Category: Spring Migration 2012

  • Birds continue to move up through the middle of the U.S. and taper off in the east

    National Overview A strong migration signal was apparent across the middle of the US from Texas to Minnesota as a series of surface lows make their way east across the Great Plains. Southerly flow along these fronts created the optimal migration weather which continued eastward to the Great Lakes and decreased to the East Coast […]

  • Migration continues up through the Plains and along the East Coast where southerly flow is strongest

    National Overview The east sides of both a warm front stretching down across the Great Plains and a cold front running down the East Coast represented the main transit lines for northbound migrants last night. Birds continue to move north out of the Gulf states, as well, with Circum-Gulf migration into Texas apparent on the […]

  • High pressure puts damper on Upper Midwest while front brings birds to East Coast

    National Overview Here’s the radar- I’ll be back tomorrow with more interpretation. Below are the radar loops from sunset last night through 5:00am (central time) this morning Since I will be publishing “as I go” each morning you may see some incomplete posts throughout the early morning hours. Don’t worry- it’s coming! Mid Atlantic Delaware […]

  • Spring migration continues

    National Overview One of the fascinating things about spring migration is that once it gets going, it really doesn’t die down until June. Conditions were mixed across the country due to a number of surface lows and frontal boundaries, with precipitation along the East Coast keeping some birds from moving locally. At the regional scale, […]

  • More birds moving north

    National Overview With the exception of the southeastern U.S. being under heavy precipitation, most of the country experienced moderate to heavy migration last night. I’m going to keep this short and sweet in the interest of catching up from being away for two days… and my desire to get outside where the birdsong is almost […]

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