Calamity
mediumSevere weatherCalamity Score: 43

Severe weather near Sebastian

Indian RiverUnited StatesNOAA

This alert expired on 5 July 2026 at 23:00 UTC. It is kept here as a record.

It is the 177th strongest of the 209 detections recorded within 20 km of this point since 15 March 2026. Another comparable one was recorded here earlier the same day. 7 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Special Marine Warning issued July 5 at 6:25PM EDT until July 5 at 7:00PM EDT by NWS Miami FL

An estimated 306,738 people live within 50 km of this point.

Nearby, since 15 March 2026

How we know

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

Our own score for this event is 43 out of 100, at 78 % confidence.

The score is ours, computed from intensity, exposed population and local history — not the source’s.

Event Data

TypeSevere weather
Severitymedium
Calamity Score (ours)43 / 100
Our confidence78%
Coordinates27.7801, -80.7008
Nearest CitySebastian (23 km)
Population Exposed306.7K within 50 km
Impact Tiersignificant
Timestamp2026-07-05T22:25:00.000Z
Sourcehttps://api.weather.gov/alerts/merged_Special Marine Warning_noaa_urn:oid:2.49.0.1.840.0.39678372e157158594d76ce74319eea9

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSpecial Marine Warning
UrgencyImmediate
CertaintyLikely
AreaDescLake Okeechobee; Flagler Beach to Volusia-Brevard County Line 0-20 nm; Volusia-Brevard County Line to Sebastian Inlet 0-20 nm
HeadlineSpecial Marine Warning issued July 5 at 6:25PM EDT until July 5 at 7:00PM EDT by NWS Miami FL
Expires2026-07-05T19:00:00-04:00
SenderNameNWS Miami FL
HasExactCoordstrue
MergedCount2
MergedIds["noaa_urn:oid:2.49.0.1.840.0.39678372e157158594d76ce74319eea94a51e321.001.1","noaa_urn:oid:2.49.0.1.840.0.a4c880c2270907eed658961d75bbb93188bbe2de.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 10 February 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, near Sebastian (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.