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the amount of water vapor in the air
What is humidity
process of going from a solid to a liquid
What is melting
the process of going directly from a gas to a solid
What is deposition or sublimation
the most frequent type of cloud
What is a stratocumulus cloud
types of clouds seen during a cold front
What are cumulonimbus
the "lens-shaped" cloud
What is a lenticular cloud
the type of air mass that forms over snow & ice-covered portions of the Artic
What is Artic air mass
water vapor in air that is below the frost point condenses onto a surface that is below freezing
What is frost
type of fog to occur if a katabatic (downslope) wind pushes humid air from a warm lake over cold ground nearby
What is Advection Fog
boundary between a a warm and a cold air mass
What is a front
mid-level clouds blocking the sun, usually bringing steady precipitation
What are nimbostratus clouds
the process by which rain forms in very warm regions
What is collision-coalenscence process
the type of cloud resembling a "mare' tails"
What is a cirrus
occurs when a meteorological drought affects an area's groundwater, streams, lakes & reservoirs
What is a hydrological drought
cool, wet weather brought by this air mass
What is maritime polar
What is maritime polar air mass
snowflakes that fall to the ground through air whose temps remain below freezing
What is snow
layered balls of ice that form during strong thunderstorms that has temps before freezing at the top
What is hail
occurs when precipitation cannot supply enough moisture to the ground to support an area's crop
What is agricultural drought
a low that forms along a front
What is a frontal cyclone
the three major factors that deteremine the earth's weather
What is heat energy, water vapor in the atmosphere & uneven distribution of heat energy
white billowy clouds that resemble piles of cotton puffs, with flat bases; form when a moist body of rising air expands causing it to cool below the dew point
What are cumulus
raindrops formed usually from melted snowflakes through the Bergeron-Findeisen process that enter the a layer of freezing air near the ground & freeze into tiny balls before they hit the ground
What is sleet
based not on the physical water shortage but on the water shortage's effect on people
What is socioeconomic drought
combination of 3 air masses forming a Y-shaped front
What is a occluded front