ByTanner Peterson, ISA Certified ArboristonNovember 11, 2026•
Santa Ana winds present significant risks to trees throughout Orange County. Strong gusts, drought stress, aging trees, and structural defects can increase the likelihood of branch or tree failure. Regular inspections and proper maintenance can help identify potential hazards before severe weather arrives.
As an ISA Certified Arborist, I recommend homeowners visually inspect their trees from the ground before and after major windstorms. Walk around each tree from several safe viewing angles, observing the canopy, trunk, major branch unions, and visible roots.
Look for dead or hanging branches, cracks in the trunk, weak branch attachments, and splitting where major limbs connect. Pay particular attention to the root flare and surrounding soil. Newly lifted soil, heaving roots, or a sudden change in the tree’s lean may indicate structural instability.
After a storm, watch for broken branches caught
After a storm, watch for broken branches caught in the canopy, commonly called “hangers.” These can fall unexpectedly. If you notice significant damage, restrict access beneath the affected tree and contact a qualified professional. Never attempt to climb or remove hazardous branches yourself.
An ISA Certified Arborist can evaluate tree health, structural defects, and potential risks to nearby homes, vehicles, and pedestrians. Professional assessments help determine whether pruning, monitoring, structural support, or removal is appropriate.
One common mistake is topping trees to reduce their height. Topping creates large wounds, encourages weakly attached regrowth, and can increase decay and future maintenance costs.
Proper pruning follows ANSI A300 Tree Care Standards
Proper pruning follows ANSI A300 Tree Care Standards and ISA Best Management Practices. Selective reduction cuts, structural pruning, and appropriate branch subordination can reduce excessive limb weight while preserving healthy growth and natural tree structure. No pruning method eliminates all tree-related risks.
Fullerton residents should also understand tree ownership responsibilities. Trees within public parkways may be City-maintained street trees and require authorization before pruning or removal. Contact Fullerton Public Works Maintenance at (714) 738-6897 or maintenance@cityoffullerton.com to verify responsibility and obtain guidance. Private-property and HOA trees are generally maintained by their respective owners or associations.
Before hiring a tree service, verify the contractor’s license through the California Contractors State License Board at cslb.ca.gov. ISA Certified Arborist credentials can be verified through treesaregood.org. Request proof of liability and workers’ compensation insurance and confirm that work follows applicable ANSI A300 and ANSI Z133 standards.
Healthy trees provide shade, beauty, and environmental benefits
Healthy trees provide shade, beauty, and environmental benefits. Proactive inspections, professional evaluations, and proper pruning help preserve these valuable assets while reducing preventable risks during Santa Ana wind events.
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Tagged as: Checking Your Trees Before and After Santa Ana Winds, ISA Certified Arborist, Tanner Peterson
