GSL Slip Renters and Marina Users The surface temperatures of Great Salt Lake is now about 29 degrees and intermittent ice has begun to form both in the marina and on the lake. After this next storm passes over the marina we could see more significant ice starting next week. Listed below is a Hypothermia chart. Use extreme caution when boating on the Great Salt Lake Thank you Dave Shearer Harbormaster Great Salt Lake Marina Hypothermia Chart Water Temp Exhaustion or Unconsciousness Expected Survival Time 32.5° Under 15 minutes Under 15-45 minutes 32.5° - 40° 15 to 30 minutes 30 to 90 minutes 40° - 50° 30 to 60 minutes 1 to 3 hours 50° - 60° 1 to 2 hours 1 to 6 hours 60° - 70° 2 to 7 hours 2 to 40 hours 70° - 80° 3 to 12 hours 3 hours to indefinite Over 80° Indefinite Indefinite Warning: Great Salt Lake is currently below 32°. Survival time is shorter than listed on the above chart.