Right now
The most recent data we hold from NOAA arrived 2 hours 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 16 March 2026 at 18:00 UTC. It is kept here as a record.
It is the 9th strongest of the 83 detections recorded within 20 km of this point since 9 March 2026. Another comparable one was recorded here earlier the same day. 19 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Watch issued March 16 at 7:59AM EDT until March 16 at 2:00PM EDT by NWS Columbia SC
Urban PEI: 183,772 within a heuristic 50 km radius; not unique people.
Nearby, since 9 March 2026
- September 7, 2026 · score 37 · 0.0 km
- September 6, 2026 · score 37 · 0.0 km
- September 5, 2026 · score 37 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 55 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 | High |
| Calamity Score (ours) | 55 / 100 |
| Legacy data-support index | 0.78/1 |
| Coordinates | 33.0000, -83.6000 |
| Nearest City | Macon (18 km) |
| Urban exposure index (PEI) | 183.8K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-16T12:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.6875483d9bad1c0e755bb49ecb40a29d |
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: 2026-03-16T12:00:00.000Z.
First archived: 2026-03-16T12:02:04.298Z. 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 | Tornado Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Burke, GA; Columbia, GA; McDuffie, GA; Richmond, GA; Aiken, SC; Bamberg, SC; Barnwell, SC; Calhoun, SC; Chesterfield, SC; Clarendon, SC; Kershaw, SC; Lee, SC; Lexington, SC; Orangeburg, SC; Richland, SC; Sumter, SC; Baldwin, GA; Banks, GA; Barrow, GA; Bibb, GA; Butts, GA; Chattahoochee, GA; Clarke, GA; Crawford, GA; Greene, GA; Hancock, GA; Harris, GA; Henry, GA; Jackson, GA; Jasper, GA; Jones, GA; Lamar, GA; Macon, GA; Madison, GA; Marion, GA; Meriwether, GA; Monroe, GA; Morgan, GA; Muscogee, GA; Newton, GA; Oconee, GA; Oglethorpe, GA; Peach, GA; Pike, GA; Putnam, GA; Rockdale, GA; Schley, GA; Spalding, GA; Stewart, GA; Sumter, GA; Talbot, GA; Taliaferro, GA; Taylor, GA; Upson, GA; Walton, GA; Warren, GA; Webster, GA; Wilkes, GA |
| Headline | Tornado Watch issued March 16 at 7:59AM EDT until March 16 at 2:00PM EDT by NWS Columbia SC |
| Expires | 2026-03-16T14:00:00-04:00 |
| SenderName | NWS Columbia SC |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6875483d9bad1c0e755bb49ecb40a29dadda4e14.001.1","noaa_urn:oid:2.49.0.1.840.0.f0cbd5cd7642e1ed25bdf0a170360ee2c556ea87.002.1"] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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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