Birds behind the front

National overview

A cold front draped across the country from Nevada to the Ottawa, Canada marked the southern boundary of moderate to heavy migration down into the midsection of the U.S. this morning. High pressure over the Southeastern U.S. also allowed birds to move south but migration densities were much more diffuse. Migration was also evident across the western U.S. all the way to the Pacific Coast. Birders along the aforementioned front this morning should be on the lookout for high densities of birds locally.

Right now my computer is on the fritz, showing it’s age and having a really hard time handling the radar processing and timely posting. Until I can get a new one, I’m going to have to scale back posting the radar. I’m sorry for any inconvenience.

national composite nexrad from around 11:00pm on 9/10/13

National Composite NEXRAD from around 11:00pm on 9/10/13

Below are the radar loops from sunset last night through 5:00am (central time) this morning

Upper Midwest

Minnesota

Frames are every 1/2 hour. click on the thumbnail to view the full-sized animation.

base reflectivity image from Duluth base velocity image from Duluth

base reflectivity image from Minnesota base velocity image from Minnesota

Wisconsin

Frames are every 1/2 hour. click on the thumbnail to view the full-sized animation.

base reflectivity image from green bay, wi base velocity image from green bay, wi

base reflectivity image from milwaukee base velocity image from milwaukee

base reflectivity image from la crosse, wi base velocity image from la crosse, wi

Iowa & Illinois

Frames are every 1/2 hour. click on the thumbnail to view the full-sized animation.

base reflectivity image from davenport, ia base velocity image from davenport, ia

As always, woodcreeper.com depends on you to report your sightings and be our ‘eyes on the ground’, so please come back and give us an idea of how we’re doing predicting birding conditions in your neck of the woods.

Good Birding,

David

For migration updates in other regions check-

Michigan’s Upper Peninsula - The Northwoods BIRDAR by Max Henschell
New England - Tom Auer’s blog
Florida/SE - Badbirdz Reloaded by Angel and Mariel Abreu
PA/Ohio Valley - Nemesis Bird by Drew Weber
NW Ohio - Birding the Crane Creek by Kenn Kaufman
Pac NW - Birds Over Portland by Greg Haworth
Continental US - eBird BirdCast Forecast & Report by Team eBird

This entry was posted in Birds, Fall Migration 2013, Forecast, Migration, Migration Radar, NEXRAD Migration Study. Bookmark the permalink.

One Response to Birds behind the front

  1. Shawn says:

    At 0500 this morning, I heard several flight calls over my yard near Grand Rapids, MN over about 5 minutes. Attempted an accurate count, but traffic noise was disruptive. Roughly half of the calls sounded like thrushes.