This alert expired on 20 May 2026 at 08:00 UTC. It is kept here as a record.
It is the 5th strongest of the 17 detections recorded within 20 km of this point since 11 May 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 19 at 10:25PM CDT until May 20 at 3:00AM CDT by NWS Austin/San Antonio TX
An estimated 561,287 people live within 50 km of this point.
Nearby, since 11 May 2026
- May 21, 2026 · score 48 · 9.8 km
- May 20, 2026 · score 48 · 16.2 km
- June 6, 2026 · score 52 · 17.4 km
How we know
Confirmed by 17 independent sources, including NOAA.
Our own score for this event is 48 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) | 48 / 100 |
| Our confidence | 91% |
| Coordinates | 30.6807, -97.4367 |
| Nearest City | Taylor (13 km) |
| Population Exposed | 561.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-20T03:25:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.7079133866716ce9a677ecfbcc3bd80d716d9d3a.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Williamson, TX |
| Headline | Flash Flood Warning issued May 19 at 10:25PM CDT until May 20 at 3:00AM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-20T03:00:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 70 |
| Iem Unit | MPH |
| Iem City | 2 ESE Serenada |
| Iem County | Williamson |
| Iem State | TX |
| Iem Wfo | EWX |
| Iem Remark | Amateur Radio report at SH 130 & I-35 under the SH 130 overpass near Georgetown, had street lights and several signs blown over. Raining completely horizontal, about 70MPH. |
| Google News RssFeed | weather |
| Google News SourceName | Austin American-Statesman |
| MergedSources | [{"id":"iem_F_30.810_-98.200_1779243180000","source":"iem","severity":"low","severityValue":25,"timestamp":1779243180000,"latitude":30.81,"longitude":-98.2},{"id":"iem_F_30.910_-98.100_1779241860000","source":"iem","severity":"low","severityValue":25,"timestamp":1779241860000,"latitude":30.91,"longitude":-98.1},{"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_G_30.230_-97.870_1779242700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779242700000,"latitude":30.23,"longitude":-97.87},{"id":"iem_E_30.880_-98.150_1779239460000","source":"iem","severity":"low","severityValue":25,"timestamp":1779239460000,"latitude":30.88,"longitude":-98.15},{"id":"iem_H_30.780_-97.850_1779239940000","source":"iem","severity":"low","severityValue":25,"timestamp":1779239940000,"latitude":30.78,"longitude":-97.85},{"id":"iem_G_30.580_-97.670_1779243900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779243900000,"latitude":30.58,"longitude":-97.67},{"id":"iem_G_30.530_-97.600_1779244500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779244500000,"latitude":30.53,"longitude":-97.6},{"id":"iem_D_30.670_-97.670_1779241860000","source":"iem","severity":"low","severityValue":25,"timestamp":1779241860000,"latitude":30.67,"longitude":-97.67},{"id":"iem_G_30.200_-97.300_1779250080000","source":"iem","severity":"low","severityValue":25,"timestamp":1779250080000,"latitude":30.2,"longitude":-97.3},{"id":"iem_F_30.790_-98.160_1779244260000","source":"iem","severity":"low","severityValue":25,"timestamp":1779244260000,"latitude":30.79,"longitude":-98.16},{"id":"iem_F_30.840_-97.790_1779244380000","source":"iem","severity":"low","severityValue":25,"timestamp":1779244380000,"latitude":30.84,"longitude":-97.79},{"id":"iem_G_30.690_-97.660_1779243120000","source":"iem","severity":"low","severityValue":25,"timestamp":1779243120000,"latitude":30.69,"longitude":-97.66},{"id":"gnews_weather_494231_184","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779233507000,"latitude":30.27,"longitude":-97.74},{"id":"gnews_weather_494232_212","source":"google_news","severity":"medium","severityValue":40,"timestamp":1779236095000,"latitude":30.27,"longitude":-97.74}] |
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 near Taylor?
Calamity.live data shows a weather event with CalamityScore 48/100, near Taylor (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.