water falling from the atmosphere
rain sleet snow drizzle hail:
forms of precipitation.
other ways that water leaves the atmosphere.
dew and frost:
the most common form of precipitation.
a process by which rain forms in cold clouds.
a process by which rain forms in warm clouds.
a less prevalent form of precipitation that usually forms in stratus clouds.
rain that freezes once it hits something solid.
ice crystals that get blown back into a cloud until the are so heavy the fall to the earth.
precipitation falling from clouds in the form of ice crystals
the temperature at which dew forms.
a current of rising air
Developing Stage. first stage when clouds are formed due to large updrafts. humid air rises and water vapor condenses to form a clouds.
cumulus stage (thunderstorm)
When it starts raining in a thunder storm.
mature stage (thunderstorm)
downward rushes of air.
During this stage, the rain gets lighter and lighter, and the downdrafts get less and less powerful. Eventually, the storm runs its course and the rain stops.
dissipation stage (thunderstorm)
there is one updraft system and one resulting thundercloud.
Two thunderstorm effects that always accompany each other.
Thunder and Lighting
a substance that does not conduct electricity very well.
when positive charges on the ground attract some negative charges in the cloud.
When the closeness of the negative charges force positive charges up making a return stroke.
when lighting goes from the cloud to the ground.
when lighting goes from the cloud to another cloud.
When the updrafts of air begin revolving.
Whirl Stage (tornado)
when a funnel of air forms
when the funnel of air touches the ground, forms a solid base, and suck debris up into the funnel.
organizing stage (tornado)
when the tornado darkens and begins it's most dangerous stage.
mature stage (tornado)
When the forces that hold the funnel together begin to dissipate, and the tornado gets smaller.
shrinking stage (tornado)
when the tornado weakens to the point where you can't see it.
decaying stage (tornado)
tornadoes that form over the water.
a weaker form of the tornado.
storms always formed in the tropics.
tropical cyclones (hurricanes)
a vortex of whirling winds.
tropical disturbance (hurricane)
when/if the rotating wind reach a sustained speed of 23 mph.
tropical depression (hurricane)
when/if the rotating wind reach a sustained speed of 39 mph.
tropical storm (hurricane)
when/if the rotating wind reach a sustained speed of 74 mph.
tropical cyclone (hurricane)
the most pronounced feature of a hurricane.
the edge of the eye.
eye wall (hurricane)
lines of thunderstorm cells the rotate around the eye coming in as the go.
rain bands (hurricane)
when waves cause the ocean to rise a lot higher than it usually would.
storm front (hurricane)
A system of detecting reflected radio waves.
Radar (RAdio Dectection And Ranging)
a tool used for weather, and law enforcement.
Change in frequency & pitch due to motion of sound source or observer
a compilation of data.
lines that represent regions of equal atmospheric pressure.
when two air masses collide and neither moves, produces long we days.
when two air masses traveling in the same direction collide, produces long wet days, followed by storms.
lines that represent constant temperature.
tropical disturbance, tropical depression, tropical storm, tropical cyclone.
the four stages of a hurricane