Feeding Tampa Bay does mobile pantries through out the year but doesn't do a Thanksgiving specific event. You can find all their partners and distributions on their website.
From what I was told when I went there to volunteer, they are always supplying food. Not directly to the public, but to local organizations that are distributing food to the public. They do this all throughout the year.
Call them for accurate information
Feed america basically supplys the networks who distributes to the public, like your local churches etc. They do have a few outreach trucks.
Sorry don't know for sure but it sometime a week before thanksgiving
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