Right now
The most recent data we hold from NOAA arrived 52 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 29 May 2026 at 05:15 UTC. It is kept here as a record.
It is one of only 2 we have recorded within 20 km of this point since 29 May 2026.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 28 at 9:00PM PDT until May 28 at 10:15PM PDT by NWS Spokane WA
An estimated 55,718 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 39 out of 100, at 85 % 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) | 39 / 100 |
| Our confidence | 85% |
| Coordinates | 47.2860, -119.6782 |
| Nearest City | Moses Lake (35 km) |
| Population Exposed | 55.7K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-29T04:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.251c0649d108067d3fe68433b0a44cf6 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Adams, WA; Chelan, WA; Douglas, WA; Grant, WA; Lincoln, WA; Adams, WA; Grant, WA; Lincoln, WA |
| Headline | Severe Thunderstorm Warning issued May 28 at 9:00PM PDT until May 28 at 10:15PM PDT by NWS Spokane WA |
| Expires | 2026-05-28T22:15:00-07:00 |
| SenderName | NWS Spokane WA |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.251c0649d108067d3fe68433b0a44cf6d7882acd.001.1","noaa_urn:oid:2.49.0.1.840.0.c41a361827d0382e405cf6391898647348da758e.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 0.88 |
| Iem Unit | Inch |
| Iem City | Odessa |
| Iem County | Lincoln |
| Iem State | WA |
| Iem Wfo | OTX |
| MergedSources | [{"id":"iem_H_47.330_-118.690_1780020600000","source":"iem","severity":"low","severityValue":25,"timestamp":1780020600000,"latitude":47.33,"longitude":-118.69}] |
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.
Want to know when something happens in this area?
Calamity.live data shows a weather event with CalamityScore 39/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.