Leaving Stone Island, Mazatlan, need advice ASAP

NHC is calling it a tropical storm while off shore and a tropical depression when it hits shore. Your greatest dangers will be driving during the heavy rains and sitting too close to the beach. Otherwise, I don't see it being a problem.
head due east and south if you feel like you need to move. They only travel at 20 mph or so, easy to stay away if you don't run into traffic. It has been tracking north since it was born and is projected to proceed in a northeast direction.