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 12 May 2026 at 19:15 UTC. It is kept here as a record.

It is one of only 3 we have recorded within 20 km of this point since 12 May 2026.

What the source measured

NOAA reported: Special Marine Warning issued May 12 at 1:47PM EDT until May 12 at 3:15PM EDT by NWS Tampa Bay Ruskin FL

An estimated 198,292 people live within 50 km of this point.

Nearby, since 12 May 2026

How we know

Confirmed by 4 independent sources, including NOAA.

Our own score for this event is 43 out of 100, at 91 % 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 confidence91%
Coordinates28.0320, -83.2800
Nearest CityClearwater (48 km)
Population Exposed198.3K within 50 km
Impact Tiersignificant
Timestamp2026-05-12T17:47:00.000Z
Sourcehttps://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.c92a0b5881a26b50387d7b24655f8cf4a0f5c4cc.001.1

Score Breakdown

35
intensity
70
population
0
cascading
80
historical

Technical Details

EventSpecial Marine Warning
UrgencyImmediate
CertaintyLikely
AreaDescCoastal waters from Tarpon Springs to Suwannee River FL out 20 NM; Coastal waters from Englewood to Tarpon Springs FL out 20 NM; Waters from Tarpon Springs to Suwannee River FL out 20 to 60 NM; Waters from Englewood to Tarpon Springs FL out 20 to 60 NM
HeadlineSpecial Marine Warning issued May 12 at 1:47PM EDT until May 12 at 3:15PM EDT by NWS Tampa Bay Ruskin FL
Expires2026-05-12T15:15:00-04:00
SenderNameNWS Tampa Bay Ruskin FL
HasExactCoordstrue
Iem TypeSummaryT
Iem City1 SSW Hudson
Iem CountyPasco
Iem StateFL
Iem WfoTBW
Iem RemarkRoof damage reported by Pasco Co Dispatch. Possible tornado.
MergedSources[{"id":"iem_M_28.370_-82.680_1778610600000","source":"iem","severity":"low","severityValue":25,"timestamp":1778610600000,"latitude":28.37,"longitude":-82.68},{"id":"iem_M_28.360_-82.710_1778610540000","source":"iem","severity":"low","severityValue":25,"timestamp":1778610540000,"latitude":28.36,"longitude":-82.71},{"id":"iem_T_28.350_-82.700_1778611020000","source":"iem","severity":"low","severityValue":25,"timestamp":1778611020000,"latitude":28.35,"longitude":-82.7}]

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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