Right now
The most recent data we hold from NOAA arrived 25 minutes 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 11 June 2026 at 20:45 UTC. It is kept here as a record.
It is the 34th strongest of the 133 detections recorded within 20 km of this point since 11 March 2026. The last comparable one was on 7 June 2026. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 11 at 3:59PM EDT until June 11 at 4:45PM EDT by NWS Pittsburgh PA
Urban PEI: 605,523 within a heuristic 50 km radius; not unique people.
Nearby, since 11 March 2026
- June 11, 2026 · score 41 · 3.5 km
- July 4, 2026 · score 48 · 12.1 km
- August 10, 2026 · score 48 · 13.2 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 41 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) | 41 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.1675, -79.8909 |
| Nearest City | McKeesport (20 km) |
| Urban exposure index (PEI) | 605.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-11T19:59:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.b654f542a3d7e62d7b51ed03f8caab3a |
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: 2026-06-11T19:59:00.000Z.
First archived: 2026-06-11T20:02:36.140Z. 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 | Fayette, PA; Greene, PA; Westmoreland, PA; Marion, WV; Monongalia, WV; Preston, WV; Barbour, WV; Gilmer, WV; Harrison, WV; Lewis, WV; Randolph, WV; Taylor, WV; Upshur, WV; Armstrong, PA; Butler, PA; Clarion, PA; Forest, PA; Jefferson, PA; Venango, PA and 2 more areas |
| Headline | Severe Thunderstorm Warning issued June 11 at 3:59PM EDT until June 11 at 4:45PM EDT by NWS Pittsburgh PA |
| Expires | 2026-06-11T16:45:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b654f542a3d7e62d7b51ed03f8caab3a5a8170b1.002.1","noaa_urn:oid:2.49.0.1.840.0.4b688077bbdce3b2ba3633f46db56d252faabc36.001.1","noaa_urn:oid:2.49.0.1.840.0.cd1ea9169e09565c7f160da890e06fa0473a4a2a.001.1","noaa_urn:oid:2.49.0.1.840.0.e8e928de5bb6d5aaafcb3420250bbb8bf9d883eb.001.1","noaa_urn:oid:2.49.0.1.840.0.cf218e25c0e343325a223e7ed3ff77d16d4ce6f3.001.1"] |
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 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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