This alert expired on 27 May 2026 at 04:30 UTC. It is kept here as a record.
It is the 10th strongest of the 21 detections recorded within 20 km of this point since 20 April 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 26 at 8:25PM CDT until May 26 at 11:30PM CDT by NWS Austin/San Antonio TX
An estimated 1,628,373 people live within 50 km of this point.
Nearby, since 20 April 2026
- July 15, 2026 · score 76 · 11.8 km
- June 15, 2026 · score 52 · 15.1 km
- July 11, 2026 · score 52 · 15.3 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 90 % 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) | 52 / 100 |
| Our confidence | 90% |
| Coordinates | 29.8040, -98.7062 |
| Nearest City | Canyon Lake (44 km) |
| Population Exposed | 1.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-27T01:25:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.85c41b1c13488f43d6813d03e1d04f31 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Kendall, TX; Kerr, TX; Atascosa, TX; Burnet, TX; Llano, TX |
| Headline | Flash Flood Warning issued May 26 at 8:25PM CDT until May 26 at 11:30PM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-26T23:30:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.85c41b1c13488f43d6813d03e1d04f3148199c99.001.1","noaa_urn:oid:2.49.0.1.840.0.45ede10e40d2c951cb824b38d300cbcfce31af1a.001.1","noaa_urn:oid:2.49.0.1.840.0.f4801a67f01b1907885706924743eea4b995bc72.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | 1 SW Center Point |
| Iem County | Kerr |
| Iem State | TX |
| Iem Wfo | EWX |
| Iem Remark | half dollar to ping pong size hail south of Center Point. Time estimated via radar. |
| Google News RssFeed | weather |
| Google News SourceName | San Antonio Express-News |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 52/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.