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
RegThe barbless rule does not apply below the dam, and people get this wrong constantly. Single barbless hooks and a 1-trout limit apply upstream of the Lucky Nugget causeway, up toward Lee. From the causeway downstream — the reservoir and the entire tailwater — it is 5 trout, no gear restriction, open year-round and any hour, with black bass catch-and-release March 1 to June 30. NDOW's water page lists the barbless rule without saying which reach, which is where the confusion starts. Full rules on the regulations page.
RegRuby Lake NWR opened the South Marsh August 1 — but to motors of 10 horsepower or less, not gas motors generally. August 1 through December 31 it is motorless craft plus 10 hp and under. FWS also warns that many channel markers are missing.
CareThree bits of road to know this week. Lower South Fork Road reopened August 4 after its week-long closure, so the Twin Bridges approach should be back. Gravel work at the Sherman Avenue mailboxes runs August 3 to 6 — no closure, but it is active as you read this. And Spring Valley Parkway is under reconstruction August 3 to 14 with lane restrictions, which is the Spring Creek approach a lot of us use.
TipAt 0.09 cfs the mainstem at Elko is a chain of isolated pools. If you find fish stacked in one this month that is not a honey hole — it is a refuge, and every fish in it dies if the pool gets worked over. Drive past it.
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