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.
This alert expired on 12 June 2026 at 00:00 UTC. It is kept here as a record.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued June 11 at 4:07PM EDT until June 11 at 8:00PM EDT by NWS Pittsburgh PA
Urban PEI: 1,247,659 within a heuristic 50 km radius; not unique people.
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 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) | 46 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.4000, -82.9000 |
| Nearest City | Delaware (18 km) |
| Urban exposure index (PEI) | 1.2M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-11T20:07:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.12450fa36e1a283c9a43a8fbac1b1e8d |
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: 2026-06-11T20:07:00.000Z.
First archived: 2026-06-11T20:34:23.223Z. 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 Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Belmont, OH; Carroll, OH; Columbiana, OH; Guernsey, OH; Harrison, OH; Jefferson, OH; Monroe, OH; Noble, OH; Tuscarawas, OH; Allegheny, PA; Armstrong, PA; Beaver, PA; Butler, PA; Clarion, PA; Fayette, PA; Forest, PA; Greene, PA; Indiana, PA; Jefferson, PA; Lawrence, PA; Mercer, PA; Venango, PA; Washington, PA; Westmoreland, PA; Brooke, WV; Hancock, WV; Marion, WV; Marshall, WV; Monongalia, WV; Ohio, WV; Preston, WV; Wetzel, WV; Athens, OH; Morgan, OH; Washington, OH; Barbour, WV; Doddridge, WV; Harrison, WV; Pleasants, WV; Ritchie, WV; Taylor, WV; Tyler, WV; Wood, WV |
| Headline | Severe Thunderstorm Watch issued June 11 at 4:07PM EDT until June 11 at 8:00PM EDT by NWS Pittsburgh PA |
| Expires | 2026-06-11T20:00:00-04:00 |
| SenderName | NWS Pittsburgh PA |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.12450fa36e1a283c9a43a8fbac1b1e8dcf19c6d5.002.1","noaa_urn:oid:2.49.0.1.840.0.da695f585a4970e42a19a796e4986a63d8a5da37.001.1"] |
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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