September 11, 2026 Storm Near San Antonio, TX: Reported Hail and Peak Gusts

On September 11, 2026, storm reports placed hail up to 2.50 in. (tennis ball size) and wind gusts up to 60 mph within 25 miles of San Antonio, Texas. 6 reports and station readings meet National Weather Service severe criteria: hail 1.00 in. or larger, or a gust of 58 mph or more.

Hail reports near San Antonio on Sep 11, 2026

5 hail reports fall within 25 miles of the San Antonio city center on Sep 11, 2026. The closest value meeting NWS severe criteria came from 3 ENE Kirby, 11.1 miles east of San Antonio: 1.50 in. hail (ping pong ball size).

  • 2.50 in. hail (tennis ball size) — 3 SE Converse, 14.8 mi E — NWS Local Storm Report (Public, NWS office EWX) — meets NWS severe criteria
  • 1.75 in. hail (golf ball size) — 4 SSE Converse, 14.7 mi E — NWS Local Storm Report (Public, NWS office EWX) — meets NWS severe criteria
  • 1.50 in. hail (ping pong ball size) — 3 ENE Kirby, 11.1 mi E — NWS Local Storm Report (Public, NWS office EWX) — meets NWS severe criteria
  • 1.00 in. hail (quarter size) — 1 WSW China Grove, 11.1 mi SE — NWS Local Storm Report (Broadcast Media, NWS office EWX) — meets NWS severe criteria
  • 1.00 in. hail (quarter size) — 2 NE Saint Hedwig, 20.8 mi E — NWS Local Storm Report (Trained Spotter, NWS office EWX) — meets NWS severe criteria

Measured station gusts near San Antonio

1 airport weather station (ASOS/AWOS) within 25 miles of San Antonio logged a peak gust of 50 mph or more on September 11, 2026. These are instrument measurements from the NWS and FAA observing network; times are local.

  • Randolph AFB (RND): 60 mph at 10:04 PM CDT — 15.4 mi E of San Antonio — meets NWS severe criteria

What the Sep 11, 2026 numbers mean

The National Weather Service defines a severe thunderstorm as one that produces hail at least 1 inch in diameter, winds of at least 58 mph, or a tornado (NWS glossary). The same 58 mph gust mark triggers an NWS High Wind Warning for wind outside thunderstorms. The largest hail reported near San Antonio that day, 2.50 in., meets the NWS hail criterion. The strongest gust, 60 mph, meets the NWS wind criterion.

StormAuditor also uses lower screening thresholds — hail 0.75 in. and wind 45 mph — to flag dates worth researching at an address. Screening thresholds are not NWS severe criteria. Hail sizes compare to everyday objects in the Hail Size Guide; gust speeds are explained in the Wind Speed Guide.

Check your San Antonio address for Sep 11, 2026

Storm reports are points on a map; a property sits somewhere between them. Run the Free Report Snapshot for any San Antonio address: a free YES/NO on whether the public record shows estimated wind of 45 mph or more or hail of 0.75 in. or larger at the property itself. Those are StormAuditor screening thresholds.

For the numbers, the Single Weather Report ($2.99) lists the estimated peak gust and estimated maximum hail size for every qualifying storm date at one address, including September 11, 2026 when the estimate there clears the screening thresholds. The Audit Report shows the evidence and arithmetic behind the estimate for a single date.

Other Texas cities with NWS severe reports on Sep 11, 2026

15 other cities in Texas had a report meeting NWS severe criteria within 25 miles the same day:

More storm days near San Antonio and in Texas

How these numbers are counted

This page and the San Antonio city page share one set of definitions:

  • This page (NWS severe): Every NWS hail and wind report within 25 miles of San Antonio that day (StormAuditor records reports from hail 0.50 in. and wind 40 mph), plus airport weather-station gusts of 50 mph or more. The page exists because at least one report or station gust met NWS severe criteria (hail 1.00 in.+ or wind 58 mph+), at least two separate observations were logged, and the day ranks among the most significant.
  • Each observation counts once: A storm report that relays an airport weather station's reading (the same station, the same gust and the same time) counts once, as the station reading. Reports merge only when they are copies of one report: the identical report repeated, or the same report arriving through another feed (SPC or NCEI). Different reports from the same spot, such as two hail sizes reported at one place, count separately.
  • San Antonio storm-day table: The city page lists storm days: hail 0.75 in.+ or wind 45 mph+ within 25 miles in the last 12 months (StormAuditor screening thresholds; reports and station gusts, never warnings alone). When this date is in that table, it shows the same largest hail and strongest gust as this page; a value below the screening thresholds shows as a dash.
  • Events (12-month counts): The San Antonio city page also counts events, which include NWS warnings. Events measure how busy the area was, not whether a storm hit, so they are not compared with the report counts here.

Full method: Methodology and Data Sources.

Sources for this page

Reports come from NWS Local Storm Reports; station gusts come from ASOS/AWOS airport observations. StormAuditor merges copies of the same report that arrive through more than one feed, counts a storm report that relays an airport station's reading once, as the station reading, measures each distance from the San Antonio city center, and compiled this record on October 7, 2026. See Data Sources and Methodology.

Guides for reading this data

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