Incident: Forks Complex (includes Butler Fire ) Wildfire
Yesterday, August 11, 2013
Smoke inversions broke early giving all areas at least a few hours of improved air quality. Most areas remained in the good to moderate range all day and into the evening. Increased fire activity caused afternoon smoke impacts in Sawyers Bar, Forks of Salmon, and Somes Bar. Air quality in Somes Bar improved by early evening, but remained in the unhealthy ranges through the night in Sawyers Bar and Forks of Salmon.
Monday, August 12, 2013
Starting around 0900 smoke will begin to drift into Somes Bar, and the Orleans area. Between 1200 and 1300 hours, the PM concentrations in these areas will increase to the moderate level. There will be some clearing in Orleans by 1600 hours; Somes Bar will remain in the moderate AQI. Hoopa will see light haze most of the day, reaching the moderate levels only for an hour or two. Sawyers Bar and Forks of Salmon will be in the unhealthy range for most of the day and night. There is some clearing around 1600 to 1500 hours, but this is short lived and returns to the unhealthy levels. With forecast southwest transport winds, Etna, Fort Jones, and Yreka will see smoke increase throughout the day and into the early morning hours; AQI levels will be moderate by 1400 hours.
Tuesday, August 13, 2013
Air quality from Somes Bar to Hoopa will become unhealthy for sensitive groups by 1200. Smoke in these areas will start to clear around 1600 hours, but will remain in the moderate range for Somes Bar and Orleans. Hoopa will remain in the moderate to good range. Air quality at Sawyers Bar and Forks of Salmon will once again be in unhealthy levels. Around 1600 hours, when smoke in the drainages will start to lift, the area will move into the unhealthy for sensitive levels, then return to unhealthy by 2100. Smoke levels will start to increase in Etna, Ft. Jones, and Yreka by late afternoon and early evening, reaching the moderate range by 1900 hours.
Over the next couple of days south to south-west transport winds will help to keep the air quality in the moderate range. Toward the end of the week winds will weaken along with a decrease in atmospheric dispersion. So, by the end of this week and early next week smoke impacts will increase.
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