Marine Dense Fog
Fog reducing visibility to a quarter mile or less over water. Every one the National Weather Service has filed, by year and by state, with the deadliest and costliest.
The deadliest and costliest on the map
The deadliest and costliest marine dense fog episodes on record.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 22
- Deaths
- 13
- Injuries
- 4
- Damage
- $65,000
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.
Every year
Deaths each year
The deadliest
Deaths from this kind of event within each episode.
- Marine Dense Fog in Eastern Pacific Coastal Waters, April 17, 2015A fishing party of four men departed early on April 17 on a fishing outing from Bodega Harbor. Their overturned boat and two bodies were discovered near Tomales Point the following day. The bodies of the other two individuals were found over the next few weeks.
- Marine Dense Fog in Gulf of Mexico, January 14, 2020Boaters were killed when a tanker crashed into their vessel. Dense fog may have been a contributing factor.
- Marine Dense Fog in Eastern Pacific Coastal Waters, June 29, 2020A boat sank after striking the south jetty of the Suislaw River on 06/29/2020. The Coast Guard received the distress call at 29/0150 PDT. Three people were on board, two died and one was rescued.
- Marine Dense Fog in Eastern Pacific Coastal Waters, September 26, 2021Just before 9:30 AM PDT, the USCG received a report of a capsized vessel just outside of the Umpqua River Bar. The boat was a 22 ft pleasure craft with 5 people on board. Three made it to shore with assistance.
- Marine Dense Fog in Eastern Pacific Coastal Waters, March 26, 2022A fishing vessel White Swan III based on South Beach, Oregon sank in the north end of Heceta Banks fishing area, about 35 miles west of Florence, Oregon. Coast Guard Sector North Bend dispatched a helicopter which found the vessel, but due to heavy fog had to return to base.
The costliest
Damage from this kind of event within each episode, in the dollars of its year.
By state
| State or waters | Events | Deaths | Injuries | Damage |
|---|---|---|---|---|
| Gulf of Mexico | 9 | 3 | 3 | $50,000 |
| Eastern Pacific Coastal Waters | 4 | 10 | 1 | $15,000 |
| North Atlantic Coastal Waters | 4 | 0 | 0 | |
| South Atlantic Coastal Waters | 3 | 0 | 0 | |
| Lake Erie | 2 | 0 | 0 |
Every kind of event
- Thunderstorm Wind
- Hail
- Flash Flood
- High Wind
- Winter Storm
- Drought
- Winter Weather
- Tornado
- Heavy Snow
- Flood
- Marine Thunderstorm Wind
- Heat
- Heavy Rain
- Strong Wind
- Excessive Heat
- Extreme Cold/Wind Chill
- Cold/Wind Chill
- Lightning
- Dense Fog
- Blizzard
- Frost/Freeze
- Ice Storm
- High Surf
- Funnel Cloud
- Wildfire
- Tropical Storm
- Waterspout
- Coastal Flood
- Lake-Effect Snow
- Debris Flow
- Hurricane (Typhoon)
- Dust Storm
- Rip Current
- Storm Surge/Tide
- Marine High Wind
- Sleet
- Avalanche
- Marine Hail
- Astronomical Low Tide
- Marine Tropical Storm
- Tropical Depression
- Freezing Fog
- Lakeshore Flood
- Dust Devil
- Marine Strong Wind
- Dense Smoke
- Marine Hurricane/Typhoon
- Volcanic Ashfall
- Seiche
- Sneakerwave
- Volcanic Ash
- Tsunami
- Marine Tropical Depression
- Marine Dense Fog
- Northern Lights
- Marine Lightning
- Hurricane
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.