Reported by SPC 166 days ago.
It is the 2nd strongest of the 327 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 12 March 2026. 37 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind 60 kt near Philadelphia Internatio, Philadelphia, PA. (PHI)
An estimated 3,640,179 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 28, 2026 · score 46 · 0.9 km
- July 27, 2026 · score 52 · 1.1 km
- July 6, 2026 · score 52 · 4.5 km
How we know
Confirmed by 3 independent sources, including SPC.
Our own score for this event is 52 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 39.8800, -75.2200 |
| Nearest City | Elmwood (5 km) |
| Population Exposed | 3.6M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T03:11:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | 60 |
| Location | Philadelphia Internatio |
| County | Philadelphia |
| State | PA |
| Comments | (PHI) |
| Iem TypeSummary | G |
| Iem Magnitude | 60 |
| Iem Unit | MPH |
| Iem City | Philadelphia Internatio |
| Iem County | Philadelphia |
| Iem State | PA |
| Iem Wfo | PHI |
| Google News RssFeed | weather |
| Google News SourceName | CBS News |
| MergedSources | [{"id":"iem_G_39.880_-75.220_1773717060000","source":"iem","severity":"low","severityValue":25,"timestamp":1773717060000,"latitude":39.88,"longitude":-75.22},{"id":"gnews_weather_492700_157","source":"google_news","severity":"medium","severityValue":40,"timestamp":1773720832000,"latitude":39.95,"longitude":-75.16}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 52/100, near Elmwood (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.