Utah, 2026

Dense Fog in Utah, January 24, 2026

January 24, 2026 · NWS GJT · 1 event in 1 county or zone

Strong moisture transport flowed through the Intermountain West around a deep upper-level trough in late January, bringing widespread precipitation to eastern Utah. While much of the region continued to be impacted by active weather through the night and morning, drying mid-levels cleared skies over portions of the Utah Grand Flat and Four Corners.

Where it happened

Every event with a place to put it; 1 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
1

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 GJT wrote it up.

Strong moisture transport flowed through the Intermountain West around a deep upper-level trough in late January, bringing widespread precipitation to eastern Utah. While much of the region continued to be impacted by active weather through the night and morning, drying mid-levels cleared skies over portions of the Utah Grand Flat and Four Corners. Mist and fog lowered visibility for much of the night as a result, with dense fog briefly developing coinciding with the clearest skies and strongest radiational cooling.

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 Grand Junction, CO wrote its last area forecast discussion before the first event at Jan 23, 4:43 PM MST, 8 hours 17 minutes earlier.

Area forecast discussion, Jan 23, 4:43 PM MST, 8 hours 17 minutes before
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Hazardous weather outlook, Jan 23, 2:15 AM MST, 22 hours 45 minutes before
Hazardous Weather Outlook
National Weather Service Grand Junction CO
215 AM MST Fri Jan 23 2026

COZ001>014-017>023-UTZ022>025-027>029-241200-
Lower Yampa River Basin-Central Yampa River Basin-
Roan and Tavaputs Plateaus-Elkhead and Park Mountains-
Upper Yampa River Basin-Grand Valley-Debeque to Silt Corridor-
Central Colorado River Basin-Grand and Battlement Mesas-
Gore and Elk Mountains/Central Mountain Valleys-
Central Gunnison and Uncompahgre River Basin-
West Elk and Sawatch Mountains-Flat Tops-Upper Gunnison River Valley-
Uncompahgre Plateau and Dallas Divide-Northwest San Juan Mountains-
Southwest San Juan Mountains-Paradox Valley/Lower Dolores River-
Four Corners/Upper Dolores River-Animas River Basin-
San Juan River Basin-Southeast Utah-Eastern Uinta Mountains-
Eastern Uinta Basin-Tavaputs Plateau-Arches/Grand Flat-
La Sal and Abajo Mountains-Canyonlands/Natural Bridges-
215 AM MST Fri Jan 23 2026

This Hazardous Weather Outlook is for northwest Colorado, southwest
Colorado, west central Colorado, east central Utah, northeast Utah
and southeast Utah.

.DAY ONE...Today and tonight.

Snow is expected later this afternoon and will continue overnight as
a cold front and associated upper level trough move through the area.
Winter Weather Advisories are in effect for 6 to 12 inches of snow
for the La Sals and Abajos in Utah and most of the Colorado
mountains.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Snow continues Saturday though coverage and rates will diminish. By
late Saturday night/early Sunday morning, snow will come to an end.
Dry conditions return for the next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected today or tonight, however
spotters are encouraged to report snowfall amounts to the
National Weather Service in Grand Junction.

The radar

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

Open the radar archive at this moment

Event by event

1 dense fog. Local standard time, as filed.

Dense Fog, Grand Flat and Arches

When
January 24, 1:00 AM MST to 2:00 AM MST
Where
Grand Flat and Arches forecast zone
Reported by
ASOS
Coordinates
38.982, -109.570 (the zone’s center; the record gives no point)

Localized dense fog developed within the Utah Grand Flat on the morning of January 24. The KCNY ASOS at the Canyonlands Regional Airport reported about one hour of 1/4-mile visibility from dense fog after midnight. No reports of injuries, damages, or fatalities were received.

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

More

Every storm in Utah in 2026Every state in 2026This day in weather historyWarnings in Utah, January 2026

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: 1310259.