Unfortunately, there are some conditions when they cannot be used, such as a hurricane, because the wind will affect the ability of the gauge to accurately measure rainfall. You can measure the amount of rain that has accumulated by using the scale on the outside. It’s a simple device and generally just a cylinder that catches rainfall. Rain gaugeĪ rain gauge is used by meteorologists to help them measure the amount of rain over a period of time. Some chemical plants also use windsock’s so they can reduce any exposure to dangerous toxins to the environment. The windsock will be fully extended when 17 miles an hour winds are blowing, and in order to determine the direction, the wind must blowing at 3. Report this adThe FAA has standards for determining wind speed at airports. You might have seen these at airports, especially near the runway, so pilots can observe the direction and speed of the wind before takeoff. If the sock is low, the wind speed is low, and the higher the windsock, the higher the wind speed. You can measure the wind speed by the angle of the windsock to the mounting pole as the wind blows. If the air is Moist air is heavier than dry air, so when the air is humid, we sweat more (or it shows more) because our sweat cannot evaporate in the heavy, moist air.Ī simple solution to help determine wind speed and the direction the wind is blowing is a windsock. Humidity is the amount of moisture in the air, so this instrument tells weather forecasters how much moisture is in the air. On the corresponding scale, you’ll then see temperature. These expand with heat or cold, which makes the liquid move up or down. It’s a simplistic device usually made with a glass tube and contains alcohol or mercury. ThermometerĪ thermometer is used to measure how hot or cold something is. If the air pressure is falling, the weather is going to be rainy or stormy. If the air pressure is rising (getting higher), the weather will be calm and mild. Instruments used in a Weather Station BarometerĪn instrument that measures the pressure of the air. Some of these are manned and some are automatic stations that have systems in place to send data on current weather conditions in that location. Currently, there are over 10,000 in the world. They use a weather station that has all the equipment for measuring the current conditions to help provide information for weather forecasts.Ī weather station can be on land or sea.
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