Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

MercerUnited 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.

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.