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T/F Rip currents account for over 80% of rescues performe

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T/F Rip currents account for over 80% of rescues performed by surf beach lifeguards. ... Occurs with long shore (parallel to beach) current ... – PowerPoint PPT presentation

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Title: T/F Rip currents account for over 80% of rescues performe


1
Rip Current Statistics
Rip Current Formation
Types of Rip Currents
Rip Currents Safety
Principal Reasons People Die In A Rip Current
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Rip Current Statistics
  • T/F - Around 100 people die in rip currents each
    year in the United States

3
True
4
Rip Current Statistics
  • T/F Which state has the most rip current deaths
  • a. Florida
  • b. California
  • c. Carolinas
  • d. All of the above

5
A. Florida
6
Rip Current Statistics
  • T/F - Rip currents also kill people in the Great
    Lakes.

7
True
8
Rip Currents Statistics
  • T/ F What are the chances of drowning at a
    beach protected by lifeguards affiliated with the
    United States Lifesaving Association (USLA)?
  • One in 2 million
  • One in 18 million
  • One in 23 million
  • One in 50 million

9
B. One in 18 million
10
Rip Currents
  • Rip currents account for over ___ of rescues
    performed by surf beach lifeguards.
  • 20
  • 30
  • 70
  • 80

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D. 80
12
Rip Current Formation
Deceiving, it looks like a nice calm area
13
An area of deeper water where waves dont break
14
Rip Current Formation
  • What is the 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.

15
B. Waves break on sandbars, wave travels to the
beach, water runs off beach through a channel.
16
Rip Current Formation
  • The longer the period between waves
  • a. The more energy in the the waves.
  • b. The faster the waves move.
  • c. The more momentum the waves carry.
  • d. A and B
  • e. A,B, and C

17
E. a, b, and c
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Rip Current Formation
  • __________ is proportional to amplitude or height
    squared

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Wave energy
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Rip Current Formation
  • When do rip currents become most 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.

21
a. During high surf conditions as the wave
height and wave period increase.
22
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.

23
What is a Flash Rip Current?
24
Types of Rip Currents
  • This type of rip current develops along jetties,
    piers, and groins.

25
What is a Permanent rip current?
26
Types of Rip Currents
  • This type of rip current is dependent upon shape
    of coast, bays, points, reefs or sand bars.

27
What is a Fixed rip current?
28
Types of Rip Currents
  • This type of rip current occurs with long shore
    (parallel to beach) current.
  • Pushes rip away from original location and
    weakens it.

29
What is a Traveling rip current?
30
Types of Rip Currents
  • A long shore current may push swimmer into
  • Flash rip current
  • Permanent rip current
  • Fixed rip current
  • All of the above

31
D. All of the above
32
Rip Currents Safety
  • T/F Rip currents do not pull people under the
    waterthey pull people away from the shore.

33
True
34
Rip Currents Safety
  • T/F Undertow and riptides are the same as rip
    currents.

35
False
36
Rip Currents Safety
  • T/F Rip currents only occur on beaches near the
    ocean.

37
False, they also occur in the Great Lakes.
38
Rip Currents Safety
  • T/F Rip Currents can be very narrow or more
    than 50 yards wide.

39
True
40
Rip Currents Safety
  • T/F Rip currents do not affect strong
    swimmers/Olympic swimmers.

41
False
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Principal reasons people die in a rip current
  • T/F Poor swimmers

43
True
44
Principal reasons people die in a rip current
  • T/F Unaware of hazardous conditions

45
Truealways check with the lifeguard on duty and
learn about rip currents at www.ripcurrents.noaa.g
ov before going to the beach or Great Lakes area
46
Principal reasons people die in a rip current
  • T/F Intoxicated

47
True
48
Principle reasons people die in a rip current
  • T/F No flotation device

49
True
50
Principal reasons people die in a rip current
  • T/F Panic and swim directly toward shore
    against the rip current, become exhausted and
    drown

51
True
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