This alert expired on 3 September 2026 at 17:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 9 detections recorded within 20 km of this point since 23 May 2026. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Flash Flood Warning issued September 3 at 10:17AM CDT until September 3 at 12:45PM CDT by NWS Fort Worth TX
An estimated 40,938 people live within 50 km of this point.
Nearby, since 23 May 2026
- May 23, 2026 · score 34 · 20.1 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 28 out of 100, at 82 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Our confidence | 82% |
| Coordinates | 31.1056, -95.3862 |
| Nearest City | Huntsville (46 km) |
| Population Exposed | 40.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T15:17:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.ec90e733703b617c13761786e8d695bd27284b6e.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Freestone, TX; Liberty, TX; Polk, TX; San Jacinto, TX; Polk, TX and 2 more areas |
| Headline | Flash Flood Warning issued September 3 at 10:17AM CDT until September 3 at 12:45PM CDT by NWS Fort Worth TX |
| Expires | 2026-09-03T12:45:00-05:00 |
| SenderName | NWS Fort Worth TX |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.ec90e733703b617c13761786e8d695bd27284b6e.001.1","noaa_urn:oid:2.49.0.1.840.0.2e4afcacaf55a8bce0d11ea4de5fb76e68deb7ca.001.1","noaa_urn:oid:2.49.0.1.840.0.0b695abd556ac71ce3f643beba05488171daa454.001.1","noaa_urn:oid:2.49.0.1.840.0.f92d2f9d8966fe727f004b655adade541da10c86.001.1","noaa_urn:oid:2.49.0.1.840.0.3a2fd5ab9e5b815b5ed0064131c21e5d8ae1b969.001.1"] |
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 28/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.