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 04:00 UTC. It is kept here as a record.
It is the 7th strongest of the 130 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 19 May 2026. 41 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued May 19 at 8:21PM CDT until May 19 at 11:00PM CDT by NWS Austin/San Antonio TX
An estimated 389,158 people live within 50 km of this point.
Nearby, since 10 March 2026
- June 23, 2026 · score 43 · 0.0 km
- May 19, 2026 · score 43 · 0.0 km
- August 7, 2026 · score 43 · 0.0 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 91 % 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) | 43 / 100 |
| Our confidence | 91% |
| Coordinates | 31.0000, -97.6000 |
| Nearest City | Harker Heights (11 km) |
| Population Exposed | 389.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-20T01:21:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.86a5b31ce45bc3fc2b5b89a40ade2971 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Edwards, TX; Gillespie, TX; Kerr, TX; Llano, TX; Real, TX; Val Verde, TX; Bastrop, TX; Blanco, TX; Burnet, TX; Hays, TX; Lee, TX; Travis, TX; Williamson, TX; Comal, TX; Kendall, TX and 4 more areas |
| Headline | Severe Thunderstorm Watch issued May 19 at 8:21PM CDT until May 19 at 11:00PM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-19T23:00:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | false |
| MergedCount | 7 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.86a5b31ce45bc3fc2b5b89a40ade2971bf801d61.003.1","noaa_urn:oid:2.49.0.1.840.0.86a5b31ce45bc3fc2b5b89a40ade2971bf801d61.002.1","noaa_urn:oid:2.49.0.1.840.0.86a5b31ce45bc3fc2b5b89a40ade2971bf801d61.001.1","noaa_urn:oid:2.49.0.1.840.0.484202cd8e3dff5e95db136db57eb5642234b8b6.001.1","noaa_urn:oid:2.49.0.1.840.0.c96df3b3a8d04aa68dd0ccf1632bfcc4eddf2114.001.1","noaa_urn:oid:2.49.0.1.840.0.99f260ed2093aaeb87161ec2c21a3ef7082228cc.001.1","noaa_urn:oid:2.49.0.1.840.0.4dcdda8e199b018d40fa1a7a009ff875faaf7a47.001.1"] |
| Iem TypeSummary | D |
| Iem City | 2 NE Georgetown |
| Iem County | Williamson |
| Iem State | TX |
| Iem Wfo | EWX |
| Iem Remark | Amateur Radio Network report of a 12 inch diameter tree snapped at Stadium Drive and North Austin Avenue in Georgetown. |
| MergedSources | [{"id":"iem_H_31.430_-97.680_1779234420000","source":"iem","severity":"low","severityValue":25,"timestamp":1779234420000,"latitude":31.43,"longitude":-97.68},{"id":"iem_H_30.760_-97.500_1779234780000","source":"iem","severity":"low","severityValue":25,"timestamp":1779234780000,"latitude":30.76,"longitude":-97.5},{"id":"iem_H_30.720_-97.440_1779233760000","source":"iem","severity":"low","severityValue":25,"timestamp":1779233760000,"latitude":30.72,"longitude":-97.44},{"id":"iem_H_30.780_-97.850_1779239940000","source":"iem","severity":"low","severityValue":25,"timestamp":1779239940000,"latitude":30.78,"longitude":-97.85},{"id":"iem_D_30.670_-97.670_1779241860000","source":"iem","severity":"low","severityValue":25,"timestamp":1779241860000,"latitude":30.67,"longitude":-97.67}] |
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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