Calamity
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MediumSevere WeatherCS: 52 · v1

Severe Weather near Wilmington

New CastleUnited StatesSPC

Right now

Nothing else has been detected within 20 km in the last 24 hours.

Distance and hazards
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Reported by SPC 201 days ago.

It is the 3rd strongest of the 258 detections recorded within 20 km of this point since 12 March 2026. Another comparable one was recorded here earlier the same day. 108 more were recorded here in the fortnight before it.

What the source measured

SPC reported: Wind UNK kt near Rockland, New Castle, DE. ROCKLAND RD. IS CLOSED IN BOTH DIRECTIONS FROM MONTCHANIN CT. TO MONTCHANIN RD. DUE TO A TREE DOWN IN WIRES. Time estimated from radar. (PHI)

Urban PEI: 2,990,058 within a heuristic 50 km radius; not unique people.

Nearby, since 12 March 2026

How we know

2 recorded sources include SPC; independence is not established by this count.

Our own score for this event is 52 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)52 / 100
Legacy data-support index0.77/1
Coordinates39.7900, -75.5700
Nearest CityWilmington (5 km)
Urban exposure index (PEI)3.0M within 50 km
Impact Tiersignificant
Timestamp2026-03-17T02:48:00.000Z
Sourcehttps://www.spc.noaa.gov/climo/reports/today.html

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: spc. Occurrence: 2026-03-17T02:48:00.000Z.

First archived: 2026-03-17T07:00:08.060Z. 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
100
Urban PEI term
0
Scenario weight
80
Recorded reference / batch anomaly

Technical Details

ReportTypewind
SpeedUNK
LocationRockland
CountyNew Castle
StateDE
CommentsROCKLAND RD. IS CLOSED IN BOTH DIRECTIONS FROM MONTCHANIN CT. TO MONTCHANIN RD. DUE TO A TREE DOWN IN WIRES. Time estimated from radar. (PHI)
Iem TypeSummaryD
Iem CityRockland
Iem CountyNew Castle
Iem StateDE
Iem WfoPHI
Iem RemarkROCKLAND RD. IS CLOSED IN BOTH DIRECTIONS FROM MONTCHANIN CT. TO MONTCHANIN RD. DUE TO A TREE DOWN IN WIRES. Time estimated from radar.
MergedSources[{"id":"iem_D_39.790_-75.570_1773715680000","source":"iem","severity":"low","severityValue":25,"timestamp":1773715680000,"latitude":39.79,"longitude":-75.57}]

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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