Salmon River Complex Air Quality Report for August 23 -24
Incident: Salmon River Complex Wildfire
Yesterday, August 22, 2013
Thunderstorms produced lightning activity, gusty winds and variable precip as the low pressure system moved northward into Oregon. Initial attack activity was moderate and successful but new growth on hot portions of existing large fires lofted smoke northward during the day . Smoke from the Salmon River Complex continues to settle in the drainage as interior burning continues to churn through remnant fuels. Sawyers Bar finally experienced good dispersion and air quality for a few hours in the afternoon, but smoke did settle back into the drainage overnight and through Friday morning. Active burning on the western flank of the Butler Fire continues to affect Orleans, but Somes Bar was able to clear out almost completely for a respite. Corral Complex was moderately active on all flanks interior to its indirect lines and grew about 450 acres, but smoke concentrations at Willow Creek have been able to maintain between good to moderate.
Friday, August 23, 2013
With the low and it associated instability moving northward through Oregon we will return to southwesterly flow. Drying temps will slowly offset any hard-won gains from the scattered precip. Increased humidities augmented by the marine influence will limit new smoke production as fire activity recovers from the local storms. However, Sawyers Bar, Orleans and Willow Creek will all experience deterioriating air quality through the day as stability builds and fire activity responds to warming temps and lower humidities.
Saturday and Sunday, August 24th and 25th, 2013
A short wave disturbance passing through will bring strong gusty winds Saturday and Sunday. Holdovers from the 7000 lightning strikes received in the North Zone over the past 48 hours will likely come to life, and the degree to which initial attack is successful will be the predominant influence on local new smoke production. The winds are not likely to offer significant relief for air quality near the existing large fires due to the deeply incised topography, and likelihood of increased fire activity from Butler Fire and the Corral Complex will continue to significantly degrade air quality at Sawyers Bar, and to a lesser extent, that at Orleans and Somes Bar.