Re: wind/rain storm blew off outer cover
We get winds like that at times. straps work well. wind woudl have to move the entire hive if the strap is anchored to the lower box. Would have to move the earth if you anchor to that.
Hives don't have enough profile to self destruct in high winds like houses or roofs can. They could simply fall over is only strapped to the lower box. I don't keep straps on my hives but I have them if the weather calls for high winds. 90 MPH is common for us here. That will turn a hive top into a kite.
Significant Minority vs Insignificant Majority, 20% of causes produce 80% of the effects.