Weather Systems

Question 0

The ______is the driving force behind the weather. The Earth’s rotation causes the air to begin turning as it flows along the ground or high in the air. This is known as the __________ effect.

Answer 0

Sun, Coriolis

Question 1

_____________ is water rising in the atmosphere.
_____________ is the changing of water from a vapor to a liquid.
_____________ is any form of water falling from the sky.

Answer 1

Evaporation, condensation, precipitation.

Question 2

Air flows _____________ around a high pressure system in the northern hemisphere and _________________ around a low pressure system.

Answer 2

Clockwise, counter-clockwise

Question 3

A ___________ is a boundary between two air masses.

Answer 3

front

Question 4

The weather symbol for a cold front is a blue ___________ with ______ pointing the direction the cold air is moving. Summer cold fronts are more accurately called ________ fronts.

Answer 4

Line, triangles, dry

Question 5

The weather symbol for a warm front is a ____________ line with ________.

Answer 5

red, red half circles

Question 6

An___________ front is caused by a cold front overtaking a warm front. The symbol for this front is a ____________ line with ________ and _________ on the same side.

Answer 6

occluded, purple, triangles, half circles.

Question 7

The symbols for a stationary front is a line with ____________ on one side and ____________ on the other.

Answer 7

blue triangles, red half circles

Question 8

An _____________ barometer reads the atmospheric pressure differences and changes. Sea level is ______ pounds of pressure per square inch, ___________ inches of mercury or ____________ Millibars.

Answer 8

Aneroid, 14.7,29.92,1013.25

Question 9

The 3 main cloud types are:

Answer 9

Cirrus: Highest and signal a change in the weather
Cumulus: heaped and billowy, cotton ball appearance, signal good weather nut can produce rain and T-storms
Stratus: low lying dull colored associated with drizzle.

Question 10

_____________ clouds are anvil shaped and associated with gusty winds and lightening.

Answer 10

Cumulonimbus

Question 11

___________ is the temperature at which the air can no longer hold moisture and begins to unfold usually in fog.

Answer 11

Dew Point

Question 12

Veering winds change in a ____________ direction.

Answer 12

clockwise

ex. a wind changing from the north to from the ease would be veering.

Question 13

_________________ winds change in a counter clockwise direction.

Answer 13

Backing

ex. from south to from east.

Question 14

Apparent wind is shown on the ________________ of a moving vessel. Apparent wind speed is measured by an ____________.

Answer 14

wind vane, anemometer

Question 15

The wind pattern that generally influences movement of frontal systems over North America is the ________________.

Answer 15

Prevailing westerlies

Question 16

___________________ fog is created by warm moist air flowing over cold coastal water.

Answer 16

Advection

Advection refers to horizontal air movements.