Issue No. 5 · Week of August 3, 2026 · The Weekly Lowdown

Below the dam, before the heat.

The smoke hangs on one more day, then clears. Behind it the ridge rebuilds into four straight days at or above 100, peaking Friday at 102. The tailwater is at 5.4 cfs — down 41 percent in a fortnight but finally holding — and it is still the best moving water in the county if you go at first light.

This Week's Bite

Fair · Low & Clear, Fish Early
SlowFairGoodHot
01

The Lowdown

Two weeks of smoke are nearly done. The air quality alert that covered Elko, Lamoille, Spring Creek and South Fork expired July 30 and has not been reissued, and Elko was reading around 64 — Moderate — Sunday evening. One caveat: NWS extended the smoke a day between Saturday's forecast and Sunday's. Monday now carries "areas of smoke" all day and again Monday night, clearing Tuesday at dawn. The source is the Ward Fire on Ward Mountain south of Ely — 0 percent contained with extreme fire behavior — so treat Tuesday onward as forecast, not promised.

Closer to home the news is good. The Secret Pass Fire is holding at 3,300 acres and 70 percent contained with minimal fire behavior, and the incident team's estimated containment date is Wednesday — the day this lands. Chimney, Boyd, Long Canyon and Hoppie Basin are all off the large-fire report. Sunday's Red Flag Warning expired at 11 PM without being extended.

Then the heat, and this is the part that changed since last week. The ridge is rebuilding harder and staying longer than forecast: 98 Wednesday, 101 Thursday, 102 Friday, 101 Saturday, 100 Sunday. That is four days at or above the century mark, with the peak on Friday rather than midweek, and the forecast office is already saying heat advisories may be needed again. No rain in any period all week.

The water has one genuinely encouraging line in it. The South Fork below the dam is at 5.4 cfs, roughly 39 percent of the post-dam median for the date. It fell 41 percent over the fortnight, but the slide has stopped — inflow above the reservoir has ticked up four days running and the tailwater has held near 5.4 since Saturday. Low and clear and not getting worse. Go at first light, fish finer than feels necessary, and be off the water before the afternoon does what it is going to do.

02

Water Conditions

South Fork Humboldt — Below the Dam

Flow5.4 cfs · 39%
Gage Height2.21 ft
14-DayDown 41%
Limit5 trout · no gear rule

The one that matters. Gauge 10320000, a mile and a half below the dam, read 5.44 cfs and 2.21 feet Sunday evening against a post-dam median of 14 for the date. Thin — but this is a tailwater in August in a drought year, and 39 percent of median is a different planet from the half a percent the mainstem is running at Elko. The trend is worth reading carefully, because it is not a straight line. Daily means ran 9.26, 10.2, 8.00, 8.03, 7.45, 7.09, 6.67, 6.32, 6.24, 6.21 — then dropped 12 percent in a single day to 5.49 on August 1, and have held near 5.4 since. Down 41 percent over the fortnight, but flat for three days now, and the inflow gauge above the reservoir has actually risen slightly four days running. Call it stabilized, not recovering. Fish it accordingly: long leaders, 6X, smaller than you want to tie on, and treat every fish as spooky, because in two feet of gin-clear water it is. Rainbows here commonly run 14 to 22 inches, alongside bowcutt, wild browns, smallmouth and channel cat. There is no USGS temperature sensor on this gauge — carry a thermometer and stop at 67°F, which on a 101-degree afternoon will arrive well before you want it to. Access is the constraint, not the fish. The state park's water below the dam runs a quarter mile past the spillway; that is the stretch you can count on. NDOW describes fishable water some twelve miles down to Hunter Banks Diversion, but ownership below the park boundary is a patchwork of BLM and private ranch, and Nevada has no high-water-mark access right — the courts have never settled public trust on small streams here. Know whose ground you are standing on.

Ruby Mtn Lakes — Lamoille Canyon

AccessNo posted alert
Valley Floor93–102°
High CountryBelow 95 all week
Advantage~20° cooler

The week's other argument. The Ruby Mountains and East Humboldt zone forecast keeps the high country below 95 every single day while the Elko valley floor clears 100 four days running — a gap of roughly twenty degrees at the top of the range on Thursday and Friday. For a forty-minute drive, that is the difference between fishing and enduring. Worth knowing: the advantage is almost entirely a daytime one. Overnight the high country and the valley very nearly converge, because the Elko basin drains cold air and pools it on the floor. You are climbing for the afternoon and for the water temperature, not for the sunrise. One caveat we could not fully close: there is no closure or alert posted for Lamoille Canyon Road or Road's End on the Humboldt-Toiyabe alerts page, and every canyon closure story in search is from 2022, 2023 or the 2025 repaving. Access looks normal — but absence of a posted alert is not a confirmation, and this is fire season. Call the Ruby Mountains Ranger District before a long drive.

Reservoirs — South Fork & Wild Horse

Pool5,230.21 ft
7-Day Drop0.21 ft · faster
Boat Ramp26/27 closed
Wild Horse36% capacity

Two separate closures here, and they are getting conflated. The boat ramp between sites 26 and 27 is closed for the season — posted July 29, low water, not fire, and it will still be true midweek. That is different from the July 28 closure of the reservoir to all boating so aircraft could dip. As of Sunday night that second notice has been taken off the State Parks site entirely and no boating restriction appears on the park's alert banners — which is what you would expect if it had been retired, but nobody has published a reopening. Call before you tow anything: 775-744-4346. Note it is a reservoir closure either way; it has no bearing on the river below the dam. The pool is at 5,230.21 feet, down 0.21 in the last week against 0.08 the week before — the drawdown is roughly two and a half times faster than it was, which is what happens when a pass-through reservoir keeps releasing into a summer with nothing coming in. Surface was 72° at the last NDOW reading, which is now three weeks old. On algae, the sources still disagree and you should know that: NDOW posts a harmful algal bloom watch dated July 10, while the state's own HAB dashboard does not list South Fork among active advisories. Neither has moved. Nobody publishes whether the dam releases from the surface or from depth, so we cannot tell you what that means for the water below it. Keep dogs out of the reservoir. Wild Horse is the opposite story and it is not close: 36 percent of capacity and 14 feet lower than this date last year. It never filled this spring. Dock out since July 24, surface mid-to-high 70s, algae growing fast. The trout there are done for the season.

