More hot weather and smoke in the forecast for Nevada County |

More hot weather and smoke in the forecast for Nevada County

Smoke from the Mariposa fire over the lake at 6 Wednesday morning.
Photo submitted by Bruce Puphal |

Smoky skies in Western Nevada County this week are coming from the Detwiler Fire in Mariposa County, which Cal Fire reported is burning over 70,000 acres as of Thursday morning and is 10 percent contained.

The Northern Sierra Air Quality Management District issued an air quality advisory Wednesday, which is expected to last at least through Monday.

The district advises limiting outdoor exposure when smoke is present in the air. Closing doors and windows and using an air conditioner on the “recirculate” setting is recommended. People with heart disease, respiratory or chronic health issues should be especially diligent about staying indoors, and people with asthma should follow their asthma management plan.

“Smoke conditions can change quickly and vary greatly due to terrain, wind direction and weather,” the district said in a release. “Eastern parts of the Sierra and Plumas Counties are likely to see the most smoke.”

High ozone concentrations are also affecting air quality this week, the district said.

For up-to-date information about air quality visit

Temperatures in Grass Valley are expected to heat up through the weekend, according to the National Weather Service.

A high of 90 degrees is forecasted for Friday and 94 for Saturday and Sunday. A subtle cooling trend is predicted for early next week with highs in the upper 80s to low 90s.

Light and variable winds at about 5 mph are expected throughout the weekend.

To contact Staff Writer Matthew Pera, email or call 530-477-4231.

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