Right now
The most recent data we hold from NOAA arrived 6 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 6 June 2026 at 06:00 UTC. It is kept here as a record.
It is the 11th strongest of the 22 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 5 at 10:11PM CDT until June 6 at 1:00AM CDT by NWS Austin/San Antonio TX
Urban PEI: 1,502,583 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 6, 2026 · score 52 · 0.0 km
- May 11, 2026 · score 52 · 10.9 km
- May 18, 2026 · score 58 · 15.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 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) | 46 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 30.2320, -97.5661 |
| Nearest City | Austin (17 km) |
| Urban exposure index (PEI) | 1.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T03:11:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.bc7b01064d7f1061e0f00a8cdd753bb5 |
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: 2026-06-06T03:11:00.000Z.
First archived: 2026-06-06T03:17:56.208Z. 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 | Burnet, TX; Williamson, TX; Travis, TX; Lavaca, TX |
| Headline | Flash Flood Warning issued June 5 at 10:11PM CDT until June 6 at 1:00AM CDT by NWS Austin/San Antonio TX |
| Expires | 2026-06-06T01:00:00-05:00 |
| SenderName | NWS Austin/San Antonio TX |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bc7b01064d7f1061e0f00a8cdd753bb5be45cd5a.001.1","noaa_urn:oid:2.49.0.1.840.0.48d1a1426507bed6bb83bf44a2283315b90956fb.001.1","noaa_urn:oid:2.49.0.1.840.0.725cccf9fb7eed8187afebe93320717b4eb9fb03.001.1"] |
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.
Review the area, threshold and delivery channel in your account.
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