Illinois, 2025

Freezing Fog in Illinois, January 9, 2025

January 9, 2025 · NWS PAH · 3 events in 3 counties and zones

Calming winds and clearing skies allowed for freezing fog development in far northern portions of Southern Illinois near the I-64 corridor. Visibility dropped to under a quarter mile at times during the pre-dawn and early morning hours at Fairfield Municipal Airport and Mount Carmel Municipal Airport as temperatures fell to the low single digits to near 0.

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

Open the live radar over this ground

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.

Calming winds and clearing skies allowed for freezing fog development in far northern portions of Southern Illinois near the I-64 corridor. Visibility dropped to under a quarter mile at times during the pre-dawn and early morning hours at Fairfield Municipal Airport and Mount Carmel Municipal Airport as temperatures fell to the low single digits to near 0. Coverage of freezing fog was more widespread further north/east outside the coverage area including at Flora and Vincennes.

The radar

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

Open the radar archive at this moment

Event by event

3 freezing fog. Local standard time, as filed.

Freezing Fog, Wayne

When
January 9, 3:30 AM CST to 8:30 AM CST
Where
Wayne forecast zone
Reported by
AWOS
Coordinates
38.430, -88.426 (the zone’s center; the record gives no point)

Freezing Fog, Edwards

When
January 9, 3:30 AM CST to 8:30 AM CST
Where
Edwards forecast zone
Reported by
AWOS
Coordinates
38.417, -88.053 (the zone’s center; the record gives no point)

Freezing Fog, Wabash

When
January 9, 3:30 AM CST to 8:30 AM CST
Where
Wabash forecast zone
Reported by
AWOS
Coordinates
38.446, -87.844 (the zone’s center; the record gives no point)

What these are

Freezing Fog
Fog that froze on contact with roads, vehicles or structures.

After NWS Directive 10-1605, the rules offices file Storm Data by.

The same day elsewhere

More

Every storm in Illinois in 2025Every state in 2025This day in weather historyWarnings in Illinois, January 2025

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: 1229213, 1229214, 1229215.