Dense Fog, Alexander
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Alexander forecast zone
- Coordinates
- 37.192, -89.338 (the zone’s center; the record gives no point)
Dense Fog in Illinois, January 6, 1998
Dense fog reduced visibility to a quarter mile or less across much of the area.
Where it happened
Every event with a place to put it; 19 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
- 19
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 PAH wrote it up.
Dense fog reduced visibility to a quarter mile or less across much of the area.
The radar
The national radar mosaic for the moment the first event began.
Event by event
19 dense fog. Local standard time, as filed.
Dense Fog, Edwards
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Edwards forecast zone
- Coordinates
- 38.417, -88.053 (the zone’s center; the record gives no point)
Dense Fog, Franklin
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Franklin forecast zone
- Coordinates
- 37.992, -88.924 (the zone’s center; the record gives no point)
Dense Fog, Gallatin
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Gallatin forecast zone
- Coordinates
- 37.763, -88.230 (the zone’s center; the record gives no point)
Dense Fog, Hamilton
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Hamilton forecast zone
- Coordinates
- 38.082, -88.539 (the zone’s center; the record gives no point)
Dense Fog, Hardin
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Hardin forecast zone
- Coordinates
- 37.518, -88.267 (the zone’s center; the record gives no point)
Dense Fog, Jackson
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Jackson forecast zone
- Coordinates
- 37.785, -89.382 (the zone’s center; the record gives no point)
Dense Fog, Jefferson
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Jefferson forecast zone
- Coordinates
- 38.301, -88.924 (the zone’s center; the record gives no point)
Dense Fog, Johnson
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Johnson forecast zone
- Coordinates
- 37.460, -88.881 (the zone’s center; the record gives no point)
Dense Fog, Massac
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Massac forecast zone
- Coordinates
- 37.219, -88.708 (the zone’s center; the record gives no point)
Dense Fog, Perry
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Perry forecast zone
- Coordinates
- 38.084, -89.367 (the zone’s center; the record gives no point)
Dense Fog, Pope
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Pope forecast zone
- Coordinates
- 37.413, -88.562 (the zone’s center; the record gives no point)
Dense Fog, Pulaski
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Pulaski forecast zone
- Coordinates
- 37.223, -89.127 (the zone’s center; the record gives no point)
Dense Fog, Saline
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Saline forecast zone
- Coordinates
- 37.753, -88.541 (the zone’s center; the record gives no point)
Dense Fog, Union
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Union forecast zone
- Coordinates
- 37.471, -89.255 (the zone’s center; the record gives no point)
Dense Fog, Wabash
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Wabash forecast zone
- Coordinates
- 38.446, -87.844 (the zone’s center; the record gives no point)
Dense Fog, Wayne
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Wayne forecast zone
- Coordinates
- 38.430, -88.426 (the zone’s center; the record gives no point)
Dense Fog, White
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- White forecast zone
- Coordinates
- 38.088, -88.180 (the zone’s center; the record gives no point)
Dense Fog, Williamson
- When
- January 6, 1:00 AM CST to 10:00 AM CST
- Where
- Williamson forecast zone
- Coordinates
- 37.730, -88.930 (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
- Ice Storm in New York, January 6 to 9, 1998
- Ice Storm in Vermont, January 6 to 9, 1998
- Hail in Texas, January 6, 1998
- Hail in Texas, January 6, 1998
- Ice Storm in Vermont, January 6 to 9, 1998
- Flash Flooding in Texas, January 6, 1998
- Flooding in New York, January 6 to 12, 1998
- Flash Flooding and Flooding in Louisiana, January 6 to 7, 1998
- Hail in Texas, January 6, 1998
- Flash Flooding and Hail in Texas, January 6 to 7, 1998
- Winter Weather in New York, January 6 to 9, 1998
- Flash Flooding and Flood in Mississippi, January 6 to 7, 1998
More
Every storm in Illinois in 1998Every state in 1998This day in weather historyWarnings in Illinois, January 1998
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: 5628907, 5628908, 5628909, 5628910, 5628911, 5628912, 5628913, 5628914, 5628915, 5628916, 5628917, 5628918, 5628919, 5628920, 5628921, 5628922, 5628923, 5628924, 5628925.