Calamity
CriticalSevere WeatherCS: 46 · v1

Severe Weather in United States

United StatesNOAA

Right now

The most recent data we hold from NOAA arrived 8 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 19 May 2026 at 00:33 UTC. It is kept here as a record.

No stronger detection stands among the 34 recorded within 20 km of this point since 15 March 2026 — 9 others scored the same. Another comparable one was recorded here earlier the same day. 16 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Tornado Warning issued May 18 at 7:23PM CDT until May 18 at 7:30PM CDT by NWS Omaha/Valley NE

How we know

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

Our own score for this event is 46 out of 100.

This is our versioned heuristic index, not source severity or a calibrated probability. Urban PEI does not count unique people.

Computed under scoring rules v1. Rows carrying other versions were judged by different rules and are not directly comparable.

Event Data

TypeSevere Weather
SeverityCritical
Calamity Score (ours)46 / 100
Legacy data-support index0.61/1
Coordinates40.3914, -94.7471
Nearest CitySaint Joseph (70 km)
Urban exposure index (PEI)0 within 50 km
Impact Tierminor
Date2026-05-19 — time not reported by the source
Sourcehttps://api.weather.gov/alerts/merged_Tornado Warning_noaa_urn:oid:2.49.0.1.840.0.6a190bf23949cf6bd1cb6e5698a05314

Physical priority index · v1. Heuristic priority, not calibrated probability, predictive accuracy or damage. The legacy data-support index combines assigned source support and field availability. Urban PEI is distance-weighted and does not count unique people; zero does not establish that nobody is present. Model cards.

Source and revision timeline

Source: noaa. Occurrence: 2026-05-19 — time not reported.

First archived: 2026-05-19T00:24:15.252Z. Material modification: not recorded.

Retained revisions are prospective; earlier versions may be unavailable. No revision entry does not prove that a record never changed.

Score Breakdown

95
intensity
0
Urban PEI term
0
Scenario weight
80
Recorded reference / batch anomaly

Technical Details

EventTornado Warning
UrgencyImmediate
CertaintyObserved
AreaDescRichardson, NE; Harrison, MO; Worth, MO; Jackson, KS and 5 more areas
HeadlineTornado Warning issued May 18 at 7:23PM CDT until May 18 at 7:30PM CDT by NWS Omaha/Valley NE
Expires2026-05-18T19:33:00-05:00
SenderNameNWS Omaha/Valley NE
HasExactCoordstrue
MergedCount8
MergedIds["noaa_urn:oid:2.49.0.1.840.0.6a190bf23949cf6bd1cb6e5698a05314f82e83a4.001.1","noaa_urn:oid:2.49.0.1.840.0.c32652d346bc5d9aee6bcc0f9d7370b1e0a1d5dd.001.1","noaa_urn:oid:2.49.0.1.840.0.fd57f12561bb30e813c6ff27bee8b65ac8993b48.001.1","noaa_urn:oid:2.49.0.1.840.0.4643a42a9cc30f3924ba6dfb6edea9bcafafcbab.001.1","noaa_urn:oid:2.49.0.1.840.0.61272742b9c9e57eb25d8885b2e42bf27f5d0492.001.1","noaa_urn:oid:2.49.0.1.840.0.331653a5b919c31d9c099a36fd38024212cda1dd.001.1","noaa_urn:oid:2.49.0.1.840.0.267e21ab71460f6eb72041eb988ff07764561204.002.1","noaa_urn:oid:2.49.0.1.840.0.3a6f7025c41a84605b79a747fe7c1efd15e40715.001.1"]

Safety Information

If a tornado warning is issued: go to a basement or an interior room on the lowest floor, away from windows. A vehicle and a mobile home are not shelter. Cover your head and neck. Wait for the official all-clear before going outside, and watch for downed power lines and gas leaks afterwards.

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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