According to the national weather service a wind gust is a sudden brief increase in wind speed that peak at least 18 miles per hour and have lulls that vary by at least 10 miles per hour.
Sliding through the door and a gust of wind.
A heavy duty wind chain keeps the screen door from opening past the length of the door closer so it prevents this type of accident.
Increase the velocity of air crossing a gap say between a window frame.
Water intrusion in some sliding glass doors can occur with wind driven rains at speeds as low as 22 miles per hour.
Required tools for this project.
Afternoon rainstorms or even tropical disturbances hundreds of miles away can cause gusts or sustained high winds.
Because they open outward storm doors are installed with a hydraulic or pneumatic door closer.
Your house has vents on the roof.
This device keeps the door from opening too far should it catch a gust of wind and it closes the door automatically.
Attach one end of the chain to the door and the other to the top jamb photo 3.
Then connect the new closer to the bracket photo 4.
It can even affect your plumbing.
A sliding glass patio door correctly installed and maintained will mitigate most of these issues but annual preventative maintenance with an elastomeric sealant around the perimeter is a must.
A gust of wind could have been channeled down the fireplace if the flue is open.
Heavy glass doors may have two door closers one at the top the other at the bottom.
A gust usually lasts less than 20 seconds.
When the wind is howling outside the water in my toilet is not still but waving back and forth.
Eri s answer is real good too.