2004 · 资料书（用于增强玩法的规则/选项）

Weather

This supplement presents weather as a combination of three hazards: temperature, wind, and precipitation. Each hazard has its own effects, allowing conditions such as heat, cold, storms, fog, rain, and hail to be combined into varied weather patterns. Guidelines and sample storms help create sensible short-term conditions and long-term weather for different areas, while adapting relevant traits from the core rules to the supplement’s classification system.