Monday, September 14, 2015

Wildfire smoke forecast through Wednesday 16 September

Air quality in eastern Washington hovered between Good to Moderate over the weekend, with worse air close to the fires. Warm weather did increase smoke production at several fires, and while fire lines have held steady, some new but small fires have sprung up.

While large scale smoke build-ups are not expected over the first half of this week, the onset of significant rain and wind has been delayed to Wednesday evening. Some light east winds are expected on Tuesday night and this is expected to drive some smoke toward the eastern foothills of the Cascades. Some models even hint at small amounts of smoke in western WA.

Between now and Wednesday afternoon, Ellensburg, Yakima and Goldendale could see Moderate to USG air at times while remaining areas are likely to vary between Good and Moderate. Winds are likely to pick up after that but valley communities will probably be slower to scour out. Good air is expected statewide by Thursday.

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