Zombie Fires in the Okanagan: How Hidden Wildfires Threaten Businesses in 2025

Most assume wildfire season starts with the summer heat. However, ‘zombie fires’—underground holdover fires—can reignite with little warning. For Okanagan businesses, these hidden threats are becoming an increasing concern as warmer winters and prolonged drought make the conditions ripe for re-ignition.

What Are Zombie Fires?

Zombie fires are underground smoldering hotspots that survive winter beneath the surface. They can reignite in warmer months, sparking wildfires even before the typical fire season starts. These fires burn slowly in peat moss, duff, and organic forest floor materials, often going undetected until flare-ups occur.

Why Zombie Fires Matter in the Okanagan

The Okanagan Valley’s dry landscapes, coupled with warmer winters, have made zombie fires a growing threat. In 2024, early wildfire activity was linked to these underground holdover fires. Unlike visible wildfires, zombie fires smolder silently until they surface, posing surprise risks to nearby commercial properties and infrastructure.

Business Impacts of Zombie Fires

• Unexpected ignitions near industrial and commercial zones
• Extended wildfire seasons beyond traditional summer months
• Risk of damage to underground utilities and infrastructure
• Increased operational and insurance costs for businesses in high-risk areas

Detection & Mitigation Strategies for Businesses

• Thermal Imaging & Drones: Utilize drone surveillance and satellite monitoring to detect underground heat anomalies.
• Routine Inspections: Regularly inspect properties, especially near forest edges or peat-heavy zones.
• Defensible Space: Maintain clear zones around buildings by removing flammable ground cover and debris.
• Partner with Experts: Engage wildfire mitigation specialists like SPIEDR for comprehensive protection plans.

Frequently Asked Questions (FAQs)

What are zombie fires and why are they dangerous for Okanagan businesses?

Zombie fires are underground smoldering fires that survive winter and can reignite in spring or summer. They pose hidden wildfire risks by flaring up near businesses with little warning.

How can businesses detect zombie fires early?

Using thermal imaging drones, satellite monitoring, and routine ground inspections can help detect underground hotspots before they surface.

What can Okanagan businesses do to prevent zombie fire damage?

Businesses should maintain defensible space, conduct proactive property inspections, and work with wildfire mitigation professionals to minimize risk.

Conclusion

Zombie fires are an often-overlooked but serious wildfire threat in the Okanagan. Year-round vigilance and proactive mitigation are essential to protect commercial properties. Partner with SPIEDR for advanced wildfire detection and protection strategies tailored to your business needs.