Tree Leaning After a Storm with Exposed Roots — Delft, Zuid-Holland

When a large tree suddenly leans to one side after a windstorm or heavy rain, and a section of the root plate is lifted out of the ground, the tree may be on the verge of falling. This condition — called partial windthrow — is especially dangerous because the tree can topple without warning hours or even days after the storm passes. The exposed root plate usually indicates that the anchoring roots on the windward side have snapped or pulled free from saturated soil. Trees with shallow root systems, root rot, or those growing in compacted urban soil are most vulnerable. A certified arborist or tree service crew will assess the lean angle, root damage, and canopy weight to determine whether the tree can be cabled and staked upright or must be safely removed in sections before it falls on a structure, power line, or person.