You probably watch the weather report — or at least check your weather app — every day, but how much beyond the temperature and rain forecast do you understand? Maybe you just want to know whether or not to bring your umbrella, but we’re going a little deeper today. If you want to understand the weather beyond preparing for the day's commute (or, these days, a simple out-of-the-house errand like walking the dog), use these terms to show off your climate knowledge.
Wind Scale
The Beaufort Wind Scale was created in 1805 by Sir Francis Beaufort, mainly for use at sea. It measures how strong winds are on a scale of 0 (completely calm) to 12 (hurricane force). The Beaufort Scale was intended for people to be able to judge wind force based on visual cues, like ripples on the water. Be on the lookout for anything stronger than a 6 — that's when you know wind will start to become an obstacle.
Barometric Pressure
Barometric pressure measures the amount of pressure in Earth’s atmosphere. Gravity attracts gases in the atmosphere toward the Earth’s surface, and barometric pressure changes depending on factors like earthly rotation and wind patterns. Changes in barometric pressure can indicate upcoming weather patterns. It’s also known to give some people headaches, so if your partner gets a migraine every time it rains, now you can tell them why. But please deliver the explanation with a few Tylenol.
Dew Point
Dew point is when the temperature drops low enough that condensation forms from water vapor in the air. The dew point is not a fixed temperature, like boiling or freezing points, but it varies based on the air pressure and humidity. All that condensation on your windows and the dew on the grass in the morning? That’s all thanks to the dew point.
Evapotranspiration
Don’t get intimidated — you learned this one in elementary school! Remember the water cycle? Evapotranspiration just means that the water on land — mostly in bodies of water, plants, and soil — evaporates into the air.
Isobar
You know those colorful rings you sometimes see on meteorological maps? Those are called isobars. Isobars show where barometric pressure is the same across the map. So if one region’s barometric pressure is lower than the one next to it, isobars will group similar regions together and separate different ones. It's more effective than a state’s borders at showing you weather patterns.
Greenhouse Effect
The Greenhouse Effect indicates when the sun’s heat and radiation get trapped in Earth’s lower atmosphere. These trapped gases make the planet warmer. The Greenhouse Effect is a natural phenomena, but an increase in gases as a result of manmade actions is causing climate change.
Tropical Air Mass
Tropical air masses form over large bodies of warm water, such as the Gulf of Mexico. Most of the time these air masses stick to the tropics and other hot climates, but as the seasons shift, they sometimes migrate farther. When a tropical air mass moves in, get ready for hot, sticky weather.
Sea Surface Temperature
Sea surface temperature is exactly what it sounds like — the temperature of the ocean surface. Buoys and satellites are commonly used to measure it. It's important for meteorologists to monitor this metric as a change of even a few degrees can impact an entire region’s climate.
Rain Shadow
Rain shadows are found in mountainous areas. One side of a mountain could get a healthy level of rainfall while the other side gets barely any at all. The mountains form a block that prevents the rain from hitting the other side of the mountain.