This alert expired on 6 August 2026 at 22:00 UTC. It is kept here as a record.
It is the 11th strongest of the 46 detections recorded within 20 km of this point since 27 April 2026. Another comparable one was recorded here earlier the same day. 8 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Severe Thunderstorm Warning issued August 6 at 4:02PM CDT until August 6 at 5:00PM CDT by NWS Springfield MO
An estimated 226,297 people live within 50 km of this point.
Nearby, since 27 April 2026
- August 6, 2026 · score 43 · 8.7 km
- July 5, 2026 · score 43 · 11.9 km
- June 13, 2026 · score 43 · 14.7 km
How we know
Confirmed by 6 independent sources, including NOAA.
Our own score for this event is 43 out of 100, at 90 % 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 | 90% |
| Coordinates | 37.2282, -92.9506 |
| Nearest City | Springfield (31 km) |
| Population Exposed | 226.3K within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T21:02:00.000Z |
| Source | https://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.28fe21efd152c11f78e804cc26a05477 |
Score Breakdown
Technical Details
| Event | Severe Thunderstorm Warning |
| Urgency | Immediate |
| Certainty | Observed |
| AreaDesc | Christian, MO; Douglas, MO; Greene, MO; Webster, MO; Wright, MO; Greene, MO; Polk, MO; Webster, MO; Dallas, MO; Greene, MO; Laclede, MO; Webster, MO; Wright, MO |
| Headline | Severe Thunderstorm Warning issued August 6 at 4:02PM CDT until August 6 at 5:00PM CDT by NWS Springfield MO |
| Expires | 2026-08-06T17:00:00-05:00 |
| SenderName | NWS Springfield MO |
| HasExactCoords | true |
| MergedCount | 3 |
| MergedIds | ["noaa_urn:oid:2.49.0.1.840.0.28fe21efd152c11f78e804cc26a05477f48e4a59.001.1","noaa_urn:oid:2.49.0.1.840.0.78741f0c5b36ae19bbf0fa189357b6d06af7e917.001.1","noaa_urn:oid:2.49.0.1.840.0.868d5708e2ffe23ef8a42dae650e3ac01ce59be4.001.1"] |
| Iem TypeSummary | H |
| Iem Magnitude | 1 |
| Iem Unit | Inch |
| Iem City | 3 N Northview |
| Iem County | Webster |
| Iem State | MO |
| Iem Wfo | SGF |
| Iem Remark | Quarter sized hail was reported. |
| MergedSources | [{"id":"iem_H_37.460_-93.270_1786045560000","source":"iem","severity":"low","severityValue":25,"timestamp":1786045560000,"latitude":37.46,"longitude":-93.27},{"id":"iem_H_37.320_-92.980_1786048500000","source":"iem","severity":"low","severityValue":25,"timestamp":1786048500000,"latitude":37.32,"longitude":-92.98},{"id":"iem_H_37.330_-93.580_1786047120000","source":"iem","severity":"low","severityValue":25,"timestamp":1786047120000,"latitude":37.33,"longitude":-93.58},{"id":"iem_G_37.240_-93.400_1786048800000","source":"iem","severity":"low","severityValue":25,"timestamp":1786048800000,"latitude":37.24,"longitude":-93.4},{"id":"iem_H_37.320_-92.980_1786048620000","source":"iem","severity":"low","severityValue":25,"timestamp":1786048620000,"latitude":37.32,"longitude":-92.98}] |
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 Springfield?
Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.