With enough moisture present in the wake of a departing low pressure system, and clear skies allowing for overnight lows to cool close to the dew point, areas of dense fog developed across the Grand Valley. In spots, particularly in the Redlands area of southern Grand Junction, dense fog developed that had visibility of less than 150 yards.
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The episode as NWS GJT wrote it up.
With enough moisture present in the wake of a departing low pressure system, and clear skies allowing for overnight lows to cool close to the dew point, areas of dense fog developed across the Grand Valley. In spots, particularly in the Redlands area of southern Grand Junction, dense fog developed that had visibility of less than 150 yards.
The national radar mosaic for the moment the first event began.
1 dense fog. Local standard time, as filed.
This localized Dense Fog Event was reported to NWS Grand Junction by a former employee of this office. Also included were photographs indicating that yes, visibility was less than 1/4 mile in this area.
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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: 1265809.