Rip Current Statistics Formation Reasons Types of Rip

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

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

True

Rip Current Statistics 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

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

True

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

True

Rip Currents T/F Rip currents account for over 80% of rescues performed by surf beach lifeguards.

True

Rip Current Formation Deceiving, it looks like a nice calm area:

An area of deeper water where waves don’t break

Rip Current Formation What is correct sequence of rip current formation? A. 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 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

Rip Current Formation _____ is proportional to amplitude or height squared

Wave energy

Rip Current Formation 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. During high surf conditions as the wave height and wave period increase.

Types of Rip Currents • 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?

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

What is a Permanent rip current?

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

What is a Fixed rip current?

Types of Rip Currents • 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?

Types of Rip Currents A long shore current may push swimmer into: a. b. c. d. Flash rip current Permanent rip current Fixed rip current All of the above

D. All of the above

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

True

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

False

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

False, they also occur in the Great Lakes.

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

True

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

False

Principal reasons people die in a rip current T/F Poor swimmers

True

Principal reasons people die in a rip current T/F Unaware of hazardous conditions

True (always check www. ripcurrents. noaa. gov before going to the beach or Great Lakes area)

Principal reasons people die in a rip current T/F Intoxicated

True

Principle reasons people die in a rip current T/F No flotation device

True

Principal reasons people die in a rip current T/F Panic and swim directly toward shore against the rip current, become exhausted and drown

True