Right now
The most recent data we hold from NOAA arrived 8 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 23:00 UTC. It is kept here as a record.
It is the 6th strongest of the 36 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: Severe Thunderstorm Warning issued July 3 at 5:37PM CDT until July 3 at 6:00PM CDT by NWS Quad Cities IA IL
Urban PEI: 54,852 within a heuristic 50 km radius; not unique people.
Nearby, since 16 March 2026
- July 3, 2026 · score 43 · 11.7 km
- July 4, 2026 · score 43 · 12.7 km
- August 11, 2026 · score 39 · 13.8 km
How we know
3 recorded sources include NOAA; independence is not established by this count.
Our own score for this event is 39 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) | 39 / 100 |
| Legacy data-support index | 0.89/1 |
| Coordinates | 41.9567, -89.5917 |
| Nearest City | Dixon (16 km) |
| Urban exposure index (PEI) | 54.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-03T22:37:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.266cdd810c6722cac666907bd6ed8704 |
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: 2026-07-03T22:37:00.000Z.
First archived: 2026-07-03T22:47:20.219Z. 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 | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Bureau, IL; Jo Daviess, IL; Stephenson, IL |
| Headline | Severe Thunderstorm Warning issued July 3 at 5:37PM CDT until July 3 at 6:00PM CDT by NWS Quad Cities IA IL |
| Expires | 2026-07-03T18:00:00-05:00 |
| SenderName | NWS Quad Cities IA IL |
| HasExactCoords | true |
| MergedCount | 2 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.266cdd810c6722cac666907bd6ed87049331703e.001.1","noaa_urn:oid:2.49.0.1.840.0.44f646c5d96f233aed5e10dfb49dc63979e6d74c.001.1"] |
| Iem TypeSummary | G |
| Iem Magnitude | 67 |
| Iem Unit | MPH |
| Iem City | 2 SE Compton |
| Iem County | Lee |
| Iem State | IL |
| Iem Wfo | LOT |
| Iem Remark | Personal weather station measured a peak wind gust of 67.3 mph. |
| MergedSources | [{"id":"iem_D_42.450_-89.080_1783096860000","source":"iem","severity":"low","severityValue":25,"timestamp":1783096860000,"latitude":42.45,"longitude":-89.08},{"id":"iem_G_41.670_-89.060_1783100220000","source":"iem","severity":"low","severityValue":25,"timestamp":1783100220000,"latitude":41.67,"longitude":-89.06}] |
Safety Information
Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.
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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