Dense Fog, Lafayette
- When
- December 2, 1:00 AM CST to 6:00 AM 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 in Wisconsin, December 2, 2001
Light winds, abundant low-level moisture, and clear skies led to the formation of dense fog which reduced visibilities to 1/8 to 1/4 mile. Several vehicle accidents were noted in local newspapers.
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.
Light winds, abundant low-level moisture, and clear skies led to the formation of dense fog which reduced visibilities to 1/8 to 1/4 mile. Several vehicle accidents were noted in local newspapers.
What forecasters said that day
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 Dec 1, 8:43 PM CST, 4 hours 17 minutes earlier.
Area forecast discussion, Dec 1, 8:43 PM CST, 4 hours 17 minutes before
AREA FORECAST DISCUSSION...UPDATED NATIONAL WEATHER SERVICE MILWAUKEE/SULLIVAN WI 843 PM CST SAT DEC 1 2001 FCST UPDATED FOR ST DECK XPNDG AS IT MOVES N INTO CWA ATTM. 18Z MESOETA IS NOW INDICATING MORE LO LVL RH THAN WAS 12Z RUN BUT STILL IS NOT CATCHING THIS FEATURE VERY WELL. AREAS OF LGT FOG ALSO BEGINNING TO DVLP WITH THE WAA AND LGTR SFC WNDS. .MKX...NONE. 0...0...0...0...0...0
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, Green
- When
- December 2, 1:00 AM CST to 6:00 AM 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
- December 2, 1:00 AM CST to 6:00 AM 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)
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
- Winter Storm in Utah, December 2 to 7, 2001
- Dense Fog in Wisconsin, December 2, 2001
- High Wind in Hawaii, December 2 to 3, 2001
- Heavy Snow in Idaho, December 2 to 3, 2001
- Dense Fog in Wisconsin, December 2, 2001
- Heavy Snow in Nevada, December 2 to 3, 2001
- Dense Fog in Wisconsin, December 2, 2001
- Heavy Snow in California, December 2 to 3, 2001
- High Wind in California, December 2, 2001
- High Wind in Hawaii, December 2, 2001
- High Wind in Montana, December 2, 2001
- High Wind in Alaska, December 2, 2001
More
Every storm in Wisconsin in 2001Every state in 2001This day in weather historyWarnings in Wisconsin, December 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 2026-09-24. Each event’s entry at NCEI: 5275551, 5275552, 5275553.