Coastal Flood — Northeast Coastal St. Johns County, Florida

2025-10-10 to 2025-10-11 · Northeast Coastal St. Johns County, Florida

Event narrative

The Tolomato River tide gauge (TOLF1) near the St. Augustine Airport peak at 2.42 ft MHHW around 1 pm on 10/10. On 10/11 around 1:54 pm local time, the gauge peaked at 2.57 ft MHHW. Moderate flooding begins at 2.3 ft MHHW at this location. The Vilano Boat Ramp flooded into the nearby parking lot the mornings of 10/10 and 10/11.

Nor'easter non-thunderstorm wind gusts ranged between 40-44 mph from the evening of 10/9 starting around 8 pm through the early morning of 10/10 during the peak of the event.

Wider weather episode

An extended duration local nor'easter wind event developed October 9th and persisted through the 12th between high pressure wedging down the SE US coast and a sharpening coastal trough axis over the local coastal waters. Gusty winds of 40-51 mph impacted coastal areas, with the strongest winds from 10/9 in the afternoon through 10/10 in the evening along the Duval county coast of 51 mph. Tidal flooding reached moderate levels along the coast, Intracoastal Waterway and inland within the St. Johns River and its tributaries 10/10 through 10/12. This inundation flooded roads and surrounded some vulnerable homes with flood water around high tides. Waves of showers moved onshore with localized flooding rainfall.

Source: NOAA Storm Events Database, event_id 1293082. Narrative written by the NWS forecast office that issued the report.