Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

GasconadeUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 5 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 1 June 2026 at 10:15 UTC. It is kept here as a record.

It is the 7th strongest of the 12 detections recorded within 20 km of this point since 27 April 2026. Another comparable one was recorded here earlier the same day. 2 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued June 1 at 4:54AM CDT until June 1 at 5:15AM CDT by NWS St Louis MO

Nearby, since 27 April 2026

How we know

Confirmed by 4 independent sources, including NOAA.

Our own score for this event is 22 out of 100, at 70 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)22 / 100
Our confidence70%
Coordinates38.4355, -91.6064
Nearest CityJefferson City (52 km)
Impact Tierminor
Timestamp2026-06-01T09:54:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.4cb7bb6210b1d7d0041f288d61fc434a

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescCrawford, MO; Gasconade, MO; Osage, MO; Franklin, MO; Gasconade, MO; Lincoln, MO; Montgomery, MO; Osage, MO; St. Charles, MO; Warren, MO; Maries, MO
HeadlineSevere Thunderstorm Warning issued June 1 at 4:54AM CDT until June 1 at 5:15AM CDT by NWS St Louis MO
Expires2026-06-01T05:15:00-05:00
SenderNameNWS St Louis MO
HasExactCoordstrue
MergedCount3
MergedIds["noaa_urn:oid:2.49.0.1.840.0.4cb7bb6210b1d7d0041f288d61fc434a638441a2.002.1","noaa_urn:oid:2.49.0.1.840.0.bbede64d046ec5315d478b0e89814c2cfca01aec.001.1","noaa_urn:oid:2.49.0.1.840.0.712b8799c4c91e87fe795715d5e36f8cd168babf.001.1"]
Spc ReportTypewind
Spc SpeedUNK
Spc Location1 NE Devil's Elbow
Spc CountyPulaski
Spc StateMO
Spc CommentsMSHP relayed report of a tree down on Highway Z near Trophy Lane. Time estimated from radar. (SGF)
MergedSources[{"id":"spc_wind_38.00_-92.12_4","source":"spc","severity":"medium","severityValue":45,"timestamp":1780289414658,"latitude":38,"longitude":-92.12},{"id":"spc_wind_37.90_-92.09_5","source":"spc","severity":"medium","severityValue":45,"timestamp":1780289414658,"latitude":37.9,"longitude":-92.09},{"id":"spc_wind_37.86_-92.05_6","source":"spc","severity":"medium","severityValue":45,"timestamp":1780289414658,"latitude":37.86,"longitude":-92.05}]

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.

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