Delaware, 2024

Coastal Flood in Delaware, September 23, 2024

September 23, 2024 · NWS PHI · 2 events in 2 counties and zones

A prolonged period of onshore flow due to an offshore coastal storm + a full moon resulted in higher tides and moderate coastal flooding in some communities of southern Delaware.

Where it happened

Every event with a place to put it; 2 filed by county or forecast zone are drawn at its center, in a lighter ring. Tap one for its entry below.

  • Tornadoes
  • Tropical storms and surge
  • Floods
  • Wind
  • Hail
  • Winter weather
  • Heat and drought
  • Cold
  • Fire, smoke and dust
  • Marine and coastal
  • Other

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The toll

Deaths
0
Injuries
0
Property damage
None recorded
Crop damage
None recorded
Events
2

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.

What happened

The episode as NWS PHI wrote it up.

A prolonged period of onshore flow due to an offshore coastal storm + a full moon resulted in higher tides and moderate coastal flooding in some communities of southern Delaware.

The radar

The national radar mosaic for the moment the first event began.

Open the radar archive at this moment

Event by event

2 coastal flood. Local standard time, as filed.

Coastal Flood, Delaware Beaches

When
September 23, 12:00 PM EST to 8:00 PM EST
Where
Delaware Beaches forecast zone
Reported by
Broadcast Media
Coordinates
38.683, -75.339 (the zone’s center; the record gives no point)

Some roadway flooding was reported in the tidal areas of the county, and there were some road closures. Some homes and other buildings were surrounded by flood waters with some minor property damage occurring. The tide gauge at Indian River Inlet reached 5.22 feet MLLW and the tide gauge at Dewey Beach reached 4.45 feet MLLW.

Coastal Flood, Inland Sussex

When
September 23, 12:00 PM EST to 8:00 PM EST
Where
Inland Sussex forecast zone
Reported by
Broadcast Media
Coordinates
38.683, -75.339 (the zone’s center; the record gives no point)

Some roadway flooding was reported in the tidal areas of the county, and there were some road closures. Some homes and other buildings were surrounded by flood waters with some minor property damage occurring. The tide gauge at Indian River Inlet reached 5.22 feet MLLW and the tide gauge at Dewey Beach reached 4.45 feet MLLW.

What these are

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.

The same day elsewhere

More

Every storm in Delaware in 2024Every state in 2024This day in weather historyWarnings in Delaware, September 2024

Sources

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: 1208470, 1208471.