NEW ORLEANS (AP) - A key ship is preparing to move back toward the site of BP's broken oil well as the remnants of Tropical Storm Bonnie weaken over the Gulf. A BP spokesman says the rig drilling the relief tunnel that will blast mud into the broken well to permanently seal it is getting ready to head back. The vessels relaying video images and seismic readings from undersea robots monitoring the leaky well are still in place and may be able to stay. Bonnie made landfall south of Miami early Friday as a feeble tropical storm with top sustained winds of 40 mph. It broke apart as it crossed Florida and was barely a tropical depression as it moved into the Gulf. Forecasters said it was weakening and less likely to strengthen as it neared the spill site.