Right now
The most recent data we hold from NOAA arrived 4 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 5 July 2026 at 20:00 UTC. It is kept here as a record.
It is the 26th strongest of the 46 detections recorded within 20 km of this point since 10 March 2026. The last comparable one was on 5 July 2026. 10 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued July 4 at 8:51PM CDT until July 5 at 8:00PM CDT by NWS Chicago IL
Urban PEI: 15,057 within a heuristic 50 km radius; not unique people.
Nearby, since 10 March 2026
- March 10, 2026 · score 40 · 3.5 km
- June 7, 2026 · score 34 · 5.0 km
- July 6, 2026 · score 34 · 7.3 km
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.
This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.
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) | 34 / 100 |
| Legacy data-support index | 0.80/1 |
| Coordinates | 41.4051, -89.6485 |
| Nearest City | Sterling (43 km) |
| Urban exposure index (PEI) | 15.1K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-06T15:00:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.e9718a14b43060838ffd14054050877f |
Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.
Source and revision timeline
Source: noaa. Occurrence: 2026-07-06T15:00:00.000Z.
First archived: 2026-07-05T01:54:48.234Z. Material modification: not recorded.
Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.
Score Breakdown
Technical Details
| Event | Flood Warning |
| Urgency | Expected |
| Certainty | Likely |
| AreaDesc | DuPage, IL; Will, IL; Bureau, IL; La Salle, IL; Putnam, IL; La Salle, IL and 29 more areas |
| Headline | Flood Warning issued July 4 at 8:51PM CDT until July 5 at 8:00PM CDT by NWS Chicago IL |
| Expires | 2026-07-05T15:00:00-05:00 |
| SenderName | NWS Chicago IL |
| HasExactCoords | true |
| MergedCount | 34 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.e9718a14b43060838ffd14054050877f9898b8bb.001.1","noaa_urn:oid:2.49.0.1.840.0.6ab6572335e4ad90ef700815f19d9ddd04aef4fd.001.1","noaa_urn:oid:2.49.0.1.840.0.b761dd97ff337932b38d236b2f85000955643cf5.001.1","noaa_urn:oid:2.49.0.1.840.0.ba33e9078f8f347f63f9437054b182b030983274.002.1","noaa_urn:oid:2.49.0.1.840.0.ba33e9078f8f347f63f9437054b182b030983274.001.1","noaa_urn:oid:2.49.0.1.840.0.67f1ed59b2738798162cdb382c93219b58993a58.001.1","noaa_urn:oid:2.49.0.1.840.0.8620cda7b420774b38e756061ed2ddf5ba315141.001.1","noaa_urn:oid:2.49.0.1.840.0.2d91517a15ffbe6d27381cd538327ba883270b8e.002.1","noaa_urn:oid:2.49.0.1.840.0.2d91517a15ffbe6d27381cd538327ba883270b8e.001.1","noaa_urn:oid:2.49.0.1.840.0.f0ff5710aad439dfa42717e24634e12691cdd406.001.1","noaa_urn:oid:2.49.0.1.840.0.baefa54b77819e2f2be53d97b9dcee6c2c2d666d.001.1","noaa_urn:oid:2.49.0.1.840.0.d93911dd74c48bc11893596db260f43902f1e775.001.1","noaa_urn:oid:2.49.0.1.840.0.9b0f30a3345055468352497e5196dcd86eb3b13f.001.1","noaa_urn:oid:2.49.0.1.840.0.b54931998ce39f7eef0cc5cab74db3b57d792732.001.1","noaa_urn:oid:2.49.0.1.840.0.bff8a8c261cb4df709f2adb9142d2f66ac73f1fe.002.1","noaa_urn:oid:2.49.0.1.840.0.bff8a8c261cb4df709f2adb9142d2f66ac73f1fe.001.1","noaa_urn:oid:2.49.0.1.840.0.5bb57c45407f56be744800477b933a13cfc54d87.003.1","noaa_urn:oid:2.49.0.1.840.0.5bb57c45407f56be744800477b933a13cfc54d87.002.1","noaa_urn:oid:2.49.0.1.840.0.5bb57c45407f56be744800477b933a13cfc54d87.001.1","noaa_urn:oid:2.49.0.1.840.0.e93313e6e3da7fa46e54e2e1537a4ccc5339ed8f.001.1","noaa_urn:oid:2.49.0.1.840.0.0682b85f8d84dc1221053a757f98dadc15d85d56.001.1","noaa_urn:oid:2.49.0.1.840.0.fd00ac2e4ec71dbe345676646b3f9e3b299584c8.001.1","noaa_urn:oid:2.49.0.1.840.0.14d88eff1f4a816551df187d53454e68b89e3814.001.1","noaa_urn:oid:2.49.0.1.840.0.a3674f214d2b1c1672dc0a722d1cacc61d1a1ec6.003.1","noaa_urn:oid:2.49.0.1.840.0.a3674f214d2b1c1672dc0a722d1cacc61d1a1ec6.001.1","noaa_urn:oid:2.49.0.1.840.0.a3674f214d2b1c1672dc0a722d1cacc61d1a1ec6.002.1","noaa_urn:oid:2.49.0.1.840.0.a3674f214d2b1c1672dc0a722d1cacc61d1a1ec6.004.1","noaa_urn:oid:2.49.0.1.840.0.a3674f214d2b1c1672dc0a722d1cacc61d1a1ec6.005.1","noaa_urn:oid:2.49.0.1.840.0.46e47c16c817451a833d3cd99ec24f768303b543.001.1","noaa_urn:oid:2.49.0.1.840.0.2effc5ab371027db5de3dc880d70153cf9b4acbe.001.1","noaa_urn:oid:2.49.0.1.840.0.d13ac17f4171bedc728e6b51ac9337effedb6ca8.001.1","noaa_urn:oid:2.49.0.1.840.0.37c69c411cf1598cdddeb5f4ed241eb77f6b7219.002.1","noaa_urn:oid:2.49.0.1.840.0.37c69c411cf1598cdddeb5f4ed241eb77f6b7219.004.1","noaa_urn:oid:2.49.0.1.840.0.37c69c411cf1598cdddeb5f4ed241eb77f6b7219.003.1"] |
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.
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