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unstable air what are the two conditions required to form a thunderstorm
lightning what is a short-lived bright flash of light produced by an abrupt discharge of electricity through the air
return stroke what phase of a lightning bolt is seen as a brilliant flash of light
cumulus stage the stage in the life of a thunderstorm
thunder a lightning bolt that expands explosively forming a shock wave of sound
thermometer used to to measure temperature
barometer used to measure atmospheric pressure
aneroid barometer uses a flexible, airtight metal box to measure changes in pressure
hygrometer used to measure relative humidity
weather vane a simple device that points into the wind
rain gauge an open, cylinderacal glass jar with a ruler on the side
ceilometer measures the distance from the ground to the base of the clouds
supercell what term refers to a thunderstorm with a single, giant, rotating updraft
Created by: njcascience