Right now
The most recent data we hold from NOAA arrived 4 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 11 May 2026 at 07:20 UTC. It is kept here as a record.
No stronger detection stands among the 11 recorded within 20 km of this point since 2 April 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 11 at 2:10AM CDT until May 11 at 2:15AM CDT by NWS Austin/San Antonio TX
An estimated 16,579 people live within 50 km of this point.
Nearby, since 2 April 2026
- May 20, 2026 · score 34 · 17.6 km
How we know
Confirmed by 5 independent sources, including NOAA.
Our own score for this event is 34 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) | 34 / 100 |
| Our confidence | 90% |
| Coordinates | 30.2790, -96.7348 |
| Nearest City | Brenham (34 km) |
| Population Exposed | 16.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-11T07:10:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.deb403ac25a724d53510dab5ecca91eaffa29e63.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lee, TX |
| Headline | Flash Flood Warning issued May 11 at 2:10AM CDT until May 11 at 2:15AM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-11T02:20:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| Iem TypeSummary | E |
| Iem City | 1 SW Rockdale |
| Iem County | Milam |
| Iem State | TX |
| Iem Wfo | FWD |
| Iem Remark | High water reported on Hwy 79 at Childress Drive. |
| MergedSources | [{"id":"iem_H_30.160_-96.400_1778477040000","source":"iem","severity":"low","severityValue":25,"timestamp":1778477040000,"latitude":30.16,"longitude":-96.4},{"id":"iem_D_30.290_-96.490_1778474640000","source":"iem","severity":"low","severityValue":25,"timestamp":1778474640000,"latitude":30.29,"longitude":-96.49},{"id":"iem_F_30.660_-97.000_1778472840000","source":"iem","severity":"low","severityValue":25,"timestamp":1778472840000,"latitude":30.66,"longitude":-97},{"id":"iem_E_30.650_-97.020_1778471280000","source":"iem","severity":"low","severityValue":25,"timestamp":1778471280000,"latitude":30.65,"longitude":-97.02}] |
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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.