12 Mar 2014 PNW Migration Update

As the leading edge of the high pressure ridge moves inland the north winds subside and opens a window for unimpeded nocturnal flights.  And the flight was sustained and widespread.

Taking a look at the reflectivity plot we can see patches of heavy (15 – 20 dBZ) returns early in the flight, mainly to our north.  Also note the interesting bloom to our southwest later in the flight.  The bulk of the flight is of fairly low density in the 10 dBZ range

I threw in the set of loops from the LGX radar up around Gray’s Harbor to look in on conditions along the coast.

Click on the links below to open the .gif files in a new window.
Gray’s Harbor:
12 Mar Base Reflectivity - Gray's Harbor (KLGX)
12 Mar Base Velocity - Gray's Harbor (KLGX)
12 Mar HC - Gray's Harbor (KLGX)

Portland:
12 Mar Base Reflectivity - Portland (KRTX)
12 Mar Base Velocity - Portland (KRTX)
12 Mar HC - Portland (KRTX)

Here is the link to Paul’s archived National Composite radar image.

Below is the weather gallery. Click on any image to bring up a full gallery view.

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