This alert expired on 24 June 2026 at 23:31 UTC. It is kept here as a record.
It is the 21st strongest of the 30 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: Severe Thunderstorm Warning issued June 24 at 6:21PM CDT until June 24 at 6:30PM CDT by NWS St Louis MO
An estimated 137,839 people live within 50 km of this point.
Nearby, since 15 March 2026
- March 16, 2026 · score 48 · 19.6 km
- June 8, 2026 · score 43 · 21.9 km
How we know
Confirmed by 2 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 84 % 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) | 43 / 100 |
| Our confidence | 84% |
| Coordinates | 39.2060, -90.0640 |
| Nearest City | Godfrey (29 km) |
| Population Exposed | 137.8K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-06-24T23:21:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.670c6b13f0b21dca6bbb784503f3e79a6b6250c8.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Macoupin, IL |
| Headline | Severe Thunderstorm Warning issued June 24 at 6:21PM CDT until June 24 at 6:30PM CDT by NWS St Louis MO |
| Expires | 2026-06-24T18:31:00-05:00 |
| SenderName | NWS St Louis MO |
| HasExactCoords | true |
| Iem TypeSummary | R |
| Iem Magnitude | 1.02 |
| Iem Unit | Inch |
| Iem City | 2 N Alexander |
| Iem County | Morgan |
| Iem State | IL |
| Iem Wfo | ILX |
| Iem Remark | 1.02 inches of rain fell this afternoon reported by SWOP observer. |
| MergedSources | [{"id":"iem_R_39.760_-90.040_1782334320000","source":"iem","severity":"low","severityValue":25,"timestamp":1782334320000,"latitude":39.76,"longitude":-90.04}] |
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 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.
Want to know when something happens near Godfrey?
Calamity.live data shows a weather event with CalamityScore 43/100, near Godfrey (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.