21 March 2017 – PNW Migration Update

Rain, heavy at times and easing up through the night.  Sigh.

There was a nice south wind, so anxious birds braved the weather and picked their way north.  Not in great numbers but fairly widespread as the weather would allow.  It’s tough to pick them out between the rain cells so we have the Hydrometeor loop today to aide in finding the birds; a little like finding Waldo.

American White Pelicans have been reported in the region, a few more Western Kingbirds and Osprey as well.  Ruby-crowned Kinglets are starting to sing.  It’s a wonderful song and we only get a small window in early spring to hear it before they clear the area as they head north to the breeding grounds.

Pacific Slope Flycatcher reported in the Central Valley is a first arrival.

17 March 2017 – PNW Migration Update

First clear night in a LONG time and winds out of the south = a pretty decent and widespread movement of north bound migrants.  Decent enough that i even put in the loop from Gray’s Harbor (LGX)

Looking at the wind map we can see why there was very little movement up the Atlantic Flyway and some decent flights up the Central Flyway.

A few shorebirds are popping up, swallows are becoming more widely reported including early vanguard Cliff and Northern Rough-wing, and the Snow Goose numbers are way down on Sauvie Island.

13 March 2017 – PNW Migration Update

As suspected (but not verified because of the terrible weather recently) migration is in full tilt.  Mostly, waterfowl are on the move it seems.  I’m not seeing any reports of widespread passerine movement.  There has been reports of Violet-green Swallows and a few reports of vanguard Osprey.  Last night’s movement was aided by a SE wind.

20 October 2016 – PNW Migration Update

It might be the winds out of the south or it might be that we’re getting a little long in the tooth, but the migration last night was pretty weak.  Best action was up against the spine of the Cascades.

26 October 2016 – PNW Migration Update

Strong winds out of the south and widespread rain developing over night; pretty crappy conditions for migrants.  But at low levels, especially early in the evening, some birds were on the move.  Taking a look at both the Base Reflectivity and the Hydrometeor Classification loops we can see, even in adverse conditions, some birds continue to pound south.  Probably the strong flying waterfowl.

25 October 2016 – PNW Migration Update

As expected from what we saw yesterday the south winds continued through the night with scattered rain cells.  And, very low levels of migrants passing through.

So lets take a look at the National Composite because there has to be some action going on somewhere.  Looking at the wind map we can see the Central Flyway pretty much shut down and the best conditions are in the Mississippi and southern Atlantic Flyways.

And the radar shows:

24 October 2016 – PNW Migration Update

I suppose the weekend was the time to be looking at the radar, but i take the weekends off and spend them in the field instead.  I did find my first Buffleheads of the season – a really good sign the migration is winding down. No males yet, but still …

Last night, in the face of southerly winds, we had very low levels of migrants in the airspace.

It looks like we are in for another system – it’s just offshore now.