This alert expired on 28 May 2026 at 00:45 UTC. It is kept here as a record.
Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 27 at 5:13PM PDT until May 27 at 5:45PM PDT by NWS Medford OR
An estimated 40,656 people live within 50 km of this point.
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 85 % 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) | 34 / 100 |
| Our confidence | 85% |
| Coordinates | 42.0950, -122.0970 |
| Nearest City | Klamath Falls (30 km) |
| Population Exposed | 40.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-28T00:13:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.6872143b374da1f684084f2faa683efe |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Klamath, OR; Siskiyou, CA; Klamath, OR |
| Headline | Severe Thunderstorm Warning issued May 27 at 5:13PM PDT until May 27 at 5:45PM PDT by NWS Medford OR |
| Expires | 2026-05-27T17:45:00-07:00 |
| SenderName | NWS Medford OR |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.6872143b374da1f684084f2faa683efea6653a25.001.1","noaa_urn:oid:2.49.0.1.840.0.0a5f8c3af595aa7bbdae8b86b00548ccd783ee06.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 9 SSE Sprague River |
| Iem County | Klamath |
| Iem State | OR |
| Iem Wfo | MFR |
| Iem Remark | ODOT road camera shows hail covering highway 140 at Bly Mountain at a depth estimated as >1 inch. |
| MergedSources | [{"id":"iem_H_42.340_-121.400_1779925500000","source":"iem","severity":"low","severityValue":25,"timestamp":1779925500000,"latitude":42.34,"longitude":-121.4}] |
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 Klamath Falls?
Calamity.live data shows a weather event with CalamityScore 34/100, near Klamath Falls (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.