Where can you find kyogre and Groudon in emerald?

What you do is go to the Wheather Institute and talk to the researcher on the 2nd floor. He will tell you about a drought or storm on a route out there. For kyogre, look for a Dive patch in the ocean that wasnt there before. you know what to do. For Groudon, go to a route that has a drought. look for a cave that wasnt there before. you know what to do. Save before entering these caves.