Right now
The most recent data we hold from NOAA arrived 3 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 18 May 2026 at 17:30 UTC. It is kept here as a record.
It is the 10th strongest of the 58 detections recorded within 20 km of this point since 31 March 2026. The last comparable one was on 5 May 2026. 2 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued May 18 at 12:37PM EDT until May 18 at 1:30PM EDT by NWS Northern Indiana
An estimated 215,246 people live within 50 km of this point.
Nearby, since 31 March 2026
- May 18, 2026 · score 43 · 11.2 km
- August 10, 2026 · score 43 · 11.6 km
- July 27, 2026 · score 72 · 17.5 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 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) | 43 / 100 |
| Our confidence | 85% |
| Coordinates | 41.3095, -86.8584 |
| Nearest City | Valparaiso (25 km) |
| Population Exposed | 215.2K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-05-18T16:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.2a12f46dbc781cbafa7f360192fcd6ae |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | La Porte, IN; Berrien, MI; Benton, IN; Jasper, IN; Porter, IN |
| Headline | Severe Thunderstorm Warning issued May 18 at 12:37PM EDT until May 18 at 1:30PM EDT by NWS Northern Indiana |
| Expires | 2026-05-18T13:30:00-04:00 |
| SenderName | NWS Northern Indiana |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.2a12f46dbc781cbafa7f360192fcd6ae506918ac.001.1","noaa_urn:oid:2.49.0.1.840.0.75bbfa117eaac8bbc7f21b25785d7c8a5d75c3c1.002.1"] |
| Iem TypeSummary | D |
| Iem City | Homewood |
| Iem County | Cook |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | Trained spotter reports a few 3-4 inch diameter branches downed in Homewood. Time estimated by radar. |
| MergedSources | [{"id":"iem_D_41.560_-87.660_1779119700000","source":"iem","severity":"low","severityValue":25,"timestamp":1779119700000,"latitude":41.56,"longitude":-87.66}] |
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 Valparaiso?
Calamity.live data shows a weather event with CalamityScore 43/100, near Valparaiso (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.