Weather is said to be a phenomonon ranked as 'one of seven or eight things in the world worth talking about'
WEATHER
AL DOHRAL includes the Realistic Weather System, this is a system that takes into account Temperature and Humidity to create Fog, Clouds, Rain, Thunder, Wind, and Lighning. The Temperature and Humidity are configured by a Temperature and Precipitation Zone. Basically a particular climate of an area or region. You can also get struck by lightning and it really hurts ... but is a very rare occurance as is in real life. This System also changes it's weather based upon four seasons through the Climate and Precipitation zones.
About Temperature and Humidity
Temperature of course is the real feeling and effect of either warm or cold in a particular time period. This is measured in degrees Celsius and used by HTF System, it will have an effect of how fast or slow you will feel the tiring effects of temperature.
Humidity here is slightly different than what we see in the weather reports. To save on the Relative Humidity and Dewpoint Calculations with Barometric pressure to come up with valid Humidity percentages (our poor overworked NWN engine). Humidity in this system has been given a base function of what it REALLY is. Humidity is the moisture content in air. Warmer air can hold more moisture and lessens the chance for condensation or rain. The more moisture content in the air the more potential power the air has for storms. Humidity will increase naturally and the speed at which it does is related to the Water Content of the Area or Region. Large amounts of water have more evaporation and provide more moisture into the air ... so humidity climbs.
Warm and Cold Fronts: Warm fronts do just like they describe ... they are warming periods and will not bring rain. The weather is typically very nice and mild. Cold fronts cool the air and allow for the condensation of the air. When the air condenses it falls to earth in the form of rain, ambient temperature may result in the transformation of this rain into any of a number of forms of precipitation. The more moisture in the air the more power the air has in terms of storm portential.
A Neverwinter Nights Campaign