Category: Spring Migration 2013

  • Southerly flow up the central US triggers moderate to heavy migration into the region

    National overview As a string of low pressure cells moved eastward across the US, they brought with them more southerly flow from Texas to the Twin Cities of Minnesota. Migration was heaviest throughout the middle of the country, but significant influx into the northern reaches was thwarted by heavy precipitation associated with the front. Otherwise […]

  • A response to a comment on “overshoots”

    I got a reply on my last post from “barabooHills” and felt a response required a visual aid, so I’m writing a new post to that effect. Here’s the original reply: I saw on birdcast there are some chances for overshoot next week in our area and I was hoping you might share some thoughts/predictions […]

  • The Highs are back in town

    National overview Last night the high pressure returned to most of the interior US bringing with it more northerly flow and dampening any significant migration across the region. A few areas did see some movement, though, namely the Pacific coast, along the frontal boundary from Missouri to Ohio and a bit into the Northeast, and […]

  • Some new birds into the region

    National overview An approaching cold front set off a sector of migration in the Midwest last night, while most of the Plains region was under the influence of high pressure and therefore experienced little to no migration. Farther south a strong and moisture-laden low-pressure system churned over the Gulf states and brought with it north […]

  • High pressure begins to dissipate and the floodgates spring a small leak

    National overview Again high pressure dominated most of Central US last night as a series of low pressure systems begin to make their way in from the west. Migration was limited to the southern portion of the country and mostly concentrated along the Gulf Coast. Heavy precipitation along the Texas Gulf Coast may cause some […]

Follow

Get every new post delivered to your Inbox

Join other followers: