Calm night but the winds are a-changin’

Drew WeberGeneral News and Info1 Comment

Regional Overview

NW Ohio was the only part of the region I covered that had north winds last night, and it was the only region that showed any amount of southbound migration.

The biggest story right now is the huge front that is working its way east and should bring us good north winds over the weekend. There are a lot of birds bottled up that should take advantage of the change in conditions.

I don’t always have time to comment on the radar in each state. To interpret it yourself, read the quick tutorial at the bottom of the page.

New York

Click on the thumbnail to view the full-sized animation.


Pennsylvania & New Jersey

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Ohio

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Ohio prediction coming soon…


Maryland and Delaware

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Prediction coming soon…


Quick guide to interpreting the radar

On the top row (reflectivity radar), the images show the magnitude of migration. When birds are migrating, it looks like a donut shape around the center of the radar station.

The bottom row is the velocity radar. This shows the direction that the objects detected by the radar station are moving. Blues are moving towards the radar station, yellows and reds are moving away from the station. So for southbound migration, blue should be on the top half of the donut, yellow on the bottom half.

Watch for precipitation moving through during the night hours, this can cause birds to stop migrating in a concentrated area, creating the fabled ‘fallout’, particularly on nights with strong migration.

For more in depth info, watch this video.
For migration updates or other regions check-

Pac NW – Birds Over Portland by Greg Haworth

I need your help! These reports will only be as good as the feedback I get on these updates. Please leave comments on interesting patterns of migration you are seeing in the field so I can incorporate some ground truthing to my forecasts and predictions. Thanks!