Right now
The most recent data we hold from NOAA arrived 2 hours 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 07:15 UTC. It is kept here as a record.
No stronger detection stands among the 11 recorded within 20 km of this point since 11 May 2026 — 6 others scored the same. Another comparable one was recorded here earlier the same day. 6 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 10 at 11:16PM CDT until May 11 at 2:15AM CDT by NWS Austin/San Antonio TX
Urban PEI: 132,248 within a heuristic 50 km radius; not unique people.
Nearby, since 11 May 2026
- May 11, 2026 · score 43 · 0.0 km
- May 11, 2026 · score 43 · 12.3 km
- May 27, 2026 · score 43 · 23.4 km
How we know
5 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 43 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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 |
| Legacy data-support index | 0.90/1 |
| Coordinates | 30.7773, -97.1634 |
| Nearest City | Taylor (33 km) |
| Urban exposure index (PEI) | 132.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-11T04:16:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.89f4d8a68e6a852cfa37021b2c584870 |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-05-11T04:16:00.000Z.
First archived: 2026-05-11T04:50:44.643Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lee, TX; Bell, TX |
| Headline | Flash Flood Warning issued May 10 at 11:16PM CDT until May 11 at 2:15AM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-05-11T02:15:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.89f4d8a68e6a852cfa37021b2c584870e30d24df.001.1","noaa_urn:oid:2.49.0.1.840.0.f11ee33243de37f9556d98235eb13a27b20244c0.001.1","noaa_urn:oid:2.49.0.1.840.0.e8ca04f4cfc5464903ad545f36832e71e9f184e1.001.1"] |
| 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_G_30.320_-97.720_1778467560000","source":"iem","severity":"low","severityValue":25,"timestamp":1778467560000,"latitude":30.32,"longitude":-97.72},{"id":"iem_G_30.660_-97.380_1778469420000","source":"iem","severity":"low","severityValue":25,"timestamp":1778469420000,"latitude":30.66,"longitude":-97.38},{"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.
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