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WW PredictingWeather
WW Predicting Weather: Clouds, Fronts, Air Masses, and Weather Instruments
| Term | Definition |
|---|---|
| Cirro | Clouds that form at high altitudes, have wispy edges, made of ice crystals |
| Cumulo | Clouds that are piled up, have sharp outline |
| Strato | Clouds that are spread out like a blanket |
| Nimbo | Rain clouds |
| Cumulonimbus | Thunderstorm clouds, tall piled up rain clouds |
| Alto | Mid-layer clouds |
| Cloud Formation | When millions of water droplets condense on dust particles in the air |
| Cold Front Formation | Forms when a fast moving cold air mass pushes under a warm air mass, forcing the warm air to rise. |
| Cold Front Weather | Thunderheads can form during this front, then cool, dry, fair weather is likely to follow. |
| Warm Front Formation | This front forms when a moist, warm air mass slides up and over a cold air mass. |
| Warm Front Weather | This front brings gentle rain or light snow, followed by warmer, humid weather. |
| Stationary Front Formation | This front forms when warm and cold air meet and neither air mass has the force to move the other. They remain standing still. |
| Stationary Front Weather | Along this front, clouds and fog form, and it may rain or snow. Can bring many days of clouds and precipitation. |
| Occluded Front Formation | This front forms when a cold front catches up to a warm front. The warm air mass rises as the cold front meets up with the cool air mass beyond the warm air mass. |
| Occluded Front Weather | The temperature varies for this front. Can bring several days of clouds and precipitation followed by clear, dry weather. |
| Air Mass | A large body of air that has about the same conditions (temperature, humidity, air pressure) throughout. |
| Maritime Polar | Cold and moist air mass |
| Maritime Tropical | Warm and moist air mass |
| Continental Polar | Cold and dry air mass |
| Continental Tropical | Warm and dry air mass |
| Low Pressure System | Winds blow towards them, typically windy and bad weather |
| High Pressure System | Pushes air away from them, typically have clear blue skies |
| Temperature | A measure of the average amount of motion of molecules |
| Thermometer | Tool used to measure temperature |
| Rain Gauge | Tool used to measure the amount of precipitation |
| Relative Humidity | Compares the amount of water vapor in the air with the amount of water vapor the air could hold at a certain temperature |
| Psychrometer | Tool used to measure relative humidity |
| Barometer | An instrument that measures air pressure |
| Wind | Air that moves in one direction |
| Wind Vane | A tool that measures wind direction |
| Anemometer | A tool that measures wind speed |
Created by:
Marquart
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