19 September 2017 – PNW Migration Update

Another night obscured by clouds.  But the birds are still moving south tonight,  we just can’t see them organized.  I know they are on the move because i’m hearing Greater White-fronted Geese flocks going overhead tonight.

We’ll take another look at the National Composite Radar. I put in a static shot, but remember you can always go to Paul’s Archive and see the whole loop, like last night’s HERE.

With pretty robust southerly winds moving across the Great Plains the Central Flyway, especially in the north was again on the moderate to light side of things.  But the eastern flyways had some pretty intense movement last night.

Advertisements

18 September 2017 – PNW Migration Update

There is not much to see on the radar due to the clouds and rain so we’ll save some disc space today and leave out the radar loop.

Over the weekend FOS  and changes noted: Sandhill Cranes are back by the hundreds, Great Egrets are staging in the hundreds, Cackling Geese numbers reaching the thousands, Golden-crowned and Fox Sparrows are showing up, Lincoln’s Sparrow and Dark-eyed Junco numbers are increasing on the valley floor as they come down out of the mountains, and Double-crested Cormorants are moving inland.

I probably missed a few as well.

A static shot of the National Radar Composite shows the very active Mississippi Flyway but with good movement down the Atlantic and moderate movement along the Central Flyway

12 September 2017 – PNW Migration Update

A solid night for migrant movement but on the modest side of things.

Today’s local radar loop has yesterday’s Barn Swallow flyout and the evening roost settling in it.  These can be seen along the Willamette River in Yamhill County.

I put in the National Composite Radar today.  The Central and Mississippi Flyways are packed, especially in the north.  And as you would expect behind the remnants of Irma — not much.

31 August 2017 – PNW Migration Update

Local radar, KRTX, is down for scheduled maintenance:

“The KRTX National Weather Service Doppler radar will go down today, August 28th,
through the remainder of this week for the second phase of upgrades to the rada
r which started last October. We anticipate the radar will return to service at
some point on Friday, September 1st. PT 8/28/2017 619 AM PDT 1319UTC.”

Regional winds are light and generally out of the north.  The Seattle radar, ATX, shows decent movement throughout the Sound and across the Strait.

Nationally birds are on the move, filling in behind Harvey.  There are still significant winds arcing over the Gulf States so Louisiana to Florida are dark.

23 August 2017 – PNW Migration Update

We’re moving deeper into the migrant season but it still seems quiet in the field.  I have missed the last couple of weekends so i am anxiously counting the days until the next.  The listserves aren’t lit up with arrivals either.

Anyway, birds are on the move; locally and nationally where conditions are favorable:

26 May 2017 – PNW Migration Update

Nighthawks have arrived in Oregon.  HERE is the map – not too impressive and these are the first arrivals to be sure.  But — This kind of ends the arrival notifications for the season; birds are still on the move however; they are settling in and looking for summer nesting locations; filling in the gaps.

It is the beginning of a long weekend and after that i will be far afield and unplugged.  There are a couple of days next week i will be checking in on migration; if i see anything pronounced i’ll post it — but i doubt that will happen.

Blue-winged Teal have been popping up here and there in the remaining wetlands throughout the region HERE  This is a spring ritual as they are late migrants and occasional breeders that winter to our south.  They are such magnificent birds it is always a treat to come across them.

The Mississippi Flyway is still electric when the conditions are favorable so we’ll take one last look at the National Composite Radar in today’s gallery as well.

24 May 2017 – PNW Migration Update

The RTX loop from last night shows what migration looks like as it begins to wind down.  Pretty decent conditions and diminished movement.  But there are still birds in the pipeline as the radar from Medford (MAX) shows.

Another sign that the end is nigh — predawn Violet-green Swallows twittering (not Trump’s type of twittering) in the dark sky above.

Today’s wind map shows two things — the first is the advance of another high ridge; could get windy out of the north as it advances.  The second is the pressure differential between the east side and west side of the northern Cascades.  Hey Seattle — that’s where your winds are coming from.  Check out Cliff’s excellent ‘explainer’ on his blog today.