Right now
The most recent data we hold from NOAA arrived 1 minute ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
Nothing else has been detected within 20 km in the last 24 hours.
This alert expired on 14 June 2026 at 22:45 UTC. It is kept here as a record.
It is the 131st strongest of the 196 detections recorded within 20 km of this point since 16 March 2026. Another comparable one was recorded here earlier the same day. 5 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 14 at 6:31PM EDT until June 14 at 6:45PM EDT by NWS State College PA
Urban PEI: 239,635 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- June 11, 2026 · score 37 · 1.0 km
- August 28, 2026 · score 49 · 7.9 km
- June 14, 2026 · score 43 · 8.5 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 37 out of 100.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 37 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 39.4688, -77.7328 |
| Nearest City | Hagerstown (19 km) |
| Urban exposure index (PEI) | 239.6K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-14T22:31:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0e34e8b294065fe7d16f2926aab53c2e |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-06-14T22:31:00.000Z.
First archived: 2026-06-14T22:34:42.591Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Franklin, PA; Spotsylvania, VA; Stafford, VA; City of Fredericksburg, VA; Caroline, VA; Essex, VA; Westmoreland, VA and 10 more areas |
| Headline | Severe Thunderstorm Warning issued June 14 at 6:31PM EDT until June 14 at 6:45PM EDT by NWS State College PA |
| Expires | 2026-06-14T18:45:00-04:00 |
| SenderName | NWS State College PA |
| HasExactCoords | true |
| MergedCount | 13 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.0e34e8b294065fe7d16f2926aab53c2e51066591.001.1","noaa_urn:oid:2.49.0.1.840.0.9c22807743cfffcc254e63fa2e6b95a754e43158.001.1","noaa_urn:oid:2.49.0.1.840.0.bb55ad080c93e02deb0c78e99959d1a48d587c66.001.1","noaa_urn:oid:2.49.0.1.840.0.4ccdaa4b34c790f572b48bfe2625d6db5b79000f.002.1","noaa_urn:oid:2.49.0.1.840.0.9892cb8a9ec25cc3deea05ab5bca2283ac8055ed.001.1","noaa_urn:oid:2.49.0.1.840.0.bbee0eefdb96215047a18ee00f65fa2282cc3b02.001.1","noaa_urn:oid:2.49.0.1.840.0.052fdaac3ec7360c5077b8faecd5eea5a9f31a13.001.1","noaa_urn:oid:2.49.0.1.840.0.9c14cae309f8b87cc4600a6f0a218d82fc05c6ac.001.1","noaa_urn:oid:2.49.0.1.840.0.33acb7046e41ad57d143fa859b98fee1dade11fe.002.1","noaa_urn:oid:2.49.0.1.840.0.c8d1553a851b50fd3e695193a42d287a9d6c0e80.001.1","noaa_urn:oid:2.49.0.1.840.0.54bde6f40bc97e123f1342cf4b8e1037d51739ed.002.1","noaa_urn:oid:2.49.0.1.840.0.7e0f73f35befc859aefaa647556fdb6fb9fdcf3c.001.1","noaa_urn:oid:2.49.0.1.840.0.eb32663e6618233598d9284b8bcb2bfbb3858577.002.1"] |
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 8 March 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.
Review the area, threshold and delivery channel in your account.
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