Reasons to inspect trees: storm damage
This mature Gean (Wild Cherry; Prunus avium) was on the receiving end of 103 mph winds in January 2012. It had some structural weaknesses that finally failed with the extreme weather.
Luckily there was no damage to either of the adjacent houses. Trees are much more likely to fail unpredictably under such extreme weather events. However symptoms of predictable failure can be found by a competent arboriculturist, who can then recommend actions to reduce the risk of harm.
“The tree was in private ownership and had not been inspected for many years. It clearly had weak compression forks which are one of major causes of structural failure of trees. Had it been inspected, the tree could have then been braced to prevent it failing in such a spectacular manner.”