Right now
The most recent data we hold from SPC arrived 6 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.
Reported by SPC 2 days ago.
It is the 791st strongest of the 946 detections recorded within 20 km of this point since 10 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind UNK kt near 1 ENE Alexandria, City of Alexandri, VA. Tree down on W Braddock Rd at W Windsor Ave (LWX)
An estimated 4,263,621 people live within 50 km of this point.
Nearby, since 10 March 2026
- March 17, 2026 · score 52 · 1.7 km
- September 4, 2026 · score 46 · 1.7 km
- September 3, 2026 · score 46 · 2.2 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 46 out of 100, at 74 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Our confidence | 74% |
| Coordinates | 38.8200, -77.0700 |
| Nearest City | Alexandria (3 km) |
| Population Exposed | 4.3M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-04T03:44:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 1 ENE Alexandria |
| County | City of Alexandri |
| State | VA |
| Comments | Tree down on W Braddock Rd at W Windsor Ave (LWX) |
| Iem TypeSummary | F |
| Iem City | 2 S Reagan National Aii |
| Iem County | City of Alexandria |
| Iem State | VA |
| Iem Wfo | LWX |
| Iem Remark | Water rescue along GW Parkway near Slaters Lane. Found to be unoccupied vehicle stalled in high water over tires. |
| MergedSources | [{"id":"iem_F_38.820_-77.040_1788496380000","source":"iem","severity":"low","severityValue":25,"timestamp":1788496380000,"latitude":38.82,"longitude":-77.04}] |
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 Alexandria?
Calamity.live data shows a weather event with CalamityScore 46/100, near Alexandria (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.