Right now
The most recent data we hold from NOAA arrived 4 minutes ago, and this point is in it.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 22 September 2026 at 01:15 UTC. It is kept here as a record.
It is the 33rd strongest of the 62 detections recorded within 20 km of this point since 18 April 2026. The last comparable one was on 12 September 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 21 at 7:15PM CDT until September 21 at 8:15PM CDT by NWS Fort Worth TX
Urban PEI: 5,161,069 within a heuristic 50 km radius; not unique people.
Nearby, since 18 April 2026
- April 28, 2026 · score 52 · 4.9 km
- May 25, 2026 · score 52 · 6.4 km
- August 27, 2026 · score 46 · 6.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 32.9080, -97.1840 |
| Nearest City | Colleyville (4 km) |
| Urban exposure index (PEI) | 5.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-22T00:15:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.79c0d1494becaf350e4eb3ac9a1633b6cc07a52d.001.1 |
Physical priority index · v5. 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: 2026-09-22T00:15:00.000Z.
First archived: 2026-09-22T00:19:24.599Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
2026-09-22T00:46:19.289Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
2026-09-22T00:40:59.520Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
2026-09-22T00:35:37.941Z · data_change
Index 46 → 46; severity medium → medium; version 5 → 5.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Tarrant, TX |
| Headline | Severe Thunderstorm Warning issued September 21 at 7:15PM CDT until September 21 at 8:15PM CDT by NWS Fort Worth TX |
| Expires | 2026-09-21T20:15:00-05:00 |
| SenderName | NWS Fort Worth TX |
| HasExactCoords | true |
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.
Review the area, threshold and delivery channel in your account.
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