Hail in Austin on Thursday, April 15, 2021
The Storm Prediction Center logged 18 hail reports in Austin on Thursday, April 15, 2021, between 4:00 pm and 5:00 pm CDT, in 3 of the metro's 5 counties. The largest was 2.50 inches at 3 NNE Pflugerville (Travis County) at 4:44 pm. NOAA radar flagged 100 hail signatures inside the metro that day: 65 rated a 100% chance of hail and 51 with a maximum expected size of 1 inch or more.
Where hail was reported
Reports came from 7 places in Bastrop, Travis and Williamson counties, named as the National Weather Service described them.
- Leander 4 reports, up to 2.00 in
- Pflugerville 4 reports, up to 2.50 in
- Elgin 3 reports, up to 1.75 in
- Brushy Creek 2 reports, up to 1.75 in
- Cedar Park 2 reports, up to 1.75 in
- Liberty Hill 2 reports, up to 1.50 in
- Windemere 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 |
|---|---|---|---|---|
| 4:00 pm | 1.25 | Liberty Hill | Williamson | HAIL COVERING THE GROUND. (EWX) |
| 4:02 pm | 1.50 | 4 ESE Liberty Hill | Williamson | (EWX) |
| 4:05 pm | 2.00 | 1 ESE Leander | Williamson | 2 INCH HAIL AT THE INTERSECTION OF 183 AND CRYSTAL FALLS PKWY. (EWX) |
| 4:08 pm | 1.50 | 1 NNE Leander | Williamson | (EWX) |
| 4:08 pm | 1.50 | 5 NE Leander | Williamson | PING PONG SIZE HAIL AT LAKE SIDE DRIVE AND LAKE SIDE COVE. (EWX) |
| 4:09 pm | 1.75 | 3 NE Cedar Park | Williamson | (EWX) |
| 4:11 pm | 2.00 | 1 NNE Leander | Williamson | (EWX) |
| 4:15 pm | 1.75 | 1 ENE Cedar Park | Williamson | (EWX) |
| 4:17 pm | 1.75 | 3 SSE Brushy Creek | Williamson | GOLF BALL SIZE HAIL AT OCONNER AND 620. (EWX) |
| 4:23 pm | 1.75 | 2 NE Brushy Creek | Williamson | (EWX) |
| 4:25 pm | 2.00 | 2 NW Windemere | Williamson | (EWX) |
| 4:29 pm | 2.00 | 3 ENE Pflugerville | Travis | TWO INCH HAIL NEAR PFLUGERVILLE DENTED A CAR AND BROKE A CAR WINDOW. (EWX) |
| 4:35 pm | 1.00 | 2 E Pflugerville | Travis | (EWX) |
| 4:36 pm | 2.00 | 4 ENE Pflugerville | Travis | (EWX) |
| 4:44 pm | 2.50 | 3 NNE Pflugerville | Travis | (EWX) |
| 4:55 pm | 1.50 | 1 SSE Elgin | Bastrop | (EWX) |
| 4:55 pm | 1.00 | Elgin | Bastrop | (EWX) |
| 5:00 pm | 1.75 | 1 E Elgin | Bastrop | (EWX) |
What NEXRAD radar recorded inside the metro
100 signatures from 4 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; 65 were rated 100% and 34 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 | 37 | 24 | 22 | 17 | 3.50 in | 2:02 pm | 5:16 pm |
| KEWX | 34 | 22 | 17 | 11 | 4.00 in | 2:01 pm | 5:18 pm |
| KFWS | 25 | 18 | 10 | 6 | 3.50 in | 2:00 pm | 4:46 pm |
| KHGX | 4 | 1 | 2 | 0 | 1.25 in | 5:07 pm | 5:23 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 15, 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 Austin when its coordinates fall inside one of the metro's 5 counties (Travis, Williamson, Hays, Bastrop and Caldwell 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.