Submitted by Orvis Fly Fishing on Tue, 2016-08-30 06:22 View on Orvis.com Tip of the week Techniques Clearing. Some down trees due to recent flooding. Some hoppers in the meadows. Size 14-12 Bead head Pheasant tails your best bet for the hot days. Cast straight upstream to get it down deep. . Seven-day forecast The South Fork is fishable and getting better.. Conditions Must Have Flies Elk Wing Caddis Classic 14-12 Buy from Orvis.com Bead Head Hare's Ear Nymph Classic 12-18 Buy from Orvis.com Adams Classic 12-16 Buy from Orvis.com Gold Bead Hare's Ear Nymph grey 18-22 Buy from Orvis.com Adams Tan-Black 18-14 Buy from Orvis.com Gold Bead Hare's Ear Nymph tan 18-22 Buy from Orvis.com Driftless Flyfishing Co.