Severe Thunderstorm Warning Issued for South Central Texas
This alert is no longer in effect.
NOAA issued it on May 18, 2026, 3 months ago. Warnings of this kind stay in effect for hours to a few days, so this page is a historical record of what was issued, not a current warning. For conditions where you are right now, check weather.gov (US), weather.gc.ca (Canada), the Met Office (UK), or the Bureau of Meteorology (Australia).
Areazine synthesizes this NWS weather alert directly from NOAA's official public data feed. See our methodology for full source attribution and refresh cadence.
NWS Austin/San Antonio TX has issued a Severe Thunderstorm Warning for eight counties in south central Texas until midnight CDT, with 60 mph wind gusts and quarter-size hail.
Read this weather record in 30 seconds
- Record type
- Severe Thunderstorm Warning
- Affected area
- South Central Texas
- Issued
- May 18, 2026
- Issuing authority
- NWS Austin/San Antonio TX
Storm notices can cover different combinations of wind, hail, lightning, and rainfall. Use the original notice for the hazards and boundaries attached to this specific record.
Record status: historical. It was issued 3 months ago; use the issuing agency's live warning service for current conditions in South Central Texas.
Alert Details
A Severe Thunderstorm Warning has been issued by the National Weather Service in Austin/San Antonio TX. The alert is effective from 10:54 PM CDT on May 10, 2026, until 12:00 AM CDT on May 11, 2026.
Affected Areas
The warning covers Atascosa County, Bexar County, Dimmit County, Frio County, Karnes County, Medina County, Wilson County, and Zavala County in south central Texas. Specific areas include southeastern Medina County, southern Zavala County, and southern Bexar County. Locations impacted include San Antonio, Schertz, Converse, Pleasanton, Pearsall, Floresville, Crystal City, Carrizo Springs, Devine, Jourdanton, Dilley, Poteet, Kenedy, Karnes City, Poth, Charlotte, Stockdale, Big Wells, Christine, and Kosciusko.
What You Should Do
For your protection, move to an interior room on the lowest floor of a building.
Expected Conditions
At 10:54 PM CDT, severe thunderstorms were located along a line extending from near St. Hedwig to near Derby to near Asherton, moving southeast at 30 mph. Hazards include 60 mph wind gusts and quarter size hail (1.00 inch). Hail damage to vehicles is expected, along with wind damage to roofs, siding, and trees.
Timeline
The alert is in effect until midnight CDT on May 11, 2026.
Original source: NOAA Official Notice ↗
Related Weather Alerts
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Two Areazine-derived peer sets for this NWS weather alert: nearest notices by body length and by same severity near the same agency date. Peers come from other categories so they are not the same-feed Related list above.
Similar body length
Nearest notices by article body length (1,265 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 18, 2026.
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