Hatches in October

Seasonal hatch norms. Real-time matches are available on each spot page.

Region 1, West TN

InsectSizesPatternsNotes
midge 18–24 Zebra Midge #20 Year-round; lakes + sloughs

Region 2, Middle TN

InsectSizesPatternsNotes
midge 18–24 Zebra Midge #20 Year-round on tailwaters/lakes

Region 3, Cumberland Plateau

InsectSizesPatternsNotes
midge 18–24 Zebra Midge #20, Griffith's Gnat #20, WD-40 #20 Tailwater staple; year-round on Caney Fork
BWO (fall) 20–22 RS2 #22, Parachute BWO #20 Cool overcast afternoons

Region 4, East TN

InsectSizesPatternsNotes
midge 18–24 Zebra Midge #20, Griffith's Gnat #20, WD-40 #20 Year-round on TVA tailwaters (Clinch, Holston, Watauga, S Holston)
BWO (fall) 20–22 RS2 #22, Parachute BWO #20 Weeks 36-46 (Sep-early Nov); cool overcast afternoons. Shop consensus.