Rescue boat captain says Natalie Wood could have survived
November 18, 2011 1:22 PM
Rescue boat captain Roger Smith tells "48 Hours" about the night he was called by the Coast Guard to assist in the search for the missing actress.
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The United States Search and Rescue Task Force has a risk list for when hypothermia might set in if you are submersed in water:
Water temperature: 32 degrees or below
Time until exhaustion or unconsciousness: Less than 15 minutes
Expected time of survival in the water: Less than 15 to 45 minutes
Water temperature: 32.5 to 40 degrees
Time until exhaustion or unconsciousness: 15 to 30 minutes
Expected time of survival in the water: 30 to 90 minutes
Water temperature: 40 to 50 degrees
Time until exhaustion or unconsciousness: 30 to 60 minutes
Expected time of survival in the water: 1 to 3 hours
Water temperature: 50 to 60 degrees
Time until exhaustion or unconsciousness: 1 to 2 hours
Expected time of survival in the water: 1 to 6 hours
Water temperature: 60 to 70 degrees
Time until exhaustion or unconsciousness: 2 to 7 hours
Expected time of survival in the water: 2 to 40 hours
Water temperature: 70 to 80 degrees
Time until exhaustion or unconsciousness: 3 to 12 hours
Expected time of survival in the water: 3 hours to indefinite
People can survive indefinitely in water temperatures above 80 degrees.
People have survived longer or shorter periods of time than outlined on this list. These are estimates.