Posted by: woodcreeper | August 30, 2008 @ 5:44 am

Heavy migration to the north, less to the south

It seems to be the story lately… heavy migration in the northern part of the state, with less making its way down into the southern reaches. Here’s the radar from 7:00pm last night through 5:00am this morning.

Frames are every 1/2 hour. Click on the thumbnail to view the full-sized animation.
Base Reflectivity image from Key West, FL Base Velocity image from Key West, FL Base Reflectivity image from Miami, FL Base Velocity image from Miami, FL Composite base reflectivity for the Southeastern USA

Well, the composite image shows very heavy migration over the southeast, extending all the way up into Virginia, and tapering off just south of the Big Bend region of Florida. Winds over this region have been out of the northeast and therefore birds were able to take advantage of a favorable tailwind. Given the density of migration last night, I would say that the panhandle should be seeing very high numbers of new arrivals this morning. Coastal locations along the panhandle could experience a late-morning fallout as birds that find themselves over water return to shore at first light.

Moving south, another push of birds could be seen heading from northeast to southwest across the state which could be evident along the west coast this morning, especially around Tampa Bay/ St. Pete.

The Miami radar did show some migration as well, as a concentrated pulse of birds moving NNE->SSW. Finally, the Key West radar also indicated a small pulse of birds leaving the mainland and heading over Florida Bay into the Keys, while no significant movement of birds out of the Keys and into the Caribbean could be detected.

Good Birding,


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  1. Banded our usual 10 birds at Cape Florida this morning, as the clouds thickened from huge Hurricane Gustav to the SW of us. FOS SWWA!
    Wind ripping out of the east 15-20 mph, but new migrants around anyways, and several were very fat to boot!


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