Most of the water that evaporates into the atmosphere returns to earth as this.
What is precipitation?
100
The approximate length of a single cell thunderstorm.
What is 30 minutes?
100
The first stage of a tornadoe's development when the updraft of air forming a cumulonimbus cloud begins being hit by winds blowing a in different direction at higher altitudes.
What is the whirl stage?
100
The tool used by meteorologist to measure speed of winds and air masses.
What is Doppler Radar?
100
A weak version of a tornado.
What is a dust devil?
200
The most common form of precipitation.
What is rain?
200
A current of rising air.
What is a Updraft?
200
A funnel of air whirling both around and up.
What is a vortex?
200
A device that collects data continuously all over the world and gives us an accurate global picture of the weather.
What is a Weather satellite?
200
A substance that does not conduct electricity very well.
What is insulator?
300
The process that deals with how rain is formed in cold clouds.
What is Bergeron?
300
The state of a thunderstorm when the updraft pulls more and more warm, moist air into the atmosphere.
What is the cumulus stage?
300
When the funnel of air touches the ground it starts what stage of the tornado.
What is the organizing stage?
300
Thin black lines on a weather map.
What is isobars?
300
A tropical disturbance in which the rotating winds reach a speed of 39 miles per hour.
What is tropical storm?
400
Formed when an ice crystal or raindrop is blown back into the cloud by an upward gust of wind.
What is Hail?
400
The stage of the thunderstorm when water droplets and/or ice crystals become too large for the updraft and it begins to rain.
What is mature stage?
400
A more proper name for Hurricanes.
What are tropical cyclones?
400
A thick line on a weather map that has ovals on one side and triangles on another represents.
What is a stationary front?
400
Although not considered precipitation, two other means by which water can leave the atmosphere.
What is dew and frost?
500
In warm clouds. meteorologist think that rain forms according to this process.
What is the collision-coalescence process?
500
Thunderstorms are best known for these two effects that always accompany one another.
What is thunder and lightning?
500
The most pronounced feature of a hurricane.
What is its eye?
500
A line that has both ovals and circles on the same side.
What is an occluded front?
500
Jerky movement of negative charges from clouds attracted by positive forces on the ground.