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Question 1

1 / 1 pts

Which stage of thunderstorm development is dominated by downdrafts?

dissipating

lightning

downdrafting

stratus

cumulus

Question 2

1 / 1 pts

How ‘bout this oldie but a goodie:  Complete this statement:  “Air rises, ______, _______, forms ________.”

sinks, advects, rain

convection, cools, bacon

cools, condenses, clouds

Question 3

1 / 1 pts

The slope of a cold front is steeper than that of a warm front. 

True

False

Question 4

1 / 1 pts

As a warm front passes, temperature will increase.

True

False

Question 5

1 / 1 pts

Warm fronts are shown on a map as a line with ______.

triangles

semi-circles

triangles and semi-circles

circles

squares

Question 6

1 / 1 pts

Cold fronts are shown on a map as a line with ______.

circles

semi-circles

triangles and semi-circles

triangles

squares

Question 7

1 / 1 pts

In the southwest US when cT and mT air masses collide it common produces ________.

occluded front

stationary front

cirrus front

dry line

normal front

Question 8

1 / 1 pts

Humid air is _______ than dry air of the same temperature.

less dense

same density

less humid

more dense

Question 9

1 / 1 pts

Nor'easters are a type of ________.

mid-latitude cyclone

hurricane

cloud

front

tornado

Question 10

1 / 1 pts

Air density at the surface is largely controlled by ______ and ______.

cloud type; wind direction

temperature; humidity

dew point; relative humidity

pressure; height

Question 1

1 / 1 pts

Which stage of thunderstorm development is dominated by downdrafts?

lightning

dissipating

stratus

downdrafting

cumulus

Question 2

1 / 1 pts

Microbursts are the result of ____________. 

none of these

too much micro

weak north trending lightning

strong updrafts

strong horizontal pressure gradient

Question 3

1 / 1 pts

The basic cause of lightning is _______.

strong horizontal winds

extremely high cloud temperatures

thunders

a large charge separation.

Thor, God of Thunder

Question 4

1 / 1 pts

For a thunderstorm to be classified as severe the winds must be ________ or have hail _______.

>100 kts; >4 in

wicked fast; wicked huge

>60 kts; >5 in

>50 kts; >1 in

>75 kts; <1 in

Question 5

1 / 1 pts

Most tornadoes move to the northeast. 

True

False

Question 6

1 / 1 pts

The Enhanced Fujita Scale is applied to _______. 

tornadoes

lightning

hurricanes

hail

none of these

Question 7

1 / 1 pts

EF-5 hurricanes are the most common but do the least amount of damage.

True

False

Question 8

1 / 1 pts

What does the term mesocyclone refer to in reference to a tornado? 

a very large tornado

a false alram tornado

a high altitude tornado

a multiple vortex tornado

the area of rotation in a thunderstorm

Question 9

1 / 1 pts

Most lightning is cloud-ground.

True

False

Question 10

1 / 1 pts

What was so unusual about the 2011 tornado season?

most of the tornadoes occurred in the upper plain states

there were more early morning tornadoes

it was the fewest tornadoes ever recorded

the spring had a record number of tornadoes and fatalities