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Lightning-Sparked Wildfire Near Slave Lake Remains Uncontained as Evacuation Alerts Persist

Crews have built around 60% of containment lines following brief rain that reduced fire activity.

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This aerial handout picture courtesy of the Alberta Wildfire Service, taken May 10, 2024, shows smoke from wildfires burning in the Grande Prairie forest area, four kilometres east of the town of Teepee Cree.
The SWF149 wildfire near Slave Lake, Alta., broke out on Sunday, July 20, 2025.

Overview

  • The lightning-sparked blaze has consumed 44 hectares northeast of Slave Lake and continues to burn out of control.
  • Town officials and rural residents have received evacuation alerts and are urged to pack essentials and keep vehicles fueled and ready for four- to eight-hour notices.
  • Crews from the Lesser Slave Regional Fire Service and Alberta Wildfire are deploying helicopters, air tankers, heavy equipment and night-vision aircraft to establish containment lines.
  • Cooler temperatures and recent rain briefly reduced fire activity, but forecasts predict a return to hot, dry conditions that could fuel further spread.
  • Local authorities are leveraging 2011 wildfire experience to improve mutual aid, training and community evacuation planning for faster, more coordinated responses.