The Mainstem & Lamoille Creek

Elko Gauge0.09 cfs · 0.5%
Carlin Gauge8.0 cfs · 18%
Susie Ck0.00 cfs
Lamoille Ck3.8 cfs · 17%

A correction we owe you. Earlier issues carried Humboldt flow figures from an aggregator that disagreed badly with the USGS record — we printed 2 cfs and 33 percent of normal for Elko in late July when the USGS daily mean that day was 0.14 cfs against a median near 20. Every number in this newsletter now comes from the USGS gauges directly. The mainstem at Elko is down to 0.09 cfs — under half of one percent of median, and roughly half what it was on Friday. Susie Creek at Carlin has read a flat 0.00 every day for a week. One oddity worth flagging rather than hiding: Carlin has gone the other way, from 3.03 cfs on July 30 to 7.98 now — up while Elko upstream fell to nothing. That is accretion between the two gauges, most likely irrigation return flow, and the values are provisional. It is still only 18 percent of median, and it does not make the mainstem a fishery. Lamoille Creek is the honest second option for moving water, and it has slipped too: 3.79 cfs against a median of 22, so 17 percent, down from 21 a week ago. Strictly first light, thermometer in the pocket.

Native Waters — Jarbidge & the Snake Range

CR748Reopened
ClarityClear
Water Temp~58°
StatusWild · C&R

A rare piece of current road news: the Charleston-Jarbidge Road, CR748, has recently reopened, with county crews planning mitigation work on downed trees. That is the first this-year information on that country we have been able to find. Do not trust the community road-conditions page that ranks first in search — it was last updated in 2021 and still tells you the only recommended access is via Rogerson, Idaho. Call Elko County Roads at 775-738-5036, or the Mountain City-Ruby Mountains-Jarbidge Ranger District. Stage 1 fire restrictions run through October 31 on both the Humboldt-Toiyabe and the BLM Elko District, and the two agencies word the equipment rule differently — the Forest Service wants chainsaw and similar work completed by 1 PM, BLM restricts internal combustion equipment 1 PM to 1 AM. Campfires only in developed sites; gas stoves are fine on BLM ground; smoking only in a vehicle or a three-foot cleared area. Redband and Bonneville cutthroat are eating hoppers in the shade. Bull trout in the Jarbidge go straight back in the water.

03

Weather Outlook

Mon
Smoke
93°
N 10
Tue
Sunny
94°
NE 5
Wed
Sunny
98°
NE light
Thu
Hot
101°
W light
Fri
Hot
102°
SW light
Sat
Hot
101°
SW light
Sun
Hot
100°
Wind in mph · sunrise 5:44 Wednesday, usable light from about 5:15 · smoke lingers through Monday night and clears Tuesday at dawn · four straight days at or above 100, peaking Friday — no heat advisory is up yet but the forecast office says one may be needed midweek · zero percent chance of rain in every period, all seven days · live 10-day forecast →
04

The Fly Box

Pale Morning Dun
#16–18 · dry / emerger

The tailwater fly for a low, clear August morning. Fish the emerger in the film first — at 5.4 cfs the fish are sitting in the few seams that still have current and they will not move far for anything. If you get refused, go a size smaller before you change pattern.

Dave's Hopper
#8–10 · dry

Peak grasshopper and still the highest-percentage fly for the banks. Cured-out grass, triple-digit afternoons, naturals everywhere and clumsy about it. Slap it a foot off the grass on Lamoille Creek and along the windward banks up top. Do not present it politely.

Callibaetis Parachute
#14–16 · dry

The alpine lake fly for August. Callibaetis come off the shallow weedy margins of the Ruby lakes mid-to-late morning once the sun is on the water, and once the smoke clears Tuesday the light goes hard and direct again — fish get selective in a way they were not last week. Match the size first.

Zebra Midge
#18–22 · dropper, 4–6 ft

Two feet of clear water below the dam means a dry-dropper with a very short, very light tag, not a nymph rig. Tie it off the hopper on 6X and keep the whole thing quiet. Same fly, hung deeper off the shelf edges, keeps you fishing the upper lakes when the surface shuts down.

05

Hot Spot of the Week

Island Lake
Lamoille Canyon · ~9,600 ft

The tailwater is the week's best fishing, but it is a dawn fishery and it is over by nine. If you want a full day out of the heat, this is it: a two-mile climb from Road's End puts you in a glacial cirque at 9,600 feet, in a zone the forecast keeps under 95 all week while Elko runs 101 and 102. Brookies work the drop-offs and the inlet seam, and the shallow weedy margin on the outlet end is where the Callibaetis come off once the sun gets on it — so unlike most weeks this summer, the mid-morning is genuinely worth staying for. No ramp to check and no closure to call about. Confirm canyon access before you leave town, carry more water than you think the hike needs, and be honest about the elevation if you are not acclimated.

TargetBrook Trout
Best Window5:15–10:30 AM
MethodCallibaetis parachute on the weed edge
06

Field Notes

Get the dispatch every Wednesday

One email a week — the bite, the water, the wind, and where to point the truck.

First light, light tippet, then get off the water. — Great Basin Flyfisher

Questions, tips, or a report from the water? info@greatbasinflyfisher.com