29 September 2015 – PNW Migration Update

Migrants are still on the move.  A fairly heavy movement was picked up on the ATX station (Seattle) radar.  It was a bit more moderate down here in the Metro Area (RTX), and concentrated in the east counties.

I sill haven’t resolved the disc space issue.  But, i am leaning toward starting a new blog with forward and backward references.  I would like the new blog to be as robust as this one (information pages and reference links) but that will take a lot of time to do.  So it will be an “off-season” project.  Which means the real purpose of this current blog – to leave an archive of the radar images – has reached its unfortunate and technical end.

So, this is the second to the last post for this blog.  The next one will be with a link to the new blog.  But i’m not sure when that will be.

In the mean time, all of the tools you need to track migration can be found in both the “Pages” section and in the links on the right hand side of the page.

22 September 2015 – PNW Migration Update

Welcome to Fall.

Birds were jamming last night!  Decent conditions, light northerly winds on a clear night across the Pacific Northwest.

The grand passage of the Greater White-fronted Geese yesterday – wow!  Probably a once in a lifetime experience. From the Portland Basin to the Southern Coast reports came in of GWFG in the thousands passing overhead.  A remarkable event.

Anyway i added the Seattle radar loop today because it was packed with birds and i don’t think i’ve posted one from there this season.  So here it is, your moment of zen:

Oh, look at the RTX loop and see if you can spot the Barn Swallows going to roost,  Starts around 00:00 UTC.

 

18 August 2015 – Migration update

A quick update here.  Pace remains moderate and mainly along the flanks of the Cascades.  I added Seattle (ATX) for base reference.

I wonder what effect the fires raging throughout the PNW will have on inland migration given the extensive range.

Update: Not to mention the fires in Alaska!

27 Mar 2015 — PNW Migration Update

Excellent night flight, and as i write this it is still at full tilt.

Only new migrant reported that i saw listed was Purple Martin on the southern Oregon coast.

But tonight is one of those teachable moments on the interaction of the weather and migration.  So we’ll look at the conditions at 850 mb heights — note the stream lines and the ridge in the west and the trough in the east.  Then check out the static image of the national radar composite.  (The full loop can be viewed over at Paul’s archive: here)

The Pacific Flyway from the Mexican border to the Canadian border is solid blue with birds.  Everywhere else?  Central and Mississippi Flyways — nada.  Atlantic Flyway? — just a tiny bit on the SE coast ahead of the advancing cold front.

Big picture gallery today.

17 Mar 2015 — PNW Migration Update

Many of our summer residents are nest building: Chickadees, Crows, House Finches, Lesser Goldfinches, Anna’s and Rufous Hummingbirds …..

More Ospreys are being reported but that is about it.  The movement is still wintering birds staging north.

And it was pretty heavy last night; up the I5 corridor and along the coast.  I have put all three PNW radar loops in today’s gallery. RTX – Portland, LGX – Gray’s Harbor, ATX – Seattle.

 

13 Mar 2015 — PNW Migration Update

Perhaps sensing the looming trough birds filled the airspace last night.

There isn’t any new migrant reports so this has to be staging waterfowl.  I am still puzzled about the density of birds headed up the spine of the Cascades.  Perhaps they use the Columbia Gorge to get to the east side?

Anyway, since it was a nice night to take wing and it looks like the next couple of days, maybe not so much, i put in all three PNW radar loops in today’s gallery.  RTX is Scappoose, LGX is Gray’s Harbor, and ATX is Seattle.

30 May 2014 PNW Migration Update

This is the last update for the season.  With a bit of luck i’ll be back in the fall.

And we close with a stream of feathers in the sky.

Pacific Northwest Radar: (Click on the links below to open the .gif files in a new window)

30 May Base Reflectivity - Portland (KRTX)

30 May Base Reflectivity – Gray’s Harbor (KLGX)

30 May Base Reflectivity - Seattle (KATX)

Here is the grand view of the winds aloft from Earth:

30 May Earth: WPD at 850 mb

Here is Paul’s archived National Radar Composite from yesterday. Look at the wind map, and then the radar.

And here are the weather maps (click on any image to bring up a full gallery view)

29 May 2014 PNW Migration Update

Some rather unstable weather, WNW winds, it’s late in the season …. and still there is a sea of feathers overhead.  Well, maybe just a puddle, but impressive none the less.

As the high pressure ridge builds in behind our recent low we can expect the winds to shift to a more northerly component, but the skies should clear.  So it will depend on the strength of the winds tomorrow night to determine the magnitude of the last covered flight of the season.  I’m hoping the winds are light and the sky is filled with the remnants of the feathered travelers.  The past few nights i have regularly heard the nocturnal flight calls of Swainson’s Thrush – it’s comforting, and brings a bit of joy to my world.

Before we take a look at the loops: “Message Date: May 28 2014 15:26:44 KRTX MAY HAVE PERIODIC DATA LOSS TODAY FROM 28/16Z THROUGH 29/02Z DUE TO AN AWIP S UPGRADE AT WFO PORTLAND.”

I have no idea what that means and i don’t really see any problems in the loop, but some more discerning eye might so, there you have it.

29 May Base Reflectivity - Portland (KRTX)

29 May Base Reflectivity – Gray’s Harbor (KLGX)

29 May Base Reflectivity - Seattle (KATX)

Here is the grand view of the winds aloft from Earth:

29 May Earth: WPD at 850 mb

Here is Paul’s archived National Radar Composite from yesterday. Look at the wind map, and then the radar.

And here are the weather maps (click on any image to bring up a full gallery view)

28 May 2014 PNW Migration Update

Less than ideal conditions, but nothing extreme.  A light westerly wind and a few rain cells to dodge – that’s about it.  So the laggards continue to lay a line north.  Densities are dropping as we are on the last legs of the journey.

Pacific Northwest Radar: (Click on the links below to open the .gif files in a new window)

28 May Base Reflectivity - Portland (KRTX)

28 May Base Reflectivity – Gray’s Harbor (KLGX)

28 May Base Reflectivity - Seattle (KATX)

Here is the grand view of the winds aloft from Earth:

28 May Earth: WPD at 850 mb

Here is Paul’s archived National Radar Composite from yesterday. Look at the wind map, and then the radar.

And here are the weather maps (click on any image to bring up a full gallery view)

27 May 2014 PNW Migration Update

Winds are light and out of the west — no big deal.  Migrants continue to flow north and are now looking to fill in the remaining nesting sites.  “FOS” is a term of the past on the listserves.  In eastern Oregon a number of expected vagrants are taking up bandwidth as birders flock to Malheur NWR as surely as Buffleheads fly to Manitoba.

This will be the last week for updates this season — unless something mega turns up in the region.

Pacific Northwest Radar: (Click on the links below to open the .gif files in a new window)

27 May Base Reflectivity - Portland (KRTX)

27 May Base Reflectivity – Gray’s Harbor (KLGX)

27 May Base Reflectivity - Seattle (KATX)

Here is the grand view of the winds aloft from Earth:

27 May Earth: WPD at 850 mb

Here is Paul’s archived National Radar Composite from yesterday. Look at the wind map, and then the radar.

And here are the weather maps (click on any image to bring up a full gallery view)