A weather map is a map of the world or part of it showing at a stated time, the weather conditions like temperature, pressure, direction and velocity of the wind, humidity, clouds, visibility, nature and amount of precipitation with the help of symbols. The trained observers in observatories or in meteorological station note the temperature, pressure, directions and strength of the wind, the amount of cloud and precipitation. These observations are entered on a weather map with symbols. Thus, weather map portrays the weather elements marked with recorded symbols for a region at a particular time. It reveals the prevailing weather condition.