Right now
The most recent data we hold from NOAA arrived 5 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 19 September 2026 at 22:15 UTC. It is kept here as a record.
It is the 20th strongest of the 24 detections recorded within 20 km of this point since 6 May 2026. The last comparable one was on 30 July 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 19 at 4:42PM CDT until September 19 at 5:15PM CDT by NWS Birmingham AL
Urban PEI: 214,140 within a heuristic 50 km radius; not unique people.
Nearby, since 6 May 2026
- July 29, 2026 · score 39 · 18.9 km
- July 30, 2026 · score 39 · 19.1 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 37 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) | 37 / 100 |
| Legacy data-support index | 0.83/1 |
| Coordinates | 32.2108, -85.8043 |
| Nearest City | Troy (47 km) |
| Urban exposure index (PEI) | 214.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-19T21:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.278637705714a091b3f783fa5fb80662838c4107.001.1 |
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: 2026-09-19T21:42:00.000Z.
First archived: 2026-09-19T21:44:45.954Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Tallapoosa, AL; Dale, AL; Henry, AL; Clay, AL; Talladega, AL and 2 more areas |
| Headline | Severe Thunderstorm Warning issued September 19 at 4:42PM CDT until September 19 at 5:15PM CDT by NWS Birmingham AL |
| Expires | 2026-09-19T17:15:00-05:00 |
| SenderName | NWS Birmingham AL |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.278637705714a091b3f783fa5fb80662838c4107.001.1","noaa_urn:oid:2.49.0.1.840.0.4aea3caabeb6c9007af5bc718874d9c8e70f22e9.001.1","noaa_urn:oid:2.49.0.1.840.0.2d396b0b73376684f49d9fc57b8eaf1f8a04546a.001.1","noaa_urn:oid:2.49.0.1.840.0.24f14aeb7cfb36d6bd7630a108945b8b173106ca.001.1","noaa_urn:oid:2.49.0.1.840.0.395ba4e953f9cad06fb9df611368690ba0810607.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 2 WSW Phenix Drag Strip |
| Spc County | Russell |
| Spc State | AL |
| Spc Comments | Trees down along Sandfort Road and adjacent Clark Road. (BMX) |
| MergedSources | [{"id":"spc_wind_32.41_-85.12_8","source":"spc","severity":"medium","severityValue":45,"timestamp":1789846680000,"latitude":32.41,"longitude":-85.12}] |
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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