This alert expired on 21 July 2026 at 21:15 UTC. It is kept here as a record.
It is the 31st strongest of the 65 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued July 21 at 3:25PM CDT until July 21 at 4:15PM CDT by NWS Paducah KY
An estimated 55,898 people live within 50 km of this point.
Nearby, since 15 March 2026
- July 10, 2026 · score 39 · 4.4 km
- May 31, 2026 · score 39 · 11.7 km
- June 26, 2026 · score 39 · 13.7 km
How we know
One source: NOAA. Not yet confirmed by a second, independent source.
Our own score for this event is 32 out of 100, at 79 % 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) | 32 / 100 |
| Our confidence | 79% |
| Coordinates | 37.1423, -89.5069 |
| Nearest City | Cape Girardeau (19 km) |
| Population Exposed | 55.9K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-07-21T20:25:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.42e8e11b4cbb9e8907344160b95e24e55538d1eb.001.1 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Alexander, IL; Scott, MO |
| Headline | Severe Thunderstorm Warning issued July 21 at 3:25PM CDT until July 21 at 4:15PM CDT by NWS Paducah KY |
| Expires | 2026-07-21T16:15:00-05:00 |
| SenderName | NWS Paducah KY |
| HasExactCoords | true |
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.
Calamity.live data shows a weather event with CalamityScore 32/100, near Cape Girardeau (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.