Severe Severe Storm ● Closed
Special Marine Warning — Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM; Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM; Waters from Altamaha Sound GA to Fernandina Beach FL from 20 to 60 NM; Waters from Ferna
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
Special Marine Warning issued August 12 at 1:16PM EDT until August 12 at 2:15PM EDT by NWS Jacksonville FL
Measurements
| Coordinates | 30.1208, -81.2467 |
|---|---|
| Region | Coastal waters from Altamaha Sound to Fernandina Beach FL out 20 NM; Coastal waters from Fernandina Beach to St. Augustine FL out 20 NM; Waters from Altama |
| Expires | 2026-08-12T14:15:00-04:00 |
| Nws Urgency | Immediate |
| Nws Certainty | Likely |
Official source
Weather alert data courtesy of NOAA / National Weather Service
This is an official warning issued by the authority named above. Follow its instructions and those of your local emergency services.
Severity as published by US National Weather Service.
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Source updated 68 days ago (Aug 12, 2026 18:14 UTC) · we last heard from US National Weather Service 20 seconds ago
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