Right now
The most recent data we hold from NOAA arrived 4 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 16 March 2026 at 11:00 UTC. It is kept here as a record.
It is the 21st strongest of the 129 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 Watch issued March 16 at 3:47AM EDT until March 16 at 7:00AM EDT by NWS Jackson KY
Urban PEI: 733,258 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- September 4, 2026 · score 41 · 0.0 km
- August 12, 2026 · score 48 · 0.0 km
- August 11, 2026 · score 48 · 0.0 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 48 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) | 48 / 100 |
| Legacy data-support index | 0.84/1 |
| Coordinates | 37.8000, -84.3000 |
| Nearest City | Richmond (6 km) |
| Urban exposure index (PEI) | 733.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T07:47:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.8a64e0f29498f9bf8bec916091fbb10b |
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: 2026-03-16T07:47:00.000Z.
First archived: 2026-03-16T08:32:29.366Z. 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 Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Bell, KY; Breathitt, KY; Elliott, KY; Floyd, KY; Harlan, KY; Johnson, KY; Knott, KY; Leslie, KY; Letcher, KY; Magoffin, KY; Martin, KY; Morgan, KY; Perry, KY; Pike, KY; Lawrence, KY; Dickenson, VA; Mingo, WV; Wayne, WV |
| Headline | Severe Thunderstorm Watch issued March 16 at 3:47AM EDT until March 16 at 7:00AM EDT by NWS Jackson KY |
| Expires | 2026-03-16T07:00:00-04:00 |
| SenderName | NWS Jackson KY |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.8a64e0f29498f9bf8bec916091fbb10bdbeae89d.002.1","noaa_urn:oid:2.49.0.1.840.0.84cc5811c995ce5d24ad0f9c0ca533816e222602.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 57 |
| Iem Unit | MPH |
| Iem City | 1 W Stanton |
| Iem County | Powell |
| Iem State | KY |
| Iem Wfo | JKL |
| Iem Remark | Gust measured by the KY Mesonet in Powell County. |
| MergedSources | [{"id":"iem_G_37.850_-83.880_1773644100000","source":"iem","severity":"low","severityValue":25,"timestamp":1773644100000,"latitude":37.85,"longitude":-83.88}] |
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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