Right now
The most recent data we hold from NOAA arrived 19 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 March 2026 at 03:15 UTC. It is kept here as a record.
It is the 2nd strongest of the 211 detections recorded within 20 km of this point since 11 March 2026. Another comparable one was recorded here earlier the same day. 131 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued March 16 at 10:55PM EDT until March 16 at 11:15PM EDT by NWS Mount Holly NJ
An estimated 39,403 people live within 50 km of this point.
Nearby, since 11 March 2026
- March 17, 2026 · score 63 · 9.3 km
- July 27, 2026 · score 43 · 11.8 km
- August 27, 2026 · score 34 · 12.1 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 58 out of 100, at 83 % 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 | Critical |
| Calamity Score (ours) | 58 / 100 |
| Our confidence | 83% |
| Coordinates | 38.9912, -75.3600 |
| Nearest City | Dover (23 km) |
| Population Exposed | 39.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T02:55:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.71d32575c2dee0e474d174e4d4a742fa05db2c00.001.1 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kent, DE |
| Headline | Tornado Warning issued March 16 at 10:55PM EDT until March 16 at 11:15PM EDT by NWS Mount Holly NJ |
| Expires | 2026-03-16T23:15:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | Greensboro |
| Spc County | Caroline |
| Spc State | MD |
| Spc Comments | Significant tree damage. Time estimated from radar. (PHI) |
| MergedSources | [{"id":"spc_wind_38.98_-75.80_258","source":"spc","severity":"medium","severityValue":45,"timestamp":1773714420000,"latitude":38.98,"longitude":-75.8}] |
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.
Want to know when something happens near Dover?
Calamity.live data shows a weather event with CalamityScore 58/100, near Dover (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.