Study - Dec. 11 Quest Flashcards
What is a hurricane?
A large circular rotating storm that forms over warm ocean waters
Which way does a hurricane rotate?
Clockwise in Southern hemisphere; Counter clockwise in Northern hemisphere
What happens in the spiral rain bands of a hurricane?
“Squally” weather, tornadoes
What happens in the eye wall of a hurricane?
Strongest winds and rain
What happens in the eye of a hurricane?
Calm, blue sky
If a hurricane’s speed is in the range of 74-95 mph, what would it’s category be?
Category 1
If a hurricanes speed is in the range of 95-110 mph, what would it’s category be?
Category 2
If a hurricanes speed is in the range of 111-129 mph, what would it’s category be?
Category 3
If a hurricanes speed is in the range of 130-156 mph, what would it’s category be?
Category 4
If a hurricanes speed is greater than or equal to 157 mph, what category would it be in?
Category 5
What is a tornado?
A small scale violently rotating columns of air extending from the base of a thunderstorm
What are some environmental tornado conditions?
Warm unstable air mass with a vertical motion, thunderstorms, and directional wind shear - Winds in different directions and different heights; this provides spin to the atmosphere - creates supercell thunderstorms
What is a tornadoes structure?
Updrafts and downdrafts, stronger the updraft the more hail potential, and directional wind shear will cause the column to rotate
If a tornadoes speed was 65-85 mph, what would be it’s EF?
EF-0
If a tornadoes speed was 86-110 mph, what would be it’s EF?
EF-1
If a tornadoes speed was 111-135 mph, what would be it’s EF?
EF-2
If a tornadoes speed was 136-165 mph, what would be it’s EF?
EF-3
If a tornadoes speed was 166-200 mph, what would be it’s EF?
EF-4
If a tornadoes speed was 200+ mph, what would be it’s EF?
EF-5
What are the top 5 states for earthquakes to happen in?
Alaska, California, Nevada, Hawaii, Washington
How do earthquakes occur?
Pressure builds as tectonic plates converge, diverge, or slide past each other. When the pressure releases, an earthquake happens
Where do most earthquakes happen?
Pacific ocean or “Ring of Fire”
What scale is used to rate the severity of earthquakes?
The Ritcher Scale; 1-10; 1 is least severe; 10 is most severe
What are seismometers?
Seismometers measure the severity of earthquakes and are found underground
