If you have concrete blocks or bricks, you could surround them with those.
Duane

I used a ladder laid across two old pieces of wood, and stuffed them all in between the rungs real tight. So far, they've stayed put. I also set theis up right next to my shed in an attempt to provide some shelter. I did find one container open htis morning, but it is intact, so I just retaped it.

There are some wind ideas here in this thread from Dec...I think you would be happier securing them in some way and not weighing down individual pots - for reasons that include drainage, root space, dividing to transplant, more....

Here is a link that might be useful: Wind and stable containers

Water equals weight! Water them well to increase their weight and they will be less likely to tip over or blow away in a strong breeze. You can also group your containers together in milk-crates. If you're going to have a particularly bad storm then take your containers and place them in unheated storage, like a shed, garage or the trunk of your car. As soon as the storm passes you can take them out of that storage.

tie the handles together. I agree, keep them watered.

I'm just glad that we are finally getting snow!

I put my containers into milk crates. Four of the gallon size milk jugs fit into one crate. The crates allow exposure to the elements while providing good drainage and keeps things from getting tipped over or blown away. It has worked well for me so far.