At YYZ with smoke cover from wildfires

The image in question—shared with the wry caption "Caution wake turbulence 😉 (IFKYK)"—captures a scene increasingly familiar to pilots operating in and out of Toronto Pearson (YYZ) and much of eastern Canada and the northern United States in recent years: an airport blanketed in a dense haze of wildfire smoke. The "IFKYK" (If You Know You Know) tag is a knowing wink to fellow aviators who understand that the visible haze layer, reduced visibility, and altered light conditions at YYZ aren't fog or industrial pollution but the now-recurring byproduct of Canada's increasingly severe wildfire seasons. The wake turbulence joke plays on the visual effect where aircraft exhaust and wingtip vortices become dramatically more visible when cutting through a smoke-laden atmosphere, creating striking contrails and vortex trails that wouldn't normally be so apparent in clean air.

For working pilots, wildfire smoke has evolved from an occasional seasonal nuisance into a recurring operational hazard requiring genuine planning consideration. Smoke reduces visibility below VFR minimums with some regularity, complicates approach and departure planning, and can trigger TFRs near active fire zones. Beyond visibility, wildfire smoke degrades air quality to the point that some operators have implemented APU and ground-service adjustments, and flight crews increasingly monitor AQI alongside METARs when planning turns through affected regions. Smoke layers can also create haze-induced visual illusions during approach, particularly affecting depth perception and runway environment acquisition during marginal VFR or visual approaches, which is a real concern for both airline crews flying into YYZ and general aviation pilots transiting the area in smaller aircraft with fewer instrument redundancies.

The broader trend here is unmistakable: since the catastrophic 2023 Canadian wildfire season—which grounded flights, closed airspace, and blanketed cities from Toronto to New York under thick smoke for days at a time—wildfire smoke has become a standing seasonal risk factor that dispatchers, meteorologists, and flight planners must now treat with the same rigor as thunderstorms or winter weather. Airlines serving YYZ, Montreal, and other Canadian hubs have had to build smoke-related contingencies into their seasonal operating playbooks, including alternate planning, fuel reserves for potential diversions, and closer coordination with NAV CANADA on visibility-driven ground stops or arrival metering.

For business and GA pilots, the implications are arguably even more direct, since many light aircraft lack the sensor and display technology that helps airline crews manage reduced-visibility operations, and haze can mask terrain, towers, and traffic in ways that catch VFR-only pilots off guard. The image and its lighthearted caption reflect a broader cultural shift within the pilot community: what once might have been dismissed as an unusual atmospheric anomaly is now routinely discussed, memed, and normalized as part of the seasonal operating environment across North American airspace, underscoring how climate-driven wildfire activity is reshaping day-to-day flight operations well beyond the fire-affected regions themselves.