If you're backpacking you could always buy a modern high wind resistance tent for 3 people to save weight. However, venation is a tough one.Canvas tents are heavy around 60 pounds.
That reminds me of the Coleman Oasis I had years ago. There was one trip in particular that we thought was going to turn us into a Wizard of Oz remake. Woke up the next morning with water literally running under the tent - with no groundsheet - and we were high (back then probably literally) and dry. Lost that tent to the maintenance people at the apartment complex where we were living. Dumbasses stole the tent from the "security locker" and left the poles. Wish I had noticed that the hinges on the doors were simply screwed to the outside of the lockers. Could've easily remedied that with some security bolts of my own.I have an old canvas wall tent that is 40 years old. It has been through some hellaceous storms over the years with no problems. Canvas tents are heavy around 60 pounds. When they get wet they weight even more. In a blizzard they freeze up and get heavier. Assuming they are not rotten and staked properly they are like a fortress in a storm.
I can't say whether or not they'd survive 50 mph winds, but the flexing in "Flexbow" does very well to stand up to some pretty nasty wind. I was on a trip with sideways rain in my 10x10 and it held up just fine. The side poles are a good bit thicker than conduit, almost EMT thick.The Kodiak above looks good but needs a heavier frame for high winds.
That's just one model Ppine. Most won't survive winds. Any tent needs lots of guys, aluminum poles and deep stakes to survive wind.If Grandpa says it is so I believe him.