Increasing low-level moisture and good radiational cooling conditions led to the formation of dense fog over portions of southern Wisconsin. The dense fog was most concentrated over Sheboygan County where visibilities fell to a 1/4 mile or less during the early morning hours of August 12th.
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The episode as NWS MKX wrote it up.
Increasing low-level moisture and good radiational cooling conditions led to the formation of dense fog over portions of southern Wisconsin. The dense fog was most concentrated over Sheboygan County where visibilities fell to a 1/4 mile or less during the early morning hours of August 12th.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Milwaukee, WI wrote its last area forecast discussion before the first event at Aug 11, 8:36 PM CST, 4 hours 24 minutes earlier.
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</html>The national radar mosaic for the moment the first event began.
1 dense fog. Local standard time, as filed.
Visibilities at the Sheboygan airport were 1/4 mile or less between 2 am and 5 am CDT as measured by the AWOS at the airport. Law enforcement officials also reported dense fog throughout the county.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in Wisconsin in 2010Every state in 2010This day in weather historyWarnings in Wisconsin, August 2010
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: 258559.