Air Character If Far Ameliorate Inward Western Wa Simply Smoke Volition Return
Take a deep breath. It's ok.
Air character has greatly improved at depression levels over western Washington equally cool, prepare clean marine air has pushed inward at depression levels. You tin encounter this alongside a plot of the concentration of small-scale particles inward the air (PM2.5), the sort that tin deed deep into your lungs (see below for Seattle-blue color, Bellingham-red color, too Tacoma-yellow)
Our air is yesteryear no hateful pristine, alongside to a greater extent than particles than normal, precisely Seattle too Tacoma are at levels almost 1/10th equally high equally Wednesday. Bellingham is better, precisely they are closer to the BC fires too getting hitting yesteryear some smoke this AM (but withal down).
The first-class NOAA/NWS HRRR smoke model is predicting improving air character at the surface during the adjacent 24-h, something made clear yesteryear comparison the forecasts betwixt five AM today (Friday) too tomorrow (see below, cerise is bad air, improving towards green, blue, too white). Worse precisely withal improving over the eastern slopes of the Cacades.
So Saturday's air character should last decent equally well.
But thence things change. Upper-level high pressure level builds inward along the BC coast, coupled alongside a low-level trough of depression pressure level moving northward into western WA. As a result, nosotros volition railroad train easterly too northeasterly period of time inward the lower atmosphere, bringing smoke dorsum into the region. This is good illustrated yesteryear the forecast winds too temperatures at 850 hPa (about 5000 ft) for Mon morning time at ii AM:
The NASA GEOS-5 model shows enough of smoke blowing southward over us on Mon at 10 AM (see map)
So relish the prepare clean air, things volition degrade yesteryear Monday.
Air character has greatly improved at depression levels over western Washington equally cool, prepare clean marine air has pushed inward at depression levels. You tin encounter this alongside a plot of the concentration of small-scale particles inward the air (PM2.5), the sort that tin deed deep into your lungs (see below for Seattle-blue color, Bellingham-red color, too Tacoma-yellow)
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| From the Puget Sound Clean Air Agency Website |
The first-class NOAA/NWS HRRR smoke model is predicting improving air character at the surface during the adjacent 24-h, something made clear yesteryear comparison the forecasts betwixt five AM today (Friday) too tomorrow (see below, cerise is bad air, improving towards green, blue, too white). Worse precisely withal improving over the eastern slopes of the Cacades.
But thence things change. Upper-level high pressure level builds inward along the BC coast, coupled alongside a low-level trough of depression pressure level moving northward into western WA. As a result, nosotros volition railroad train easterly too northeasterly period of time inward the lower atmosphere, bringing smoke dorsum into the region. This is good illustrated yesteryear the forecast winds too temperatures at 850 hPa (about 5000 ft) for Mon morning time at ii AM:
The NASA GEOS-5 model shows enough of smoke blowing southward over us on Mon at 10 AM (see map)
So relish the prepare clean air, things volition degrade yesteryear Monday.
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