Heavy migration into the Mid-Atlantic and Northeast

Last night marked the second consecutive night of significant nocturnal migration over the region. 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.

Base Reflectivity image from Fort Dix Base Velocity image from Fort Dix Base Reflectivity image from Dover AFB Base Velocity image from Dover AFB Base Reflectivity image from Upton NY Base Velocity image from Upton NY Composite Base Reflectivity image from the Northeastern USA

First off, let me apologize for being absent over the weekend. I was camping in DE and had no internet service.

Last night’s migration was heavy and on a S->N trajectory driven by light southerly winds. Therefore the bulk of the migration occurred between central NJ and Pennsylvania, favoring inland hotspots such as Garret Mountain and sites along the Delaware River. If you’re looking for migrant action, that’s where you should be today. Otherwise breeding birds are filling in nicely at places such as Belleplain State Forest in the south. I’d imagine that the dawn chorus in the northwest (Stokes and High Point) is also ramping up each day- which will be critical for those folks scouting for the upcoming World Series of Birding!
Since I missed posting the last two nights, here are the regional loops:

Composite Base Reflectivity image from the Northeastern USA Composite Base Reflectivity image from the Northeastern USA

As you can see, the region experienced little to no migration on the night of 4/29-4/30, and moderate to heavy migration between 4/30 and 5/1. Again, the migration that did occur between Saturday night and Sunday morning was on a S->N trajectory favoring inland hotspots on Sunday morning.

Good Birding


p.s. Please consider supporting our carbon-neutral World Series of Birding team. Details can be found in this post. Thanks so much! -The Rutgers Scarlet Knight-Herons

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One Response to Heavy migration into the Mid-Atlantic and Northeast

  1. Blake Mathys says:

    Visited Helyar Woods yesterday and today. Number of migrants increased considerably overnight; Black-throated Blue, Black-throated Green, many Ovenbirds, many Yellow, Common Yellowthroat, Black-and-white, American Redstart, Northern Parula, Red-eyed and Warbling Vireo, both Orioles, Scarlet Tanager, Rose-breasted Grosbeak, Wood and Hermit Thrushes, Eastern Kingbird, and Spotted Sandpiper all there this morning.