Calamity
MediumSevere WeatherCalamity Score: 32

Severe Weather near Junction City

RileyUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 7 minutes ago, and this point is not in it. We record detections, not passes: an absence is not proof that nothing is there.

5 other detections within 20 km in the last 24 hours, the nearest 4 km from here.

This alert expired on 12 September 2026 at 21:45 UTC. It is kept here as a record.

It is the 20th strongest of the 52 detections recorded within 20 km of this point since 15 March 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 September 12 at 4:09PM CDT until September 12 at 4:45PM CDT by NWS Topeka KS

An estimated 80,929 people live within 50 km of this point.

Nearby, since 15 March 2026

How we know

Confirmed by 2 independent sources, including NOAA.

Our own score for this event is 32 out of 100, at 85 % confidence.

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

Computed under scoring rules v4. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityMedium
Calamity Score (ours)32 / 100
Our confidence85%
Coordinates39.2605, -96.9160
Nearest CityJunction City (27 km)
Population Exposed80.9K within 50 km
Impact Tiersignificant
Timestamp2026-09-12T21:09:00.000Z
Sourcehttps://api.weather.gov/alerts/urn%3Aoid%3A2.49.0.1.840.0.b7636e95cbcd8e669458b55f24d3fabe852ff6d6.001.1

Score Breakdown

35
intensity
55
population
0
cascading
18
historical

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescClay, KS; Dickinson, KS; Geary, KS; Riley, KS; Clay, KS
HeadlineSevere Thunderstorm Warning issued September 12 at 4:09PM CDT until September 12 at 4:45PM CDT by NWS Topeka KS
Expires2026-09-12T16:45:00-05:00
SenderNameNWS Topeka KS
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.b7636e95cbcd8e669458b55f24d3fabe852ff6d6.001.1","noaa_urn:oid:2.49.0.1.840.0.fdf0e459f2fcdf8bc2f4b02e98001431538d1a58.001.1"]
Spc ReportTypewind
Spc Speed59
Spc Location1 SSE Concordia
Spc CountyCloud
Spc StateKS
Spc Comments(TOP)
MergedSources[{"id":"spc_wind_39.55_-97.65_11","source":"spc","severity":"medium","severityValue":45,"timestamp":1789243560000,"latitude":39.55,"longitude":-97.65}]

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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