earth science 20

what kind of violent storm has the greatest wind speed?

tornado

what type of storms are more common and powerful in the USA than any other county?

tornadoes

what are names assigned to ?

tropical cyclones and storms

Winds flowing from different directions that come together in a locality force air masses aloft. Cloud formation and storms often result . what is the meteorological term for this process?

Convergence

when in the life of a hurricane does its power and wind speed diminish?

when it moves over land or cold water

If the time between a lighting flash and the sound of thunder is 3 s, how far has the sound traveled?

1 km (0.6 mi)

what term is not associated with tornadoes?

Saffir-Simpson scale

ESSAY #3: What factors affect where a hurricane forms?

a hurricane must have water to form so an ocean or gulf is an necessary factor for them to be able to form.

what does the National Weather Service release daily?

a set of 4 synoptic maps

a hook appearing in the Doppler radar image of a severe storm is often the sign of what?

a tornado

what happens when a cold air mass meets a warm air mass

a type of precipitation will occur (thunderstorm etc)

What description accurately describes a Nor'easter?

a winter storm system that brings snow in from the Atlantic Ocean

what is a large body of air that has fairly uniform conditions?

air mass

when a warm air mass is trapped between two colliding colder air masses, what is formed?

an occluded front

which type of front involves two air masses where an existing air mass rises to make way for the incoming air mass?

cold

what should you do if you are hiking and a severe thunderstorm comes with lightening?

crouch down out in the open

what are less violent hurricanes that form in the middle lattitudes called?

extra tropical hurricane

what is the boundary between two air masses?

front

what is a blast of cold air that comes just before the rain of a thunderstorm?

gust front

What is not associated with a single cumulonimbus cloud?

hurricane

what are the four types of severe storms in this chapter?

hurricane, tornado, hailstorm, thunderstorm

what type of storm never forms over land?

hurricanes

what are lines on a weather map that connect areas of equal pressure and are used to predict wind speed + direction?

isobars

what can affect the path of a hurricane?

jet streams, trade winds, pressure systems (all)

what does the greatest danger come from in a severe thunderstorm?

lightning

what is the cloud-to-ground or cloud-to-cloud electrical discharge called?

lightning

how would a maritime polar air mass compare to a continental tropical air mass?

maritime-moist cold air tropical- dry warm air

The Atacama Desert in Chile exists because moisture as snow and rain on one side of the Andes Mountains, leaving little moisture in the air on the other side. What is this rain shadow effect caused by?

orographic lifting

what do most interactions among air masses cause?

precipitation

what are the greatest destructive features of a tornado?

rotating wind speed

what is a line of violent thunderstorms along a cold front?

squall line

the weather in an area stays virtually the same for an entire week. what kind of front probably exists between the nearby air masses?

stationary

what do you call the huge waves that are produced for out in the ocean and precede the arrival of a hurricane?

stormswell

what is a powerful, rotating storm likely to spawn a tornado?

supercell

ESSAY #1: How does the development and use of the Doppler radar and weather satellites demonstrate love for others?

the Doppler radar and satellites save many lives by predicting danger before it occurs so that people can be more prepared.

what part of the hurricane has the least pressure?

the eye, inside

what often has an anvil shaped top?

thunderhead

what are hurricanes called in the Western Pacific?

typhoons

what occurs when a warm air mass is replacing a cooler airmass?

warm front

what two factors does the enhanced fujita-pearson scale measure besides wind speed?

width and path

ESSAY #2: what are some of the dangers of winter storms?

winter storms can deprive humans of a source of warmth (heat) and electricity/power. They might even prevent one from having a sufficient amount of food and liquids to survive.