14 March 2017 – PNW Migration Update

Birds continue to pick their way north; choosing their place and time between and in the gaps of the storm cells.  I put in the Hydrometeor loop today so it is easier to pick out the birds – look for the brick red biological returns.

Late this morning we see a pretty decent flight up the east valley once the heavier rain moves through.

13 March 2017 – PNW Migration Update

As suspected (but not verified because of the terrible weather recently) migration is in full tilt.  Mostly, waterfowl are on the move it seems.  I’m not seeing any reports of widespread passerine movement.  There has been reports of Violet-green Swallows and a few reports of vanguard Osprey.  Last night’s movement was aided by a SE wind.

10 March 2017 – PNW Migration Update

Well,  The birds have been picking their way north for a few weeks now, but because of the nearly constant rain it has been damned hard to pick them out of the radar noise.  Even the HC was not reliably designating biological returns.

Last night however, once the rain moved through, we got a decent migration signature.  On today’s loop, wait for the rain to pass and you will see the flight — up into the 20 dBZ range.

Tree and Violet-green Swallows as well as Turkey Vultures have made it to the Portland area.  Even Barn Swallows are being reported in Clallam County in Washington.  Western Kingbirds are in the Central Valley in California as well.  Waterfowl numbers are down a bit too.

21 February 2017 – (PNW) Migration Update

… (PNW) in parentheses because we can’t see squat on the radar through the heavy cloud cover.

But, birds are moving north and HERE is a great example from the Anzo Borrego.

Update: it occurred to me that you might need to subscribe to the San Diego Region Birding list; not something everybody might want to do.  So HERE is a direct link to the video.

14 February 2017 – Ready or Not, Here They Come

Sheesh!  I think this is the earliest 20 dBZ pulse i have seen.  Right up the middle of the Valley.  Probably water fowl coming off the NWR’s headed north.

04 November 2016 – PNW Migration Update

Light north winds but clear skies, even with migration winding down, we still have a few migrants moving south.

With RTX off line we’ll take a look at the other two regional radars today; ATX in Seattle and LGX on the coast at Gray’s Harbor.