A very rainy weekend — again. It cleared up late Saturday night but too late for any birds of significant numbers to move north.
But, last night was clear and there was an accommodating south wind so the birds were on the move. We’re still at the beginning of the migration so we are not getting “green doughnuts” but we do have some 20+ dBZ returns.
In the Central Valley more Western Kingbirds are being reported as well as Common Yellowthroats. In the Portland area Violet-green Swallows, Rufus Hummingbirds, Osprey and an increasing number of shorebirds. I observed over sixty Greater Yellowlegs, a few L.B. Dowitchers and a large flock of peeps (unidentified) on the wing this weekend.
The Central and Mississippi Flyways were also pretty active last night. National Composite Radar is included thanks to Paul
Well, another night of rain. The birds are still fighting to get north and picking their way through the gaps and along the edges. The Hydrometeor sounding is the best way to see this so it is the loop i put in the gallery today.
I also put in a snap of the National Composite from Paul’s archive. Really, the only activity is in Texas and the Central Valley of CA. So, we’re not in a full blown race to the north yet — but soon.
As expected from what we saw yesterday the south winds continued through the night with scattered rain cells. And, very low levels of migrants passing through.
So lets take a look at the National Composite because there has to be some action going on somewhere. Looking at the wind map we can see the Central Flyway pretty much shut down and the best conditions are in the Mississippi and southern Atlantic Flyways.
It’s been a rather crappy week or two for watching radar returns for migrants. They have been on the move but only visible in the Hydrometeor loops and even then at low densities and opportunistically.
Now it seems KRTX – the Portland area radar is off line! So, here is a static shot of the National Composite. The Atlantic Flyway was screaming last night. And you can see the lack of returns from RTX. I hope it is just maintenance.