Right now
The most recent data we hold from NOAA arrived 33 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 9 June 2026 at 07:00 UTC. It is kept here as a record.
It is the 156th strongest of the 182 detections recorded within 20 km of this point since 27 April 2026. The last comparable one was on 8 June 2026. 22 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Watch issued June 8 at 8:33PM CDT until June 9 at 2:00AM CDT by NWS North Platte NE
Nearby, since 27 April 2026
- September 5, 2026 · score 16 · 0.0 km
- August 12, 2026 · score 22 · 0.0 km
- July 31, 2026 · score 22 · 0.0 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 | 41.5000, -99.9000 |
| Nearest City | North Platte (84 km) |
| Urban exposure index (PEI) | 0 within 50 km |
| Impact Tier | minor |
| Timestamp | 2026-06-09T01:33:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Watch_noaa_urn:oid:2.49.0.1.840.0.4750589ede020b0bb9f39129e20c88db |
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: 2026-06-09T01:33:00.000Z.
First archived: 2026-06-09T02:39:04.529Z. 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 Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Arthur, NE; Chase, NE; Deuel, NE; Frontier, NE; Garden, NE; Grant, NE; Hayes, NE; Keith, NE; Lincoln, NE; Perkins, NE; Sheridan, NE; Banner, NE; Box Butte, NE; Cheyenne, NE; Kimball, NE; Morrill, NE; Scotts Bluff, NE; Sioux, NE; Goshen, WY; Laramie, WY |
| Headline | Severe Thunderstorm Watch issued June 8 at 8:33PM CDT until June 9 at 2:00AM CDT by NWS North Platte NE |
| Expires | 2026-06-09T02:00:00-05:00 |
| SenderName | NWS North Platte NE |
| HasExactCoords | false |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.4750589ede020b0bb9f39129e20c88db1c89af9d.001.1","noaa_urn:oid:2.49.0.1.840.0.f84b7821caf45111f8265f2d76fd2b88a1eb4b40.002.1"] |
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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