Right now
The most recent data we hold from NOAA arrived 2 hours 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 19 June 2026 at 05:47 UTC. It is kept here as a record.
No stronger detection stands among the 7 recorded within 20 km of this point since 2 April 2026 — 3 others scored the same. 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 18 at 10:37PM PDT until June 18 at 10:45PM PDT by NWS Reno NV
How we know
8 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 22 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) | 22 / 100 |
| Legacy data-support index | 0.70/1 |
| Coordinates | 39.9686, -120.3286 |
| Nearest City | Susanville (57 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-19T05:37:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.5e6c61d9c0d968c9699d04e00895770e6915c27e.001.1 |
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: 2026-06-19T05:37:00.000Z.
First archived: 2026-06-19T05:43:30.336Z. 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 | Plumas, CA |
| Headline | Severe Thunderstorm Warning issued June 18 at 10:37PM PDT until June 18 at 10:45PM PDT by NWS Reno NV |
| Expires | 2026-06-18T22:47:00-07:00 |
| SenderName | NWS Reno NV |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 46 |
| Iem Unit | MPH |
| Iem City | 5 SSW Reno |
| Iem County | Washoe |
| Iem State | NV |
| Iem Wfo | REV |
| Iem Remark | Mesonet station NV003 Caughlin. |
| MergedSources | [{"id":"iem_G_39.490_-119.980_1781834400000","source":"iem","severity":"low","severityValue":25,"timestamp":1781834400000,"latitude":39.49,"longitude":-119.98},{"id":"iem_G_39.560_-119.850_1781835600000","source":"iem","severity":"low","severityValue":25,"timestamp":1781835600000,"latitude":39.56,"longitude":-119.85},{"id":"iem_G_39.550_-119.880_1781835240000","source":"iem","severity":"low","severityValue":25,"timestamp":1781835240000,"latitude":39.55,"longitude":-119.88},{"id":"iem_G_39.540_-119.930_1781835300000","source":"iem","severity":"low","severityValue":25,"timestamp":1781835300000,"latitude":39.54,"longitude":-119.93},{"id":"iem_G_39.500_-119.920_1781834400000","source":"iem","severity":"low","severityValue":25,"timestamp":1781834400000,"latitude":39.5,"longitude":-119.92},{"id":"iem_G_39.500_-119.770_1781832180000","source":"iem","severity":"low","severityValue":25,"timestamp":1781832180000,"latitude":39.5,"longitude":-119.77},{"id":"iem_G_39.480_-119.860_1781833800000","source":"iem","severity":"low","severityValue":25,"timestamp":1781833800000,"latitude":39.48,"longitude":-119.86}] |
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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