07 May 2014 PNW Migration Update

The ridge of high pressure remains in place.  So do the light NNW winds.  We had decent turnover last night at a moderate pace.

It seems, seems mind you, that Swainson’s Thrush are being reported.  These are vanguard birds with the bulk of them still on their way.  Willow Flycatchers, Red-eyed Vireos, never an abundant species in the PNW, and Common Nighthawks, the last migrant to arrive, are the only neotrops left to be reported.  Western Wood Pewees showed up a couple of days ago.

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

07 May Base Reflectivity - Portland (KRTX)

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

07 May Base Reflectivity - Seattle (KATX)

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

07 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. One look at the Earth Wind map and you just know the Central and Mississippi Flyways are going to be jammed with birds.

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

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