This alert expired on 27 June 2026 at 03:00 UTC. It is kept here as a record.
No stronger detection stands among the 24 recorded within 20 km of this point since 25 May 2026 — 8 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 26 at 8:52PM MDT until June 26 at 9:00PM MDT by NWS Boise ID
An estimated 508,786 people live within 50 km of this point.
Nearby, since 25 May 2026
- June 27, 2026 · score 48 · 2.6 km
- July 24, 2026 · score 48 · 13.5 km
- May 25, 2026 · score 48 · 20.4 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 78 % 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 | 78% |
| Coordinates | 43.6040, -116.2650 |
| Nearest City | Boise (5 km) |
| Population Exposed | 508.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-27T02:52:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.a944079100c742b4e956d8b771110fcc |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Ada, ID; Canyon, ID; Ada, ID; Boise, ID |
| Headline | Severe Thunderstorm Warning issued June 26 at 8:52PM MDT until June 26 at 9:00PM MDT by NWS Boise ID |
| Expires | 2026-06-26T21:00:00-06:00 |
| SenderName | NWS Boise ID |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.a944079100c742b4e956d8b771110fccac99048b.001.1","noaa_urn:oid:2.49.0.1.840.0.a0991eb0127d918a308e1d3db0ad12471f7f2e4e.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 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.
Want to know when something happens near Boise?
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 185 scientific monitoring sources.