Whenever I use the /weather2 storm create command the storm drops a level of intensity and starts weakening. So if I use /weather2 storm create Hail alwaysprogress it will spawn in a weakening wind storm.

Same with regularly spawned storms

So storms need Element to progress if it's above the ocean, i'll increase into Hurricane, if it's on land, it'll turn into Tornado, but check config, Storms have a Chance to progress into bigger storm, but only on 1.12.2, other version are not supported anymore

1.12.2 is nearing end of life, you can try weather2 remastered though as it is targeting and being supported for 1.12.2. If you have any issues you can post it on the Mrbt0907 repo. Likewise, this issue may be closed if the fork works. Happy modding!