Dense Smoke in Colorado
Every dense smoke event the National Weather Service has filed in Colorado, year by year, with the most significant episodes. Smoke reducing visibility to a quarter mile or less.
The most significant on the map
The most significant dense smoke episodes in Colorado.
- Tornadoes
- Tropical storms and surge
- Floods
- Wind
- Hail
- Winter weather
- Heat and drought
- Cold
- Fire, smoke and dust
- Marine and coastal
- Other
The record
- Events
- 8
- Deaths
- 0
- Injuries
- 0
- Damage
- None recorded
Every year
The most significant
Ranked by deaths, injuries, damage and size together.
- Drought and Dense Smoke in Colorado, April 1 to 30, 2015A series of storms crossed over the region during the latter half of April and cut into the precipitation deficit over portions of western Colorado by the end of the month.
- Dense Smoke and Dense Fog in Colorado, December 25 to 26, 2010Dense fog reformed under a strong surface-based inversion in the valleys of northwest Colorado.
- Dense Smoke in Colorado, June 29 to 30, 2018Dense smoke settled into the southwest San Juan Mountains and the Animas River Basin during the overnight and early morning hours from a combination of the 416 and Burro wildfires in the San Juan Mountains.
- Dense Smoke in Colorado, June 6 to 13, 2018Dense smoke repeatedly settled into the southwest San Juan Mountains and the Animas River Basin during the overnight and early morning hours from a combination of the 416 and Burro wildfires in the San Juan Mountains.
- Dense Smoke in Colorado, July 1 to 5, 2018Dense smoke repeatedly settled into the southwest San Juan Mountains and the Animas River Basin during the overnight and early morning hours from a combination of smoke from the 416 and Burro wildfires in the San Juan Mountains.
More
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.