Right now
The most recent data we hold from NOAA arrived 3 minutes ago, and this point is in it.
One other detection within 20 km in the last 24 hours, <1 km from here.
This alert expired on 12 September 2026 at 00:15 UTC. It is kept here as a record.
It is the 41st strongest of the 77 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 27 August 2026.
What the source measured
NOAA reported: Flash Flood Warning issued September 11 at 4:20PM CDT until September 11 at 7:15PM CDT by NWS Huntsville AL
An estimated 55,437 people live within 50 km of this point.
Nearby, since 10 March 2026
- September 12, 2026 · score 32 · 0.0 km
- March 10, 2026 · score 39 · 7.8 km
- August 9, 2026 · score 43 · 9.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 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) | 32 / 100 |
| Our confidence | 81% |
| Coordinates | 34.3717, -87.3900 |
| Nearest City | Decatur (46 km) |
| Population Exposed | 55.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-11T21:20:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.09f36699283da2f7f1dc7a6d875345dce7408778.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Lawrence, AL |
| Headline | Flash Flood Warning issued September 11 at 4:20PM CDT until September 11 at 7:15PM CDT by NWS Huntsville AL |
| Expires | 2026-09-11T19:15:00-05:00 |
| SenderName | NWS Huntsville AL |
| HasExactCoords | true |
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.
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