Decades of Bassmaster Elite, FLW/MLF Pro Circuit and BFL events run from Smallwood State Park and National Harbor; hydrilla and milfoil beds in the big feeder creeks make it one of America's premier tidal bass fisheries.
Maryland~89,000 acresMAX DEPTH 60 FTCLARITY STAINED TIDAL RIVER — 1-3 FT VISIBILITY, CLEARER INSIDE THE SAV BEDS LATE SUMMER
WATER TEMP77°F−5.9°F in 13 daysACCOTINK CREEK AT KEENE MILL RD AT SPRINGFIELD, VA · 9 mi
Measured Monday, September 14, 2026 · refreshed daily · the guide report reads these for you
Potomac River (Tidal) surveyed depth — open the app for the live, zoomable map
The fishery
Potomac River (Tidal) — Washington DC to the US-301 bridge (MD/VA). 89,000 acres, 60 ft at its deepest. Decades of Bassmaster Elite, FLW/MLF Pro Circuit and BFL events run from Smallwood State Park and National Harbor; hydrilla and milfoil beds in the big feeder creeks make it one of America's premier tidal bass fisheries. Alongside largemouth it carries northern snakehead, blue catfish, striped bass and white perch. Forage runs to killifish, mummichog and bluegill.
Species
Largemouth bass · Northern snakehead · Blue catfish · Striped bass · White perch · Crappie
On BassHawk
Everything below points at one goal — finding the most, and the biggest, largemouth bass on Potomac River (Tidal).
Depth contoursSurvey-grade bathymetry with depth labels that adjust to today's pool level.
Daily guide reportA fresh report for Potomac River (Tidal) every day — where the bite is, what's working, what changed.
Real-time conditionsLive water temp, pool level, weather, an hour-by-hour bite score — and the week ahead scored with the best window flagged.
Routed trip plansA timed, routed fishing plan built for the day you're going — launch to last cast.
Mud linesSatellite-tracked water clarity — see where the mud line sets up before you launch.
Spots & logSave your own spots, log catches, and carry them across devices.
Mapped on BassHawk
Traced from pre-dam survey sheets — the roads, foundations and creek beds that were there before the water.
30named creek channels
Getting on the water
Columbia Island Marina (upper end, near (marina) Fort Washington Marina (Piscataway Creek (marina) Leesylvania State Park ramp (Woodbridge (marina) Marshall Hall boat ramp (Charles Co MD, (marina) Sweden Point Marina, Smallwood State Par (marina)
What a guide report looks like
A complete, real report for Potomac River (Tidal) — nothing held back. It ran on that day's conditions; open the app for today's.
SAMPLE GUIDE REPORT · WEDNESDAY, AUGUST 26, 2026
Stained summer water and dropping pressure mean bite early and late. Work the grass and shade through the heat.
WATER 73°FAIR 64°FWIND 4 MPH NNWCLARITY STAINED TIDAL RIVER — 1-3 FT VISIBILITY, CLEARER INSIDE THE SAV BEDS LATE SUMMERSEASON SUMMER
Water's sitting in the comfortable 73-degree range, the kind of temp where bass feed hard at dawn and dusk then tuck into the thickest shade they can find through midday. Stained water means they're less spooky and willing to hunt in shallower, thinner cover than they would in clear water. The pressure's dropping ahead of some weather rolling in, which fires them up. Grass is peak right now at the end of August, and you've got SAV beds sitting full. The sun's bluebird bright today, so expect the shallow bite to compress tight to dawn and dusk windows. If clouds roll in before they clear out, the feeding window stretches longer and shallower. Work the edges and holes in the grass early, then flip shade when the sun climbs.
The day's game plan
EARLY MORNING · 6:32 AM to 8:30 AM
Shallow grass beds and floating mats in 2 to 4 feet, focus on the outside edges and any clear lanes cutting through the vegetation. Work the mouth of small feeder creeks where they join the main flats.
Hollow-body frog, black or dark green, 2.5 to 3 inches, unweighted. Cast tight to the grass line and work it with a steady cadence, letting it sit for a beat when it lands. Push it across open pockets and drop it in any holes. Keep a tight line so you feel the strike.
Bass slide up shallow to feed when the light is low. Stained water lets them hunt in skinny cover and they'll chase a topwater frog over grass without hesitation. The pressure dropping before the weather pushes them to feed aggressively. You've got roughly 90 minutes of prime bite before the sun climbs and they duck for shade.
MORNING · 8:30 AM to 11:00 AM
Transition from shallow grass to the outside edges of the SAV beds, 4 to 6 feet. Work the hard-cover pieces (fallen trees, dock pilings, rock) that sit adjacent to the grass or in the first depth off the flats.
Bladed jig with a paddletail trailer, 3/8 ounce, white or chartreuse blade, dark blue or green trailer, 3 inches. Pitch it tight to cover and work it with a jigging motion, dragging it along the bottom and through the gaps between structure.
The sun's climbing and bass are leaving the grass for cooler, shaded spots. Hard cover next to grass gives them shade and access to the deep water they want to be near. Stained water makes a bladed jig's vibration work harder than a silent bait would. The chartreuse blade punches through the murk and draws strikes from fish that aren't looking directly at the bait.
MIDDAY · 11:00 AM to 3:30 PM
Deep shade: undercuts in fallen treetops, dock pilings and shadows, the thickest brush piles you can find, and inside the deeper SAV beds where the vegetation forms mats. Fish 6 to 10 feet or as shallow as 2 feet if there's overhead cover.
