Alter Aeon Online Help

Keywords are:  'druid spell control weather'

Spell: control weather          Mana:  40  Int: 16  Wis: 18  Lvl 11 Drui  (28%)
                                (critical)   
                                Group: Druid sky

Usage:
cast control weather <keyword>

Available control weather keywords are:
wet      - raise humidity, needed to start snow and rain
dry      - lower humidity, used to break cloud cover
hot      - raise temperature
cold     - lower temperature, needed for snow
windy    - needed for storms
still    - breaks up storms
storm    - attempts to create stormy conditions
snow     - attempts to create snowy conditions

The 'control weather' spell is used to change the weather in a small
area.  Controlling the weather takes time and large amounts of mana, and
does not last very long, but when it is used successfully it can allow
for devastating attacks.

Note that controlling the weather in one room also affects nearby rooms.
The effect is weaker as you get farther away, but it is possible to
generate storm conditions at a safe distance from most creatures.

You can use the 'weather' command to display the current weather.