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 9 June 2026 at 03:15 UTC. It is kept here as a record.
It is the 16th strongest of the 28 detections recorded within 20 km of this point since 26 May 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued June 8 at 9:26PM CDT until June 8 at 10:15PM CDT by NWS North Platte NE
Nearby, since 26 May 2026
- May 31, 2026 · score 46 · 21.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 16 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) | 16 / 100 |
| Legacy data-support index | 0.60/1 |
| Coordinates | 40.8582, -102.3946 |
| Nearest City | North Platte (139 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-09T02:26:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.b8d5f440ba9d13de615bacb58a52b339 |
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: 2026-06-09T02:26:00.000Z.
First archived: 2026-06-09T02:28:41.472Z. 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 | Arthur, NE; Chase, NE; Hayes, NE; Keith, NE; Lincoln, NE; McPherson, NE; Perkins, NE; Dundy, NE; Sheridan, NE and 5 more areas |
| Headline | Severe Thunderstorm Warning issued June 8 at 9:26PM CDT until June 8 at 10:15PM CDT by NWS North Platte NE |
| Expires | 2026-06-08T22:15:00-05:00 |
| SenderName | NWS North Platte NE |
| HasExactCoords | true |
| MergedCount | 8 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.b8d5f440ba9d13de615bacb58a52b3398fd4682a.001.1","noaa_urn:oid:2.49.0.1.840.0.02a93fddad5a374c210b5855c64c875f8ab6094b.001.1","noaa_urn:oid:2.49.0.1.840.0.89901392505e301fc7ea57d1236ad523f36f5ffe.001.1","noaa_urn:oid:2.49.0.1.840.0.e3a4dbe2c2d00cfd9027a6ec7760b08166225292.001.1","noaa_urn:oid:2.49.0.1.840.0.d543a635316536124b6bf238ca8ad095b38d8755.001.1","noaa_urn:oid:2.49.0.1.840.0.c39c271a594a9b4bed5085434fa8c7583e3e321c.001.1","noaa_urn:oid:2.49.0.1.840.0.c496498e737f8232bfebdd6d01fca4a6234a39ff.001.1","noaa_urn:oid:2.49.0.1.840.0.b7d9e1a31633bfb73087fbf52f3a985f991071c4.001.1"] |
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.
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