Right now
The most recent data we hold from NOAA arrived 12 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 4 September 2026 at 01:30 UTC. It is kept here as a record.
No stronger detection stands among the 46 recorded within 20 km of this point since 17 March 2026 — 25 others scored the same. Another comparable one was recorded here earlier the same day.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued September 3 at 8:54PM EDT until September 3 at 9:30PM EDT by NWS Baltimore MD/Washington DC
Urban PEI: 30,708 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- June 11, 2026 · 16.4 km
- July 18, 2026 · 16.8 km
- September 5, 2026 · score 28 · 17.2 km
How we know
2 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 28 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 v4. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 28 / 100 |
| Legacy data-support index | 0.87/1 |
| Coordinates | 39.6738, -79.5828 |
| Nearest City | Morgantown (33 km) |
| Urban exposure index (PEI) | 30.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-09-04T00:54:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.bc7bf1a46e2bafcdd3a77380aabcf77e1a84b18a.001.1 |
Physical priority index · v4 (historical). 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: 2026-09-04T00:54:00.000Z.
First archived: 2026-09-04T00:58:10.992Z. 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 | Garrett, MD; Doddridge, WV; Tyler, WV; Washington, MD; Morgan, WV and 1 more areas |
| Headline | Severe Thunderstorm Warning issued September 3 at 8:54PM EDT until September 3 at 9:30PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-09-03T21:30:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 4 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.bc7bf1a46e2bafcdd3a77380aabcf77e1a84b18a.001.1","noaa_urn:oid:2.49.0.1.840.0.cf41757ceae4a4198c9722e27250604d949bfaf9.002.1","noaa_urn:oid:2.49.0.1.840.0.61655d1f64c3049641cfd6f3bf1c13fb5fc3e119.002.1","noaa_urn:oid:2.49.0.1.840.0.1ca95c10feaa66df988b66b7af413b9f9b647a6e.001.1"] |
| Spc ReportType | wind |
| Spc Speed | UNK |
| Spc Location | Jennerstown |
| Spc County | Somerset |
| Spc State | PA |
| Spc Comments | Tree down across the intersection of Pine Springs Camp Road and Somerset Pike. (CTP) |
| MergedSources | [{"id":"spc_wind_40.21_-79.45_3","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.21,"longitude":-79.45},{"id":"spc_wind_40.18_-79.14_5","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.18,"longitude":-79.14},{"id":"spc_wind_40.11_-78.93_7","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.11,"longitude":-78.93},{"id":"spc_wind_40.04_-78.88_9","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.04,"longitude":-78.88},{"id":"spc_wind_40.22_-79.64_156","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.22,"longitude":-79.64},{"id":"spc_wind_40.28_-79.38_158","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.28,"longitude":-79.38},{"id":"spc_wind_40.27_-79.40_159","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.27,"longitude":-79.4},{"id":"spc_wind_40.21_-79.41_160","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.21,"longitude":-79.41},{"id":"spc_wind_40.15_-79.54_162","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.15,"longitude":-79.54},{"id":"spc_wind_40.14_-79.05_175","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.14,"longitude":-79.05},{"id":"spc_wind_40.14_-79.08_176","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.14,"longitude":-79.08},{"id":"spc_wind_40.17_-79.06_177","source":"spc","severity":"medium","severityValue":45,"timestamp":1788483461432,"latitude":40.17,"longitude":-79.06}] |
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.
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