Right now
The most recent data we hold from NOAA arrived 5 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
6 other detections within 20 km in the last 24 hours, the nearest 12 km from here.
This alert expired on 17 March 2026 at 01:15 UTC. It is kept here as a record.
No stronger detection stands among the 124 recorded within 20 km of this point since 17 March 2026 — 8 others scored the same.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued March 16 at 8:45PM EDT until March 16 at 9:15PM EDT by NWS Baltimore MD/Washington DC
An estimated 526,813 people live within 50 km of this point.
Nearby, since 17 March 2026
- March 17, 2026 · score 48 · 3.1 km
- August 10, 2026 · score 48 · 6.5 km
- September 2, 2026 · score 41 · 12.3 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 48 out of 100, at 88 % 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) | 48 / 100 |
| Our confidence | 88% |
| Coordinates | 37.4168, -77.1731 |
| Nearest City | Hopewell (17 km) |
| Population Exposed | 526.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T00:45:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.4cb53a52530853df2f1cda1b6a8890c2 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Charles, MD; Fauquier, VA; King George, VA; Prince William, VA; Spotsylvania, VA; Stafford, VA; City of Fredericksburg, VA; Caroline, VA; Charles City, VA; Chesterfield, VA; Dinwiddie, VA; Essex, VA; Greensville, VA; Hanover, VA; Henrico, VA; James City, VA; King and Queen, VA; King William, VA; New Kent, VA; Prince George, VA; Richmond, VA; Surry, VA; Sussex, VA; Westmoreland, VA; York, VA; City of Colonial Heights, VA; City of Hopewell, VA; City of Petersburg, VA; City of Richmond, VA; City of Williamsburg, VA; District of Columbia, DC; Anne Arundel, MD; Baltimore, MD; Carroll, MD; Charles, MD; Frederick, MD; Howard, MD; Montgomery, MD; Prince Georges, MD; Arlington, VA; Fairfax, VA; Fauquier, VA; Loudoun, VA; Prince William, VA; Stafford, VA; City of Alexandria, VA; City of Fairfax, VA; City of Falls Church, VA; City of Manassas, VA; City of Manassas Park, VA and 2 more areas |
| Headline | Severe Thunderstorm Warning issued March 16 at 8:45PM EDT until March 16 at 9:15PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-03-16T21:15:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4cb53a52530853df2f1cda1b6a8890c21802b036.002.1","noaa_urn:oid:2.49.0.1.840.0.90f69f47c2fe46bcdf5d7bb2c69559e4d17c62df.002.1","noaa_urn:oid:2.49.0.1.840.0.3000d08216b12e3a71a2185b5e554d07ec8f75ed.001.1","noaa_urn:oid:2.49.0.1.840.0.d023fcd4365ebe4b3629137bb27bdc5342f1e3b7.001.1","noaa_urn:oid:2.49.0.1.840.0.08f2495f6c0c687568d138380a039da365de88df.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | 2 WSW Short Pump |
| Spc County | Henrico |
| Spc State | VA |
| Spc Comments | Tree down. Time estimated from radar. (AKQ) |
| MergedSources | [{"id":"spc_wind_37.34_-77.98_201","source":"spc","severity":"medium","severityValue":45,"timestamp":1773705660000,"latitude":37.34,"longitude":-77.98},{"id":"spc_wind_37.68_-77.87_202","source":"spc","severity":"medium","severityValue":45,"timestamp":1773706380000,"latitude":37.68,"longitude":-77.87},{"id":"spc_wind_37.64_-77.65_203","source":"spc","severity":"medium","severityValue":45,"timestamp":1773706800000,"latitude":37.64,"longitude":-77.65}] |
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 Hopewell?
Calamity.live data shows a weather event with CalamityScore 48/100, near Hopewell (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.