a measure of the atmospheres tendency to discourage or deter vertical motion, and vertical motion is directly correlated to different types of weather systems and severity

a boundary that separates a moist air mass from a dry air mass

relatively narrow bands of strong wind in the upper levels of the atmosphere

a thunderstorm is a storm with.....

a thunderstorm is formed by a....

a reference to a relatively weak thunderstorm

storms produce hail, strong winds, brief tornadoes and or flooding....

long lived and highly organized storm feeding off an updraft that is tilted and rotating

high altitude, thin, and wispy cloud streaks made of ice crystals

small, flaky, and white high altitude cumulus patches

thin transparent , high altitude layer capable of producing a halo

middle altitude cumulus clouds arranged in groups or rolls

featureless, gray layer cloud capable of masking the sun

dark and featureless layer cloud responsible for rain and snow

dark based storm cloud capable of impressive vertical growth

low altitude, fluffy cotton ball like cloud

gray, dark low altitude cloud

thicker, dark gray, and somewhat conjoined heaps of cloud

pellets of frozen rain which fall in showers from cumulonimbus clouds

atmospheric water vapor frozen in to ice crystals and falling in light white flakes or lying on the ground as a white layer

snow is generated high up in the atmosphere, then falls through a warm layer above the ground, causing the snow to melt in to liquid water

relief rainfall occurs when air has been blown over the sea and is then forced up over an area of high land

frontal rainfall occurs when warm air is forced to rise over cold air

convectional rainfall occurs mostly in tropics where it is hot

a geological phenomenon in which water-laden masses of soil and fragmented rock rush down mountainsides, funnel in to stream channels, en train objects in their paths, and form thick, muddy deposits on valley floors

occur when a large amount of water causes the rapid erosion of soil on a steep slope. rapid snow melt at the top of a mountain or a period of intense rainfall can trigger a as the great volume of water mixes with soil and causes ti to liquefy and move downhill

a sudden local flood, typically due to heavy rain

occurs when water flows in to an urban region faster than it can be absorbed in to the soil or moved to and stored in a lake or reservoir. it can be caused by many types of flooding

pulses of rainfall and or snow melt move downstream.. this causes water to over top the channels banks and spill on to the neighboring floodplain.

a narrow band of winds and storms associated with a cold front

wind that comes out of a thunderstorm

a drainage wind, a wind that carries high density air from a higher elevation down a slope under the force of gravity

downward current of air

a strong downward current of air from a cumulonimbus cloud, usually associated with intense rain or a thunderstorm.

a boundary that separates a cold downdraft of a thunderstorm from warm, humid surface air. Its passage at the surface resembles a cold front.

a localized column of sinking air (downdraft) within a thunderstorm and is usually less than or equal to 2.5 miles in diameter. Micro bursts can cause extensive damage at the surface, and in some instances, can be life-threatening. There are two primary types of micro bursts: 1) wet micro bursts and 2) dry micro bursts. Wet micro bursts are accompanied by significant precipitation and are common in the Southeast during the summer months.

true or false

A macroburst is an outward burst of strong winds at or near the surface with horizontal dimensions larger than 4 km (2.5 mi) and occurs when a strong downdraft reaches the surface. To visualize this process, imagine the way water comes out of a faucet and hits the bottom of a sink.

a line of intense, widespread, and fast-moving windstorms and sometimes thunderstorms that moves across a great distance and is characterized by damaging winds

Sand and dust storms usually occur when strong winds lift large amounts of sand and dust from bare, dry soils into the atmosphere. Over the last decade, scientists have come to realize the impacts on climate, human health, the environment and many socio-econimic sectors. WMO Members are at the vanguard in evaluating these impacts and developing products to guide preparedness, adaptation and mitigation policies.

true or false