Ginnie Mae MBS prepayment speeds could pick up speed on the tailwind of recent hurricanes in the Southeast as a result of the forbearance measure and buyout authorization granted by the agency for affected regions. Ginnie Mae announced it is authorizing issuers, for the next six months, to buy the loans affected by recent hurricanes out of the pools for the remaining principal balance of each loan. Regions covered by the forbearance announcement include parts…