02 Apr 2014 PNW Migration Update

The small ridge of high pressure has eased inland over night and has pushed the weather east.  The north winds are light and not forceful enough to keep the migrants grounded.  Looking at the loops from last night we see the west counties loaded up while the east counties were dealing with the remnant low.

The coast and the I5 corridor to our north also had significant migrant turnover so those loops are included in today’s update.  Yellowthroats, Orange-crown Warblers, and shorebirds are all popping up on the listserves.  As well as the usual overly optimistic sightings of Swainson’s Thrushes.  Sigh.

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

02 Apr Base Reflectivity - Portland (KRTX)

02 Apr Base Velocity - Portland (KRTX)

31 Mar HC - Portland (KRTX)

02 Apr Base Reflectivity – Gray’s Harbor (KLGX)

02 Apr  Base Reflectivity - Seattle (KATX)

Here is Paul’s archived National Radar Composite from yesterday.  The Atlantic Flyway has it’s first significant widespread migration event last night.  Cuban birds jumped the Straits, and the Gulf Coast was lit up again.  Good stuff!

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

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