Right now
The most recent data we hold from NOAA arrived 10 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 04:00 UTC. It is kept here as a record.
It is the 3rd strongest of the 220 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued March 16 at 10:06PM EDT until March 17 at 12:00AM EDT by NWS Baltimore MD/Washington DC
An estimated 119,959 people live within 50 km of this point.
Nearby, since 17 March 2026
- May 20, 2026 · score 43 · 5.0 km
- May 27, 2026 · score 43 · 11.8 km
- July 28, 2026 · score 67 · 12.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 80 % 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 | Medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 80% |
| Coordinates | 39.2167, -75.7000 |
| Nearest City | Dover (17 km) |
| Population Exposed | 120.0K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T02:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.2bb8214338aa35bca2c5b7a4bdfd43ca |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Chesapeake Bay from Pooles Island to Sandy Point MD; Chesapeake Bay from Sandy Point to North Beach MD; Chesapeake Bay from North Beach to Drum Point MD; Chesapeake Bay from Drum Point MD to Smith Point VA; Chester River to Queenstown MD; Eastern Bay; Choptank River to Cambridge MD and the Little Choptank River; Patuxent River to Broomes Island MD; Tangier Sound and the inland waters surrounding Bloodsworth Island; Dorchester, MD; Somerset, MD; Wicomico, MD; Worcester, MD; Bertie, NC; Camden, NC; Chowan, NC; Currituck, NC; Gates, NC; Hertford, NC; Pasquotank, NC; Perquimans, NC; Accomack, VA; Charles City, VA; Essex, VA; Gloucester, VA; Isle of Wight, VA; James City, VA; King and Queen, VA; King William, VA; Lancaster, VA; Mathews, VA; Middlesex, VA; New Kent, VA; Northampton, VA; Northumberland, VA; Prince George, VA; Richmond, VA; Southampton, VA; Surry, VA; Sussex, VA; Westmoreland, VA; York, VA; City of Chesapeake, VA; City of Franklin, VA; City of Hampton, VA; City of Hopewell, VA; City of Newport News, VA; City of Norfolk, VA; City of Poquoson, VA; City of Portsmouth, VA; City of Suffolk, VA; City of Virginia Beach, VA; City of Williamsburg, VA; Chesapeake Bay from Smith Point to Windmill Point VA; Chesapeake Bay from Windmill Point to New Point Comfort VA; Chesapeake Bay from New Point Comfort to Little Creek VA; Currituck Sound; Chesapeake Bay from Little Creek VA to Cape Henry VA including the Chesapeake Bay Bridge Tunnel; Rappahannock River from Urbanna to Windmill Point; York River; James River from Jamestown to the James River Bridge; James River from James River Bridge to Hampton Roads Bridge-Tunnel; Coastal waters from Fenwick Island DE to Chincoteague VA out 20 nm; Coastal waters from Chincoteague to Parramore Island VA out 20 nm; Coastal waters from Parramore Island to Cape Charles Light VA out 20 nm; Coastal Waters from Cape Charles Light to Virginia-North Carolina border out to 20 nm; Coastal waters from NC VA border to Currituck Beach Light NC out 20 nm and 3 more areas |
| Headline | Severe Thunderstorm Watch issued March 16 at 10:06PM EDT until March 17 at 12:00AM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-03-17T00:00:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | false |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2bb8214338aa35bca2c5b7a4bdfd43ca9be16503.003.1","noaa_urn:oid:2.49.0.1.840.0.bfad7355a3b8233c99877e674e41cd58c0b9b576.002.1","noaa_urn:oid:2.49.0.1.840.0.bfad7355a3b8233c99877e674e41cd58c0b9b576.003.1","noaa_urn:oid:2.49.0.1.840.0.3e3e30728cb43808436e4002da6679da1a5ff554.003.1","noaa_urn:oid:2.49.0.1.840.0.3e3e30728cb43808436e4002da6679da1a5ff554.002.1","noaa_urn:oid:2.49.0.1.840.0.3e3e30728cb43808436e4002da6679da1a5ff554.001.1"] |
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.
Want to know when something happens near Dover?
Calamity.live data shows a weather event with CalamityScore 43/100, near Dover (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.