1.qa Do Now 1. _____amount of moisture in the air (humidity) 2. _____layer of gases that surrounds the Earth and keeps it warm and wet (atmosphere) 3. _____type of front that no horizontal movement occurs, rains for days and is followed by warm temperatures (fronts) 4. _____changes from liquid to water vapor (water cycle) 5. _____type of pressure that is made of warm air, is less dense, and rises (wind)

Weather Maps

 3.Isobars are lines on a weather map that connect points of equal air pressure.  Closed circles are high and low pressure

2. Weather Tools  Thermometer-temperature  Barometer-air pressure  Psychrometer-relative humidity  Anemometer-wind speed  Windsock-cone shaped bag for wind direction  Wind vane-wind direction  Radar-location, movement, intensity of precipitation  Weather satellites-orbits Earth measures wind speed, humidity, and temperature