Bukkit

Weather Types:

- Tornado

- Sand Storm

- Snow Storm

- Thunder Storm

- Strong Winds

Commands:

/sweather set [weather type] [optional duration] [optional world]:
      It starts the specified weather type. If no duration is provided then the weather will run for the default time set in the configuration file.
      The world option is not needed for tornadoes because they will start near the player using the command.​
/sweather reload:
      Reloads the configuration file.​
/sweather stop [optional weather type] [optional world]:
      If no weather type is specified, then it will stop all of the custom weather types currently occurring.

Permissions:

sweather.admin

Dependencies:

WorldGuard

WorldEdit

WorldGuard:

If you want to prevent dangerous, player, or world affecting weather types in a particular region, use the region flag no-sweather. Be cautious because although the flag will prevent these weather types from occurring inside, weather can still affect it. For example, if flash flooding occurs just outside of the region, it will not prevent the water from flooding to enter the region.