Right now
The most recent data we hold from NOAA arrived 5 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 00:15 UTC. It is kept here as a record.
It is one of only 3 we have recorded within 20 km of this point since 27 May 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 27 at 4:37PM PDT until May 27 at 5:15PM PDT by NWS Medford OR
An estimated 40,656 people live within 50 km of this point.
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 34 out of 100, at 91 % 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) | 34 / 100 |
| Our confidence | 91% |
| Coordinates | 42.0740, -121.7720 |
| Nearest City | Altamont (15 km) |
| Population Exposed | 40.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-27T23:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.5959521300cee8493786e9c629fdb062 |
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 4:37PM PDT until May 27 at 5:15PM PDT by NWS Medford OR |
| Expires | 2026-05-27T17:15:00-07:00 |
| SenderName | NWS Medford OR |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.5959521300cee8493786e9c629fdb062a9a100de.001.1","noaa_urn:oid:2.49.0.1.840.0.36aa9484a5036379517c85ebcc0ee8cc3ffba2d6.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 60 |
| Iem Unit | MPH |
| Iem City | 1 N Bly |
| Iem County | Klamath |
| Iem State | OR |
| Iem Wfo | MFR |
| Iem Remark | Gust reported by ODOT weather station. |
| MergedSources | [{"id":"iem_H_42.400_-121.040_1779924120000","source":"iem","severity":"low","severityValue":25,"timestamp":1779924120000,"latitude":42.4,"longitude":-121.04},{"id":"iem_G_42.410_-121.040_1779923640000","source":"iem","severity":"low","severityValue":25,"timestamp":1779923640000,"latitude":42.41,"longitude":-121.04}] |
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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