This alert expired on 15 June 2026 at 00:45 UTC. It is kept here as a record.
It is the 12th strongest of the 222 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 14 June 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 14 at 8:06PM EDT until June 14 at 8:45PM EDT by NWS State College PA
An estimated 1,504,054 people live within 50 km of this point.
Nearby, since 12 March 2026
- March 16, 2026 · score 52 · 3.6 km
- July 18, 2026 · score 76 · 4.4 km
- March 12, 2026 · score 52 · 7.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
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 | 39.2382, -77.4878 |
| Nearest City | Leesburg (15 km) |
| Population Exposed | 1.5M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-15T00:06:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.610635a990c13b804536d510d0e98c61 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | York, PA; Caroline, MD; Queen Anne's, MD; Talbot, MD; Blair, PA; Cambria, PA; Centre, PA; Clinton, PA; Huntingdon, PA; Lycoming, PA and 11 more areas |
| Headline | Severe Thunderstorm Warning issued June 14 at 8:06PM EDT until June 14 at 8:45PM EDT by NWS State College PA |
| Expires | 2026-06-14T20:45:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 14 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.610635a990c13b804536d510d0e98c61e494a736.001.1","noaa_urn:oid:2.49.0.1.840.0.a8b3bd246b46bdf1ac80672c11549a3983a4192b.001.1","noaa_urn:oid:2.49.0.1.840.0.a8a9509d6a8bb87742745062c0f302c77db45152.002.1","noaa_urn:oid:2.49.0.1.840.0.9c8a3356df8c869d102f2fded95b4782850a2b87.001.1","noaa_urn:oid:2.49.0.1.840.0.936162aa56dee6647935df40858f21439d4ad433.001.1","noaa_urn:oid:2.49.0.1.840.0.34e6668b8441a1e5252eb25bdf96588d89f56dfe.001.1","noaa_urn:oid:2.49.0.1.840.0.73ac52de6fe8903a58e8c20919351a12c681be75.001.1","noaa_urn:oid:2.49.0.1.840.0.bcb44a1ec8a97339d0f08d0d3622483dfc8ce80d.001.1","noaa_urn:oid:2.49.0.1.840.0.554a468bd9bdbd40f7426d02c1f26ba8b366c241.001.1","noaa_urn:oid:2.49.0.1.840.0.14fb123d687689a139cbe00e73e040e406247c71.001.1","noaa_urn:oid:2.49.0.1.840.0.447f362f01a312d6391e80447bb5c62422d7c5f5.001.1","noaa_urn:oid:2.49.0.1.840.0.23b9441532a1b03853fb7353102c4b3180d8dda6.002.1","noaa_urn:oid:2.49.0.1.840.0.9edd862f24ee551d9e1aec6d2898f67d06dfa43e.002.1","noaa_urn:oid:2.49.0.1.840.0.9b56603e3ee6ad748a975bd7a1374f4fdc8e3822.001.1"] |
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 52/100, near Leesburg (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.