Clouds
Masses of puffy, white clouds, often with flat bases, that form when air currents rise are called ___ clouds.
cumulus
Its interaction with air and water is what causes weather.
The Sun.
When severe weather conditions already exist, a(n) __ is issued.
warning
____ forms when the air temperature is below freezing and water vapor changes directly to solid.
snow
All lightning occurs inside clouds. True or False
An example of a mid-level cloud is either ____stratus or ____cumulus
alto
direction of rotation of low pressure system in northern hemisphere
counterclockwise
Most hurricanes are extremely ____ pressure weather systems.
low
a form of precipitation that can break windows and destroy crops
Hail
About ____% of all lightning reaches the ground.
25
High, thin, white, feathery clouds containing ice crystals are usually associated with fair weather, but they can also indicate approaching storms. These clouds are called ___ clouds.
cirrus
Areas of low-pressure usually have ____ weather.
bad
cloudy
A ___ studies and forecasts the weather using data gathered from many sources.
meteorologist
____ forms when raindrops pass through a layer of freezing air near Earth's surface, forming ice pellets.
sleet
The shock wave created from lightning (called thunder) moves at the speed of ___________.
Low, layered gray clouds that produce light precipitation are ___ clouds.
stratus
The boundary between cold and warm air masses is called a(n) ________.
front
Violent storms generally form along ____ fronts.
cold
The most powerful severe storm is the ___.
Hurricane
Lightning occurs less frequently in ___ climates and over open ___.
colder, seas
Fog is a ____ cloud that forms near the ground.
stratus
____ humidity is a measure of the amount of water vapor that air is holding compared to the amount needed for saturation at a specific temperature.
A(n) _______ _______ shows weather conditions at one specific location.
station model
Precipitation and storms occur at ___.
fronts
Lightning can cause problems with _________ _____________ and electrical plants.
rocket launches