12 Mar 2015 — Migration Update

The recent cloud cover and scattered showers have dampened, but not extinguished the movement northward.

Only reports of migrant movement of note in the PNW are the push of Rufous Hummingbirds, scattered Turkey Vultures, and a couple of early Ospreys.

I put both the Base Reflectivity and the Hydrometeor Classification (HC) returns from yesterday.  With the HC it becomes easier to pick the birds out of the  clouds. The BI (biological) returns are colored a brick red and really stand out.

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