Severe Thunderstorm Warning Issued for Bexar and Medina Counties in 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This alert is no longer in effect.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 Bexar County and east central Medina County until 11:00 PM CDT on May 10.
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 Austin/San Antonio TX. The alert is effective from May 10 at 10:16 PM CDT until May 10 at 11:00 PM CDT.
Affected Areas
The warning covers Bexar County and east central Medina County in south central Texas. Locations impacted include San Antonio, Converse, Universal City, Live Oak, Castroville, San Antonio Int Airport, Stinson Municipal Airport, Randolph AFB, Leon Valley, Helotes, Kirby, Alamo Heights, Windcrest, Terrell Hills, Shavano Park, Hollywood Park, Cross Mountain, Olmos Park, Somerset, and China Grove.
What You Should Do
For your protection move to an interior room on the lowest floor of a building.
Expected Conditions
At 10:15 PM CDT, a severe thunderstorm was located over Sea World, or 11 miles northeast of Castroville, moving southeast at 35 mph. Hazards include 60 mph wind gusts and quarter size hail.
Timeline
The alert is in effect from May 10 at 10:16 PM CDT until May 10 at 11:00 PM CDT.
Original source: NOAA Official Notice ↗
Related Weather Alerts
All Weather Alerts →Nationwide notices with similar length or severity timing 8
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 (1,030 characters here).
Similar severity timing
Same severity (high) notices issued closest in time to May 18, 2026.
Frequently Asked Questions
Common questions about this NWS weather alert.