Right now
The most recent data we hold from NOAA arrived 6 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.
It is the 5th strongest of the 13 detections recorded within 20 km of this point since 23 May 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued June 16 at 11:08AM CDT until June 16 at 1:30PM CDT by NWS Houston/Galveston TX
An estimated 96,259 people live within 50 km of this point.
Nearby, since 23 May 2026
- June 3, 2026 · score 34 · 11.3 km
- June 2, 2026 · score 34 · 11.3 km
- July 6, 2026 · score 43 · 12.0 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, 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) | 39 / 100 |
| Our confidence | 81% |
| Coordinates | 30.5452, -93.3834 |
| Nearest City | Sulphur (34 km) |
| Population Exposed | 96.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-16T16:08:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.f9a006ec66ddf0dfdd5b15fe92db4017 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Liberty, TX; Montgomery, TX; San Jacinto, TX; Montgomery, TX; Harris, TX; Montgomery, TX; Waller, TX and 8 more areas |
| Headline | Flash Flood Warning issued June 16 at 11:08AM 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 | 11 |
| MergedIds | ["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:2.49.0.1.840.0.36030fc7bc6fe669b0f158d80c694633d5391f49.001.1","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:2.49.0.1.840.0.3a62bb06450320450e5d15fbbb0ef5da5f0dae6f.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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.