Tropical Storm — Coastal Duval, Florida

2020-11-11 to 2020-11-12 · Coastal Duval, Florida

Event narrative

There was no significant damage reported across Duval County. Peak measured winds and wind gusts included the following observations: on 11/11 at 8:10 pm, a Weatherflow site on the St. Johns River downtown Terminal Channel recorded 40 mph (116 deg) with a peak guts of 50 mph. On 11/12 at 7:47 am, a Weatherflow site on Buck Island in the St. Johns River east of Mayport measured a peak wind of 40 mph (158 deg) with a gust of 47 (158 deg) at 7:46 am. On 11/12 at 7:53 am, Craig Airfield ASOS measured 25 mph (160 deg) with a gust of 46 mph. On 11/12 at 8:14 am, the Weatherflow station at Huguenot Park measured 45 mph (147 deg) with a peak gust of 52 mph (148 deg) at 8:12 am. At the Jacksonville International Airport ASOS on 11/12 at 8:16 am, the peak wind was 22 mph (130 deg) with a gust of 33 mph (130 deg) at 8:16 am. Marine observation from the NOS Station at Mayport included 20 mph (140 deg) on 11/12 at 9:30 am with a peak gust of 36 mph (140 deg). Maximum water levels included 1.43 ft MHHW datum at the Mayport tide gage on 11/09 at 3:06 pm and 1.77 ft MHHW at the Main Street Bridge tide gage on the St. Johns River in downtown Jacksonville on 11/12 at 9 am.

Wider weather episode

Tropical Storm Eta offshore of the SW FL Gulf Coast tracked NE through the day, crossing NE FL while gradually weakening through the day. Strong, gusty winds and locally heavy rainfall impacted NE FL as bands of heavy showers moved onshore. The storm moved offshore of the NE FL coast in the afternoon, with improving local conditions over night. Elevated tides combined with persistent, strong onshore flow caused isolated minor flooding within the St. Johns River basin during times of high tide. Water levels were generally near or just below 1.5 feet MHHW datum at high tides.

Source: NOAA Storm Events Database, event_id 925405. Narrative written by the NWS forecast office that issued the report.