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Rip Current Statistics. Principal Reasons People Die In A Rip Current. Rip Current Formation. Types of Rip Currents. Rip Currents Safety. 100. 100. 100. 100. 100. 200. 200. 200. 200. 200. 300. 300. 300. 300. 300. 400. 400. 400. 400. 400. 500. 500. 500. 500.

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Presentation Transcript

Statistics

Principal Reasons

People Die In

A Rip Current

Rip Current

Formation

Types of

Rip Currents

Rip Currents

Safety

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T/F - Around 100 people die in rip currents each year U.S.

### True

T/F -Most victims are in the ocean waters of:

a. Florida

b. California

c. Carolinas

d. All of the above

### D. All of the above

T/F - Rip currents also kill people in the Great Lakes.

### True

T/ F The chance of drowning at a beach protected by lifeguards affiliated with USLA is 1 in 18 million.

### True

T/F More people die in rip currents than the deaths from hurricanes, lightning, flooding, and tornadoes.

### True

Deceiving, it looks like a nice calm area:

### An area of deeper water where waves don’t break

What is correct sequence of rip current formation?

• Wave travels to the beach, waves break on sandbars, water runs off beach through a channel.

B. Waves break on sandbars, wave travels to the beach, water runs off beach through a channel.

C. Water runs off beach through a channel, wave travels to the beach, waves break on sandbars.

D. None of the above.

### B. Waves break on sandbars, wave travels to the beach, water runs off beach through a channel.

Rip Current Formation water runs off beach through a channel.

The longer the period between waves:

a. The longer the waves.

b. The faster the waves move.

c. The more momentum the waves carry.

d. A and B

e. A,B, and C

### E. a, b, and c water runs off beach through a channel.

Rip Current Formation water runs off beach through a channel.

__________ is proportional to amplitude or height squared

### Wave energy water runs off beach through a channel.

Rip Current Formation water runs off beach through a channel.

When do rip currents become dangerous?

a. During high surf conditions as the wave height and wave period increase.

b. During low surf conditions as the wave height and wave period decrease.

c.During high surf conditions as the wave height and wave period decrease.

d. During low surf conditions as the wave height and wave period increase.

### a. water runs off beach through a channel.During high surf conditions as the wave height and wave period increase.

Types of Rip Currents water runs off beach through a channel.

• This type of rip current is short in duration (less than 10 minutes)

• Enhanced by large swells with more wave energy and volume.

• Unpredictable temporary conditions and variable locations.

### What is a Flash Rip Current? water runs off beach through a channel.

Types of Rip Currents water runs off beach through a channel.

• This type of rip current develops along jetties, piers, and groins.

### What is a Permanent rip current? water runs off beach through a channel.

Types of Rip Currents water runs off beach through a channel.

• This type of rip current is dependent upon shape of coast, bays, points, reefs or sand bars.

### What is a Fixed rip current? water runs off beach through a channel.

Types of Rip Currents water runs off beach through a channel.

• This type of rip current occurs with long shore (parallel to beach) current

• Occurs with long shore (parallel to beach)current

• Pushes rip away from original location and weakens it.

### What is a Traveling rip current? water runs off beach through a channel.

Types of Rip Currents water runs off beach through a channel.

A long shore current may push swimmer into:

• Flash rip current

• Permanent rip current

• Fixed rip current

• All of the above

### D. All of the above water runs off beach through a channel.

Rip Currents Safety water runs off beach through a channel.

T/F Rip currents do not pull people under the water—they pull people away from the shore.

### True water runs off beach through a channel.

Rip Currents Safety water runs off beach through a channel.

T/F Undertow and riptides are the same as rip currents.

### False water runs off beach through a channel.

Rip Currents Safety water runs off beach through a channel.

T/F Rip currents only occur on beaches near the ocean.

### False, they also occur in the Great Lakes. water runs off beach through a channel.

Rip Currents Safety water runs off beach through a channel.

T/F Rip Currents can be very narrow or more than 50 yards wide.

### True water runs off beach through a channel.

Rip Currents Safety water runs off beach through a channel.

T/F Rip currents do not affect strong swimmers/Olympic swimmers.

### False water runs off beach through a channel.

Principal reasons people die in a rip current water runs off beach through a channel.

T/F Poor swimmers

### True water runs off beach through a channel.

Principal reasons people die in a rip current water runs off beach through a channel.

T/F Unaware of hazardous conditions

### True water runs off beach through a channel.(always check www.ripcurrents.noaa.gov before going to the beach or Great Lakes area)

Principal reasons people die in a rip current water runs off beach through a channel.

T/F Intoxicated

### True water runs off beach through a channel.

Principle reasons people die in a rip current water runs off beach through a channel.

T/F No flotation device

### True water runs off beach through a channel.

Principal reasons people die in a rip current water runs off beach through a channel.

T/F Panic and swim directly toward shore against the rip current, become exhausted and drown