Weather Variables
Which topic is NOT a weather variable?
Doppler radar
air temperature
relative humidity
Doppler Radar
A ___________ air mass has the greatest effect on weather in Florida.
maritime polar
maritime tropical
continental tropical
maritime tropical
Air moves outward from a _____________.
stationary front
tropical air mass
high-pressure system
high-pressure system
Which type of preciptation does NOT reach Earth in a frozen form?
hail
rain
snow
rain
Hurricanes form when:
a cold front meets a warm front
updrafts in a thunderstorm rotate
warm, moist air rises over an ocean
warm, moist air rises over an ocean
Air pressure is measured with a ________.
barometer
anemometer
thermometer
barometer
A cold front brings __________ to an area.
severe storms
steady rain or snow
cloudy skies and light rain
severe storms
Temperature when the air is fully saturated with water vapor.
dew point
humidity
pressure
weather
dew point
How do weather fronts form?
Fronts form when two air masses meet.
How many life cycle stages are there of a thunderstorm?
3. Cumulus stage, Mature stage, Disspiation stage.
The amount of water vapor in the air relative to what that air could hold is _____________.
dew point
air pressure
relative humidity
relative humidity
What type of front occurs when warm air meets cold air and rises above it?
Warm Front
the atmospheric conditions, along with short-term changes, of a certain place and time.
dew point
humidity
pressure
weather
weather
Describe what happens in a cold front.
Cold air pushes under warm air. Warm air rises, cools, and condenses, forming clouds.
What tool do we use to measure wind speed?
anemometer
The pressure that a column of air exerts on the air or surface below it.
dew point
humidity
pressure
weather
air pressure
What type of front forms when cold air meets warm air and pushes underneath it?
Cold Front
The amount of water vapor in the air.
dew point
humidity
pressure
weather
humidity
It is summer. A warm front will be over your area at noon. Should you postpone your 2:00pm picnic? Why or why not?
Yes. In summer, warm fronts bring steady rain that lasts a few hours to a few days. The picnic would likely be rained out.
Explain briefly how computers are used to forecast weather.
Computers process large amounts of weather data using mathematical models. They use the data to predict future weather conditions.
Describe how rain is related to the water cycle.
Answers will vary.
Contrast low-pressure systems and high-pressure systems.
Air rises as it moves into a low pressure system, causing bad weather. Air sinks as it moves out of a high-pressure system, bringing clear skies anf fair weather.
Contrast surface weather reports and upper-air reports.
Surface weather reports describe conditions close to Earth's surface. These include temperature, wind speed and direction, air pressure, humidity, precipitation, and cloud cover. Upper-air reports describe conditions high above Earth's surface usinf radisonde. These include wind speed, temperature, and humidity.
Explain why a desert would not normally experience fog.
Deserts are very dry. THere is not enough water vapor to produce fog.
Relate air temperature to the type of precipitation that will fall.
If temperature is above 0 degrees Celcius it will fall as rain. If the temperature is below 0 degrees Celcius it will fall as sleet, snow, or hail.