This alert expired on 6 August 2026 at 21:00 UTC. It is kept here as a record.
No stronger detection stands among the 15 recorded within 20 km of this point since 26 April 2026 — 5 others scored the same. The last comparable one was on 3 August 2026. 3 more were recorded here in the fortnight before it.
What the source measured
NOAA reported: Special Marine Warning issued August 6 at 3:58PM EDT until August 6 at 5:00PM EDT by NWS Tampa Bay Ruskin FL
An estimated 1,145,016 people live within 50 km of this point.
Nearby, since 26 April 2026
- August 3, 2026 · score 52 · 1.7 km
- July 27, 2026 · score 48 · 10.8 km
- May 12, 2026 · score 48 · 11.9 km
How we know
Confirmed by 7 independent sources, including NOAA.
Our own score for this event is 52 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
| Type | Severe Weather |
| Severity | Medium |
| Calamity Score (ours) | 52 / 100 |
| Our confidence | 91% |
| Coordinates | 28.0871, -82.9714 |
| Nearest City | Palm Harbor (21 km) |
| Population Exposed | 1.1M within 50 km |
| Impact Tier | significant |
| Timestamp | 2026-08-06T19:58:00.000Z |
| Source | https://api.weather.gov/alerts/urn:oid:2.49.0.1.840.0.05304103be2ef534a241a25bf99185c554a43a78.001.1 |
Score Breakdown
Technical Details
| Event | Special Marine Warning |
| Urgency | Immediate |
| Certainty | Likely |
| AreaDesc | Coastal 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 |
| Headline | Special Marine Warning issued August 6 at 3:58PM EDT until August 6 at 5:00PM EDT by NWS Tampa Bay Ruskin FL |
| Expires | 2026-08-06T17:00:00-04:00 |
| SenderName | NWS Tampa Bay Ruskin FL |
| HasExactCoords | true |
| Iem TypeSummary | G |
| Iem Magnitude | 41 |
| Iem Unit | MPH |
| Iem City | Tampa International Apr |
| Iem County | Hillsborough |
| Iem State | FL |
| Iem Wfo | TBW |
| Iem Remark | Mesonet station 2009W FSWN Steinbrenner Field. |
| MergedSources | [{"id":"iem_M_27.770_-82.570_1786043280000","source":"iem","severity":"low","severityValue":25,"timestamp":1786043280000,"latitude":27.77,"longitude":-82.57},{"id":"iem_G_28.020_-82.330_1786041300000","source":"iem","severity":"low","severityValue":25,"timestamp":1786041300000,"latitude":28.02,"longitude":-82.33},{"id":"iem_M_27.610_-82.760_1786045380000","source":"iem","severity":"low","severityValue":25,"timestamp":1786045380000,"latitude":27.61,"longitude":-82.76},{"id":"iem_M_27.600_-82.650_1786045440000","source":"iem","severity":"low","severityValue":25,"timestamp":1786045440000,"latitude":27.6,"longitude":-82.65},{"id":"iem_G_27.910_-82.690_1786044780000","source":"iem","severity":"low","severityValue":25,"timestamp":1786044780000,"latitude":27.91,"longitude":-82.69},{"id":"iem_G_27.980_-82.510_1786043400000","source":"iem","severity":"low","severityValue":25,"timestamp":1786043400000,"latitude":27.98,"longitude":-82.51}] |
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.
Want to know when something happens near Palm Harbor?
Calamity.live data shows a weather event with CalamityScore 52/100, near Palm Harbor (United States), based on data from noaa. Source: Calamity.live, a platform aggregating real-time data from 185 scientific monitoring sources.