Summer storms in Pennsylvania and New Jersey can bring strong winds, heavy rain, and saturated soil — all of which put stress on trees. While healthy trees can often withstand severe weather, weakened or structurally compromised trees are much more likely to fail.
The challenge for many homeowners is that tree problems are not always obvious until damage happens. A tree may still have leaves and appear healthy while hiding serious structural issues inside.
Knowing what warning signs to watch for can help you reduce the risk of property damage, injuries, and emergency removals before storm season peaks.
Common Warning Signs a Tree Could Fail
Some signs of tree instability are easy to spot, while others require a trained eye. Here are some of the most common indicators that a tree may be at risk during a storm.
Large Dead or Hanging Limbs
Dead branches are one of the biggest storm hazards. They become brittle over time and can snap during wind or heavy rain.
Warning signs include:
- Branches without leaves during the growing season
- Bark falling off limbs
- Large limbs hanging over roofs, driveways, or walkways
- Cracks where branches connect to the trunk
Even healthy-looking trees can contain deadwood high in the canopy that homeowners cannot easily see from the ground.
Cracks or Splits in the Trunk
Visible cracks in the trunk or major limbs may indicate structural weakness.
Pay attention to:
- Vertical cracks running along the trunk
- Deep splits where multiple trunks meet
- Cavities or hollow areas
- Areas where bark is separating
These defects can worsen quickly under storm pressure, especially when wind causes the tree to twist or sway.
Leaning Trees
Not every leaning tree is dangerous, but a sudden lean or increasing lean is a serious concern.
A tree may be unstable if you notice:
- Soil lifting around the roots
- Exposed or damaged roots
- A lean that has worsened over time
- Cracks in the ground near the base
After periods of heavy rain, saturated soil can reduce root stability and increase the likelihood of uprooting.
Root Problems and Decay
Tree roots are often overlooked because most of the system is underground. Unfortunately, root damage is one of the leading causes of storm failure.
Common causes include:
- Construction damage
- Soil compaction
- Poor drainage
- Fungus or decay
- Repeated drought stress
Mushrooms growing near the base of a tree can sometimes indicate internal decay beneath the surface.
Why Trees Fail During Storms
Storm damage usually happens when environmental stress combines with existing structural weakness.
Heavy Wind
Strong wind places enormous pressure on branches and trunks. Trees with weak branch unions, poor structure, or dense overextended canopies are more vulnerable.
Saturated Soil
When soil becomes waterlogged after repeated rain, roots lose stability. This is especially dangerous for trees already dealing with root decay or restricted root systems.
Structural Weakness
Some trees develop poor structure over time due to:
- Co-dominant stems
- Improper pruning
- Previous storm damage
- Included bark
- Unbalanced canopy growth
Without corrective pruning, these issues can worsen year after year.
Which Trees Are More Vulnerable in PA and NJ?
No tree species is completely storm-proof, but some tend to experience more storm-related failures in our region.
Common vulnerable trees include:
- Bradford pear
- Silver maple
- Norway maple
- Pin oak with decay
- Tulip poplar
- Overmature spruce
- Trees with previous topping damage
Fast-growing trees often develop weaker wood or poor branching structure, especially if they were never professionally pruned.
Older trees can also become more susceptible as decay progresses internally.
What Homeowners Can Safely Check Themselves
Homeowners can perform basic visual observations from the ground, including:
- Looking for dead branches
- Watching for sudden leaning
- Checking for cracks or cavities
- Monitoring mushrooms near the trunk
- Observing canopy thinning or dieback
However, climbing trees or attempting to remove large limbs yourself is dangerous and should be avoided.
Storm-damaged or compromised trees can fail unpredictably, even during inspection.
How Preventative Pruning Helps Reduce Storm Damage
Preventative pruning is one of the best ways to improve tree stability before storm season.
Professional pruning can help:
- Remove dead or weakened limbs
- Reduce excess canopy weight
- Improve branch structure
- Minimize wind resistance
- Reduce the likelihood of limb failure
Regular inspections also help identify hidden problems before they become emergencies.
Since 1983, Willow Tree and Landscaping Service has helped homeowners throughout Bucks and Montgomery Counties in Pennsylvania and Mercer and Hunterdon Counties in New Jersey prepare trees for severe weather with proactive health care and risk evaluations.
What to Do If You’re Unsure About a Tree
If something about a tree looks concerning, it is worth having it evaluated before the next major storm arrives.
Many serious tree failures show subtle warning signs long before they fall. A professional assessment can help determine whether a tree needs pruning, monitoring, cabling, treatment, or removal.
Waiting until after storm damage occurs can significantly increase costs and safety risks.
Bonus Insight: Summer Storms Often Reveal Existing Problems
Storms rarely “cause” healthy trees to fail completely on their own. More often, they expose weaknesses that have been developing for years.
That is why inspections before peak summer storm season can be especially valuable for mature trees or trees located near homes, patios, driveways, and power lines.
Don’t Wait Until a Storm Causes Damage
If you’ve noticed dead branches, leaning, cracks, or other warning signs, it may be time to have your tree professionally evaluated before severe weather arrives. Willow Tree and Landscaping Service helps homeowners across Bucks and Montgomery Counties in Pennsylvania and Mercer and Hunterdon Counties in New Jersey identify potential hazards and reduce storm-related tree risks.
Call Willow Tree and Landscaping Service today at 267-589-1231 or contact us online to schedule a tree safety inspection.