Hurricanes fronts pressure Hurricanes2 General 100 100 100 100 100 200 200 200 200 200 300 300 300 300 300 400 400 400 400 400 500 500 500 500 500

what happened to wind speed in hurricane Katrina as the pressure dropped?

As pressured dropped, wind speed increased

What happens to a hurricane when it moves over land

weakens

What happens to a hurricane when it moves warm ocean water

Gains strength

What happens to a hurricane when it moves cool ocean water

weakens

Why does a hurricane not continue to gain strength as it moves northeast in the Atlantic Ocean

As the hurricane moves NE over the ocean the water becomes cooler & weakens the system

What type of weather change does a cold front bring?

Cooler temperatures & heavy rains

What type of weather change does a warm front bring?

Warmer temperatures & steady precipitation

How do you know the direction a front is moving?

The direction the teeth are facing

Draw a cold front symbol

Draw a warm front symbol

Draw a High pressure symbol

Draw a Low pressure symbol

What are the lines on a map that show areas of equal pressure and how are they related to wind speed?

Isobars – the closer together the stronger the winds

What type of weather is associated with a High (H) pressure system What type of weather is associated with a High (H) pressure system? Explain why

Clear & sunny skies

What type of weather is associated with a Low (L) pressure system What type of weather is associated with a Low (L) pressure system? Explain why

Clouds & precipitation

What is the force that causes a storm to become a hurricane?

Coriolis effect

Why doesn’t a hurricane form near the equator

No coriolis effect

Before a storm becomes a hurricane what is it called first

Tropical disturbance

Using the Saffir-Simpson scale, what category hurricane occurs when wind speeds reach 115 mph? Category 1- 74-95 mph Minimal Category 2- 96-110 mph Moderate Category 3- 111-130 mph Extensive Category 4- 131-155 mph Extreme Category 5- 156+ mph Catastrophic

Category 3

List the order a storm grows to become a hurricane in order from weakest to strongest.

Disturbance, Depression, Storm, Category 1-5

What is the difference between westerlies & easterlies (trade winds)

Westerlies move west to east & above 30 N latitude Easterlies move east to west & below 30 N latitude line

What are high altitudes bands of strong winds near the top of the troposphere at the northern and southern boundaries of the prevailing westerlies

Jet stream

What is the latitude line that divides the trade winds from the Westerlies

30N

Predict where the hurricane will most likely hit land and justify your answer using the following terms: dividing line, westerlies, & easterlies

Hurricanes are steered westerly by the trade winds below the 30N dividing line & above the line the hurricane is steered east by the westerlies winds

What instrument is used to measure wind speed?

anemometer