This alert expired on 8 August 2026 at 22:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 20 detections recorded within 20 km of this point since 11 March 2026. The last comparable one was on 7 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 8 at 4:18PM CDT until August 8 at 5:15PM CDT by NWS Fort Worth TX
An estimated 59,594 people live within 50 km of this point.
Nearby, since 11 March 2026
- June 3, 2026 · score 39 · 8.9 km
- June 2, 2026 · score 39 · 8.9 km
- July 5, 2026 · score 34 · 15.8 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 39 out of 100, at 85 % 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 | 85% |
| Coordinates | 32.7780, -95.8270 |
| Nearest City | Terrell (43 km) |
| Population Exposed | 59.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-08T21:18:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.93fb6b6eda55dfb0cb276db677ae6e309f00f50b.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Rains, TX; Van Zandt, TX |
| Headline | Severe Thunderstorm Warning issued August 8 at 4:18PM CDT until August 8 at 5:15PM CDT by NWS Fort Worth TX |
| Expires | 2026-08-08T17:15:00-05:00 |
| SenderName | NWS Fort Worth TX |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | 1 N Cumby |
| Iem County | Hopkins |
| Iem State | TX |
| Iem Wfo | FWD |
| Iem Remark | VFD reports multiple large trees downed and blocking several county and FM roads in and around the town of Cumby. |
| MergedSources | [{"id":"iem_D_33.140_-95.840_1786222140000","source":"iem","severity":"low","severityValue":25,"timestamp":1786222140000,"latitude":33.14,"longitude":-95.84}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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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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.