Chapter 7 Review
Atmospheric pressure at sea level in pounds per square inch
14.7
water that falls to the earth, including rain, sleet, hail, and snow
Precipitation
forms brilliant flash of lightning bolt
large, rotating updraft in a supercell thunderstorm
mesocyclone
measures air temperature
thermometer
Circulating spiral of wind around a low-pressure system
Cyclone
water vapor in the air that touches cooler ground and turns to a liquid
dew
electron stream that jerkily travels from a cloud during a thunderstorm
stepped leader
Elevated water level caused by a hurricane's winds
storm surge
hygrometer
measures relative humidity
Change in direction of winds caused by Earth's rotation
Coriolis effect
Phenomenon that occurs when an area receives an abnormally low amount of atmospheric water over a long period
Drought
a long line of advancing thunderstorms, usually moving ahead of a cold front
squall line
long, narrow lines of thunderstorms in a hurricane
rain bands
measures high-altitude weather conditions
weather balloon
extremely powerful radiation that comes from deep space
Cosmic rays
air mass that brings hot, dry air
most intense type of downburst
Microburst
tropical cyclone with wind speeds between 30 miles per hour and 74 miles per hour
tropical storm
measures wind speed
anemometer
Type of wind when air is flowing down a mountain's slope due to differences in temperature and pressure
Katabatic
Process that rain forms in clouds with temperatures above freezing point
Collision coalescence process
Fierce, single-updraft thunderstorm
supercell
rapidly swirling cloud that is the most distinctive visual feature of a tornado
condensation funnel
measures the distance from the ground to the base of clouds
Ceilometer