Air Pressure
Clouds
Weather
Vocabulary
Fronts
Severe Weather
100
cyclones
What is low pressure?
100
Gray clouds that cover the lower part of the sky; rain or snow falls from them
What are stratus clouds?
100
The state of the air at a certain time and place
What is weather?
100
Boundary between two air masses
What is a front?
100
This is issued when conditions are favorable for severe weather to form, but the weather has not started yet.
What is a watch?
200
Anticyclones
What is high pressure?
200
White, puffy clouds that look like piles of cotton; they are known as fair-weather clouds
What are cumulus clouds?
200
Scientists who study weather
Who are meteorologists?
200
A ______________ forms when warm air moves into an area occupied by cooler air
What is a warm front?
200
A intense low pressure vortex that form in some severe thunderstorms; winds can exceed 300mph.
What is a tornado?
300
This flows from high pressure to low pressure
What is wind?
300
Thin, feathery clouds that appear high in the sky; they are a sign that rain or snow is on the way
What are cirrus clouds?
300
Instrument that measure air pressure
What is a barometer?
300
A _______________ forms when neither a warm nor a cold air mass moves but they meet; light to moderate precipitation for a long time period.
What is a stationary front?
300
Severe weather event with temperatures around 10 degrees with high winds and blowing snow for at least 3 hours
What is a blizzard?
400
Rainy, cloudy weather
What is low pressure?
400
Cloud that forms at the earth’s surface
What is fog?
400
Measures wind speed
What is an anemometer?
400
Light to moderate precipitation for a period of time with warming temperatures can be found at this type of front
What is a warm front?
400
A low pressure system that forms over warm ocean waters of the Atlantic Ocean between June and Novemeber
What is a hurricane?
500
Lines that connect points of equal pressure
What is isobars?
500
Tall, dark clouds that mean thunderstorms with heavy rain and strong winds
What are cumulonimbus clouds?
500
Instrument used to measure relative humidity and dew point
What is a psychrometer
500
This occurs when a cold front over takes a warm front.
What is an occluded front?
500
An alert sounded when a severe weather event is occurring and you need to seek shelter immediately.
What is a warning?