Dense Fog, Sheboygan
- When
- May 17, 12:00 AM CST to 6:30 AM CST
- Where
- Sheboygan forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.756, -87.800 (the zone’s center; the record gives no point)
Dense Fog in Wisconsin, May 17, 2001
Winds off of Lake Michigan pulled moist air inland that led to dense fog formation after several hours of nighttime radiational cooling. Visibilities were zero to 1/8 mile near the shoreline, and 1/8 to 1/4 mile inland.
Where it happened
Every event with a place to put it; 3 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
The toll
- Deaths
- 0
- Injuries
- 0
- Property damage
- None recorded
- Crop damage
- None recorded
- Events
- 3
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 MKX wrote it up.
Winds off of Lake Michigan pulled moist air inland that led to dense fog formation after several hours of nighttime radiational cooling. Visibilities were zero to 1/8 mile near the shoreline, and 1/8 to 1/4 mile inland. About a dozen vehicle accidents were noted. Local airplane traffic was also delayed until the fog burned off.
The radar
The national radar mosaic for the moment the first event began.
Event by event
3 dense fog. Local standard time, as filed.
Dense Fog, Washington
- When
- May 17, 12:00 AM CST to 6:30 AM CST
- Where
- Washington forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.369, -88.231 (the zone’s center; the record gives no point)
Dense Fog, Ozaukee
- When
- May 17, 12:00 AM CST to 6:30 AM CST
- Where
- Ozaukee forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.403, -87.891 (the zone’s center; the record gives no point)
What these are
- Dense Fog
- Fog reducing visibility to a quarter mile or less, filed where it caused accidents or disruption.
After NWS Directive 10-1605, the rules offices file Storm Data by.
The same day elsewhere
- Flash Flooding and Hail in Oklahoma, May 17 to 18, 2001
- Hail and Damaging Winds in Texas, May 17 to 18, 2001
- Hail and Damaging Winds in Colorado, May 17 to 20, 2001
- Flash Flooding in West Virginia, May 17, 2001
- Flash Flooding and Hail in Ohio, May 17 to 19, 2001
- Hail and Damaging Winds in West Virginia, May 17, 2001
- Damaging Winds in Texas, May 17 to 18, 2001
- Flash Flood in West Virginia, May 17, 2001
- Flash Flooding and Hail in Ohio, May 17, 2001
- Flash Flooding in Kentucky, May 17, 2001
- Flash Flood and Hail in West Virginia, May 17, 2001
- Flash Flood in Missouri, May 17, 2001
More
Every storm in Wisconsin in 2001Every state in 2001This day in weather historyWarnings in Wisconsin, May 2001
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 2026-10-01. Each event’s entry at NCEI: 5248216, 5248217, 5248218.