This alert expired on 25 May 2026 at 22:45 UTC. It is kept here as a record.
No stronger detection stands among the 20 recorded within 20 km of this point since 25 May 2026 — 7 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 25 at 4:27PM MDT until May 25 at 4:45PM MDT by NWS Boise ID
An estimated 508,786 people live within 50 km of this point.
Nearby, since 25 May 2026
- July 24, 2026 · score 48 · 13.9 km
- June 27, 2026 · score 48 · 20.4 km
- June 27, 2026 · score 48 · 22.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 48 out of 100, at 81 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 48 / 100 |
| Our confidence | 81% |
| Coordinates | 43.7392, -116.0931 |
| Nearest City | Boise (17 km) |
| Population Exposed | 508.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-25T22:27:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.80da2c87cab47d2a688cd86f4dec8a7d19f2181f.002.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ada, ID; Boise, ID; Gem, ID |
| Headline | Severe Thunderstorm Warning issued May 25 at 4:27PM MDT until May 25 at 4:45PM MDT by NWS Boise ID |
| Expires | 2026-05-25T16:45:00-06:00 |
| 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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 48/100, near Boise (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.