Wisconsin, 2000

Dense Fog in Wisconsin, August 23, 2000

August 23, 2000 · NWS MKX · 6 events in 6 counties and zones

The combination of weak high pressure, light winds, mostly clear skies, and leftover low level moisture allowed for the formation fo dense fog across south-central and southeast Wisconsin. As usual, it had rained across most of the area the day before.

Where it happened

Every event with a place to put it; 6 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
6

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.

The combination of weak high pressure, light winds, mostly clear skies, and leftover low level moisture allowed for the formation fo dense fog across south-central and southeast Wisconsin. As usual, it had rained across most of the area the day before. Visibilities lowered to 1/4 mile or less in most areas. Numerous vehicle accidents were noted in area newspaper. Several flights were delayed at both Madison's Truax Field and Milwaukee's Mitchell Field.

The radar

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

Open the radar archive at this moment

Event by event

6 dense fog. Local standard time, as filed.

Dense Fog, Fond du Lac

When
August 23, 3:00 AM CST to 7:00 AM 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
August 23, 3:00 AM CST to 7:00 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, Ozaukee

When
August 23, 3:00 AM CST to 7:00 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)

Dense Fog, Milwaukee

When
August 23, 3:00 AM CST to 7:00 AM 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, Racine

When
August 23, 3:00 AM CST to 7:00 AM 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
August 23, 3:00 AM CST to 7:00 AM 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

More

Every storm in Wisconsin in 2000Every state in 2000This day in weather historyWarnings in Wisconsin, August 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 2026-09-24. Each event’s entry at NCEI: 5173148, 5173149, 5173150, 5173151, 5173152, 5173153.