Right now
The most recent data we hold from NOAA arrived 6 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 July 2026 at 19:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 64 detections recorded within 20 km of this point since 17 March 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 4 at 3:10PM EDT until July 4 at 3:45PM EDT by NWS Baltimore MD/Washington DC
Urban PEI: 49,441 within a heuristic 50 km radius; not unique people.
Nearby, since 17 March 2026
- August 28, 2026 · score 34 · 11.8 km
- July 4, 2026 · score 39 · 18.9 km
- September 5, 2026 · score 32 · 23.7 km
How we know
17 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 34 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) | 34 / 100 |
| Legacy data-support index | 0.88/1 |
| Coordinates | 39.5259, -79.6379 |
| Nearest City | Morgantown (30 km) |
| Urban exposure index (PEI) | 49.4K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T19:10:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.106584d5485cb4cf26baf93312332ac9 |
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: 2026-07-04T19:10:00.000Z.
First archived: 2026-07-04T19:13:15.498Z. 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 | Albemarle, VA; Greene, VA; Rockingham, VA; Garrett, MD; Barbour, WV; Harrison, WV; Taylor, WV and 15 more areas |
| Headline | Severe Thunderstorm Warning issued July 4 at 3:10PM EDT until July 4 at 3:45PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-07-04T15:45:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 18 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.106584d5485cb4cf26baf93312332ac93715b9e5.001.1","noaa_urn:oid:2.49.0.1.840.0.83e8493f5d664a049d1ca850c9f29ec142de394c.001.1","noaa_urn:oid:2.49.0.1.840.0.a1019a2ea3a35f4a316e2276f86b923862eef0d1.001.1","noaa_urn:oid:2.49.0.1.840.0.400f7e766b6377e26783adc9cf4009a9c62252c0.001.1","noaa_urn:oid:2.49.0.1.840.0.95241f2db93a8583d1a98e6c84cc151649f74aab.001.1","noaa_urn:oid:2.49.0.1.840.0.1135c1783805ab72b15ce32d87a392acf856a4a3.001.1","noaa_urn:oid:2.49.0.1.840.0.a3eff4ffc2b523a5c648919e3a9986bd6faa8305.001.1","noaa_urn:oid:2.49.0.1.840.0.aa507bac173bd897e15b4c7d15300932cbfab8a7.001.1","noaa_urn:oid:2.49.0.1.840.0.3873da111f1944158e1b70ca033c8aa96c3de11d.001.1","noaa_urn:oid:2.49.0.1.840.0.7041ba3782b86cab5d7f896d11a8fb7aa732aae5.001.1","noaa_urn:oid:2.49.0.1.840.0.e33ba0bfc9ed2f0064b26d21740a1822444c5e66.001.1","noaa_urn:oid:2.49.0.1.840.0.04181e84be891650fa18bd4a3a1ba8329991aa2f.001.1","noaa_urn:oid:2.49.0.1.840.0.0f50520e97afaceb07c580bf17ccbed207093c61.001.1","noaa_urn:oid:2.49.0.1.840.0.aedbc7a1c54448a64c9eabe030dee7a38e532cc9.001.1","noaa_urn:oid:2.49.0.1.840.0.85d704852a0eee4046f52bc3b5cec1a4818545ee.001.1","noaa_urn:oid:2.49.0.1.840.0.5665570611f430f0f487fb7b20c128dcf16542f8.001.1","noaa_urn:oid:2.49.0.1.840.0.41ad19a10a8d87573baf9da2b21059ab860681f7.001.1","noaa_urn:oid:2.49.0.1.840.0.b1bfd1e25fab5d3b3c34e85499b6c2597f4b30f1.001.1"] |
| Iem TypeSummary | D |
| Iem City | 2 SSE Morgantown |
| Iem County | Monongalia |
| Iem State | WV |
| Iem Wfo | PBZ |
| Iem Remark | trees down. |
| MergedSources | [{"id":"iem_D_39.610_-79.910_1783187940000","source":"iem","severity":"low","severityValue":25,"timestamp":1783187940000,"latitude":39.61,"longitude":-79.91},{"id":"iem_D_39.560_-79.990_1783187040000","source":"iem","severity":"low","severityValue":25,"timestamp":1783187040000,"latitude":39.56,"longitude":-79.99},{"id":"iem_D_39.560_-79.990_1783187340000","source":"iem","severity":"low","severityValue":25,"timestamp":1783187340000,"latitude":39.56,"longitude":-79.99},{"id":"iem_D_39.500_-80.090_1783188900000","source":"iem","severity":"low","severityValue":25,"timestamp":1783188900000,"latitude":39.5,"longitude":-80.09},{"id":"iem_D_39.530_-80.120_1783186200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783186200000,"latitude":39.53,"longitude":-80.12},{"id":"iem_D_39.570_-79.990_1783187340000","source":"iem","severity":"low","severityValue":25,"timestamp":1783187340000,"latitude":39.57,"longitude":-79.99},{"id":"iem_D_39.550_-80.030_1783186740000","source":"iem","severity":"low","severityValue":25,"timestamp":1783186740000,"latitude":39.55,"longitude":-80.03},{"id":"iem_D_39.590_-79.790_1783188300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783188300000,"latitude":39.59,"longitude":-79.79},{"id":"iem_D_39.520_-80.110_1783186440000","source":"iem","severity":"low","severityValue":25,"timestamp":1783186440000,"latitude":39.52,"longitude":-80.11},{"id":"iem_D_39.450_-79.940_1783187940000","source":"iem","severity":"low","severityValue":25,"timestamp":1783187940000,"latitude":39.45,"longitude":-79.94},{"id":"iem_D_39.710_-79.520_1783190220000","source":"iem","severity":"low","severityValue":25,"timestamp":1783190220000,"latitude":39.71,"longitude":-79.52},{"id":"iem_D_39.590_-79.920_1783187640000","source":"iem","severity":"low","severityValue":25,"timestamp":1783187640000,"latitude":39.59,"longitude":-79.92},{"id":"iem_D_39.510_-80.260_1783185060000","source":"iem","severity":"low","severityValue":25,"timestamp":1783185060000,"latitude":39.51,"longitude":-80.26},{"id":"iem_D_39.530_-80.190_1783185600000","source":"iem","severity":"low","severityValue":25,"timestamp":1783185600000,"latitude":39.53,"longitude":-80.19},{"id":"iem_D_39.600_-79.930_1783187640000","source":"iem","severity":"low","severityValue":25,"timestamp":1783187640000,"latitude":39.6,"longitude":-79.93},{"id":"iem_D_39.610_-79.940_1783187640000","source":"iem","severity":"low","severityValue":25,"timestamp":1783187640000,"latitude":39.61,"longitude":-79.94}] |
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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