Right now
The most recent data we hold from NOAA arrived 2 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 17 May 2026 at 22:36 UTC. It is kept here as a record.
No stronger detection stands among the 13 recorded within 20 km of this point since 12 March 2026 — 8 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 17 at 6:27PM EDT until May 17 at 6:30PM EDT by NWS Jacksonville FL
Nearby, since 12 March 2026
- May 23, 2026 · score 22 · 7.5 km
- March 12, 2026 · score 22 · 16.8 km
- July 11, 2026 · score 22 · 19.5 km
How we know
6 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.68/1 |
| Coordinates | 30.4350, -82.6867 |
| Nearest City | Valdosta (72 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-05-17T22:27:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.b8f9524c4e38d4727973703b07218eb7ae974ea9.001.1 |
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: 2026-05-17T22:27:00.000Z.
First archived: 2026-05-17T22:29:06.953Z. 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 | Columbia, FL; Hamilton, FL |
| Headline | Severe Thunderstorm Warning issued May 17 at 6:27PM EDT until May 17 at 6:30PM EDT by NWS Jacksonville FL |
| Expires | 2026-05-17T18:36:00-04:00 |
| SenderName | NWS Jacksonville FL |
| HasExactCoords | true |
| Iem TypeSummary | R |
| Iem Magnitude | 2.51 |
| Iem Unit | Inch |
| Iem City | 3 E Columbia |
| Iem County | Columbia |
| Iem State | FL |
| Iem Wfo | JAX |
| Iem Remark | Personal Weather Station [Home Station - KFLLAKEC225] reported 2.51 inches of rainfall during the one hour period between 4:44 pm and 5:44pm. |
| MergedSources | [{"id":"iem_G_30.180_-82.580_1779053700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779053700000,"latitude":30.18,"longitude":-82.58},{"id":"iem_H_30.090_-82.680_1779052500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779052500000,"latitude":30.09,"longitude":-82.68},{"id":"iem_G_30.440_-82.790_1779055800000","source":"iem","severity":"low","severityValue":25,"timestamp":1779055800000,"latitude":30.44,"longitude":-82.79},{"id":"iem_H_30.160_-83.040_1779049200000","source":"iem","severity":"low","severityValue":25,"timestamp":1779049200000,"latitude":30.16,"longitude":-83.04},{"id":"iem_R_30.070_-82.650_1779054240000","source":"iem","severity":"low","severityValue":25,"timestamp":1779054240000,"latitude":30.07,"longitude":-82.65}] |
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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