I am not sure how leaving the shore power hooked up but any additional stress on anything, assuming you have a cord of proper length.
I am headed down friday to storm proof the boat...
1. Double up lines. Not redundant, but different cleats to different pilings
2. Put Helm seats in cabin
3. Put Tv, dvd, generator, and radio in the car
4. Tape plastic over cabin windows, bow hatch, and cabin door to keep driven rain out
5. Remove all covers, canvas, and bimini (including poles)
6. Remove Tv, and VHF antennas
7. Duct tape all cockpit deck hatches
8. Seal all vents (fuel/water/bilge)
9. Cover/Seal dash
10. Triple check all lines
11. Say a few prayers
12. Hitch the ski up and head home...
Did I forget anything?
-Shane