Right now
The most recent data we hold from NOAA arrived 28 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 15 June 2026 at 07:45 UTC. It is kept here as a record.
It is the 7th strongest of the 19 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 14 at 11:42PM CDT until June 15 at 2:45AM CDT by NWS Austin/San Antonio TX
Urban PEI: 392,339 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 15, 2026 · score 43 · 5.1 km
- May 7, 2026 · score 45 · 15.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 | 0.81/1 |
| Coordinates | 30.8301, -98.1193 |
| Nearest City | Leander (38 km) |
| Urban exposure index (PEI) | 392.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-15T04:42:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.00362974bb5ab3db979e6ca33b8e7d68 |
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: 2026-06-15T04:42:00.000Z.
First archived: 2026-06-15T05:17:24.698Z. 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 | Blanco, TX; Burnet, TX; Llano, TX; Gillespie, TX; Milam, TX and 8 more areas |
| Headline | Flash Flood Warning issued June 14 at 11:42PM CDT until June 15 at 2:45AM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-06-15T02:45:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 11 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.00362974bb5ab3db979e6ca33b8e7d68c0e51c4c.001.1","noaa_urn:oid:2.49.0.1.840.0.456118ca96540e7961b3694abf5bd7686c26ffc1.001.1","noaa_urn:oid:2.49.0.1.840.0.ab44cc8049fa0ef24582b95b9ac235c1431e8fd9.001.1","noaa_urn:oid:2.49.0.1.840.0.9445425ccb4e6f55c98ade1de8a83f2652d3c066.001.1","noaa_urn:oid:2.49.0.1.840.0.e56608f3a84a9670c7f7a0d89675265b4797c678.001.1","noaa_urn:oid:2.49.0.1.840.0.d7c58beec26df9fce6cc1ba06004aef584f5dc9d.001.1","noaa_urn:oid:2.49.0.1.840.0.e7f4f5ac3e3387300a4e2ee7a30b49d9f555faf2.001.1","noaa_urn:oid:2.49.0.1.840.0.ef1018c779146bdce452b7417c93cf15aa92db41.001.1","noaa_urn:oid:2.49.0.1.840.0.6d896ae5125bf1eea7d010cf62848be6dfaf8520.001.1","noaa_urn:oid:2.49.0.1.840.0.654c9fc7ad9f50352c054f1323ccecd1495a54c3.001.1","noaa_urn:oid:2.49.0.1.840.0.729e58c791abf7639092aa881a53866325412a40.001.1"] |
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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