This alert expired on 15 March 2026 at 02:45 UTC. It is kept here as a record.
It is the 15th strongest of the 126 detections recorded within 20 km of this point since 10 March 2026. Another comparable one was recorded here earlier the same day. 15 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Storm Watch issued March 14 at 10:37AM EDT until March 17 at 2:00AM EDT by NWS Marquette MI
Nearby, since 10 March 2026
- August 9, 2026 · score 22 · 0.0 km
- August 8, 2026 · score 22 · 0.0 km
- August 7, 2026 · score 22 · 0.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 22 out of 100, at 59 % 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 | 59% |
| Coordinates | 44.3000, -85.6000 |
| Nearest City | Traverse City (51 km) |
| Impact Tier | minor |
| Timestamp | 2026-03-16T03:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Storm-Watch_noaa_urn-oid-2_49_0_1_840_0_33c7b521f4b5a0f8401d69d7c6557fc3 |
Score Breakdown
Technical Details
| Event | Storm Watch |
| Urgency | Future |
| Certainty | Possible |
| AreaDesc | Grand Marais to Whitefish Point MI; Lake Superior from Grand Marais MI to Whitefish Point MI 5NM off shore to the US/Canadian border; Manitou Island to Point Isabelle MI; Point Isabelle to Lower Entrance of Portage Canal MI; Portage Lake to Huron Island MI to Lower Entrance of Portage Canal To Huron Islands MI Including Keweenaw and Huron Bays; Huron Islands to Marquette MI; Marquette to Munising MI; Munising to Grand Marais MI; Lake Superior West of Line from Manitou Island to Marquette MI Beyond 5NM from shore; Lake Superior East of a line from Manitou Island to Marquette MI and West of a line from Grand Marais MI to the US/Canadian Border Beyond 5NM from shore; Saxon Harbor WI to Black River MI; Black River To Ontonagon MI; Ontonagon to Upper Entrance of Portage Canal MI; Lake Superior from Saxon Harbor WI to Upper Entrance to Portage Canal MI 5NM off shore to the US/Canadian border including Isle Royale National Park and 2 more areas |
| Headline | Storm Watch issued March 14 at 10:37AM EDT until March 17 at 2:00AM EDT by NWS Marquette MI |
| Expires | 2026-03-14T22:45:00-04:00 |
| SenderName | NWS Marquette MI |
| HasExactCoords | false |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.33c7b521f4b5a0f8401d69d7c6557fc38e851ffc.004.2","noaa_urn:oid:2.49.0.1.840.0.33c7b521f4b5a0f8401d69d7c6557fc38e851ffc.003.2","noaa_urn:oid:2.49.0.1.840.0.33c7b521f4b5a0f8401d69d7c6557fc38e851ffc.001.2","noaa_urn:oid:2.49.0.1.840.0.33c7b521f4b5a0f8401d69d7c6557fc38e851ffc.002.2","noaa_urn:oid:2.49.0.1.840.0.8bd3bb024a525c91e2dbb4cb1e861078fe1fdb6a.001.2"] |
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.