Right now
The most recent data we hold from NOAA arrived 11 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.
3 other detections within 20 km in the last 24 hours, the nearest 2 km from here.
This alert expired on 10 May 2026 at 00:30 UTC. It is kept here as a record.
It is the 5th strongest of the 36 detections recorded within 20 km of this point since 6 May 2026. 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 May 9 at 5:45PM MDT until May 9 at 6:30PM MDT by NWS Denver CO
Nearby, since 6 May 2026
- May 9, 2026 · score 22 · 0.0 km
- September 6, 2026 · score 28 · 1.9 km
- May 21, 2026 · score 22 · 8.3 km
How we know
Confirmed by 3 independent sources, including NOAA.
Our own score for this event is 22 out of 100, at 69 % 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) | 22 / 100 |
| Our confidence | 69% |
| Coordinates | 40.7738, -103.6993 |
| Nearest City | Greeley (94 km) |
| Impact Tier | minor |
| Timestamp | 2026-05-09T23:45:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.51d1f1284f89e0e2c229de69ffdf9fc5 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Logan, CO; Morgan, CO; Weld, CO; Logan, CO; Weld, CO |
| Headline | Severe Thunderstorm Warning issued May 9 at 5:45PM MDT until May 9 at 6:30PM MDT by NWS Denver CO |
| Expires | 2026-05-09T18:30:00-06:00 |
| SenderName | NWS Denver CO |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.51d1f1284f89e0e2c229de69ffdf9fc55fdbf84f.001.1","noaa_urn:oid:2.49.0.1.840.0.9295c9d82cf6f5b4134b8e3ea68171eb6034bcba.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1.5 |
| Iem Unit | Inch |
| Iem City | 1 N Pine Bluffs |
| Iem County | Laramie |
| Iem State | WY |
| Iem Wfo | CYS |
| Iem Remark | Trained storm spotter reported ping-pong ball sized hail 1 mile north of Pine Bluff. |
| MergedSources | [{"id":"iem_H_41.190_-104.070_1778367000000","source":"iem","severity":"low","severityValue":25,"timestamp":1778367000000,"latitude":41.19,"longitude":-104.07},{"id":"iem_H_41.200_-104.070_1778366760000","source":"iem","severity":"low","severityValue":25,"timestamp":1778366760000,"latitude":41.2,"longitude":-104.07}] |
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 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.