Coastal Flood — Coastal Nassau, Florida

2020-10-17 to 2020-10-19 · Coastal Nassau, Florida

Event narrative

The peak high tide was 2.05 MHHW datum at the Fernandina Beach NOS tide gauge. This was within the minor tidal flooding stage for the site which begins at 2 ft MHHW. On 10/18, the peak tide was 2.3 ft MHHW. On 10/19 at 1154 am, the high tide reached 2.26 ft MHHW.

Wider weather episode

Strong surface high pressure persisted NE of the local area with a strong surge of NE flow across the local waters through Oct 17th through the 19th. The strong onshore flow combined with seasonally high King tides produced tidal flooding over the course of 3 days, with the peak of the event Monday Oct 19th. Widespread Minor tidal flooding impacted the Atlantic coast and locations within the St. Johns River basin with a few locations peaking at Moderate tidal flooding along the Atlantic coast.

Source: NOAA Storm Events Database, event_id 923932. Narrative written by the NWS forecast office that issued the report.