Alert archive / Texas / Severe Thunderstorm Warnings in 2025
Severe Thunderstorm Warning 163, NWS Austin/San Antonio, TX
NWS Austin/San Antonio, TX issued this severe thunderstorm warning at May 18, 2025, 12:31 PM CDT for Gillespie County, Texas. It was in force for 29 min. No storm report in the archive falls inside the area while it was in force.
The area
The counties it named.
The facts
- Issued
- May 18, 2025, 12:31 PM CDT (17:31 UTC)
- Expired
- May 18, 2025, 1:00 PM CDT
- In force
- 29 min
- Issued by
- NWS Austin/San Antonio, TX
- Area
- Storm-based polygon
- Hail
- 1.0 in
- Wind
- 60.0 mph
County Gillespie County, TX
The radar
The Austin/San Antonio radar (KEWX), 112 km from the middle of the area, began a volume at 17:33 UTC, the scan nearest the moment this went out.
Open the radar archive at this moment
The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.
The nearest sounding before it
Fort Worth, TX (KFWD), launched 12:00Z, 5.5 hours before the alert went out and 320 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 2434 J/kg
- Mixed-layer CIN
- -259 J/kg
- Mixed-layer LCL
- 789 m above ground
- 0-6 km bulk shear
- 36 kt
- 0-1 km storm-relative helicity
- 133 m²/s²
- 0-3 km storm-relative helicity
- 138 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 1.4
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Austin/San Antonio, TX wrote its last area forecast discussion before this severe thunderstorm warning went out at May 17, 6:15 PM CDT, 18 hours 16 minutes earlier.
Area forecast discussion, May 17, 6:15 PM CDT, 18 hours 16 minutes before
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</html>The office that day
Everything else NWS Austin/San Antonio, TX issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 17, 9:44 PM CDT | Severe Thunderstorm Warning | EWX | Maverick | 21 min |
| May 17, 10:09 PM CDT | Special Weather Statement | EWX | Kinney | 51 min |
| May 17, 10:24 PM CDT | Special Weather Statement | EWX | Kinney | 36 min |
| May 17, 10:32 PM CDT | Severe Thunderstorm Warning | EWX | Kinney, Val Verde | 16 min |
| May 18, 12:50 PM CDT | Special Weather Statement | EWX | Llano | 40 min |
| May 18, 1:23 PM CDT | Special Weather Statement | EWX | Burnet | 52 min |
Nearby
Severe Thunderstorm Warnings in Texas, 2025Every severe thunderstorm warning in 2025
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.