Name: ______________________
Regents Review #8: Weather
1. As you go up a mountain, altitude increases/decreases, temperature increases/decreases and pressure
increases/decreases.
2. Winds always blow from _____________ to _______________ pressure.
Use the arrow below as a starting point to answer/complete questions 3 – 6a.
Wind direction
3.
4.
5.
6.
Draw an “H” where the high pressure is located and an “L” where the low pressure is located.
Draw arrows to show where the air is rising and where it is sinking.
Label the cooler area and the warmer area
Draw a sun in the sunny area and a cloud in the area that is more likely to have precipitation.
a. Why is this area more likely to have precipitation? _________________________
_________________________________________________________________
7. Are we having high or low pressure today? How do you know? ____________________
_______________________________________________________________________
8. On the letters below, show how the air would be moving around the high pressure area and how they would
be moving around the low pressure area. This is a “bird’s eye” view.
H
L
9. Low pressure areas are zones of convergence/divergence, move clockwise/counterclockwise, and are
cyclones/anticyclones.
10. If a cloud or fog has formed, then the air temperature at that spot has reached the dew point and has
___________ relative humidity.
11. Fill in the chart and the blanks below.
Wet Bulb
Temperature
8ºC
22ºC
18ºC
negative 7ºC
Dry Bulb
Temperature
10ºC
30ºC
24ºC
negative 5ºC
Difference
Dew Point
Temperature
Relative
Humidity
a. Relative humidity: 76% Air temp: 10C Dewpoint: _______
b. Relative humidity: 49% Air temp: 30C Dewpoint: _______
12. Clouds form when warm/cold and dry/moist air rises/falls and cools to the dewpoint, causing
condensation/evaporation. Warm, air rises because it is more/less dense than cold, dry air.
13. Storms are high/low pressure systems and move from the __________ to the _________ across the United
States (give compass directions).
14. cP air masses have warm/cold and dry/moist air. mT air masses have warm/cold,and dry/moist air.
15. When isolines are _________________________________, it is windy.
16. Hurricanes feed on warm/cold water. They gain/lose power when the come onto land or meet cold air.
17. Tornadoes usually form when warm/cold and wet/dry air from Canada meets warm/cold and wet/dry air from
the Gulf of Mexico.
18. Tornadoes are larger/smaller and have faster/slower winds than hurricanes.
19. For the station model below, list the … (DON’T FORGET UNITS!)
Air temp: ________
Dewpoint: ________
Present weather: ________
Cloud cover: ________
Relative humidity: ________
Wind speed: ________
Wind direction: ________
A
B
20. Using the diagram above to answer the following:
a) Label numbers 1 and 2 in the diagram with the correct air mass SYMBOLS.
b) Letter A represents a ________ front. Letter B represents a ________ front.
c) In Binghamton, the temperature is likely to soon become warmer/cooler, and it
is likely to rain/be sunny.
21. This is a high/low pressure system,
and would therefore rotate
counterclockwise/clockwise.
22. Therefore the cold front is moving
toward point ________.
23. The entire storm system would
likely move toward the ________
Regents Review #8: Weather KEY
1. increases, decreases, decreases
2. high to low
The diagram below answers questions 3 – 6a.
6 a) The warm, moist air is rising.
7. Low if it is cloudy, high if it is clear.
8.
9. convergence, move counterclockwise, and are cyclones.
10. 100%
11.
Wet Bulb
Temperature
8ºC
22ºC
18ºC
negative 7ºC
Dry Bulb
Temperature
10ºC
30ºC
24ºC
negative 5ºC
Difference
2
8
6
2
Dew Point
Temperature
6ºC
18ºC
14ºC
neg 13ºC
a. Relative humidity: 76% Air temp: 10C Dewpoint: 6°C
b. Relative humidity: 49% Air temp: 30C Dewpoint: 18°C
12.
13.
14.
15.
16.
17.
18.
warm and moist air rises, condensation, less
low, west to the northeast
cold and dry air, warm and moist air.
close together
warm, lose
cold and dry, warm and wet
smaller, faster
Relative
Humidity
76%
49%
55%
48-54%
19.
Air temp: 31°C
Present weather: snow
Dewpoint: 31°C
Cloud cover: 100%
Relative humidity: 100%
Wind speed: 5 knots
Wind direction: north
A
B
cP
20.
a) (see picture)
b) cold,warm
c) cooler, rain.
21. low, counterclockwise
22. B.
23. northeast.
mT