The appearance of a storm depends on several factors, including time of day, ambient light, and the presence of precipitation. Dark, brooding grays and blacks are common during severe thunderstorms, often signaling heavy rain. However, at sunset or sunrise, the clouds can be illuminated with vibrant hues of orange, pink, and purple. Lightning can also briefly illuminate the clouds with a bright, electric white. Precipitation itself can affect the perceived color, with heavy rain sometimes creating a dark, almost bluish tint.
Understanding the visual cues associated with different storm types is valuable for meteorological prediction and public safety. Observing cloud color and formation can offer insights into the potential severity of a storm. Historically, before sophisticated radar and satellite technologies, visual observation played a critical role in forecasting. This knowledge empowered individuals to make informed decisions about safety and preparedness, protecting lives and property.