Calamity
MediumSevere WeatherCS: 34 · v1

Severe Weather in United States

CusterUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 4 hours 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 10 June 2026 at 05:00 UTC. It is kept here as a record.

No stronger detection stands among the 182 recorded within 20 km of this point since 27 April 2026 — 25 others scored the same. Another comparable one was recorded here earlier the same day. 25 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Tornado Watch issued June 9 at 5:46PM CDT until June 10 at 12:00AM CDT by NWS Hastings NE

Nearby, since 27 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.

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
SeverityMedium
Calamity Score (ours)34 / 100
Legacy data-support index0.60/1
Coordinates41.5000, -99.9000
Nearest CityNorth Platte (84 km)
Urban exposure index (PEI)0 within 50 km
Impact Tierminor
Timestamp2026-06-09T22:46:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Tornado Watch_noaa_urn:oid:2.49.0.1.840.0.5489b28699f2ecc47a883e4e037448a3

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: 2026-06-09T22:46:00.000Z.

First archived: 2026-06-10T01:37:30.876Z. 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

65
intensity
0
Urban PEI term
0
Scenario weight
80
Recorded reference / batch anomaly

Technical Details

EventTornado Watch
UrgencyFuture
CertaintyPossible
AreaDescAdams, NE; Buffalo, NE; Clay, NE; Dawson, NE; Fillmore, NE; Gosper, NE; Greeley, NE; Hall, NE; Hamilton, NE; Howard, NE; Kearney, NE; Merrick, NE; Nance, NE; Phelps, NE; Polk, NE; Sherman, NE; Valley, NE; York, NE; Arthur, NE; Blaine, NE; Boyd, NE; Brown, NE; Cherry, NE; Custer, NE; Deuel, NE; Frontier, NE; Garden, NE; Garfield, NE; Grant, NE; Hayes, NE; Holt, NE; Hooker, NE; Keith, NE; Keya Paha, NE; Lincoln, NE; Logan, NE; Loup, NE; McPherson, NE; Perkins, NE; Rock, NE; Thomas, NE; Wheeler, NE
HeadlineTornado Watch issued June 9 at 5:46PM CDT until June 10 at 12:00AM CDT by NWS Hastings NE
Expires2026-06-10T00:00:00-05:00
SenderNameNWS Hastings NE
HasExactCoordsfalse
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.5489b28699f2ecc47a883e4e037448a311d80229.001.1","noaa_urn:oid:2.49.0.1.840.0.6a5ebea3713ecf67a3d71ee1dbc7c4e4f09f9f42.001.1"]

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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