Reported by SPC 2 days ago.
It is the 3rd strongest of the 87 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day.
What the source measured
SPC reported: Wind UNK kt near 1 SSE Colonial Park, Dauphin, PA. Multiple trees down. (CTP)
An estimated 198,191 people live within 50 km of this point.
Nearby, since 12 March 2026
- August 7, 2026 · score 43 · 4.9 km
- March 17, 2026 · score 43 · 5.8 km
- March 16, 2026 · score 43 · 5.8 km
How we know
Confirmed by 11 independent sources, including SPC.
Our own score for this event is 43 out of 100, at 95 % 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) | 43 / 100 |
| Our confidence | 95% |
| Coordinates | 40.2800, -76.8000 |
| Nearest City | Harrisburg (7 km) |
| Population Exposed | 198.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-28T01:48:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | 1 SSE Colonial Park |
| County | Dauphin |
| State | PA |
| Comments | Multiple trees down. (CTP) |
| Iem TypeSummary | H |
| Iem Magnitude | 0.5 |
| Iem Unit | Inch |
| Iem City | Marysville |
| Iem County | Perry |
| Iem State | PA |
| Iem Wfo | CTP |
| Iem Remark | Marble sized hail. |
| MergedSources | [{"id":"iem_D_40.280_-76.400_1787873100000","source":"iem","severity":"low","severityValue":25,"timestamp":1787873100000,"latitude":40.28,"longitude":-76.4},{"id":"iem_F_40.320_-76.600_1787882580000","source":"iem","severity":"low","severityValue":25,"timestamp":1787882580000,"latitude":40.32,"longitude":-76.6},{"id":"iem_F_40.260_-76.860_1787881200000","source":"iem","severity":"low","severityValue":25,"timestamp":1787881200000,"latitude":40.26,"longitude":-76.86},{"id":"iem_F_40.280_-76.800_1787881140000","source":"iem","severity":"low","severityValue":25,"timestamp":1787881140000,"latitude":40.28,"longitude":-76.8},{"id":"iem_H_40.160_-76.390_1787873400000","source":"iem","severity":"low","severityValue":25,"timestamp":1787873400000,"latitude":40.16,"longitude":-76.39},{"id":"iem_F_40.270_-76.440_1787873340000","source":"iem","severity":"low","severityValue":25,"timestamp":1787873340000,"latitude":40.27,"longitude":-76.44},{"id":"iem_D_40.280_-76.800_1787881680000","source":"iem","severity":"low","severityValue":25,"timestamp":1787881680000,"latitude":40.28,"longitude":-76.8},{"id":"iem_F_40.280_-76.400_1787873100000","source":"iem","severity":"low","severityValue":25,"timestamp":1787873100000,"latitude":40.28,"longitude":-76.4},{"id":"iem_F_40.260_-76.800_1787882760000","source":"iem","severity":"low","severityValue":25,"timestamp":1787882760000,"latitude":40.26,"longitude":-76.8},{"id":"iem_H_40.340_-76.930_1787876820000","source":"iem","severity":"low","severityValue":25,"timestamp":1787876820000,"latitude":40.34,"longitude":-76.93}] |
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 43/100, near Harrisburg (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 191 scientific monitoring sources.