Coastal Flood in Coastal Duval, Florida

On 10/3, the gauge at Pottsburg Creek along U.S.

Highway 90 reached 2.3 ft MHHW datum.

Moderate flooding begins at 2.2 ft MHHW at

this location. At 7:30 pm on 10/3, the gauge at Fulton Mariners Point along the

St. Johns River reached 2.12 ft MHHW above

normally dry ground around 7:30 pm. Moderate

tidal flooding begins at 2.1 ft MHHW for

this location. At 9 pm on 10/3, the gauge at Pottsburg Creek along U.S.

Highway 90 reached 2.3 ft MHHW datum.

Moderate flooding begins at 2.2 ft MHHW at

this location.

At 9:43 pm on 10/3, a mesonet station XJAK Jacksonville measured a

wind gust of 41 mph.

An extended duration nor'easter developed on September 30th and continued through October 6th. This event produced an extended period onshore flow combined with a period of high astronomical tides (spring or neap tides). The higher-than-normal tides combined with storm surge with the local nor'easter produced minor to moderate tidal flooding daily around high tides. The more impacted tidal flooding locations included the St. Johns River basin between downtown Jacksonville and Satsuma as well as the Intracoastal Waterway of St. Johns and Flagler counties were several days of moderate tidal flooding occurred in early October. Moderate tidal flood impacts include structures surrounded by tidal flood water and inundation of some roads.