South Holston & Watauga Fishing Report: The Spring Fishing You've Waited For!
March 2026 fishing was strong, and April is shaping up to be excellent on the South Holston and Watauga Rivers. See current conditions, hatches, flows, and our spring forecast.
4/5/20266 min read
Spring Has Finally Turned the Corner on the South Holston and Watauga.
After a productive March, April is bringing some of the best dry fly fishing of the year to the South Holston and Watauga River River traffic has been heavy to start April—and we can certainly understand why. We are entering some of the best fishing of the year.
On the Watauga River, the annual black caddis hatch has begun, and this dependable hatch typically lasts around two weeks. Anglers should take full advantage while it’s here. The South Holston is also fishing well, with daily blue-winged olive hatches already underway, and we are predicting sulfurs to begin showing up by the end of the month. The next few fishing reports should be exciting ones. If you would like to learn more about the South Holston or Watauga River, we curated pages that include tips, techniques, river access and more!
Now, here’s what we’ve been seeing on the water so far.
Spring Dry Fly Fishing Is Heating Up: Blue-Winged Olives on the South Holston and Black Caddis on the Watauga
For the dry fly enthusiast, this is one of the best times of the year to be on the water. On the South Holston, we’ve been seeing blue-winged olive hatches almost daily. The BWOs have been running slightly larger than typical—around size #20—and hatch activity has been spread across much of the river. The most consistent dry fly window has been from roughly 3:00 to 4:00 PM.
As water temperatures continue to climb, we expect blue-winged olive activity to gradually taper off while sulfur activity begins to increase. Late April typically brings a noticeable spike in sulfur hatches on both the South Holston and Watauga, and anglers should start preparing their boxes accordingly.
The annual black caddis hatch has officially begun on the Watauga River, and this year our guides have already observed strong caddis activity earlier than normal—starting around April 1. While the dry fly fishing hasn’t fully peaked yet, we believe the second week of April should provide prime conditions for this hatch.
For anglers targeting the hatch on foot, the stretch from the 19E Bridge down through the Johnson City section continues to offer some of the best opportunities to find consistent bug activity.
Check out his stomach sample from a brown trout on the South Holston River!
Sharri landed this big brown trout on a Blue Winged Olive Dry Fly!
Why March Nymphing Was So Productive, And the Flies That Made It Happen
The nymphing during March was outstanding.
March is consistently one of the best months of the year for nymphing on both the South Holston and Watauga Rivers, and we believe that comes down to two key factors. First, there is typically less fishing pressure during the late winter months, meaning trout have not been heavily pressured for several weeks. Second, March often brings gradually warming water temperatures, which create ideal conditions for aquatic insects to become more active and for trout to begin feeding more consistently.
March 2026 delivered exactly what we’ve come to expect over the past several years—strong, dependable nymphing on both rivers. Our guides found steady success throughout the month, especially during stable flows and warming afternoon conditions.
Below are the flies that produced the most consistent results for our clients on the South Holston and Watauga this March.
Top Producing Flies for the South Holston River: Late March Through Early April
These fly patterns have produced the most consistent results for our clients and guides on the South Holston River during the transition from late March into early April. With steady blue-winged olive activity and continued midge pressure, size #20 patterns have remained the most dependable producers.
Top Producing Flies:
#20 Zebra Midge (Olive, Gray, Purple)
#20 Rod’s Blue-Winged Olive Nymph
#20 Mayhem Midge (Olive, Gray)
#20 Blue-Winged Olive Comparadun
#20 BWO Puff Daddy
Late March Through Early April Productive Fly Patterns on the Watauga River
These fly patterns have produced consistent results for our guides and clients on the Watauga River during the late March through early April transition. With fluctuating flows, active caddis movement, and continued subsurface feeding, a mix of midges, attractor nymphs, and egg patterns has been the most reliable approach.
Top Producing Flies:
#20 Purple Zebra Midge
#18 Frenchie Pheasant Tail
Glo Bug (Pink, Orange, Yellow)
#16 Red Butt Caddis Pupa
#14 Duracell Nymph
#12 Pat’s Rubber Legs
Your April Fly Fishing Forecast for the South Holston and Watauga Rivers
On the South Holston River, we’ve been spoiled with a steady 350 CFS sluice flow for most of March. This flow is not only ideal for wading, but it has also provided excellent conditions for drift boats. Unfortunately, due to a dry spring, the Tennessee Valley Authority has notified us that they will likely scale back the additional flow until South Holston Lake receives more rainfall.
The TVA has also been performing turbine maintenance this spring, which is why we’ve been seeing a consistent sluice flow instead of extended generation periods. If turbine calibration is still ongoing, we may begin to see a smaller sluice—closer to 200 CFS. If that happens, that is actually one of our favorite flows for both floating and fishing the South Holston. Either way, April is shaping up to be a strong month, and regardless of dam operations, anglers should expect excellent fishing opportunities.
As water temperatures continue to rise, sulfurs should begin to show up toward the middle to latter part of the month. Nymph fishing will remain productive as more aquatic insects emerge from winter dormancy and trout feed more consistently throughout the day.
The Watauga River is on the verge of exploding with black caddis activity. These flies typically run in size #14, and the hatch is truly something to witness. Caddis often emerge in waves—bringing solid dry fly fishing for an hour or two in the morning, another spike in the afternoon, and heavy activity around sunset. We are already seeing the early stages of the hatch, so we expect peak activity to occur through the first half of April, with numbers beginning to taper off around April 15.
Last year, sulfurs began to overlap with the tail end of the caddis hatch during this same window, creating some of the best dry fly fishing of the season. If that pattern repeats, anglers could be in for another outstanding stretch of fishing.
The one factor currently slowing fishing on the Watauga is a daily one-hour generation release from 7:00 to 8:00 AM. Even this short release brings a noticeable surge in flow along with muddy water conditions. That pulse typically reaches the prime caddis hatch sections between roughly 10:00 AM and 2:00 PM, depending on where you are fishing. From what we’ve experienced, fishing during this higher water has been less productive and can slow the bite for an hour to an hour and a half after the release passes through.
The TVA is making this release due to ongoing turbine maintenance at Wilbur Dam. Anglers should pay close attention to rising water levels and always prioritize safety. If you notice the water beginning to rise, exit the river immediately—wading during high flows is not safe.
One effective strategy is to drive farther upriver and position yourself above the release so you can fish stable water conditions throughout the day.
Check Out Some of Our March Fly Fishing Highlights
March offers some outstanding fly fishing opportunities on both the South Holston and Watauga Rivers. Take a look at a few of the happy anglers who joined us on the water and helped create some memorable highlights over the past month.
April Through June is Some of the Best Times of the Year to Experience These Rivers
The South Holston River and the Watauga River will only continue improving as we move toward summer. Spring consistently brings some of the most productive fishing of the year, Caddis, and Sulfur are just around the corner!
If you'd like to spend a day on the water, you can book a Guided Fly Fishing Trip with us to experience these fisheries at their best. Inquiring about a trip? Contact Us.
For the most current river updates and seasonal fishing conditions, visit our South Holston and Watauga River Fishing Reports page.
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