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Hi all,

 

               The readings for upper level winds has just been posted.
These are posted twice a day throughout the world, at 7 am & 7 pm in the US.
Winds at about 2600 ft, the approximate altitude at which birds fly, are SSW
along the coast from LA to NW FL. at about 20 mph. What is not known is
direction and velocity over the Gulf, since readings can only be taken from
land based stations. So birds approaching the coast have a good tail wind
and can be shifted our way somewhat. The degree of shift would depend on
what was going on aloft farther south in the Gulf, a big unknown. At any
rate, it should not change the situation in the birding forecast much if the
squall line is not far into the Gulf and birds have high tail winds, whether
out of the S or SW.

 

Bob Duncan


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