[texbirds] observation of bird migration using weather forecasting technology, 4/15
- From: "John Arvin" <jarvin@xxxxxxxx>
- To: "Texbirds" <texbirds@xxxxxxxxxxxxx>
- Date: Tue, 15 Apr 2014 16:00:12 -0500
The wind map shows winds (presumably surface) blowing straight N-S from the
Gulf coast to the Isthmus of Tehuantepec and the western coast of the
Yucatan Peninsula. Thus it seems unlikely that a migratory flight will
depart these regions this evening. Whatever trans-Gulf migrants were
grounded testerday and last night seem likely to depart at dusk. Expect a
bright lift-off image around half an hour to 45 minutes after sunset. Thus
a lull between fallout last night and departure tonight that should last a
day or so.
John C. Arvin
Research Associate
Gulf Coast Bird Observatory
103 West Hwy 332
Lake Jackson, TX 77566
jarvin@xxxxxxxx
www.gcbo.org
Austin, Texas
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