This alert expired on 3 September 2026 at 15:45 UTC. It is kept here as a record.
It is the 7th strongest of the 12 detections recorded within 20 km of this point since 20 June 2026. The last comparable one was on 20 June 2026.
What the source measured
NOAA reported: Flash Flood Warning issued September 3 at 7:40AM CDT until September 3 at 10:45AM CDT by NWS Fort Worth TX
An estimated 18,288 people live within 50 km of this point.
Nearby, since 20 June 2026
- September 3, 2026 · score 28 · 9.3 km
- June 20, 2026 · score 34 · 18.7 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 81 % 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 | 81% |
| Coordinates | 31.4760, -95.6579 |
| Nearest City | Palestine (32 km) |
| Population Exposed | 18.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-03T12:40:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.4d321ac044d1c5924a78b449c4b2f1a1a0bcc2b8.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Freestone, TX; Houston, TX; Trinity, TX |
| Headline | Flash Flood Warning issued September 3 at 7:40AM CDT until September 3 at 10:45AM CDT by NWS Fort Worth TX |
| Expires | 2026-09-03T10:45:00-05:00 |
| SenderName | NWS Fort Worth TX |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4d321ac044d1c5924a78b449c4b2f1a1a0bcc2b8.001.1","noaa_urn:oid:2.49.0.1.840.0.9623a2277e4c27c2196dc67d5d7ceae03af93600.001.1"] |
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.