23 October 2013 Migration Report

Odd weather indeed.  Light to moderate levels of migration last night, with Seattle and the Puget Sound seeing the heaviest.  There is still directional movement being seen, but also a lot of just moving around.  Migrants will continue to trickle south, but without urgency.  This flat, stationary ridge is making for shifting winds but without any force.  Migrants are not facing any challenging conditions.  Here’s the current eBird map of Bufflehead sightings, and here is the map for Tundra Swans.  The paucity of sightings clearly shows there arel plenty of birds to our north, but the meager radar returns indicates it’s only the winter residents that are left.

Here are the radar loops from last night:
Base Reflectivity - Portland (KRTX)
Base Velocity - Portland (KRTX)
HCA - Portland (KTRX)

Base Reflectivity - Gray's Harbor (KLGX)
Base Velocity - Gray's Harbor (KLGX)
HCA - Gray's Harbor (KLGX)

Base Reflectivity - Seattle (KATX)
Base Velocity - Seattle (KATX)
HCA - Seattle (KATX)

Here is Paul’s archived National Composite from last night.

Here is the weather gallery:

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