Right now
The most recent data we hold from NOAA arrived 15 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 3 July 2026 at 23:45 UTC. It is kept here as a record.
It is the 2nd strongest of the 42 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Tornado Warning issued July 3 at 5:42PM CDT until July 3 at 6:45PM CDT by NWS Quad Cities IA IL
Urban PEI: 24,476 within a heuristic 50 km radius; not unique people.
Nearby, since 15 March 2026
- July 3, 2026 · score 67 · 1.8 km
- August 11, 2026 · score 39 · 20.4 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 58 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 | Critical |
| Calamity Score (ours) | 58 / 100 |
| Legacy data-support index | 0.88/1 |
| Coordinates | 42.2600, -89.7120 |
| Nearest City | Freeport (9 km) |
| Urban exposure index (PEI) | 24.5K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T22:42:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.396d2326dbbe5792c4cac94d43d3a13fc2d4593a.001.1 |
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: 2026-07-03T22:42:00.000Z.
First archived: 2026-07-03T23:02:57.034Z. 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 | Tornado Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Stephenson, IL |
| Headline | Tornado Warning issued July 3 at 5:42PM CDT until July 3 at 6:45PM CDT by NWS Quad Cities IA IL |
| Expires | 2026-07-03T18:45:00-05:00 |
| SenderName | NWS Quad Cities IA IL |
| HasExactCoords | true |
| Iem TypeSummary | D |
| Iem City | Rockton |
| Iem County | Winnebago |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | Multiple photos and reports of downed trees and power lines in and around Rockton including near MacTown Forest Preserve and Settlers Park. Time estimated by radar. |
| MergedSources | [{"id":"iem_D_42.520_-89.020_1783098000000","source":"iem","severity":"low","severityValue":25,"timestamp":1783098000000,"latitude":42.52,"longitude":-89.02},{"id":"iem_D_42.450_-89.070_1783096980000","source":"iem","severity":"low","severityValue":25,"timestamp":1783096980000,"latitude":42.45,"longitude":-89.07}] |
Safety Information
If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.
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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