Here is a breakdown showing what wind speeds will do when severe weather strikes.
30-44 miles an hour
Nothing to worry about with these wind speeds. Trees will sway, some lawn furniture might topple.
45-57 miles an hour
During this type of wind event, you will see large trees bend and dead or weak branches break off. Carports could be uplifted, and older or weak buildings could have some roof damage.
58-74 miles an hour
When wind speeds reach this level, shallow-rooted trees could push over. Semi-truck drivers have to be on guard because these wind speeds could cause a semi to overturn. Shingles from homes can also start peeling off.
75-89 miles an hour
This is when you can expect to see more damage occur from the wind. Trees will be uprooted and roofs might start partially peeling off. Weak structures, like barns, are also at risk of being severely damaged.
90+ miles an hour
Automobiles could be pushed off dry roads. Homes are likely to have some sort of damage. Most trees will be flattened.
To prevent as much damage as you can, here are some tips from the Insurance Institute for Business and Home Safety.