What instrument helps determine wind direction when reading weather maps?
compass rose
Which instrument carries instruments to high altitudes to measure pressure, temperature, humidity, and wind speed?
weather balloon
Which front has a cold air mass is replacing a warm air mass?
cold front
What is this the symbol for?
cold front
Which front is a boundary between two different air masses, neither of which is strong enough to replace the other?
stationary
What is this the symbol for?
warm front
What type of weather is associated with a high pressure system?
Clear and sunny
What is this the symbol for?
stationary front
What is the instrument used to measure air pressure?
barometer
Which front has a warm air mass is replacing a cold air mass?
warm front
What type of weather is associated with a low pressure system?
Cloudy with precipitation
This air mass sits near the equator for a while, it becomes warm and moist .
tropical
What is a localized and violently destructive windstorm occurring over land characterized by a funnel-shaped cloud extending toward the ground?
tornado
Which air mass forms over land and is dry?
continental
What is a small storm often accompanied by heavy precipitation and frequent thunder and lightning?
thunderstorm
What do the connected lines (isobars) mean?
they have the same air pressure
Which instrument measures wind speed in mph?
Anemometer
Pressure ____________ as height increases above Earth.
decreases
What is a severe storm that develops over tropical oceans and whose strong winds of more than 120 km/h spiral in toward the intensely low-pressure storm center?
hurricane
What type of front occurs when a fast moving cold front overtakes a warm front pushing it up and over cold air?
occluded front