Calamity
MediumSevere WeatherCS: 37 · v1

Severe Weather near Harrisburg

DauphinUnited StatesNOAA

Right now

The most recent data we hold from NOAA arrived 10 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 12 June 2026 at 00:00 UTC. It is kept here as a record.

It is the 78th strongest of the 132 detections recorded within 20 km of this point since 12 March 2026. The last comparable one was on 20 May 2026.

What the source measured

NOAA reported: Severe Thunderstorm Warning issued June 11 at 7:47PM EDT until June 11 at 8:00PM EDT by NWS Binghamton NY

Urban PEI: 213,687 within a heuristic 50 km radius; not unique people.

Nearby, since 12 March 2026

How we know

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

Our own score for this event is 37 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)37 / 100
Legacy data-support index0.80/1
Coordinates40.1665, -76.7085
Nearest CityHarrisburg (19 km)
Urban exposure index (PEI)213.7K within 50 km
Impact Tiersignificant
Date2026-06-11 — time not reported by the source
Sourcehttps://api.weather.gov/alerts/merged_Severe Thunderstorm Warning_noaa_urn:oid:2.49.0.1.840.0.fe8b7b7dfca142fa11ea21c8a079ac14

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: 2026-06-11 — time not reported.

First archived: 2026-06-11T23:48:25.012Z. 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

35
intensity
70
Urban PEI term
0
Scenario weight
18
Recorded reference / batch anomaly

Technical Details

EventSevere Thunderstorm Warning
UrgencyImmediate
CertaintyObserved
AreaDescBroome, NY; Chenango, NY; Delaware, NY; Otsego, NY; Lackawanna, PA; Luzerne, PA; Susquehanna, PA; Wayne, PA; Wyoming, PA; Berks, PA; Carbon, PA; Lehigh, PA; Columbia, PA; Dauphin, PA; Lebanon, PA; Lycoming, PA; Montour, PA; Northumberland, PA; Schuylkill, PA; Sullivan, PA and 3 more areas
HeadlineSevere Thunderstorm Warning issued June 11 at 7:47PM EDT until June 11 at 8:00PM EDT by NWS Binghamton NY
Expires2026-06-11T20:00:00-04:00
SenderNameNWS Binghamton NY
HasExactCoordstrue
MergedCount6
MergedIds["noaa_urn:oid:2.49.0.1.840.0.fe8b7b7dfca142fa11ea21c8a079ac14d584b3a5.002.1","noaa_urn:oid:2.49.0.1.840.0.e2a697915470cb231ccaa09c1c3cbf58ad779965.001.1","noaa_urn:oid:2.49.0.1.840.0.fd32b82b688ce692fce9dfddf5121e10dddda5fb.001.1","noaa_urn:oid:2.49.0.1.840.0.530af76c05ffcf72a17f538856e05f663d31f393.001.1","noaa_urn:oid:2.49.0.1.840.0.31854699018cab08234078e441f35e19d8c3537d.001.1","noaa_urn:oid:2.49.0.1.840.0.5b7dd09fa4ad97260dc9ec8f5d19a749dcb49b7a.001.1"]

Safety Information

Always follow official guidance from your local emergency management agency. This platform provides scientific monitoring data and is not a substitute for official warnings. If you are in immediate danger, contact your local emergency number.

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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