The delayed onset of fall foliage could affect tourism and travel plans for those seeking peak leaf-peeping conditions. Visitors to the central and southern Appalachians may need to adjust their schedules to align with the later peak dates. Additionally, areas experiencing drought or inconsistent moisture may see muted colors, potentially disappointing travelers in those regions. Heavy rainfall, another possible effect of El Niño, could also prematurely strip leaves from trees, reducing the window for optimal viewing.