This alert expired on 21 May 2026 at 16:15 UTC. It is kept here as a record.
No stronger detection stands among the 17 recorded within 20 km of this point since 1 May 2026 — 8 others scored the same. The last comparable one was on 1 May 2026.
What the source measured
NOAA reported: Flash Flood Warning issued May 21 at 8:10AM CDT until May 21 at 11:15AM CDT by NWS Corpus Christi TX
An estimated 67,574 people live within 50 km of this point.
Nearby, since 1 May 2026
- June 21, 2026 · score 39 · 17.3 km
- August 28, 2026 · score 39 · 18.7 km
- June 19, 2026 · score 39 · 21.3 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 91 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 39 / 100 |
| Our confidence | 91% |
| Coordinates | 28.5865, -96.8813 |
| Nearest City | Victoria (27 km) |
| Population Exposed | 67.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-21T13:10:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.e3a271d2adad97e5a466de7750bdc4fe |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Goliad, TX; Refugio, TX; Victoria, TX; Aransas, TX; Calhoun, TX; Refugio, TX; Victoria, TX |
| Headline | Flash Flood Warning issued May 21 at 8:10AM CDT until May 21 at 11:15AM CDT by NWS Corpus Christi TX |
| Expires | 2026-05-21T11:15:00-05:00 |
| SenderName | NWS Corpus Christi TX |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e3a271d2adad97e5a466de7750bdc4fe7529aa44.001.1","noaa_urn:oid:2.49.0.1.840.0.c7adaf319372dd582ab4eb2c17c38fb2a7351116.001.1"] |
| Iem TypeSummary | F |
| Iem City | 3 SSW Victoria |
| Iem County | Victoria |
| Iem State | TX |
| Iem Wfo | CRP |
| Iem Remark | Numerous roads flooded with stranded vehicles on the south side of town. |
| MergedSources | [{"id":"iem_M_28.080_-97.050_1779364440000","source":"iem","severity":"low","severityValue":25,"timestamp":1779364440000,"latitude":28.08,"longitude":-97.05},{"id":"iem_F_28.550_-96.520_1779363000000","source":"iem","severity":"low","severityValue":25,"timestamp":1779363000000,"latitude":28.55,"longitude":-96.52},{"id":"iem_F_28.780_-97.000_1779367500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779367500000,"latitude":28.78,"longitude":-97}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 39/100, near Victoria (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.