This alert expired on 6 June 2026 at 22:15 UTC. It is kept here as a record.
It is the 5th strongest of the 98 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 6 at 5:14PM EDT until June 6 at 6:15PM EDT by NWS State College PA
An estimated 128,814 people live within 50 km of this point.
Nearby, since 12 March 2026
- July 19, 2026 · score 43 · 4.7 km
- July 19, 2026 · score 43 · 7.2 km
- July 5, 2026 · score 67 · 9.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 80 % 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 | 80% |
| Coordinates | 40.2028, -77.0034 |
| Nearest City | Harrisburg (13 km) |
| Population Exposed | 128.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-06T21:14:00.000Z |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Dauphin, PA; Lebanon, PA; Perry, PA; Carroll, MD; Frederick, MD; Washington, MD; Berkeley, WV; Jefferson, WV; Adams, PA; Franklin, PA; York, PA and 3 more areas |
| Headline | Severe Thunderstorm Warning issued June 6 at 5:14PM EDT until June 6 at 6:15PM EDT by NWS State College PA |
| Expires | 2026-06-06T18:15:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 6 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.fa68355f633598ddeaf193a850e21490496ffc55.001.1","noaa_urn:oid:2.49.0.1.840.0.fa02d68d9937ec8ce77bc3b6975cd80f33bddfab.001.1","noaa_urn:oid:2.49.0.1.840.0.1abaafaf7606a80f860b08ed6ff206413f426d4e.001.1","noaa_urn:oid:2.49.0.1.840.0.f9e99245bb1022a49b0d1dad0d86644a541fa88e.001.1","noaa_urn:oid:2.49.0.1.840.0.78537b097dabf6e3fb42cdfb1578dc30e040a861.001.1","noaa_urn:oid:2.49.0.1.840.0.8ce50d6c8b6f5ea0c562d9e9219ac2eca07fa0b6.001.1"] |
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 noaa. Source: Calamity.live, a platform aggregating real-time data from 194 scientific monitoring sources.