Right now
The most recent data we hold from NOAA arrived 5 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 16 July 2026 at 11:15 UTC. It is kept here as a record.
No stronger detection stands among the 57 recorded within 20 km of this point since 16 March 2026 — 14 others scored the same. Another comparable one was recorded here earlier the same day. 39 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued July 15 at 2:33PM CDT until July 16 at 6:15AM CDT by NWS Austin/San Antonio TX
Urban PEI: 1,526,656 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- July 20, 2026 · score 52 · 0.0 km
- June 20, 2026 · score 52 · 10.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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) | 52 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 29.2789, -98.9434 |
| Nearest City | San Antonio (47 km) |
| Urban exposure index (PEI) | 1.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-20T01:20:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.e32217eae2c3e361972f8edd920aa1c1 |
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: 2026-07-20T01:20:00.000Z.
First archived: 2026-07-15T20:13:40.464Z. 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 | Expected |
| Certainty | Likely |
| AreaDesc | Blanco, TX; Karnes, TX; Wilson, TX; Bexar, TX; Guadalupe, TX and 14 more areas |
| Headline | Flood Warning issued July 15 at 2:33PM CDT until July 16 at 6:15AM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-07-16T06:15:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 24 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e32217eae2c3e361972f8edd920aa1c1a120fb48.001.1","noaa_urn:oid:2.49.0.1.840.0.d78a5f54a63ef2c351d4ed4ba869f69da585fbda.006.1","noaa_urn:oid:2.49.0.1.840.0.5a65bd29cf284e039ed62c58c2e51f7dbd133f63.001.1","noaa_urn:oid:2.49.0.1.840.0.d78a5f54a63ef2c351d4ed4ba869f69da585fbda.003.1","noaa_urn:oid:2.49.0.1.840.0.d78a5f54a63ef2c351d4ed4ba869f69da585fbda.007.1","noaa_urn:oid:2.49.0.1.840.0.d78a5f54a63ef2c351d4ed4ba869f69da585fbda.005.1","noaa_urn:oid:2.49.0.1.840.0.d78a5f54a63ef2c351d4ed4ba869f69da585fbda.004.1","noaa_urn:oid:2.49.0.1.840.0.d78a5f54a63ef2c351d4ed4ba869f69da585fbda.002.1","noaa_urn:oid:2.49.0.1.840.0.d78a5f54a63ef2c351d4ed4ba869f69da585fbda.001.1","noaa_urn:oid:2.49.0.1.840.0.7abaa5679fee57eafde1220c05d49e7703ac65fd.001.1","noaa_urn:oid:2.49.0.1.840.0.b9b0aad085b1989e81d5604e99f306cfdaedb4b0.002.1","noaa_urn:oid:2.49.0.1.840.0.b9b0aad085b1989e81d5604e99f306cfdaedb4b0.001.1","noaa_urn:oid:2.49.0.1.840.0.2a416417e2d5adf17e4025c1301e970703be165a.007.1","noaa_urn:oid:2.49.0.1.840.0.2c1bf3bdf3d6f66e3df10f53f1fbb4b6abf7eb7b.001.1","noaa_urn:oid:2.49.0.1.840.0.2c1bf3bdf3d6f66e3df10f53f1fbb4b6abf7eb7b.004.1","noaa_urn:oid:2.49.0.1.840.0.2a416417e2d5adf17e4025c1301e970703be165a.005.1","noaa_urn:oid:2.49.0.1.840.0.2a416417e2d5adf17e4025c1301e970703be165a.001.1","noaa_urn:oid:2.49.0.1.840.0.2a416417e2d5adf17e4025c1301e970703be165a.004.1","noaa_urn:oid:2.49.0.1.840.0.2a416417e2d5adf17e4025c1301e970703be165a.006.1","noaa_urn:oid:2.49.0.1.840.0.2c1bf3bdf3d6f66e3df10f53f1fbb4b6abf7eb7b.005.1","noaa_urn:oid:2.49.0.1.840.0.2a416417e2d5adf17e4025c1301e970703be165a.003.1","noaa_urn:oid:2.49.0.1.840.0.2a416417e2d5adf17e4025c1301e970703be165a.002.1","noaa_urn:oid:2.49.0.1.840.0.5f3eabc5dc8d6486672c33f6e8c6b0e8f4a2915a.001.1","noaa_urn:oid:2.49.0.1.840.0.65a3d56c1450351072e46f43c4177d9cd330bdbf.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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