Right now
The most recent data we hold from NOAA arrived 7 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 03:00 UTC. It is kept here as a record.
No stronger detection stands among the 278 recorded within 20 km of this point since 11 March 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. 56 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued March 16 at 10:37PM EDT until March 16 at 11:00PM EDT by NWS Mount Holly NJ
An estimated 76,392 people live within 50 km of this point.
Nearby, since 11 March 2026
- August 27, 2026 · score 34 · 10.6 km
- August 8, 2026 · score 34 · 10.6 km
- July 22, 2026 · score 46 · 10.6 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 63 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) | 63 / 100 |
| Our confidence | 83% |
| Coordinates | 39.0263, -75.6183 |
| Nearest City | Dover (17 km) |
| Population Exposed | 76.4K within 50 km |
| Impact Tier | severe |
| Timestamp | 2026-03-17T02:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.5c5bbc43cbc3e524a9f4d9f7900da360 |
Score Breakdown
Technical Details
| Event | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Kent, DE; Caroline, MD |
| Headline | Tornado Warning issued March 16 at 10:37PM EDT until March 16 at 11:00PM EDT by NWS Mount Holly NJ |
| Expires | 2026-03-16T23:00:00-04:00 |
| SenderName | NWS Mount Holly NJ |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5c5bbc43cbc3e524a9f4d9f7900da360c8a3fe8c.001.1","noaa_urn:oid:2.49.0.1.840.0.4ca32556ed8457a433e278f57c44e1f105aa7b9e.001.1"] |
| Spc ReportType | wind |
| Spc Speed | 58 |
| Spc Location | 4 SSW Chester |
| Spc County | Queen Anne's |
| Spc State | MD |
| Spc Comments | Wunderground station KMDSTEVE109. (PHI) |
| MergedSources | [{"id":"spc_wind_38.92_-76.32_247","source":"spc","severity":"medium","severityValue":45,"timestamp":1773712740000,"latitude":38.92,"longitude":-76.32}] |
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 63/100, near Dover (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.