Light Smoke Reaches Western Washington Simply Won't Last

The sunrise this morning time had a reddish twinge to it as well as the Seattle Space Needle cam clearly showed a haze layer on the eastern horizon (see below)

Influenza A virus subtype H5N1 sparse veil of fume has extended over western Washington, alongside far higher values eastward of the Cascade crest.   The splendid http://wasmoke.blogspot.com/ spider web site shows the air character province of affairs at vii AM (see below), indicating moderate air character inwards most of eastern Washington, extending into Puget Sound as well as Northwest Washington.    Fine on the coast.

As shown past times the modest particle concentrations at the Seattle Duwamish site (see below), values convey increased to around xxx micrograms per cubic meter--enough to attain a lite haze that obscures the Cascades as well as Mount Rainier.

But some perspective is needed....this is spare modify compared to what nosotros experienced a few weeks agone (see plot since August 19th below).    Based on forecast models as well as the latest air current observations, I don't await the values to teach much higher inwards Seattle.

Why did nosotros teach some smoke?    Because the winds turned easterly (from the east) aloft as well as some of the fume from the fires over NE Washington headed our way.  This is evident from the time-height cross department at Sea-Tac, which shows winds as well as temperatures alongside peak over fourth dimension (time increases to the left). The y-axis is peak inwards pressure--850 is virtually 5000 ft, as well as the air current barbs are inwards blue.

The latest visible satellite ikon shows some lite fume over western WA (you tin come across some from the Maple Fire on the Olympic Peninsula), simply huge plumes of fume are heading northeastward over Oregon, heading towards southeast WA.

And the 10:45 AM ikon from GOES-16 shows fume coming from the Maple Fire on the Olympic Peninsula as well as a novel burn downwardly N of Mt. Rainier.  You tin come across the low-level haze around Puget Sound if yous expression closely.

Let's banking concern jibe out the NOAA HRRRsmoke model to come across what is happening as well as volition happen.  Below I volition exhibit integrated smoke...the full fume inwards the vertical column....not fume at the surface.

At vi AM today , depression levels of fume are constitute over Puget Sound (blue), alongside serious fume close the NE WA fires as well as inwards a dense feather originating out of the fires of SW Oregon as well as northern CA.

Similar province of affairs at ii PM today.

But this evening (11 PM) the onshore period of time over the share volition increment every bit an upper-level disturbance approaches as well as the fume volition live on pushed out of western Oregon as well as Washington.

 And past times tomorrow at 10 AM, most of WA field volition live on able to breathe freely, except for folks straightaway downstream of the NE WA fires as well as the far SE corner of the state.

Clean air is await for the weekend.