With winds shifting to WNW the pace of migration abated a bit last night. Or perhaps they were spooked by the blood moon. Either way the march north continues just at a slower pace.
All of the swallows have been reported, a Western Flycatcher, and reports to our south on the appearance of Wilson’s Warblers. Here they come.
Pacific Northwest Radar: (Click on the links below to open the .gif files in a new window)
Here is the grand view of the winds aloft from Earth:
Here is Paul’s archived National Radar Composite from yesterday. The SE coast, a couple of spots in New England and along the Pacific Flyway. But other than that, the Northerlies had the birds sit last night out.
And here are the weather maps (click on any image to bring up a full gallery view)