Reported by SPC 169 days ago.
It is the 16th strongest of the 116 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 42 more were recorded here in the fortnight before it.
What the source measured
SPC reported: Wind UNK kt near Hellertown, Northampton, PA. Several trees and wires down around Hellertown. Time estimated from radar. (PHI)
An estimated 304,160 people live within 50 km of this point.
Nearby, since 17 March 2026
- July 29, 2026 · score 43 · 3.8 km
- July 28, 2026 · score 43 · 7.3 km
- March 17, 2026 · score 43 · 7.4 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.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 43 / 100 |
| Our confidence | 78% |
| Coordinates | 40.5800, -75.3400 |
| Nearest City | Bethlehem (6 km) |
| Population Exposed | 304.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-17T03:00:00.000Z |
| Source | https://www.spc.noaa.gov/climo/reports/today.html |
Score Breakdown
Technical Details
| ReportType | wind |
| Speed | UNK |
| Location | Hellertown |
| County | Northampton |
| State | PA |
| Comments | Several trees and wires down around Hellertown. Time estimated from radar. (PHI) |
| Iem TypeSummary | D |
| Iem City | Hellertown |
| Iem County | Northampton |
| Iem State | PA |
| Iem Wfo | PHI |
| Iem Remark | Several trees and wires down around Hellertown. Time estimated from radar. |
| MergedSources | [{"id":"iem_D_40.580_-75.340_1773716400000","source":"iem","severity":"low","severityValue":25,"timestamp":1773716400000,"latitude":40.58,"longitude":-75.34}] |
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.
Want to know when something happens near Bethlehem?
Calamity.live data shows a weather event with CalamityScore 43/100, near Bethlehem (United States), based on data from spc. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.