Calamity
mediumSevere weatherCalamity Score: 43

Severe weather in United States

United StatesNOAA

This alert expired on 31 July 2026 at 23:15 UTC. It is kept here as a record.

No stronger detection stands among the 33 recorded within 20 km of this point since 16 March 2026 — 7 others scored the same. Another comparable one was recorded here earlier the same day. 13 more were recorded here in the fortnight before it.

What the source measured

NOAA reported: Special Marine Warning issued July 31 at 7:06PM EDT until July 31 at 7:15PM EDT by NWS Tallahassee FL

An estimated 201,731 people live within 50 km of this point.

Nearby, since 16 March 2026

How we know

Confirmed by 2 independent sources, including NOAA.

Our own score for this event is 43 out of 100, at 85 % 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 confidence85%
Coordinates30.0711, -84.0033
Nearest CityTallahassee (49 km)
Population Exposed201.7K within 50 km
Impact Tiersignificant
Timestamp2026-07-31T23:06:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.22da103053c48dc8d2998709b5810b1077d7c762.001.1

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSpecial Marine Warning
UrgencyImmediate
CertaintyLikely
AreaDescApalachee Bay or Coastal Waters From Keaton Beach to Ochlockonee River Fl out to 20 Nm
HeadlineSpecial Marine Warning issued July 31 at 7:06PM EDT until July 31 at 7:15PM EDT by NWS Tallahassee FL
Expires2026-07-31T19:15:00-04:00
SenderNameNWS Tallahassee FL
HasExactCoordstrue
Iem TypeSummaryG
Iem Magnitude46
Iem UnitMPH
Iem City1 NNE Saint Marks
Iem CountyWakulla
Iem StateFL
Iem WfoTAE
Iem RemarkAn ambient station (Purdom Station) gusted to 46 mph.
MergedSources[{"id":"iem_G_30.170_-84.200_1785536040000","source":"iem","severity":"low","severityValue":25,"timestamp":1785536040000,"latitude":30.17,"longitude":-84.2}]

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 (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 188 scientific monitoring sources.