Right now
The most recent data we hold from NOAA arrived 62 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 June 2026 at 18:30 UTC. It is kept here as a record.
No stronger detection stands among the 34 recorded within 20 km of this point since 9 March 2026 — 15 others scored the same. 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 16 at 11:21AM CDT until June 16 at 1:30PM CDT by NWS Houston/Galveston TX
Urban PEI: 96,259 within a heuristic 50 km radius; not unique people.
Nearby, since 9 March 2026
- March 12, 2026 · score 39 · 6.5 km
- June 16, 2026 · score 39 · 13.1 km
- May 30, 2026 · score 22 · 18.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 30.5521, -93.0597 |
| Nearest City | Lake Charles (40 km) |
| Urban exposure index (PEI) | 96.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-16T16:21:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.2e3f2d10231fb7fa67442a8460472954 |
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: 2026-06-16T16:21:00.000Z.
First archived: 2026-06-16T16:22:32.885Z. 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 | Harris, TX; Montgomery, TX; Liberty, TX; Montgomery, TX; San Jacinto, TX; Montgomery, TX and 8 more areas |
| Headline | Flash Flood Warning issued June 16 at 11:21AM CDT until June 16 at 1:30PM CDT by NWS Houston/Galveston TX |
| Expires | 2026-06-16T13:30:00-05:00 |
| SenderName | NWS Houston/Galveston TX |
| HasExactCoords | true |
| MergedCount | 12 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2e3f2d10231fb7fa67442a84604729546d4bba50.001.1","noaa_urn:oid:2.49.0.1.840.0.f9a006ec66ddf0dfdd5b15fe92db401720eeb65e.001.1","noaa_urn:oid:2.49.0.1.840.0.173b3e2793227d3eb94ad1b39c9773cdce998a42.001.1","noaa_urn:oid:2.49.0.1.840.0.5e59ee76b120f83237d257c6eb009bb5d167347b.001.1","noaa_urn:oid:2.49.0.1.840.0.cbe8ee4686ab1e3dbea8cfc7622549daa99310ec.001.1","noaa_urn:oid:2.49.0.1.840.0.010c71ceffd5e913d0b424ba21667e517b13f533.001.1","noaa_urn:oid:2.49.0.1.840.0.d4d6e61c1acefd2f5f1ba7b70a9f213722da793a.001.1","noaa_urn:oid:2.49.0.1.840.0.83696c494ba752b2ffebe76358820f9fa597a905.001.1","noaa_urn:oid:2.49.0.1.840.0.692c753232bda8f76f292edac2c204df908486ad.001.1","noaa_urn:oid:2.49.0.1.840.0.f178e60187550ef5eaf1ab16d906dbc0f138b64b.001.1","noaa_urn:oid:2.49.0.1.840.0.421542a886a67401dd27bc5692f724d17d0444ed.001.1","noaa_urn:oid:2.49.0.1.840.0.3a62bb06450320450e5d15fbbb0ef5da5f0dae6f.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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