Right now
The most recent data we hold from NOAA arrived 2 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 28 May 2026 at 22:00 UTC. It is kept here as a record.
It is the only one we have recorded within 20 km of this point since 28 May 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 28 at 3:17PM MDT until May 28 at 4:00PM MDT by NWS Boise ID
An estimated 252,910 people live within 50 km of this point.
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 78 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
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) | 43 / 100 |
| Our confidence | 78% |
| Coordinates | 43.2562, -115.9488 |
| Nearest City | Boise (44 km) |
| Population Exposed | 252.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-28T21:17:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.a3fcbc6560ef96eaf517db8d97842700bd91cbf4.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ada, ID; Canyon, ID; Elmore, ID; Owyhee, ID |
| Headline | Severe Thunderstorm Warning issued May 28 at 3:17PM MDT until May 28 at 4:00PM MDT by NWS Boise ID |
| Expires | 2026-05-28T16:00:00-06:00 |
| SenderName | NWS Boise ID |
| HasExactCoords | true |
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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