It happened again last night, where building southwest winds along the east coast triggered moderate to heavy levels of migration into and out of the Mid-Atlantic. Here’s the radar from sunset last night through 5:00am this morning. Frames are every 1/2 hour. Click on the thumbnail to view the full-sized animation. Unfortunately the NYC radar […]

The next cold front heading eastward is causing strong southwesterly flow to form over the region. This will be followed by some heavy rain before the front clears, and then strong northerly winds behind the front. This means that even if the rain fails to stop the birds from migrating through, the winds most likely […]

Migration kicked into high gear last night as southwest winds across the region triggered a moderate to heavy flight across the Mid-Atlantic and Northeast. Here’s the radar from sunset last night through 5:00am this morning. Frames are every 1/2 hour. Click on the thumbnail to view the full-sized animation. The winds aloft (~3000 ft.) were […]

Last night’s southwest winds triggered migration over NJ, NY and much of the Northeastern US while lingering storms along the warm front to our south precluded any new arrivals. Here’s the radar from sunset last night through 5:00am this morning. Frames are every 1/2 hour. Click on the thumbnail to view the full-sized animation. Birds […]

A frontal boundary stretched across the US restricted migration into the Mid-Atlantic last night. Here’s the radar from sunset last night through 5:00am this morning. Frames are every 1/2 hour. Click on the thumbnail to view the full-sized animation. You can see the remnant low pressure system in the NE composite image as it peters […]