How much wind is too much?

Here is a wind report for Barstow.

https://www.windfinder.com/forecast/barstow

I usually follow NOAA and when they put up a high wind warning, it's usually 45 or higher and that is enough to tip an empty over. ( I trained on curtain side trailers hauling glass out of KY for GM in baltimore one winter, and that bit of information was retained from that training long ago. Curtainside was a special type of trailer with a deck around your knees and european wheels that were very short)

I have fought winds up to 65 in the years since. Most of the time when loaded. Different types of trailers offer different challenges. I generally wait out high wind warnings when empty. I-70 western PA comes to mind when the cold fronts come through and the winds are focused by the valleys you have to cross. But generally 12 hours or less the front has passed and the weather improves.

On the west coast you have what is called a Santa Ana winds and Grapevine is the most dangerous place it will come off the eastern side and focused between the peaks ready to try to knock you over when you hit them Generally on the slopes that face the west side more than the slopes that are open to north or east.

My picture on the left under the forum name is actually from Grapevine southboard past the first california scales on the upgrade into the range. On the other side was expected to be high winds that day. I remember that day because the land around was either gold or silver from the sun and clouds. Ive almost been tipped over by the Santa Ana several times there.

 

They were made out of Volvo.
Those ninety degree brackets attaching the extender to the cab are made out of plastic, I think.