In the context of weather, what does the symbol "+" indicate?

In meteorological symbols, a plus sign (+) typically indicates "heavy" when referring to precipitation intensity. This symbol is often used in weather reports and forecasts to signify that the amount of precipitation is significant, which could include heavy rain, snow, or other forms. The use of symbols like this helps quickly convey important weather conditions to pilots, including those operating unmanned aircraft, as they plan their flights.

Understanding this symbol is crucial for ensuring safe operations in varying weather conditions, as heavy precipitation can significantly impact visibility and aircraft performance. Other symbols in meteorology carry different meanings, and it’s essential to grasp these distinctions to interpret weather data accurately.