Dense Fog, Alexander
- When
- January 27, 5:00 PM CST to 11:30 PM CST
- Where
- Alexander forecast zone
- Reported by
- AWOS
- Coordinates
- 37.192, -89.338 (the zone’s center; the record gives no point)
Dense Fog in Illinois, January 27, 2018
Widespread dense fog over far southern Illinois formed during the early evening hours and persisted through late evening. Visibility was reduced to one-quarter mile or less at times.
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 PAH wrote it up.
Widespread dense fog over far southern Illinois formed during the early evening hours and persisted through late evening. Visibility was reduced to one-quarter mile or less at times. The dense fog formed under a weak surface high pressure ridge that extended from the central Plains east across the lower Ohio Valley.
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, Pulaski
- When
- January 27, 5:00 PM CST to 11:30 PM CST
- Where
- Pulaski forecast zone
- Reported by
- AWOS
- Coordinates
- 37.223, -89.127 (the zone’s center; the record gives no point)
Dense Fog, Massac
- When
- January 27, 5:00 PM CST to 11:30 PM CST
- Where
- Massac forecast zone
- Reported by
- AWOS
- Coordinates
- 37.219, -88.708 (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
- Flash Flood and Heavy Rain in Texas, January 27 to 30, 2018
- Heavy Snow and High Wind in Washington, January 27, 2018
- Flash Flooding and Astronomical Low Tide in Louisiana, January 27 to 30, 2018
- Dense Fog in Missouri, January 27 to 28, 2018
- Winter Weather in New York, January 27 to 28, 2018
- Dense Fog in Kentucky, January 27 to 28, 2018
- High Wind in California, January 27 to 29, 2018
- Flash Flooding in Louisiana, January 27, 2018
- Freezing Fog and Dense Fog in California, January 27, 2018
- High Wind in Washington, January 27, 2018
- Winter Weather in New York, January 27, 2018
- Wildfire in Georgia, January 27, 2018
More
Every storm in Illinois in 2018Every state in 2018This day in weather historyWarnings in Illinois, January 2018
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: 732823, 732824, 732825.