[texbirds] Re: Monitoring spring bird migration in the western Gulf of Mexico region using NEXRAD weather radar
- From: lmj6464@xxxxxxx
- To: jarvin@xxxxxxxx, texbirds@xxxxxxxxxxxxx, LABIRD-L@xxxxxxxxxxxxxxxx
- Date: Thu, 25 Apr 2013 19:35:03 -0400 (EDT)
Dear Texbirders,
The fallout was pretty spectacular today in the Corpus Christi/Port Aransas
area. It was the best day that I can recall in several years, at least.
Larry Jordan
Corpus Christi
-----Original Message-----
From: John Arvin <jarvin@xxxxxxxx>
To: New Texbirds <texbirds@xxxxxxxxxxxxx>; LABIRD-L <LABIRD-L@xxxxxxxxxxxxxxxx>
Sent: Thu, Apr 25, 2013 12:25 pm
Subject: [texbirds] Monitoring spring bird migration in the western Gulf of
Mexico region using NEXRAD weather radar
Reports would seem to indicate that yesterday's fallout continues and that
it ranged from phenomenal around Brownsville/South Padre Island to o.k. but
not great at High Island and then picked up again eastward to include New
Orleans. Winds are beginning to take on an easterly component so I expect a
pretty major exodus tonight. The northerly or northeasterly winds are still
shallow and winds above 3000 ft. are still south. Based on yesterday's
events it seems that birds approaching landfall did not increase altitude
to get into tail winds. Perhaps the turbulence along the altitude when the
N winds meet the S winds is a barrier to doing so.
As for right now NEXRAD only Brownsville shows incoming migrants which
appear to be falling out along the coast. This may just be the vanguard for
a region-wide flight that has yet to reach the northern Gulf coast. There
is a consistent band of clustered showers all along the coast just
offshore, but a barrier none the less to incoming migrants which will
certainly put down a certain percentage of them. Expect the afternoon to be
lively. What remains after tonight depends on whether the return of good
migration conditions occurs tonight.
Last night there was a notable lift-off from all points so it is surprising
that as many birds remain in coastal stop-overs today.
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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