Traditional Culture Encyclopedia - Weather forecast - After Poké mon Emerald arrives at Sky Dragon, how to collect Gula monsters?

After Poké mon Emerald arrives at Sky Dragon, how to collect Gula monsters?

After customs clearance, go to the second floor of the Institute of Meteorology. The researcher will tell you that there is bad weather (or rainstorm) on XX Road (or XX Waterway). Get there quickly, find a cave you have never seen before (or a diving place, mostly a cross), where you can catch Gulaton (monster). If it is not soon and there is no bad weather (or rainstorm) as the researcher said, you can only go back to the Institute of Meteorology.