Right now
The most recent data we hold from NOAA arrived 23 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 26 May 2026 at 04:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 63 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 25 May 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flash Flood Warning issued May 25 at 9:52PM EDT until May 26 at 12:45AM EDT by NWS Columbia SC
An estimated 161,391 people live within 50 km of this point.
Nearby, since 12 March 2026
- May 26, 2026 · score 43 · 0.0 km
- May 23, 2026 · score 43 · 1.2 km
- June 18, 2026 · score 43 · 3.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 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 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) | 43 / 100 |
| Our confidence | 81% |
| Coordinates | 33.4250, -82.0813 |
| Nearest City | Martinez (11 km) |
| Population Exposed | 161.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-26T01:52:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.7d5db6159153165e7f22dcc238df99186dbe4a68.001.1 |
Score Breakdown
Technical Details
| Event | Flash Flood Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Columbia, GA; Richmond, GA |
| Headline | Flash Flood Warning issued May 25 at 9:52PM EDT until May 26 at 12:45AM EDT by NWS Columbia SC |
| Expires | 2026-05-26T00:45:00-04:00 |
| SenderName | NWS Columbia SC |
| 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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