Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

MercerUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 12 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 7 June 2026 at 03:30 UTC. It is kept here as a record.

It is the 17th strongest of the 46 detections recorded within 20 km of this point since 17 March 2026. The last comparable one was on 6 June 2026. 6 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Flash Flood Warning issued June 6 at 7:06PM CDT until June 6 at 10:30PM CDT by NWS Kansas City/Pleasant Hill MO

How we know

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

Our own score for this event is 22 out of 100, at 60 % 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 confidence60%
Coordinates40.3222, -93.3926
Nearest CityKirksville (71 km)
Impact Tierminor
Timestamp2026-06-07T00:06:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Flash Flood Warning_noaa_urn:oid:2.49.0.1.840.0.2a9c5b080d46565c73e23782e6b8e263

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventFlash Flood Warning
UrgencyImmediate
CertaintyLikely
AreaDescDaviess, MO; Grundy, MO; Harrison, MO; Putnam, MO; Sullivan, MO
HeadlineFlash Flood Warning issued June 6 at 7:06PM CDT until June 6 at 10:30PM CDT by NWS Kansas City/Pleasant Hill MO
Expires2026-06-06T22:30:00-05:00
SenderNameNWS Kansas City/Pleasant Hill MO
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.2a9c5b080d46565c73e23782e6b8e26371ade15c.001.1","noaa_urn:oid:2.49.0.1.840.0.6af098800ad14914febed4db9fe3b76673513f7b.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.

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Calamity.live data shows a weather event with CalamityScore 22/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.