The Department of Public Safety's E.M.O. advising the fire may get bigger briefly due to the technique being used to put it out and sirens may also be heard while this happens.
A release on the provincial government's web page says the procedure must be carried out during the day. The burn is needed so evacuees may return to their homes as soon as possible.
The evacuation zone, which covers a two kilometre radius around the derailment, remains closed and a no-fly alert over the site is in place.
The evacuees are allowed to check on their homes at specific times until it's considered safe for them to return permanently.
