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No migration as warm front pushes northeast
Winds were southwesterly as the thunderstorms rolled in on a warm front last night. Here’s the radar, mostly so you can see what “no migration” looks like, and how precipitation has a very different signature than birds. The frames are from 7:00pm last night through 5:00am this morning. For whatever reason the Fort Dix radar […]
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Few birds overnight
Light southerly winds to the north, and easterly winds to the south, appear to have discouraged any major migration last night. 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. Despite the suboptimal wind conditions, the radar did show […]
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Heavy migration on northeast winds
Clear skies and northeast winds set the stage last night for another big push of birds over the mid-Atlantic. 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. While the reflectivity images indicate heavy migration over the Garden State […]
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Birds on the move as cold front clears mid-Atlantic
Last night’s radar was a great example of the “migration window”, something I’ve mentioned in previous posts, but rarely get to see play out. 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. The “migration window” I’m referring to […]
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Very little migration
I’m not going to post the radar in the morning, since it’s 1:36am and I’m planning on sleeping for at least 8 hours tonight (this morning). A small number of birds did take to the sky just after sunset, but due to the strong southerly headwind, all migration ended soon after it began. Don’t expect […]