Southern California Man Died After Jumping From Boat into Lake Tahoe Without Life Jacket

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tahoe keys, south Lake Tahoe,
Tahoe Keys, South Lake Tahoe, CA. Credit: Leading Estates

A 36-year-old Southern Californian man died after jumping from a boat on Lake Tahoe on Tuesday, police have confirmed.

The man was found at the Tahoe Keys Marina before 5 pm Tuesday. The man was boating with his family when he jumped into the lake without a life vest and got into trouble. Sadly, none of the family left on the boat knew how to operate it to get to him.

The family radioed in the incident, and when rescuers arrived, he was struggling to stay afloat. They were able to pull him out of the water and perform life-saving measures, but he was pronounced dead when they arrived on shore.

Officials see an increase in boating-related incidents on the lake since the beginning of the pandemic. 32 accidents were reported in 2020, 15 of which were fatal, and 12 of those deaths were due to drowning, reports the Reno Journal Gazette.

These tragic accidents can be easily avoided by always wearing a life jacket when on the water. The law states that only children under 12 must wear life jackets, but sadly this incident shows that they could save lives, whatever the age of the wearer.

Tahoe keys, south Lake Tahoe,
Tahoe Keys, South Lake Tahoe.

Why Cold Water is Dangerous


Sudden Drowning

With very few exceptions, immersion in cold water is immediately life-threatening for anyone not wearing thermal protection like a wetsuit or drysuit.

When cold water makes contact with your skin, cold shock causes an immediate loss of breathing control. The result is a very high risk of suddenly drowning – even if the water is calm and you know how to swim. The danger is even greater if the water is rough. Inability to coordinate your breathing with wave splash greatly increases the danger of inhaling water.

Gradual Drowning

Cold water drowning can happen immediately, but it can also take a fairly long time – a gruesome, drawn-out process in which small amounts of water are inhaled, over and over again, until your lungs become so waterlogged that you suffocate. Inhaling about five ounces (150 ml) of water is enough to cause drowning.

Heart Failure and Stroke

Because skin blood vessels constrict in response to sudden cooling, cold water immersion also causes an instantaneous and massive increase in heart rate and blood pressure.  In vulnerable individuals, this greatly increases the danger of heart failure and stroke.

All of these things happen long before hypothermia becomes an issue.

Stages of Immersion

To understand why some cold water deaths happen instantly, while others take hours, you need to be familiar with the four stages of cold water immersion, what happens during each of them, and why it happens.

Cold shock is over in a relatively short period of time, generally within five minutes. However, breathing problems may persist for a longer time while you’re in the water.

If you survive the cold shock phase, the threat shifts to physical incapacitation. It’s quite possible to lose the ability to use your hands in 60 seconds and use of your arms in minutes.

It takes at least 30 minutes for an average adult to become hypothermic, even in freezing water. A very large person with a lot of body fat can delay both physical incapacitation and hypothermia, sometimes for hours. Size does matter.

The final stage, circumrescue collapse, derives its name from the fact that the collapse can occur before, during, or after rescue.

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