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Reservoir
Pool Zone Stack
Bull Shoals Lake · each zone shows its operating agency.
695659654628.5
Flood Pool
659–695 ft
USACE Little RockFlood-control storage above top of power pool
Power Pool
654–659 ft
SWPA (Southwestern Power Administration)Hydropower generation (8 turbine units)
Conservation Pool
628.5–654 ft
USACE Little RockMinimum-flow / navigation / water supply
Pulse · 24 h forecast
Projected Flow at Named Locations
Walks today's release schedule downstream by per-generator speed.
Wildcat Shoals
mi 5.5
2,425
cfs at +24h
Now → +24h
Cotter
mi 11
2,425
cfs at +24h
Now → +24h
Roundhouse Shoals
mi 14.5
2,425
cfs at +24h
Now → +24h
White Hole
mi 21
2,425
cfs at +24h
Now → +24h
Tributaries
Confluence Inflows
Live gauges entering the mainstem. Spikes here cause USACE to throttle Bull Shoals.
Norfork Tailwater
North Fork dam release
USGS 07060000
Flow
—cfs
24 h
—
Mile
0.0
BASIN 24 H · 0.00 inHOURLY ACCUM
Norfork inflow (MO)
North Fork dam release
USGS 07057500
Flow
667cfs
24 h
-8%
Mile
25.8
BASIN 24 H · 0.00 inHOURLY ACCUM
Radar · 24 h
Precip by Sub-Basin
Open-Meteo at basin centroids · © RainViewer (CC-BY 4.0) — radar via NWS MRMS
Bull Shoals · upper0.00″
Crooked Creek0.10″
Buffalo · headwaters0.06″
Norfork · tributary0.00″
Sylamore · drainage0.00″
24 h 72 h
Operating Calendar
Seasonal Newport Targets
WINTER
12-01 → 04-14
21 ft
Winter navigation pool — release modulated to hold 21 ft at Newport
SPRING
04-15 → 05-07
14 ft
Spring transition — releases trimmed for spawn / lower navigation
SPRING● NOW
05-08 → 11-30
12 ft
Summer/fall low-water target
Generation scheduleNot yet published · check back 5 pm CT
Pulse Model
generators = round(cfs / 3300)
speed = lookup(generators)
attenuation = 1 − 0.85 × min(1, t / (D/2))
deadLow = 850 cfs
speed = lookup(generators)
attenuation = 1 − 0.85 × min(1, t / (D/2))
deadLow = 850 cfs
Speed Table · mph
0 gen → 0 mph
1 gen → 1.875 mph
2 gen → 2.375 mph
3–4 gen → 2.875 mph
5–6 gen → 3.375 mph
7–8 gen → 4.25 mph
Sources
USACE Little Rock · SWL_WC
SWPA · Hydropower dispatch
USGS · NWIS gauges
NWPS · NOAA forecasts
RainViewer · radar tiles
SWPA · Hydropower dispatch
USGS · NWIS gauges
NWPS · NOAA forecasts
RainViewer · radar tiles
v1 Caveats
Speed table from a resort owner — needs CLRA4 calibration.
Attenuation curve is linear placeholder for exponential.
Generation schedule not scraped — flat-extrapolated.
Attenuation curve is linear placeholder for exponential.
Generation schedule not scraped — flat-extrapolated.