Colorado, 2013

Dense Fog in Colorado, November 29, 2013

November 29, 2013 · NWS GJT · 2 events in 2 counties and zones

Skies cleared allowing radiational cooling to cause dense fog across some areas of western Colorado.

Where it happened

Every event with a place to put it; 2 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
2

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.

Skies cleared allowing radiational cooling to cause dense fog across some areas of western Colorado.

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 Nov 28, 9:52 PM MST, 2 hours 8 minutes earlier.

Area forecast discussion, Nov 28, 9:52 PM MST, 2 hours 8 minutes before
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The radar

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

Open the radar archive at this moment

Event by event

2 dense fog. Local standard time, as filed.

Dense Fog, Central Gunnison and Uncompahgre River Basin

When
November 29, 12:00 AM MST to 10:00 AM MST
Where
Central Gunnison and Uncompahgre River Basin forecast zone
Reported by
ASOS
Coordinates
38.737, -107.907 (the zone’s center; the record gives no point)

Dense fog occurred across the town of Montrose, with visibilities down to a quarter mile or less.

Dense Fog, Paradox Valley / Lower Dolores River Basin

When
November 29, 12:00 AM MST to 10:15 AM MST
Where
Paradox Valley / Lower Dolores River Basin forecast zone
Reported by
ASOS
Coordinates
38.294, -108.414 (the zone’s center; the record gives no point)

Dense fog occurred across portions of western Montrose and San Miguel Counties, with reduced visibilities to a quarter mile or less along sections of Highways 90 and 141.

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 Colorado in 2013Every state in 2013This day in weather historyWarnings in Colorado, November 2013

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: 516999, 517000.