Clouds
Low level clouds that spread out and look like a blanket covering the sky. Overcast weather, sometimes precipitation. Example: Fog
Stratus
Convection current where air flows from the sea to land, typically during the daytime.
Sea Breeze
A boundary between two air masses, resulting in stormy weather.
A front
A scientist that studies weather.
Meteorologist
Instrument used to measure temperature.
Thermometer
Middle level cloud that looks like a pile of fluffy cotton. Flat base and rounded towers.
Cumulus
Convection current where air flows from land to sea, typically during the nighttime.
Land Breeze
A boundary between two air masses one cold and one warm. It moves and the colder air replaces the warmer air.
Cold Front
Moving air is called...
wind
An instrument used to measure the amount of rain over a specific period of time.
A Rain Gauge
High level clouds that look thin and wispy like feathers. Made of ice crystals.
Cirrus
The weight of the air pressing down on the earth. Air moves from areas of high pressure to areas of low pressure.
Air pressure
How tightly packed the matter of an object is. Hot air and low pressure=less of this. Cold air and high pressure =high this.
Density
A prediction of future atmospheric conditions
Weather Forecast
An instrument used to measure air pressure.
Barometer
Tall cumulus clouds usually dark grey in color that result in heavy precipitation, especially thunderstorms.
Cumulonimbus
Winds that occur between 0'-30' latitude. They blow east to west and blow constantly toward the Equator.
Trade Winds
Whirling mass of warm, moist air. It is lighter and less dense so it rises and cooler air flows underneath. Low pressure brings storms, strong winds, and unstable changing weather.
Low pressure system
A layer of gases that surround the planet. Earth has 5 layers.
Atmosphere
An instrument used to measure wind speed (miles per hour or mph)
Anemometer
A rain cloud. It may be used as a prefix or suffix of another cloud.
Nimbus
Winds that occur between 30' and 60' in both hemispheres. They blow from west to east, and towards the poles.
Prevailing Westerlies
Unusual warming of the surface waters in the eastern tropical Pacific Ocean causes changes in wind patterns that have a major effect on weather around the world.
El Nino
Weather conditions of a place, averaged over years, decades, or centuries
Climate
An instrument used to measure humidity.
Hygrometer