Right now
The most recent data we hold from NOAA arrived 6 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 17 May 2026 at 23:15 UTC. It is kept here as a record.
No stronger detection stands among the 45 recorded within 20 km of this point since 15 March 2026 — 8 others scored the same. The last comparable one was on 12 May 2026. One more was recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 17 at 6:17PM EDT until May 17 at 7:15PM EDT by NWS Gaylord MI
An estimated 15,218 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.
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 | 85% |
| Coordinates | 44.4838, -86.1125 |
| Nearest City | Traverse City (50 km) |
| Population Exposed | 15.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-17T22:17:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.20b626e67babd3709148f40f81f79b391c8b9258.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Benzie, MI; Manistee, MI |
| Headline | Severe Thunderstorm Warning issued May 17 at 6:17PM EDT until May 17 at 7:15PM EDT by NWS Gaylord MI |
| Expires | 2026-05-17T19:15:00-04:00 |
| SenderName | NWS Gaylord MI |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 44 |
| Iem Unit | MPH |
| Iem City | 3 WSW Onekama |
| Iem County | Manistee |
| Iem State | MI |
| Iem Wfo | APX |
| Iem Remark | Mesonet station EW5499 Onekama. |
| MergedSources | [{"id":"iem_G_44.350_-86.270_1779057900000","source":"iem","severity":"low","severityValue":25,"timestamp":1779057900000,"latitude":44.35,"longitude":-86.27}] |
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 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.