This alert expired on 16 March 2026 at 18:00 UTC. It is kept here as a record.
It is the 2nd strongest of the 44 detections recorded within 20 km of this point since 16 March 2026. 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: Flood Warning issued March 16 at 4:40AM CDT until March 16 at 1:00PM CDT by NWS Chicago IL
An estimated 133,508 people live within 50 km of this point.
Nearby, since 16 March 2026
- June 16, 2026 · score 43 · 1.1 km
- June 17, 2026 · score 39 · 9.8 km
- March 16, 2026 · score 39 · 11.0 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 43 out of 100, at 77 % 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 | 77% |
| Coordinates | 41.7741, -85.4493 |
| Nearest City | Goshen (38 km) |
| Population Exposed | 133.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-03-16T09:40:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.cda859e426d6529691e395b3d73a4949 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Cook, IL; Noble, IN; Clinton, MI and 2 more areas |
| Headline | Flood Warning issued March 16 at 4:40AM CDT until March 16 at 1:00PM CDT by NWS Chicago IL |
| Expires | 2026-03-16T13:00:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 5 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.cda859e426d6529691e395b3d73a49492c612290.001.1","noaa_urn:oid:2.49.0.1.840.0.2218bab91b7cd498871e3b5330f601066901957a.001.1","noaa_urn:oid:2.49.0.1.840.0.8ea33552376190796125d7e5892badb1fb443b64.001.1","noaa_urn:oid:2.49.0.1.840.0.2218bab91b7cd498871e3b5330f601066901957a.002.1","noaa_urn:oid:2.49.0.1.840.0.2218bab91b7cd498871e3b5330f601066901957a.003.1"] |
Safety Information
During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.
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 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.