Why has Pokemon Emerald never had abnormal weather?

If you want to collect Kyogre and Gulado after finishing the alliance, where should you go to the weather center between 119 and 12 first? Ask the doctor, and he will tell you where the weather is abnormal. You can fly there, and when you find the weather is abnormal at the designated place, you can go back to the weather center. Maybe the location of the abnormal weather will change, and repeat it several times until the position remains the same. If it is sunny, it will be Gulado, if it rains, it will be Kyogre, Gulado will open a hole and Kyogre will dive. Good luck receiving the beast.