Hail in San Antonio on Thursday, April 20, 2023
The Storm Prediction Center logged 9 hail reports in San Antonio on Thursday, April 20, 2023, between 6:51 pm and 11:13 pm CDT, in 2 of the metro's 8 counties. The largest was 1.50 inches at 4 SSE Canyon Lake (Comal County) at 11:13 pm.
NOAA's radar hail archive holds no records at all for April 20, 2023 (UTC), anywhere in the country, so radar figures for this date are incomplete. That is a gap in NOAA's processing, not a sign that radar saw no hail.
Where hail was reported
Reports came from 5 places in Bexar and Comal counties, named as the National Weather Service described them.
- Leon Valley 4 reports, up to 1.00 in
- Canyon Lake 2 reports, up to 1.50 in
- Castle Hills 1 report, up to 1.00 in
- Helotes 1 report, up to 1.00 in
- Olmos Park 1 report, up to 1.00 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 |
|---|---|---|---|---|
| 6:51 pm | 1.00 | 1 W Leon Valley | Bexar | QUARTER SIZE HAIL IN LEON VALLEY. (EWX) |
| 6:54 pm | 1.00 | Leon Valley | Bexar | REPORT FROM MPING QUARTER (1.00 IN.). (EWX) |
| 6:55 pm | 1.00 | 2 ESE Helotes | Bexar | FACEBOOK REPORT OF ESTIMATED QUARTER SIZE HAIL WITH A FEW A BIT LARGER. (EWX) |
| 7:00 pm | 1.00 | 1 ESE Leon Valley | Bexar | FACEBOOK REPORT OF ESTIMATED QUARTER SIZE HAIL. (EWX) |
| 7:06 pm | 1.00 | 1 E Leon Valley | Bexar | REPORT FROM MPING QUARTER (1.00 IN.). (EWX) |
| 7:34 pm | 1.00 | 2 SSE Castle Hills | Bexar | PICTURE OF QUARTER SIZE HAIL RELAYED VIA FACEBOOK. (EWX) |
| 7:40 pm | 1.00 | 1 S Olmos Park | Bexar | QUARTER SIZE HAIL AT TRINITY UNIVERSITY. (EWX) |
| 11:01 pm | 1.25 | 3 SE Canyon Lake | Comal | REPORT FROM MPING: HALF DOLLAR (1.25 IN.). (EWX) |
| 11:13 pm | 1.50 | 4 SSE Canyon Lake | Comal | PUBLIC ESTIMATED PING PONG BALL SIZE HAIL JUST SOUTH OF CANYON LAKE OFF FM 2673. (EWX) |
What NEXRAD radar recorded inside the metro
NOAA's radar hail archive holds no records at all for April 20, 2023 (UTC), anywhere in the country, so radar figures for this date are incomplete. That is a gap in NOAA's processing, not a sign that radar saw no hail. The 540 signatures NOAA does hold for this local day are counted below.
| Radar | Signatures | Rated 100% | 1 in or more | 2 in or more | Largest expected | First | Last |
|---|---|---|---|---|---|---|---|
| KGRK | 161 | 64 | 38 | 6 | 2.75 in | 7:04 pm | 11:57 pm |
| KDFX | 151 | 58 | 43 | 6 | 3.00 in | 7:00 pm | 11:56 pm |
| KEWX | 127 | 51 | 45 | 14 | 3.75 in | 7:04 pm | 11:56 pm |
| KCRP | 59 | 31 | 28 | 1 | 2.00 in | 7:01 pm | 11:57 pm |
| KSJT | 42 | 18 | 13 | 4 | 3.25 in | 7:04 pm | 11:56 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 20, 2023
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.