Right now
The most recent data we hold from NOAA arrived 29 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 19 July 2026 at 12:15 UTC. It is kept here as a record.
No stronger detection stands among the 33 recorded within 20 km of this point since 20 May 2026 — 16 others scored the same. The last comparable one was on 15 July 2026. 12 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued July 18 at 8:56PM CDT until July 19 at 7:13AM CDT by NWS Austin/San Antonio TX
Urban PEI: 16,476 within a heuristic 50 km radius; not unique people.
Nearby, since 20 May 2026
- May 27, 2026 · score 34 · 8.5 km
- May 20, 2026 · score 34 · 13.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 28.8634, -99.5230 |
| Nearest City | Uvalde (46 km) |
| Urban exposure index (PEI) | 16.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-20T17:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.fa76ec49eba49f6a5ada0ee5647562f7 |
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: 2026-07-20T17:08:00.000Z.
First archived: 2026-07-19T02:36:11.536Z. 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 | Flood Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Karnes, TX; Goliad, TX; Karnes, TX; La Salle, TX and 6 more areas |
| Headline | Flood Warning issued July 18 at 8:56PM CDT until July 19 at 7:13AM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-07-19T07:15:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fa76ec49eba49f6a5ada0ee5647562f7649d8715.001.1","noaa_urn:oid:2.49.0.1.840.0.146dcf049cd6d2fda2f8b9f6b855952566d066de.001.1","noaa_urn:oid:2.49.0.1.840.0.2cad9519670b0f8fe8d75ee6997b60bbd30455d1.001.1","noaa_urn:oid:2.49.0.1.840.0.bf13df4051e00b519936d936ff9021df7c66b1d7.001.1","noaa_urn:oid:2.49.0.1.840.0.15b4cf67604528613d614154942cc83bcd04a764.001.1","noaa_urn:oid:2.49.0.1.840.0.c0150011947597644ef2f0b8a02c42b95e1fb857.001.1","noaa_urn:oid:2.49.0.1.840.0.730ccb5ba199647ef38f6a8752d985dfb3dd2e5f.001.1","noaa_urn:oid:2.49.0.1.840.0.7befd54b68810625de9bb16c77030fea37810f9c.001.1","noaa_urn:oid:2.49.0.1.840.0.8a842f8d32c18c99d7337692d446963d21602359.001.1","noaa_urn:oid:2.49.0.1.840.0.bba208d77377d1095836a0611deab7608b2fd5c8.001.1","noaa_urn:oid:2.49.0.1.840.0.408840675521c0667dd572cec16f915ee151662d.001.1","noaa_urn:oid:2.49.0.1.840.0.7e04d91074504d3b7b2ee7d87c51bba1c0f76924.001.1","noaa_urn:oid:2.49.0.1.840.0.be7280053c862d289831aa2a27961401559cf2dc.001.1"] |
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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