This alert expired on 15 June 2026 at 16:00 UTC. It is kept here as a record.
It is the 10th strongest of the 38 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 15 at 8:36AM CDT until June 15 at 11:00AM CDT by NWS Austin/San Antonio TX
An estimated 1,627,066 people live within 50 km of this point.
Nearby, since 16 March 2026
- July 16, 2026 · score 76 · 3.9 km
- July 11, 2026 · score 52 · 6.6 km
- May 27, 2026 · score 52 · 16.0 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, at 81 % 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) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 29.6645, -98.7459 |
| Nearest City | San Antonio (37 km) |
| Population Exposed | 1.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-15T13:36:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.7ae30ec693ad0a71c5b6e75e17e642f4 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Maverick, TX; Bandera, TX; Kerr, TX; Bandera, TX; Bexar, TX; Kendall, TX; Medina, TX and 5 more areas |
| Headline | Flash Flood Warning issued June 15 at 8:36AM CDT until June 15 at 11:00AM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-06-15T11:00:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 9 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.7ae30ec693ad0a71c5b6e75e17e642f4b6caa68d.001.1","noaa_urn:oid:2.49.0.1.840.0.14b78e3c551f8acb003b14c1f595826d34623863.001.1","noaa_urn:oid:2.49.0.1.840.0.65f7a456f3d1d369e75c8644ca31e8fced900ae1.001.1","noaa_urn:oid:2.49.0.1.840.0.3c08787037bd4b8043e71750d7692870be0407a2.001.1","noaa_urn:oid:2.49.0.1.840.0.4b506813f7f6664b8d5cb35fdc1d7c241bf03bf5.001.1","noaa_urn:oid:2.49.0.1.840.0.7647a8dd26796cbcdd68f2525f25982d58949b3e.001.1","noaa_urn:oid:2.49.0.1.840.0.5628d4dfaedfce09a3d7e03d46cc88d1b3aa4525.001.1","noaa_urn:oid:2.49.0.1.840.0.04988dd82ee9355e7609a4a007bf046e210a9d8d.001.1","noaa_urn:oid:2.49.0.1.840.0.c31efb212a3181583492e5a5f4039d8ef4bedcc4.001.1"] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 52/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.