at least 0.5 inch covered 41% of the town. Across the report area, the maximum radar estimate was 3.7 inches. The strongest part of the swath was about 275 miles west of Austin, TX. Radar detected hail aloft in this area between about 12:30 p.m. and 9:35 p.m. CT on May 19, 2026.
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Hail estimates at a glance
| Storm date (Eastern time) | May 19, 2026 (Tuesday) |
|---|---|
| Maximum radar estimate across the area | 3.7 inches; strongest part of the swath about 275 miles west of Austin, TX |
| Maximum radar estimate inside Round Rock | 1.19 inches |
| Share of Round Rock with radar estimates of at least 0.5 inch | 41% |
| Approximate radar timing | Between about 12:30 p.m. and 9:35 p.m. CT on May 19, 2026 (Central time) |
| County coverage includes (0.5 inch or larger) | Williamson County (580 sq mi), Burnet County (491 sq mi), Menard County (477 sq mi), Irion County (458 sq mi), Schleicher County (375 sq mi) and Tom Green County (370 sq mi) |
| Area with radar estimates of 0.5 inch or larger | about 5,849 square miles |
| Area with radar estimates of 1 inch or larger | about 1,481 square miles |
| Source | NOAA MRMS radar hail estimates (MESH) |
Which towns had hail on May 19, 2026?
Radar estimated hail of at least 0.5 inch inside these town limits, using U.S. Census boundaries. Each percentage is the share of town area with those estimates.
| Town | County | Maximum radar estimate inside town limits | Town area with estimates of at least 0.5 inch |
|---|---|---|---|
| Mertzon, TX | Irion County | 2.15 inches | 100% |
| Briggs, TX | 1.53 inches | 100% | |
| Buchanan Dam, TX | Llano County | 1.47 inches | 49% |
| Llano, TX | Llano County | 1.39 inches | 82% |
| Big Lake, TX | Reagan County | 1.33 inches | 100% |
| Tow, TX | 1.29 inches | 100% | |
| Granger, TX | Williamson County | 1.23 inches | 100% |
| Round Rock, TX | Williamson County | 1.19 inches | 41% |
| Belton, TX | Bell County | 1.18 inches | 36% |
| Miles, TX | Runnels County | 1.15 inches | 65% |
| Georgetown, TX | Williamson County | 1.06 inches | 37% |
| Sonora, TX | Sutton County | 1.04 inches | 64% |
| Taylor, TX | Williamson County | 1.02 inches | 51% |
| Hudson Bend, TX | Travis County | 0.99 inch | 67% |
| Jarrell, TX | Williamson County | 0.99 inch | 100% |
| Volente, TX | Travis County | 0.96 inch | 100% |
| Rowena, TX | 0.93 inch | 100% | |
| Jonestown, TX | Travis County | 0.92 inch | 46% |
| Austin, TX | Travis County | 0.91 inch | 5% |
| Pflugerville, TX | Travis County | 0.91 inch | 30% |
| Burnet, TX | Burnet County | 0.91 inch | 94% |
| Menard, TX | Menard County | 0.89 inch | 100% |
| Temple, TX | Bell County | 0.84 inch | 19% |
| Sonterra, TX | 0.84 inch | 100% | |
| Buchanan Lake Village, TX | Llano County | 0.83 inch | 100% |
| Marble Falls, TX | Burnet County | 0.81 inch | 20% |
How big was the hail in Round Rock?
Radar estimated hail up to 1.19 inches inside the town limits of Round Rock. Among the listed towns, the highest estimate was 2.15 inches inside the limits of Mertzon. The maximum estimates in Austin, Temple and Georgetown were 1.06 inches or less. A town's maximum isn't an estimate for every home. Check the swath for estimates around an address.
What time did radar detect hail?
Radar detected hail aloft in this area between about 12:30 p.m. and 9:35 p.m. CT on May 19, 2026. We used 490 NOAA radar hail detections in this area to estimate the window. We trim outlying detection times when enough are available, then round down to five-minute marks. It doesn't give an arrival time at an address.
Data source and limits
We use NOAA's MRMS radar product MESH (Maximum Estimated Size of Hail) for hail-size estimates. Each town's figure is the maximum inside its Census town limits. The percentage is the town area with estimates of at least 0.5 inch. A town's maximum isn't an estimate for every home. Each storm date covers one calendar day in Eastern time. A late-evening storm west of the Eastern time zone can appear under two dates. Radar estimates don't confirm hail on the ground or roof damage. Hail of 0.5 to 0.75 inch can damage roofs, especially older roofs. An estimate below 1 inch doesn't rule out damage. Read how we calculate sizes and times.