Calamity
MediumSevere WeatherCalamity Score: 34

Severe Weather in United States

MarquetteUnited StatesNOAA

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.

Nothing else has been detected within 20 km in the last 24 hours.

This alert expired on 12 July 2026 at 21:30 UTC. It is kept here as a record.

No stronger detection stands among the 31 recorded within 20 km of this point since 15 March 2026 — 2 others scored the same. Another comparable one was recorded here earlier the same day. 4 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued July 12 at 5:04PM EDT until July 12 at 5:30PM EDT by NWS Marquette MI

An estimated 21,297 people live within 50 km of this point.

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 34 out of 100, at 81 % 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

TypeSevere Weather
SeverityMedium
Calamity Score (ours)34 / 100
Our confidence81%
Coordinates46.1330, -87.5170
Nearest CityMarquette (46 km)
Population Exposed21.3K within 50 km
Impact Tiersignificant
Timestamp2026-07-12T21:04:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.0c064640828ffa3d38614f201c668cfb

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescDelta, MI; Marquette, MI; Menominee, MI; Dickinson, MI; Marquette, MI
HeadlineSevere Thunderstorm Warning issued July 12 at 5:04PM EDT until July 12 at 5:30PM EDT by NWS Marquette MI
Expires2026-07-12T17:30:00-04:00
SenderNameNWS Marquette MI
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.0c064640828ffa3d38614f201c668cfbd6f1115c.001.1","noaa_urn:oid:2.49.0.1.840.0.1342dbec8d7484b9b3834831239a3c679679f7ba.001.1"]

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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