09 May 2014 PNW Migration Update

The low pressure cell has slid down the coast of BC a bit and the winds are now mostly westerlies.  Lots of rain.  Not much migration.  There are always birds trying to pick through and we can see them in the loops and confirm they are most probably birds in the  HC loop.

This is a pretty well organized and slow moving low.  I think we’ll be looking at more rain and north winds for a couple more days.  The rain might let up earlier but the north winds probably wont.  So it’s probably going to slow down the migrants a bit over the weekend.

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

09 May Base Reflectivity - Portland (KRTX)

09 May HC - Portland (KRTX)

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

09 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)

Next update is scheduled for Monday the 12th.