Calamity
MediumSevere WeatherCalamity Score: 22

Severe Weather in United States

United StatesNOAA

Right now

The most recent data we hold from NOAA arrived 3 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 28 May 2026 at 21:16 UTC. It is kept here as a record.

No stronger detection stands among the 9 recorded within 20 km of this point since 28 May 2026 — 4 others scored the same. Another comparable one was recorded here earlier the same day. One more was recorded here in the fortnight before it.

What the source measured

NOAA reported: Special Marine Warning issued May 28 at 5:06PM EDT until May 28 at 5:15PM EDT by NWS Wilmington NC

How we know

Confirmed by 5 independent sources, including NOAA.

Our own score for this event is 22 out of 100, at 68 % 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 confidence68%
Coordinates33.7540, -77.7040
Nearest CityWilmington (59 km)
Impact Tierminor
Timestamp2026-05-28T21:06:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.2ebcc907660e8f0676f5ef5df0b67b8b7f79c332.001.1

Score Breakdown

35
intensity
0
population
0
cascading
80
historical

Technical Details

EventSpecial Marine Warning
UrgencyImmediate
CertaintyLikely
AreaDescCoastal waters from Surf City to Cape Fear NC out 20 nm; Coastal waters from Cape Fear NC to Little River Inlet SC out 20 NM; Waters from Surf City NC to Little River Inlet SC from 20 to 60 NM
HeadlineSpecial Marine Warning issued May 28 at 5:06PM EDT until May 28 at 5:15PM EDT by NWS Wilmington NC
Expires2026-05-28T17:16:00-04:00
SenderNameNWS Wilmington NC
HasExactCoordstrue
Iem TypeSummaryM
Iem Magnitude53
Iem Unitmph
Iem City1 ENE Wrightsville Beac
Iem CountyAMZ250
Iem StateNC
Iem WfoILM
MergedSources[{"id":"iem_G_34.280_-77.920_1779994620000","source":"iem","severity":"low","severityValue":25,"timestamp":1779994620000,"latitude":34.28,"longitude":-77.92},{"id":"iem_D_34.270_-77.810_1779995400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779995400000,"latitude":34.27,"longitude":-77.81},{"id":"iem_D_34.300_-77.830_1779995400000","source":"iem","severity":"low","severityValue":25,"timestamp":1779995400000,"latitude":34.3,"longitude":-77.83},{"id":"iem_M_34.210_-77.790_1779995520000","source":"iem","severity":"low","severityValue":25,"timestamp":1779995520000,"latitude":34.21,"longitude":-77.79}]

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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