chapter 7 (2)

Question 1

Thunderstorms

Answer 1

Thunderstorms are violent convective storms characterized by thunder and lighting

Question 2

what type of clouds do thunderstorms form in?

Answer 2

T-storms form in cumulonimbus clouds

Question 3

single cell thunderstorm phase 1

Answer 3

Cumulus – Cloud is composed entirely of updrafts. Precipitation forms and begins to fall.

Question 4

single cell thunderstorm phase 2

Answer 4

Mature – Composed of both updrafts and downdrafts. Produces heavy rain, hail, etc.

Question 5

single cell thunderstorm phase 3

Answer 5

Dissipating – Cold downdraft air cuts off energy. Composed entirely of downdrafts

Question 6

Multi-cell Thunderstorms

Answer 6

Adjacent T-storms can merge to form multi-cell T-storms
May form a squall line along a cold front.

Question 7

Supercell Thunderstorms

Answer 7

Supercell T-storms can for from a single-cell T-storms or they can be part of a line of thunderstorms.

Question 8

Lightning

Answer 8

a sudden discharge of electrical energy generated within the atmosphere.

Question 9

lighting strike

Answer 9

a leader reaches for the positivly charged earth. The two paths connect and lightning discharges

Question 10

how thunder?

Answer 10

The rapid expansion of the air creates a momentary vacuum.
Air rushes in to fill the vacuum and the collision of airstreams creates the sound of thunder.

Question 11

Hail

Answer 11

Form through deposition: vapor  ice
As long as they are caught in the updraft, and not too heavy, hailstones will continue to grow large.

Question 12

What is a tornado?

Answer 12

A rapidly rotating column of air in contact with the cloud and the ground

Question 13

In which type of thunderstorm cell does a tornado form?

Answer 13

Can develop in super-cell or multi-cell storms

Question 14

What is the difference between a wall cloud, a funnel cloud, and a tornado?

Answer 14

A wall cloud forms
A funnel cloud will originate from the wall cloud
It becomes a tornado once it touches the ground.

Question 15

What is the scale we use to measure tornadoes?

Answer 15

the Fujita Scale.
The strength to a tornado is determined by the damage it causes.

Question 16

When can a tornado form?

Answer 16

In the southeast there are two peaks: late spring and late fall.

Question 17

What is a tropical cyclone?

Answer 17

Tropical cyclones are low pressure systems which form in the tropical latitudes and over water.

Question 18

What is the progression from a tropical disturbance to a hurricane?

Answer 18

Tropical Disturbance
Tropical Depression
Tropical Storm
Hurricane

Question 19

What is the power source that drives a tropical cyclone/hurricane?

Answer 19

warm water

Question 20

Why does a tropical cyclone/hurricane dissipate when it hits land?

Answer 20

loss of access to warm water

Question 21

What are some of the main hazards associated with a tropical cyclone/hurricane?

Answer 21

wind
flooding
storm surge

Question 22

What is a typhoon?

Answer 22

Typhoons are tropical cyclones that develop in the western part of the Pacific ocean. They are the same as hurricanes.