Reported by SPC 171 days ago.
It is the 72nd strongest of the 214 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 56 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind UNK kt near Saint Leonard, Calvert, MD. Tree down near the 1000 block of Calvert Beach Road. (LWX)
An estimated 208,814 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 18, 2026 · score 43 · 2.8 km
- July 9, 2026 · score 43 · 3.1 km
- July 28, 2026 · score 43 · 9.9 km
How we know
Confirmed by 2 independent sources, including SPC.
Our own score for this event is 43 out of 100, at 78 % 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 | 78% |
| Coordinates | 38.4700, -76.5000 |
| Nearest City | St. Charles (40 km) |
| Population Exposed | 208.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T01:44:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | Saint Leonard |
| County | Calvert |
| State | MD |
| Comments | Tree down near the 1000 block of Calvert Beach Road. (LWX) |
| Iem TypeSummary | D |
| Iem City | Saint Leonard |
| Iem County | Calvert |
| Iem State | MD |
| Iem Wfo | LWX |
| Iem Remark | Tree down near the 1000 block of Calvert Beach Road. |
| MergedSources | [{"id":"iem_D_38.470_-76.500_1773711840000","source":"iem","severity":"low","severityValue":25,"timestamp":1773711840000,"latitude":38.47,"longitude":-76.5}] |
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 in this area?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.