Dense Fog, Marquette
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Marquette forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.820, -89.399 (the zone’s center; the record gives no point)
Dense Fog in Wisconsin, February 25, 2000
Dense fog developed and persisted across southern Wisconsin for about 21 hours as a warm front stalled over northern Illinois. Snowmelt and ice melt along with southeast winds pulling mild air into the region set the stage for poor visibilities which were frequently below 1/4 mile to near zero.
Where it happened
Every event with a place to put it; 20 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
- 20
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.
Dense fog developed and persisted across southern Wisconsin for about 21 hours as a warm front stalled over northern Illinois. Snowmelt and ice melt along with southeast winds pulling mild air into the region set the stage for poor visibilities which were frequently below 1/4 mile to near zero. Roughly 60 percent of the incoming and outgoing flights at Milwaukee's Mitchell Field were canceled, but the figure was only about 20 percent at Madison's airport. Needless to say, there were numerous vehicle accidents. Two teenagers were killed when their car struck the backend of a school bus in western Fond du Lac County. Four people were injured in an accident in Somers (Kenosha Co.).
The radar
The national radar mosaic for the moment the first event began.
Event by event
20 dense fog. Local standard time, as filed.
Dense Fog, Green Lake
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Green Lake forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.800, -89.045 (the zone’s center; the record gives no point)
Dense Fog, Fond du Lac
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Fond du Lac forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.754, -88.488 (the zone’s center; the record gives no point)
Dense Fog, Sheboygan
- When
- February 25, 12:00 AM CST to 12:00 PM 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, Sauk
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Sauk forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.427, -89.948 (the zone’s center; the record gives no point)
Dense Fog, Columbia
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Columbia forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.467, -89.334 (the zone’s center; the record gives no point)
Dense Fog, Dodge
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Dodge forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.416, -88.707 (the zone’s center; the record gives no point)
Dense Fog, Washington
- When
- February 25, 12:00 AM CST to 12:00 PM 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
- February 25, 12:00 AM CST to 12:00 PM 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)
Dense Fog, Iowa
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Iowa forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.001, -90.135 (the zone’s center; the record gives no point)
Dense Fog, Dane
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Dane forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.067, -89.418 (the zone’s center; the record gives no point)
Dense Fog, Jefferson
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Jefferson forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.021, -88.776 (the zone’s center; the record gives no point)
Dense Fog, Waukesha
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Waukesha forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.018, -88.304 (the zone’s center; the record gives no point)
Dense Fog, Milwaukee
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Milwaukee forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 43.022, -87.929 (the zone’s center; the record gives no point)
Dense Fog, Lafayette
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Lafayette forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 42.661, -90.132 (the zone’s center; the record gives no point)
Dense Fog, Green
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Green forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 42.680, -89.602 (the zone’s center; the record gives no point)
Dense Fog, Rock
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Rock forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 42.671, -89.072 (the zone’s center; the record gives no point)
Dense Fog, Walworth
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Walworth forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 42.669, -88.542 (the zone’s center; the record gives no point)
Dense Fog, Racine
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Racine forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 42.730, -87.812 (the zone’s center; the record gives no point)
Dense Fog, Kenosha
- When
- February 25, 12:00 AM CST to 12:00 PM CST
- Where
- Kenosha forecast zone
- Reported by
- AWOS,ASOS,MESONET,ETC
- Coordinates
- 42.573, -87.840 (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
- Hail and Damaging Winds in Texas, February 25 to 26, 2000
- Winter Storm in Wyoming, February 25 to 26, 2000
- Tornado in Missouri, February 25, 2000
- Tornado and Damaging Wind in Oklahoma, February 25, 2000
- Hail and Damaging Winds in Iowa, February 25, 2000
- High Wind in Wyoming, February 25 to 27, 2000
- Tornado in Missouri, February 25, 2000
- Winter Storm in Nebraska, February 25 to 26, 2000
- Excessive Heat in West Virginia, February 25, 2000
- Winter Storm in North Dakota, February 25, 2000
- Tornado in Missouri, February 25, 2000
- Damaging Wind in Kansas, February 25, 2000
More
Every storm in Wisconsin in 2000Every state in 2000This day in weather historyWarnings in Wisconsin, February 2000
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 2026-09-30. Each event’s entry at NCEI: 5135032, 5135033, 5135034, 5135153, 5135154, 5135155, 5135156, 5135157, 5135158, 5135159, 5135160, 5135161, 5135162, 5135163, 5135164, 5135165, 5135166, 5135167, 5135168, 5135169.