Hypothermia Chart

Hypothermia Chart
Water Temp (degrees) Hypothermia Index Exhaustion or Unconciousness Expected Survival Time
20 to 32 degrees EXTREME Under 7 minutes Under 7-22 minutes
32.5 degrees EXTREME Under 15 minutes Under 15-45 minutes
32.5 to 40 degrees SEVERE 15 to 30 minutes 30 to 90 minutes
40 to 50 degrees HIGH 30 to 60 minutes 1 to 3 hours
50 to 60 degrees CAUTION 1 to 2 hours 1 to 6 hours
60 to 70 degrees MEDIUM 2 to 7 hours 2 to 40 hours
70 to 80 degrees LOW 3 to 12 hours 3 hours to indefinite
Over 80 degrees NONE Indefinite Indefinite

 The range 20-32 degrees is not on any official chart as most government sources do not track water temperatures that can reach the very cold conditions that Great Salt Lake can reach.