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82 Cards in this Set
- Front
- Back
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What is it called when the temperature at which saturation is reached? |
Dew point |
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What is a cloud layer that forms very close to the ground surface? |
Fog |
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What time of day typically has the highest relative humidity? |
At night or in the early morning |
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As air to sand down a mountain it's temperature will what? |
Increase/Get warmer |
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Air force to move over a mountain and cooled to its dewpoint temperature is considered what type of lifting? |
Orographic lifting |
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The ITCZ is always located in the vicinity of this important line of latitude |
The equator |
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What does ITCZE stand for? |
The inter tropical convergence zone |
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What is the intertropical convergence zone? |
A belt of low pressure which circles the earth generally near the equator where the trade winds of northern and southern hemisphere's come together. A lot of storms in this area |
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What are the winds of commerce? |
The trade winds |
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The northern wind is blowing towards___ |
The south |
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If you're standing at the beach with the ocean to your west. The wind is traveling to the east. The wind is called___ |
Onshore wind |
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The "snow eater" winds of the Rocky Mountains |
Chinook wind |
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What is a cool and moist air mass called? |
Maritime polar air mass |
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What type of air mass forms over the ice fields of northern Canada? |
Continental polar air mass |
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What air mass would Orignover the Sahara desert? |
A continental tropical air mass |
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The collision of these two air masses causes severe thunder storms in the United States |
When continental polar and maritime tropical air masses converge |
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After a cold front passes the barometric pressure will gradually do what? |
Rise |
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What type of cloud is associated with a severe thunderstorm? |
A cumulonimbus cloud |
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What is the last of the three stages of a thunderstorm? |
Dissipating |
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What is the energy source for a hurricane? |
Warm seawater |
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What part of the hurricane is characterized by scattered high clouds and light winds? |
The eye of a hurricane |
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Hail becomes larger when it collides with what? |
Super cooled water droplets |
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Dust pollen and salt in the atmosphere that provides a surface for water to condense upon it's called what? |
Condensation nuclei |
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What is the prefix for mid level clouds? |
Alto |
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What causes higher air pressure at lower elevations? |
Gravity |
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What type of cloud cannot have a prefix attached to it? |
Cirrus clouds |
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What fog develops when warm, moist air moves across a cold surface |
Advection fog |
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When a cold front approaches, air pressure will____due to the displacement and uplift of___air |
Decrease and warm |
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Relative humidity = content over___ |
Capacity |
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The principal process for raindrop formation in the warm cloud is called___and Coalescence |
Collision |
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Cooling of a surface overnight that chills the layer of air directly above that surface is called what fog? |
Radiation fog |
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Cold air moving over a warmer lake surface will result in what fog? |
Evaporation fog |
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At what level of altitude does rising air reach the dewpoint temperature? |
Lifting condensation level |
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Winds in a low pressure system in the northern hemisphere spiral in which direction? |
Counter clockwise |
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The descending air of the ITC easy that causes the worlds major deserts is what? What is the name of the seasonal reversal of winds that causes wet weather in India |
The subtropical high |
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What is the name of the seasonal reversal of the winds that caused wet weather in India? |
Monsoon |
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If you were at 40° North latitude and you wanted the predominant wind blowing in your face you would face which direction? |
West |
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The part of the global atmospheric circulation that is steered by the jetstream is? |
Subpolar low |
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large bodies of air that acquire temperature and moisture characteristics from the underlying surface |
Air masses |
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What is the beginning phase of a thunderstorm? |
Cumulous |
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Water that stays in its liquid form even though the temperatures are below freezing |
Supercooled water |
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Downwind of large mountain ranges there is a dry zone called the___ ___area |
Rain shadow area |
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Rising air, warm by the release of latent heat calls at a rate called the what? |
Saturated adiabatic lapse rate |
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El Nino received its name because of its Association with what holiday? |
Christmas |
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Texas, Oklahoma, and Kansas get the most of their tornadoes during the season |
Spring |
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What ocean has the most hurricanes or typhoons? |
The Pacific Ocean |
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Tornadoes are ranked in terms of wind speed and related property damage by using the___scale |
Fujita scale |
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The 1–5 scale rating hurricane intensity |
Safir Simpson scale |
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The onshore breeze typically occurs at what time of day? |
In the afternoon |
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An instrument used to measure air pressure? |
A barometer |
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___ ___traditionally caused the greatest loss of life with hurricanes |
A storm surge |
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Rain cooled downdrafts accompany convectional updrafts in this stage of a thunderstorm |
The mature stage |
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List the three stages of a thunderstorm |
1.cumulous 2. Mature stage 3. Dissipation stage |
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A hurricane is called a___if it occurs in the Indian Ocean |
Cyclone |
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The average directional movement of a cold front is? |
Southwest to Northwest |
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What is water in it's gas form? |
Vapor |
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When vapor turns into liquid it forms beads of___ |
Condensation |
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Which air mass contains the least amount of water vapor |
Continental polar air mass |
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The melting of ice and the evaporation of water___heat |
Absorbs |
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The relative humidity of air when it reaches the LCL is? |
100% relative humidity |
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LCL stands for? |
The lifted condensation level |
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Rising air creates___pressure |
Low pressure |
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Pressure gradient force causes? |
Wind |
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An extremely fast moving part of the westerlies that steers low pressure systems is? |
The jet stream |
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A local wind system that flows from the land to the ocean at night is? |
Offshore winds |
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A breeze that flows from the valleys to the mountains during a warm summer day is? |
A valley breeze |
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___ ___have winds between 39 and 73 mph and are given names by NOAA |
Tropical storms |
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When liquid water changes into vapor the process is called what? |
Evaporation |
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Which air mass contains the most water vapor? |
Maritime tropical air mass |
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What is the prefix for a cloud that produces precipitation? |
A Nimbo cloud |
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A puffy, cotton ball looking mid-level cloud is? |
Altocumulus cloud |
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What are blanket like clouds that cover a large area? |
Stratus clouds |
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What are thin, high wispy clouds composed almost entirely of ice crystals? |
Cirrus clouds |
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What fog develops when air is forced up a topographical barrier and cools to its dewpoint? |
Upslope fog |
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What front would most likely produce nimbostratus clouds? |
A warm front |
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During an El Niño what US state is more at risk of getting hit by hurricane |
Hawaii |
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When the tradewinds merge together it forms the___ |
Intertropical convergence zone or ITCZ |
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What state gets the most hurricanes? |
Florida |
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What front moves the fastest? |
A cold front |
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Warm water off the West Coast of this continent causes El Niño |
South America |
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___ and___are the major characteristics of air masses |
Temperature and humidity |
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The CT air mass moves over the Gulf of California. This will___the relative humidity of the air, while___ the dewpoint |
Increase and increase |
