Florida, 2023Coastal Flood and Astronomical Low Tide in Florida, September 27 to 30, 2023
September 27 to 30, 2023 · NWS JAX · 4 events in 4 counties and zones
Coastal hazard potential increased through the week as high astronomical spring tides coincided with a persistent onshore flow pattern. Coastal hazards include increasingly strong and frequent rip currents, beach erosion and minor to moderate tidal flooding along the coast, within the Intracoastal Waterway and St.
Every event with a place to put it; 4 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.
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- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 4
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
Coastal hazard potential increased through the week as high astronomical spring tides coincided with a persistent onshore flow pattern. Coastal hazards include increasingly strong and frequent rip currents, beach erosion and minor to moderate tidal flooding along the coast, within the Intracoastal Waterway and St. Johns River basin.
Coastal Flood, Coastal Duval
- When
- September 27, 8:18 PM EST to September 30, 10:42 AM EST
- Where
- Coastal Duval forecast zone
- Reported by
- Other Federal Agency
- Coordinates
- 30.335, -81.648 (the zone’s center; the record gives no point)
The NOS tide site MYPF1 at Mayport recorded a peak tide value of 1.93 ft MHHW datum on 9/27 at 9:18 pm. Minor tidal flooding begins at 1.8 ft MHHW. At 8:54 pm on 9/28, the gage measured a peak water level of 1.99 ft MHHW. Moderate tidal flooding begins at 2.3 ft MHHW. At 10:00 am on 9/30, the tide gage reached 2.09 ft MHHW. At 10:15 am on 9/30, a NWS employee reported tidal flood water surrounded buildings and covered parking lots near Hecksher Drive and Browns Creek. At 10:54 am, the tide gage in the Dames Point Bridge on the St. Johns River reached 2.04 ft MHHW. Minor tidal flooding begins at this location at 1.6 ft MHHW. At 11:42 am on 9/30, the tide gage at the Main Street Bridge reached 1.61 ft MHHW. Minor tidal flooding begins at 1.5 ft MHHW at this location.
Coastal Flood, Coastal Nassau
- When
- September 27, 8:36 PM EST to September 30, 9:30 AM EST
- Where
- Coastal Nassau forecast zone
- Reported by
- Other Federal Agency
- Coordinates
- 30.611, -81.771 (the zone’s center; the record gives no point)
The NOS tide gage FRDF1 at Fernandina Beach recorded a peak tide value of 2.43 ft MHHW on 9/27 at 9:36 pm. Minor tidal flooding begins at 2 ft MHHW at this location. On 9/28 at 9:18 pm, the gage measured 2.38 ft MHHW. Moderate tidal flooding begins at 2.5 ft MHHW at this location. On 9/30 at 10:30 am, the tide gage measured 2.41 ft MHHW.
Coastal Flood, Coastal Flagler
- When
- September 29, 4:02 PM EST to September 30, 9:30 PM EST
- Where
- Coastal Flagler forecast zone
- Reported by
- Emergency Manager
- Coordinates
- 29.471, -81.293 (the zone’s center; the record gives no point)
At 5:02 pm on 9/29, the emergency manager reported minor coastal flooding across portions of South Flagler Avenue near South 23rd Street in Flagler County. Afternoon tides were peaking in the Matanzas River at the time of the report. On 9/30 at 4:30 pm, the emergency manager reported minor tidal flooding across South Flagler Avenue near 23rd street with 6-10 inches of standing water near high tide. On 9/30 at 10:30 pm, the EM reported street flooding near the Matanzas Woods Parkway around the time of high tide.
Astronomical Low Tide, Eastern Clay
- When
- September 30, 11:48 AM EDT
- Where
- Eastern Clay forecast zone
- Reported by
- Other Federal Agency
- Coordinates
- 29.983, -81.858 (the zone’s center; the record gives no point)
The tide gage at the Buckman Bridge reached 1.75 MHH datum. Minor tidal flooding begins at 1.5 ft MHHW for this location.
- Coastal Flood
- Flooding of coastal land by the sea, from storm surge, onshore wind or high tides.
After NWS Directive 10-1605, the rules offices file Storm Data by.
- Heat in Arizona, September 27, 20232 deaths · 1 event
- Flash Flooding and Flood in Kentucky, September 27 to 28, 20231 injured · $36,000 · 1.25 in hail · 11 events
- Hail and Damaging Winds in Kentucky, September 27, 20231.75 in hail · 6 events
- Coastal Flood in Florida, September 27 to 30, 20235 events
- Hail in Indiana, September 27, 20231 in hail · 5 events
- Damaging Winds in Oklahoma, September 27, 2023$2,000 · 56 kt wind · 2 events
- Coastal Flood in Virginia, September 27 to 28, 20232 events
- Coastal Flood in Georgia, September 27 to 30, 20232 events
- High Wind in Washington, September 27, 202359 kt wind · 1 event
- High Wind in Oregon, September 27, 202358 kt wind · 1 event
- Funnel Cloud in Florida, September 27, 20231 event
- Coastal Flood in Maryland, September 27 to 29, 20231 event
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1131048, 1131050, 1131071, 1131056.