Calamity
MediumSevere WeatherCalamity Score: 43

Severe Weather in United States

United StatesNOAA

Right now

The most recent data we hold from NOAA arrived 35 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 27 August 2026 at 22:15 UTC. It is kept here as a record.

No stronger detection stands among the 16 recorded within 20 km of this point since 16 March 2026 — 14 others scored the same. The last comparable one was on 1 August 2026.

What the source measured

NOAA reported: Special Marine Warning issued August 27 at 4:10PM EDT until August 27 at 6:15PM EDT by NWS Melbourne FL

An estimated 259,860 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 4 independent sources, including NOAA.

Our own score for this event is 43 out of 100, at 89 % 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)43 / 100
Our confidence89%
Coordinates28.2520, -80.2260
Nearest CityMelbourne (42 km)
Population Exposed259.9K within 50 km
Impact Tiersignificant
Timestamp2026-08-27T20:10:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.023347a309e6f8f7acf9ae9becc273314f9181f0.001.1

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSpecial Marine Warning
UrgencyImmediate
CertaintyLikely
AreaDescVolusia-Brevard County Line to Sebastian Inlet 0-20 nm; Sebastian Inlet to Jupiter Inlet 0-20 nm; Volusia-Brevard County Line to Sebastian Inlet 20-60 nm
HeadlineSpecial Marine Warning issued August 27 at 4:10PM EDT until August 27 at 6:15PM EDT by NWS Melbourne FL
Expires2026-08-27T18:15:00-04:00
SenderNameNWS Melbourne FL
HasExactCoordstrue
Iem TypeSummaryM
Iem Magnitude47
Iem UnitMPH
Iem City2 SSW Roseland
Iem CountyIndian River
Iem StateFL
Iem WfoMLB
Iem RemarkSebastian Municipal Airport measured a peak wind gust of 47MPH/41KT from the east at 2:15 PM.
MergedSources[{"id":"iem_M_28.230_-80.600_1787856420000","source":"iem","severity":"low","severityValue":25,"timestamp":1787856420000,"latitude":28.23,"longitude":-80.6},{"id":"iem_M_28.640_-80.750_1787858700000","source":"iem","severity":"low","severityValue":25,"timestamp":1787858700000,"latitude":28.64,"longitude":-80.75},{"id":"iem_M_27.820_-80.500_1787854500000","source":"iem","severity":"low","severityValue":25,"timestamp":1787854500000,"latitude":27.82,"longitude":-80.5}]

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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Calamity.live data shows a weather event with CalamityScore 43/100 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.