Right now
The most recent data we hold from NOAA arrived 8 minutes ago, and this point is in it.
3 other detections within 20 km in the last 24 hours, the nearest <1 km from here.
This alert is in force until 3 October 2026, 14:45 UTC.
No stronger detection stands among the 41 recorded within 20 km of this point since 13 March 2026 — 38 others scored the same. Another comparable one was recorded here earlier the same day. 40 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Flood Warning issued October 2 at 9:43PM CDT until October 4 at 1:00PM CDT by NWS Milwaukee/Sullivan WI
Urban PEI: 1,361,763 within a heuristic 50 km radius; not unique people.
Nearby, since 13 March 2026
- September 25, 2026 · score 46 · 7.9 km
- September 24, 2026 · score 46 · 7.9 km
- September 23, 2026 · score 46 · 7.9 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 46 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 v5. Rows carrying other versions were judged by different rules and are not directly comparable.
Event Data
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 46 / 100 |
| Legacy data-support index | 0.81/1 |
| Coordinates | 42.5086, -88.0736 |
| Nearest City | Pleasant Prairie (13 km) |
| Urban exposure index (PEI) | 1.4M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-10-03T02:43:00.000Z |
| Source | https://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.1e831bb71c79c8686c7ea911a7d1abc28ef25abc.001.1 |
Physical priority index · v5. 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: 2026-10-03T02:43:00.000Z.
First archived: 2026-10-03T02:46:17.497Z. 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 |
| MessageId | urn:oid:2.49.0.1.840.0.1e831bb71c79c8686c7ea911a7d1abc28ef25abc.001.1 |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Lake, IL; Kenosha, WI; Lake, IL |
| Headline | Flood Warning issued October 2 at 9:43PM CDT until October 4 at 1:00PM CDT by NWS Milwaukee/Sullivan WI |
| Expires | 2026-10-03T09:45:00-05:00 |
| SenderName | NWS Milwaukee/Sullivan WI |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.39b7e7ec4298ab6737433e498bda9b81f20a0c78.001.1","noaa_urn:oid:2.49.0.1.840.0.3a264cdf8102aa5fc9e3249f4bf654b1affca786.002.1"] |
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.
Review the area, threshold and delivery channel in your account.
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