Month: April 2012

  • More migration restricted to the southern tier and coastal New England

    National Overview Was, rinse and repeat yesterday’s synopsis, as the same weather systems are slowly creeping eastward. With a mixed stationary and cold front draped across middle America were seeing moderate to heavy migration up through Texas, the Gulf Coast and Florida and only a small background flight of birds up along the New England […]

  • Migration restricted to southern U.S. and along East Coast

    National Overview A stationary front draped west to east across middle America formed the northern boundary of significant migration last night, with heavy movement over Texas, Louisiana and Florida evident. Northwest winds aloft, across much of the rest of the country east of the Rockies, appears to have kept birds on the ground or restricted […]

  • The zone of migration shifts east

    National Overview A frontal boundary extending from West Texas to Lake Michigan imposed the western boundary of nocturnal migration last night, while high pressure over eastern Canada kept birds down over the northeastern U.S. This combination of synoptic weather resulted in the image you see below, where migration was concentrated along the southern coastal states […]

  • More birds push up the Central Flyway

     National Overview A cold front approaching from the west resulted in southerly flow across the Central Flyway last night, triggering heavy migration from South Texas to the Boundary Waters of Minnesota. In contrast, high pressure over the eastern Great Lakes set up northerly winds over most of the east last night, shutting down migration allowing […]

  • String of low pressure cells divide migration between northern and southern U.S.

    In an attempt to get the radar posted as quickly as possible, I will be publishing “as I go” each morning. Therefore you may see some incomplete posts throughout the early morning hours (5-6am Central; 6-7am Eastern Time). We’ll test out this method for a few weeks and see how well it works… your feedback, […]

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