Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

CassUnited 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 08:45 UTC. It is kept here as a record.

It is the 12th strongest of the 121 detections recorded within 20 km of this point since 2 April 2026. The last comparable one was on 27 April 2026. 9 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 31 at 11:41PM CDT until June 1 at 3:45AM CDT by NWS Wichita KS

An estimated 163,892 people live within 50 km of this point.

Nearby, since 2 April 2026

How we know

One source: NOAA. Not yet confirmed by a second, independent source.

Our own score for this event is 43 out of 100, at 80 % 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)43 / 100
Our confidence80%
Coordinates38.4912, -94.3483
Nearest CityRaymore (35 km)
Population Exposed163.9K within 50 km
Impact Tiersignificant
Timestamp2026-06-02T18:00:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.aa7af51a202fd0682f28807bf9a04a5a

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyExpected
CertaintyLikely
AreaDescGreenwood, KS; Ottawa, KS; Cass, MO; Henry, MO; Johnson, MO and 8 more areas
HeadlineFlood Warning issued May 31 at 11:41PM CDT until June 1 at 3:45AM CDT by NWS Wichita KS
Expires2026-06-01T03:45:00-05:00
SenderNameNWS Wichita KS
HasExactCoordstrue
MergedCount12
MergedIds["noaa_urn:oid:2.49.0.1.840.0.aa7af51a202fd0682f28807bf9a04a5ae3ef1589.001.1","noaa_urn:oid:2.49.0.1.840.0.cfbbed50fa6d877779ba8c2d919f94be07af11b9.002.1","noaa_urn:oid:2.49.0.1.840.0.a92338e6fa1cf688d8649b75c94dc5808ea60728.001.1","noaa_urn:oid:2.49.0.1.840.0.c4e689f5a5901f6b12b3ef22eb273bd7ef923207.002.1","noaa_urn:oid:2.49.0.1.840.0.c4e689f5a5901f6b12b3ef22eb273bd7ef923207.001.1","noaa_urn:oid:2.49.0.1.840.0.b3fe4490f665cd48c1b531be25003f3dd9500c3a.001.1","noaa_urn:oid:2.49.0.1.840.0.b7b90c93e3d0b75d89e83a507f37015dc65cd533.001.1","noaa_urn:oid:2.49.0.1.840.0.68ad2918f90662c944ea0d97553dd10279222014.001.1","noaa_urn:oid:2.49.0.1.840.0.4d25dfe1b42523337210a0ffe0233545961bdf85.001.1","noaa_urn:oid:2.49.0.1.840.0.6cd876d10d226691d102607b68d3e66b9c0415c7.001.1","noaa_urn:oid:2.49.0.1.840.0.1a6730ad4abc49853563f59a07780298281944dc.001.1","noaa_urn:oid:2.49.0.1.840.0.10ced08c6a502899f82d19531475ce0fdd365c91.001.1"]

Safety Information

During flooding: never walk, swim, or drive through floodwaters. Six inches of moving water can knock you down, and one foot of water can sweep away a vehicle. Move to higher ground if waters rise. After flooding, avoid contact with floodwater which may contain sewage, chemicals, or debris. Follow local emergency service guidance.

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.

Want to know when something happens in this area?

Share:XLinkedIn