Right now
The most recent data we hold from NOAA arrived 8 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 14 June 2026 at 05:15 UTC. It is kept here as a record.
It is the 4th strongest of the 85 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 12 June 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued June 13 at 10:47PM CDT until June 14 at 12:15AM CDT by NWS Chicago IL
An estimated 6,765,906 people live within 50 km of this point.
Nearby, since 10 March 2026
- June 28, 2026 · score 52 · 4.7 km
- August 11, 2026 · score 52 · 5.6 km
- May 18, 2026 · score 52 · 6.4 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 52 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
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 81% |
| Coordinates | 41.8900, -87.4372 |
| Nearest City | Near South Side (15 km) |
| Population Exposed | 6.8M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-14T03:47:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.701fdd984bddd7ddc09349703e84cd5f3aaba311.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Winthrop Harbor to Wilmette Harbor IL; Wilmette Harbor to Northerly Island IL; Northerly Island to Calumet Harbor IL; Calumet Harbor IL to Gary IN; Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake; Lake Michigan from Wilmette Harbor to Michigan City in 5NM offshore to Mid Lake |
| Headline | Special Marine Warning issued June 13 at 10:47PM CDT until June 14 at 12:15AM CDT by NWS Chicago IL |
| Expires | 2026-06-14T00:15:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
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 near Near South Side?
Calamity.live data shows a weather event with CalamityScore 52/100, near Near South Side (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.