Thunderstorms/Tornadoes
What is a localized storm involving lightning, thunder, strong winds and heavy rain.
Thunderstorm
What is a giant, whirling low pressure system in the tropics?
Hurricane
What do we call predictions of what the weather will be in the future?
Forecasts
What instrument measures relative humidity?
Hygrometer
What is an abrupt discharge of electricity through the air with a flash of light.
What are all rotating tropical low pressure systems called?
Tropical cyclone
What is a grouping of weather conditions on a map with numbers and symbols called?
Station model
What instrument measures visibility?
Transmissometer
What is caused from the heat of lightning?
Thunder
What is a region of low pressure a hurricane rotates around.
eye
What are curved lines that represent equal air pressure on a map called?
isobars
What instrument indicates wind direction?
Wind vane
What is a multiple - cell thunderstorm called
Squall line
What are the elevated water levels called that are formed when a hurricane pushes water ahead of it?
Storm surge
What are curved lines that connect equal temperatures on a weather map called?
Isotherms
What instrument measures air temperature?
thermometer
Cell
What causes hurricanes to form?
Warm ocean waters and a strong Coriolis effect
What does falling pressure indicate?
Bad weather is on its way.
What instrument measures the distance from the ground to the clouds?
What is a narrow funnel of powerful, rapidly whirling wind from cloud to ground called.
Tornado
What do we call a tropical cyclone with winds less than 39 mi/hr?
Tropical depression
Where should Forecasting instruments be placed?
Where the environment won't influence the outcome.
What instrument measures wind speeds near the Earth's surface?
Anemometer
What is a tornado that forms over water called
Waterspout
What do we call a tropical cyclone with winds between 39mi/hr and 74 mi/hr.?
Tropical storms
How do meteorologists show their findings?
By taking information from many weather stations.
What instrument is used to measure high altitude weather
Weather balloon
What is a whirling cloud starting on the ground, not connected to a cloud called.
What are long, narrow lines of thunderstorms called?
Rain bands
What is the best way to predict your local weather for the next few days?
Analyze the clouds, watch the winds and observe the conditions.
What instrument is used to measure air pressure?
Barometer
What scale is used to measure tornados?
The enhanced Fujita scale.
When does a tropical storm become a hurricane?
When the wind reaches 74 mi/hr.
What type of shelter protects weather instruments?
Stevenson screen
What instrument is used to measure precipitation?
Rain guage
What is the first sign a tornado is forming?
A wall cloud forms.
What are three dangers of a hurricane?
winds, storm surge and flooding
What are the five properties of air, meteorologists use to forecast weather.
Temperature, pressure, humidity, wind direction, wind speed.
What instrument uses radio waves to detect objects and measure distances?
Radar