Right now
The most recent data we hold from NOAA arrived 31 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 1 June 2026 at 18:50 UTC. It is kept here as a record.
It is the 14th strongest of the 25 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 9 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 1 at 1:41PM CDT until June 1 at 1:45PM CDT by NWS Birmingham AL
Urban PEI: 15,350 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- August 7, 2026 · score 34 · 8.1 km
- August 9, 2026 · score 39 · 13.0 km
- May 24, 2026 · score 39 · 15.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 34 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 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) | 34 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 34.0909, -86.9893 |
| Nearest City | Cullman (16 km) |
| Urban exposure index (PEI) | 15.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-01T18:41:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.35d2e97936ea59f3d71018f2e984ad54 |
Physical priority index · v1. 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: 2026-06-01T18:41:00.000Z.
First archived: 2026-06-01T18:45:07.252Z. 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 | Marion, AL; DeKalb, AL; Marshall, AL; Winston, AL and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 1 at 1:41PM CDT until June 1 at 1:45PM CDT by NWS Birmingham AL |
| Expires | 2026-06-01T13:50:00-05:00 |
| SenderName | NWS Birmingham AL |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.35d2e97936ea59f3d71018f2e984ad5478e35472.001.1","noaa_urn:oid:2.49.0.1.840.0.62c003a0cce0f931198d6c8369a1dcac06850e70.001.1","noaa_urn:oid:2.49.0.1.840.0.ee8c811a73d24a955279c5fb5ce72627bf3f2089.001.1","noaa_urn:oid:2.49.0.1.840.0.2c78ebbc409efda77758eec60e36cf2cbdd9cc2c.001.1","noaa_urn:oid:2.49.0.1.840.0.818d2b270f695cb9c61e2b2bb4ee50f1bdd69494.001.1","noaa_urn:oid:2.49.0.1.840.0.b1e4bdfd696729c0084731fcccb63be5b1e729f8.001.1","noaa_urn:oid:2.49.0.1.840.0.9006bb1384f4469cc15375112f12f951dffcb052.001.1","noaa_urn:oid:2.49.0.1.840.0.f090fd95fdcb09cb23a44d745bd8b168a67e2336.002.1"] |
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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