On The Map
Forecast It
Wind
What is it?
Explain It
100
Compare the temperature of point A with that of point B.
B is warmer because a warm front has come through.
100
Air Pressure............Falling Temperature.............70 & falling Humidity.................. 78% & rising What weather would you expect later than day?
Thunderstorms [The air pressure will be low, meaning precipitation. Falling temp. probably means a cold front. Rising humidity means rain.]
100
Which is warmer at night: land or water?
Water is warmer at night, causing a gentle land breeze every night.
100
Name three features of weather caused by the sun’s radiant energy.
List any 3 types of weather; all weather is caused by uneven heating of the sun.
100
Explain how rain occurs. Use the steps of the water cycle.
Evaporation occurs along with convection. Rising air condenses into clouds. When the clouds become heavy, precipitation occurs.
200
Compare the temperature of point C with that of point D.
C is colder because a cold front has come through.
200
Jessica observes a clear sky and a temperature reading of 35 degrees Celsius at 8:00 a.m. The barometer is steady at 31, with relative humidity of 61%. What is the most likely prediction for the day’s weather?
clear and hot [35 degrees Celsius is just below body temp. (36); 31 on the barometer mean very clear skies, along with low relative humidity.]
200
If there is a high pressure system and a low pressure system, where will the wind blow?
The wind will blow from H to L.
200
What is the temperature that the air around the glass has reached in the picture?
the dew point
200
What kind of air holds most moisture?
Warm, dry air holds the moist moisture.
300
Which direction is the front moving that brings rain and warm weather on today's weather map?
The only warm front is moving northward from point B to point A.
300
At 1:00 P.M., the air temperature was 78°F, and air pressure was 27.5 inches of mercury with heavy rain. By 4:00 P.M., the temperature had dropped to 62°F, and the pressure had risen to 28.5 inches of mercury. What kind of weather is likely for that evening?
clear skies and cool [Barometric pressure is rising.]
300
What three words on the study guide are used for wind?
atmospheric convection currents
300
What term describes a swelling wall of water that develops over the ocean because of low atmospheric pressure and heavy winds?
Storm Surge [A hurricane slows down over the land and drops the millions of tons of water that it carries.]
300
Why is their water on the outside of the glass in the picture?
Air around the glass has reached the dew point and can no longer hold onto its moisture.
400
Compare the temperature of point E with that of point F.
F is warmer because a warm front has come through.
400
Atmospheric pressure begins to fall slowly during the afternoon on a clear winter day. The pressure continues to drop overnight. About midnight the temperature drops to 23 degrees F. What kind of weather will most likely occur the next day?
Snow Storms [Falling barometric pressure means precipitation; the temperature is below freezing.]
400
In what direction is the wind blowing at point F?
SW or from the NW. [Remember, wind moves fro H pressure to L pressure.]
400
Graph the data from the table onto the line graph with your finger.
on graph
400
Why does a cold front produce lightning?
Cold air smashes into warm air and billions of molecules of warm air steal electrons from the cold air.
500
Compare weather for points G and J.
J: Rain; G: Clear.
500
Jordyn observes a clear sky and a temperature reading of 30 degrees Celsius at 8:00 a.m. The barometer is at 30 and falling, with relative humidity of 81% and rising. What is the most likely prediction for the day’s weather?
rain
500
Where is the wind blowing at point G on the map?
mostly eastward or from the west; [H to L]
500
What type of front probably came into town on what day?
A warm front probably moved into town on the 5th day, as evidenced by the unseasonably warm weather.
500
Explain how a thunderstorm occurs on a summer's day. It is not part of a cold front.
Rapid evaporation and convection goes upward in a vortex, stealing electrons from cooler, dryer air. The electrons shoot as lightning back to the cooler dryer air or to the ground.
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