This alert expired on 5 July 2026 at 04:45 UTC. It is kept here as a record.
It is the 12th strongest of the 90 detections recorded within 20 km of this point since 13 April 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: Flood Warning issued July 4 at 5:44AM CDT until July 5 at 10:00PM CDT by NWS Chicago IL
An estimated 1,036,015 people live within 50 km of this point.
Nearby, since 13 April 2026
- July 27, 2026 · score 76 · 2.2 km
- July 4, 2026 · score 52 · 8.1 km
- June 12, 2026 · score 76 · 9.3 km
How we know
Confirmed by 4 independent sources, including NOAA.
Our own score for this event is 52 out of 100, at 90 % confidence.
The score is ours, computed from intensity, exposed population and local history — not the source’s.
Event Data
| Type | Severe weather |
| Severity | medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 90% |
| Coordinates | 41.5337, -87.1221 |
| Nearest City | Portage (7 km) |
| Population Exposed | 1.0M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-04T10:44:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.49a6f8210592539770afbabc93706961 |
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | Cook, IL; Elkhart, IN; Kosciusko, IN; Marshall, IN; St. Joseph, IN; Cook, IL; Will, IL; Lake, IN |
| Headline | Flood Warning issued July 4 at 5:44AM CDT until July 5 at 10:00PM CDT by NWS Chicago IL |
| Expires | 2026-07-04T23:45:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.49a6f8210592539770afbabc93706961507d3c0f.001.1","noaa_urn:oid:2.49.0.1.840.0.7dd2b8e4b28fe67e4863085dce5257c90676c1e3.001.1","noaa_urn:oid:2.49.0.1.840.0.16bfcaef9d8f7def547036a71c1cfe227cdfdfb8.001.1"] |
| Iem TypeSummary | R |
| Iem Magnitude | 5.05 |
| Iem Unit | Inch |
| Iem City | 1 ENE Homewood |
| Iem County | Cook |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | Private weather station KILHOMEW30 reported 5.05 inches of rainfall in 3 hours. |
| MergedSources | [{"id":"iem_R_41.610_-87.600_1783140300000","source":"iem","severity":"low","severityValue":25,"timestamp":1783140300000,"latitude":41.61,"longitude":-87.6},{"id":"iem_R_41.500_-87.860_1783141200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783141200000,"latitude":41.5,"longitude":-87.86},{"id":"iem_R_41.560_-87.650_1783141200000","source":"iem","severity":"low","severityValue":25,"timestamp":1783141200000,"latitude":41.56,"longitude":-87.65}] |
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 10 February 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.
Calamity.live data shows a weather event with CalamityScore 52/100, near Portage (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.