The wildfire layer combines BC Wildfire Service polygons and point incidents (where the map view overlaps British Columbia) with Canadian Wildland Fire Information System (CWFIS) mapped polygons for the rest of Canada. Overlapping CWFIS shapes are dropped where they duplicate BC data (same footprint or very close to a BC point incident). Alternate configuration can show BC-only or satellite-only perimeters. All fire geometry is for situational awareness only—not for emergency use, official fire orders, or navigation around active incidents.
CASR CAR 601.15 advisory disk: the red geodesic circle is a fixed planning hint for the lateral limit described in aviation regulations—not the full legal text and not altitude limits. It is not parsed from NOTAMs; see NOTAM overlays for purple and other NOTAM-derived shapes.