Question on Survival If you fell in ice water in normal clothing, how long do you think you would last before you became hypothermic?
Hypothermia – professionals Estimates from 480 medical, paramedical and SAR personnel on how long a person can survive in ice water % minutes
Hypothermia – REALITY An hour or more may be required for a person to become unconscious due to hypothermia IF a lifejacket or some other device eliminates the need for vigorous exercise and the airway is kept clear to keep from drowning. Another hour before the heart stops.
… Because accidents like these are happening all the time…it’s your job to be ready for them
Some drowning stats 2006 U.S. Drownings In water under 49 F / more than 50% of all boating accidents had a fatality U.K. / Dr. M. Tipton 55% drowned within 10 feet of safety Lifesaving Study / Canada 2000 – 2004 Boaters 60% drowned in water under 50 F 38 % in water 50 - 70 C 43 % were less than 6 feet from safety
Hypothermia 1 - 10 – 1 Even in ice cold water (32 degrees F), an hour or more may be required for a person to become unconscious due to hypothermia IF a lifejacket or some other device eliminates the need for vigorous exercise to keep from drowning.
Hypothermia Once a victim is unconscious, another hour or more may be required for the heart to stop if the head is kept above water (lifejacket worn) and the water is calm enough for waves not to wash over the mouth.
Approximately 20 % of severely hypothermic victims die during or shortly after rescue
In WW 11, German Air Sea Rescue Services noted how aircrew who had ditched in the channel and were conscious and even aided in their own rescue became unconscious and died shortly after rescue.
Sixteen Danish fishermen were in the North Sea for 2-3 hours before being rescued. They walked across the deck of the rescue vessel and went down into the galley to warm up. Each and everyone collapsed and died in the galley.
In general previously healthy persons should not die from a cold water immersion or hypothermic incident if they have been rescued, recovered and re-warmed appropriately and properly and in a timely manner.
An intense winter storm tracked across the Midwest on December 8 and 9. This storm produced widespread blizzard conditions. As the low tracked into the Great Lakes, a strong cold front swept through the Ohio Valley, dropping temperatures and bringing very gusty winds to much of the region. Highest Measured Wind Gusts 61 mph
The lowest recorded core temperature in a surviving adult is 60.8 degrees.
In 1994, a two-year-old girl in Saskatchewan wandered out of her house into a minus-40 night. She was found near her doorstep the next morning, limbs frozen solid, her core temperature 57 degrees. She lived.