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 15 June 2026 at 00:46 UTC. It is kept here as a record.
It is the 2nd strongest of the 67 detections recorded within 20 km of this point since 13 May 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 14 at 8:37PM EDT until June 14 at 8:45PM EDT by NWS Baltimore MD/Washington DC
Urban PEI: 69,326 within a heuristic 50 km radius; not unique people.
Nearby, since 13 May 2026
- August 28, 2026 · score 39 · 12.5 km
- August 27, 2026 · score 32 · 12.5 km
- June 11, 2026 · score 32 · 19.6 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 40.3573, -77.4196 |
| Nearest City | Carlisle (26 km) |
| Urban exposure index (PEI) | 69.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-15T00:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a03c208802f4b7c7977e3a43b86710e8 |
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: 2026-06-15T00:37:00.000Z.
First archived: 2026-06-15T00:39:57.903Z. 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 | Allegany, MD; Garrett, MD; Grant, WV; Mineral, WV; Barbour, WV; Harrison, WV; Lewis, WV; Taylor, WV; Upshur, WV; Baltimore, MD; Carroll, MD; Frederick, MD and 11 more areas |
| Headline | Severe Thunderstorm Warning issued June 14 at 8:37PM EDT until June 14 at 8:45PM EDT by NWS Baltimore MD/Washington DC |
| Expires | 2026-06-14T20:46:00-04:00 |
| SenderName | NWS Baltimore MD/Washington DC |
| HasExactCoords | true |
| MergedCount | 15 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a03c208802f4b7c7977e3a43b86710e8d9f084ea.001.1","noaa_urn:oid:2.49.0.1.840.0.b99d4d162b1e1e0dfc0a4f1c31856245032a0c59.001.1","noaa_urn:oid:2.49.0.1.840.0.54af2c7f91cdbdd6e217ab94f3924ad93568a184.001.1","noaa_urn:oid:2.49.0.1.840.0.c2d12f13f5da365f46acc1b9f20002e70e50d77a.001.1","noaa_urn:oid:2.49.0.1.840.0.e7f514a149d6e83b22dbe5d93f371e5e91827b20.001.1","noaa_urn:oid:2.49.0.1.840.0.8432877dc46d75ec0d7667c10d20f558877887f5.001.1","noaa_urn:oid:2.49.0.1.840.0.502b900e17fe0c0e332ac8d52c7032e6d50995f5.001.1","noaa_urn:oid:2.49.0.1.840.0.f3b23dfa6d9cc0ec95ae230062f5c888d2e0f2be.001.1","noaa_urn:oid:2.49.0.1.840.0.b920cfe5f22b495d7865f426990d0a53db20c8b4.002.1","noaa_urn:oid:2.49.0.1.840.0.73e943781e69b0dfa59454e0b33939f5c48c1406.002.1","noaa_urn:oid:2.49.0.1.840.0.5c6a23c0b31e900be9cc289cef7c68a1083f2d26.001.1","noaa_urn:oid:2.49.0.1.840.0.6fed67b61bfd978470d9a2c3b4b7164ddcf69dc0.001.1","noaa_urn:oid:2.49.0.1.840.0.11589b639036626b2f426de16519961e6523b315.001.1","noaa_urn:oid:2.49.0.1.840.0.7cad878b25afdb1a6f1f70911df4360c070e013a.001.1","noaa_urn:oid:2.49.0.1.840.0.adf51ca18d10d639dd04a72cf71c2a2ed26a7411.001.1"] |
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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