Show:
Thunder & Lightning
Tornadoes
Hurricanes
Thermometers
Miscellaneous
100
An electron stream that jerkily travels from a cloud during a thunderstorm.
What is a stepped leader?
100
a rotating column of air that starts on the ground and is NOT associated with a cloud.
What is dust devil?
100
A tropical cyclone with wind speeds of 74 miles per hour or more.
What is a hurricane?
100
measures relative humidity.
What is hygrometer?
100
Lines of equal pressure on a weather map.
What is isobars?
200
A brilliant flash of a lightning bolt 
What is a return stroke?
200
Tornadoes are classified using this scale.
What is Enhanced Fujita Scale?
200
The elevated water level caused by hurricane's winds.
What is the storm surge?
200
Measures atmospheric pressure.
What is barometer?
200
A weather instrument that simultaneously measures and transmits meteorological data from weather balloons to weather stations. 
What is radiosonde?
300
The thunderstorm stage marked by the arrival of precipitation.
What is the mature stage?
300
The rapidly swirling cloud that is the most distinctive visual feature of a tornado.
What is condensation funnel?
300
the long, narrow lines of thunderstorms in a hurricane.
What are rain bands?
300
Uses radio waves to detect objects and measure their distance.
What is radar?
300
Line of equal heat.
What are isotherms?
400
A fierce, single-updraft thunderstorm.
What is supercell?
400
A tornado that forms over water
What is waterspout?
400
The center of a hurricane.
What is eye?
400
Measures the amount of precipitation.
What is rain gauge?
400
An abrupt discharge of electricity through the air.
What is lightning?
500
The most intense type of a downburst.
What is a microburst?
500
A narrow funnel of powerful, rapidly whirling wind that stretches from a cloud to the ground.
What is tornado?
500
Hurricanes are ranked on this ________ Hurricane Wind Scale.
What is Saffir- Simpson?
500
Measures the distance from the ground to the base of  the clouds.
What is ceilometer?
500
Maps that give a summary of the weather conditions throughout the entire country at a single point in time.
What are Surface Weather Charts?
600
Air that is warm near the ground but very cold at higher altitudes.
What is unstable?
600
A concentrated downward blast of wind
What is downburst?
600
A tropical cyclone with wind speeds between 39 miles per hour and 74 miles per hour.
What is tropical storm?
600
Measure wind speed.
What is anemometer?
600
 long line of advancing thunderstorms, usually moving ahead of a cold front.
what is squall line?