Right now
The most recent data we hold from NOAA arrived 24 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 20 May 2026 at 02:15 UTC. It is kept here as a record.
It is the 16th strongest of the 24 detections recorded within 20 km of this point since 6 May 2026. The last comparable one was on 7 May 2026. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 19 at 8:49PM CDT until May 19 at 9:15PM CDT by NWS Houston/Galveston TX
Nearby, since 6 May 2026
- May 6, 2026 · score 22 · 2.7 km
- June 15, 2026 · score 43 · 7.0 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 71 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 22 / 100 |
| Our confidence | 71% |
| Coordinates | 30.4148, -98.3722 |
| Nearest City | Leander (53 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-20T01:49:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.99e62a90d71d551e5e16134e4cf03095 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Grimes, TX; Harris, TX; Montgomery, TX; Waller, TX; Williamson, TX; Blanco, TX; Burnet, TX; Gillespie, TX; Hays, TX; Llano, TX; Travis, TX; Williamson, TX and 2 more areas |
| Headline | Severe Thunderstorm Warning issued May 19 at 8:49PM CDT until May 19 at 9:15PM CDT by NWS Houston/Galveston TX |
| Expires | 2026-05-19T21:15:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.99e62a90d71d551e5e16134e4cf030955366abe2.001.1","noaa_urn:oid:2.49.0.1.840.0.fbb6729e6b6231a2da1fbaebd1e1da75db6ed60a.001.1","noaa_urn:oid:2.49.0.1.840.0.156c30b6b62db80949b3d87dafa25591b46d24ac.001.1","noaa_urn:oid:2.49.0.1.840.0.e116b2d429fa705adecefc968651f8330a74ff17.001.1","noaa_urn:oid:2.49.0.1.840.0.ab889590e8d3d73ec9c5cb930cae13b20f76ef54.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | 1 N Enchanted Rock Stat |
| Iem County | Llano |
| Iem State | TX |
| Iem Wfo | EWX |
| Iem Remark | Ping Pong sized hail relayed by EM near Enchanted Rock State Natural Area. |
| Google News RssFeed | weather |
| Google News SourceName | Austin American-Statesman |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
Series begins 8 March 2026. Comparisons refer to that period only. Collection gap: 14-26 August 2026.
This data is aggregated algorithmically from scientific sources. Not a replacement for official emergency warnings.
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