Calamity
mediumSevere weatherCalamity Score: 34

Severe weather in United States

HenryUnited StatesNOAA

This alert expired on 2 June 2026 at 01:45 UTC. It is kept here as a record.

It is the 4th strongest of the 73 detections recorded within 20 km of this point since 2 April 2026. Another comparable one was recorded here earlier the same day. 11 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flood Warning issued May 31 at 8:31PM CDT until June 3 at 3:00AM CDT by NWS Kansas City/Pleasant Hill MO

An estimated 19,927 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 34 out of 100, at 79 % confidence.

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

Event Data

TypeSevere weather
Severitymedium
Calamity Score (ours)34 / 100
Our confidence79%
Coordinates38.4425, -93.9063
Nearest CityWarrensburg (38 km)
Population Exposed19.9K within 50 km
Impact Tiersignificant
Timestamp2026-06-02T19:30:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flood Warning_noaa_urn:oid:2.49.0.1.840.0.1a6730ad4abc49853563f59a07780298

Score Breakdown

35
intensity
40
population
0
cascading
80
historical

Technical Details

EventFlood Warning
UrgencyExpected
CertaintyLikely
AreaDescJohnson, MO; Pettis, MO; Cooper, MO; Saline, MO; Cass, MO; Henry, MO; Johnson, MO and 7 more areas
HeadlineFlood Warning issued May 31 at 8:31PM CDT until June 3 at 3:00AM CDT by NWS Kansas City/Pleasant Hill MO
Expires2026-06-01T20:45:00-05:00
SenderNameNWS Kansas City/Pleasant Hill MO
HasExactCoordstrue
MergedCount11
MergedIds["noaa_urn:oid:2.49.0.1.840.0.1a6730ad4abc49853563f59a07780298281944dc.001.1","noaa_urn:oid:2.49.0.1.840.0.10ced08c6a502899f82d19531475ce0fdd365c91.001.1","noaa_urn:oid:2.49.0.1.840.0.a92338e6fa1cf688d8649b75c94dc5808ea60728.001.1","noaa_urn:oid:2.49.0.1.840.0.c4e689f5a5901f6b12b3ef22eb273bd7ef923207.001.1","noaa_urn:oid:2.49.0.1.840.0.c4e689f5a5901f6b12b3ef22eb273bd7ef923207.002.1","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:2.49.0.1.840.0.54159595377c85e3195deb9c7c0ebb86dbc6e3fa.001.1","noaa_urn:oid:2.49.0.1.840.0.56152645cfa73fe7f0042b3aa4927e0259f40d53.001.1","noaa_urn:oid:2.49.0.1.840.0.4d25dfe1b42523337210a0ffe0233545961bdf85.001.1"]

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 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.

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Calamity.live data shows a weather event with CalamityScore 34/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.