Know it’s cold .2
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Transcript of Know it’s cold .2
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Know it’s cold
Preparing for the risks of cold water on the Columbia and Willamette Rivers
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Our water is cold
Brrrrrr…..It’s cold in there
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Snow fed rivers
Creative Commons by Flickr user uyen.tran http://flickr.com/photos/dopeshit/339228636/sizes/l/
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Our water is cold
• Less than 60°F most of the year
• Less than 50°F 4-6 months
…make for cold rivers
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Our water is cold
Whoops…and there are so many ways to go in
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Our water is cold
Your vesselcan sink
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Our water is cold
Your vesselcan capsize
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Our water is cold
Your can fall overboard
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Our water is cold
Your can be ejected at speed
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Our water is cold
Or you can simply misstep
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Our water is cold
Once you are in…things can go downhill very quickly
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Gasp reflex
Cold water causes a gasp on contact which often results in inhalation of water
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A little bit of inhaled water will set you to coughing which usually leads to more inhaled water…
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…and you can drown with only 5 ounces of water in your lungs
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Cold shock
In seconds to minutes you will begin to experience shock with very rapid breathing while your heart rate and blood pressure will increase.
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Cold shock
These factors reduce your physical and mental abilities making it very difficult to rescue yourself
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Swim failure
After as little as 3 minutes there is a loss of coordination in your limbs and you loose the ability to hold your breath
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Swim failure
You will be unable to maintain a body position that allows swimming
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Hypothermia
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25X
1X
Water is 25 times more effective than air at thermal transfer so your body cools very rapidly
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Hypothermia
At some point your body is no longer able to regulate your core temperature which, untreated will result in death
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Post rescue collapse
Even after rescue the effects of hypothermia can cause death, seek medical attention after any prolonged cold water exposure
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Our water is cold
PreventionWhat to do to protect yourself
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Know the risks
Understand the effects of cold water and how you may end up in it
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Boat smart
• Take a class• Choose an appropriate vessel for the conditions• Operate safely• Know your waterways• Be able to communicate (VHF, PEPIRB)• Know the weather• Stay aware• Don’t boat alone• …and
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LifeJacket
ALWAYSwearyour
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Prepare for the cold
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Our water is cold
Dry suit
What is he wearing?
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Our water is coldBecause we have learned the hard way that hypothermia protection
save lives
Why?
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Our water is coldWhen: Coast Guard requirements for USCG boat operations
Rescue and Survival Systems Manual COMDTINST M10470.10E
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Our water is cold Water temperature
under 60°F
Water & air temperature under 50°F
Anti-exposure coverall
Dry suit
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Be prepared