Wacky-rigged soft plastic stick, 5 to 6 inches, natural colors like watermelon or green pumpkin, flicked or dragged slowly right along the cover. Let it fall on a slack line, pause, and inch it through the densest spots. Keep the bait in contact with shade as long as possible.
Sun's at its peak and bass are locked tight to shade. They're not hunting, they're hiding and staying cool. A slow, light bait right in their face sometimes draws a strike out of pure irritation or hunger. The stained water helps here too because the low visibility lets them feel confident sitting in shallow, tight cover during daylight.
LATE AFTERNOON · 3:30 PM to 5:30 PM
Shallow grass beds again, 2 to 4 feet, same edges and pockets you worked early morning. Include any natural bowl-shaped depressions in the grass where water pools deeper.
Spinnerbait, 3/8 ounce, white or chartreuse skirt with a Colorado blade, fished steady and moderately fast along the outside of the grass line and through any lanes. Vary your speed, slow it down in open water and wind it quicker near the cover.
The sun angle's dropping and bass are beginning to slide back up from their midday deep spots. Spinnerbait covers water and the blade's thump works in stained water. The pressure's still dropping before the weather, which keeps them a bit more aggressive than usual. You're setting up for the evening feed.
EVENING · 5:30 PM to 7:00 PM
Shallow flats 2 to 5 feet, focus on creeks, pocket water between grass mats, and anywhere baitfish might be corraled. Work both the grass edges and the open sand flats near the vegetation.
Paddletail swimbait, 3.5 to 4 inches, shad pattern or pearl, 1/4 ounce. Cast and retrieve with a steady, natural swim. Work a wider area and cover more water than you did early morning. Let the bait's profile and motion do the work.
Light's dropping and bass are feeding hard now. This is the second prime bite of the day. Stained water means they're willing to hunt in shallower, thinner cover than they would be in clear water. Spoons and swimbaits produce well when bass are actively feeding and the water clarity is a step down from gin clear.
DUSK · 7:00 PM to 7:47 PM (sunset)
Shallow grass mats, floating vegetation, and feeder creek mouths, 1 to 4 feet. Work the same pockets and edges you fished at dawn, now on the dusk feed.
Hollow-body frog, dark colors (black, dark green), or a small buzzbait, 3/8 ounce, worked with purpose. Cast, pause, and work it deliberately. Keep your cadence steady so you feel any take.
This is the final push before dark. Bass are feeding hard in shallow water and topwater or buzzbait works best when the light is failing and bass can't see as far but are willing to hunt near the surface. Pressure's still dropping, which has them aggressive. You're capitalizing on the day's last light window.
NIGHT · 7:47 PM to midnight
Shallow grass mats, feeder creeks, and any water 2 to 6 feet with cover overhead. Bass will hunt through the grass and shallows all night once the sun drops.
Dark-colored soft plastics on a jig or Texas rig, 5 to 6 inches, black or dark green, 3/8 to 1/2 ounce. Feel your way through the cover with a slow drag and light pressure. You're fishing by feel and sound more than sight.
Once dark, bass lose light-based inhibition and hunt the shallows hard. They'll feed through grass, weeds, and shallow flats where they wouldn't venture in daylight. The stained water actually helps you night fish because the murk doesn't change much when the sun sets. Work slowly and methodically. Most anglers quit at dark but night fishing the Potomac in summer can be some of your best fishing if you're patient.
Where to fish
Shallow grass beds and floating mats — 2 to 5 feet · Hydrilla, milfoil, wild celery, with clear lanes and pockets through the beds Peak August grass is holding bass throughout the day. Early and late the bass hunt the edges; during midday they slide to the densest patches. Stained water makes them confident in thin, shallow cover.
Feeder creek mouths — 2 to 8 feet, depending on tide · The junction where small creeks enter the main river, usually with a slight depth break, sometimes with hard bottom or scattered brush Baitfish concentrate here, bass stage on the break waiting to ambush. Creeks also funnel tide current and create feeding opportunities. Early morning and evening, these are prime.
Hard cover adjacent to grass — 4 to 8 feet · Fallen trees, dock pilings, rock, brush piles, natural wood, positioned next to shallow grass or in the first drop-off from the flats Gives bass shade, depth access, and proximity to shallow feeding areas. When the sun climbs, bass transition to these spots. Mid-morning through late afternoon, hard cover near grass is money.
Deep shade and brush — 2 to 10 feet, tight to cover · Undercuts in fallen timber, the thickest brush piles, inside dense mats where water is dark and cool, any overhead cover Midday refuge. Bass aren't feeding, they're hiding and staying cool. Slow, patient pitches right in the shade will pull a strike from a bass that's basically cornered by the heat.
What to throw
Hollow-body frog — 2.5 to 3 in · Black or dark green · n/a (Dawn and dusk, low light, over shallow grass) Cast to grass edges and mats, work with a steady cadence and let it sit in pockets. Keep tension so you feel the strike.
Bladed jig with paddletail — Jig 3/8 oz, trailer 3 in · White or chartreuse blade, dark blue or green trailer · 3/8 oz (Morning as sun climbs, transition areas, 4 to 6 feet) Pitch to hard cover, jig vertically or drag along bottom. Work the gaps between structure and outside grass edges.
Wacky-rigged stick — 5 to 6 in · Watermelon or green pumpkin · n/a, rigged weightless or with a small nail weight (Midday in deep shade and thick cover) Flick or drag slowly right along heavy cover. Let it fall on slack line, pause, and inch it through shade.
Spinnerbait — n/a · White or chartreuse skirt, Colorado blade · 3/8 oz (Late afternoon, edge of shallow grass, 2 to 4 feet) Fish steady along grass edges and through lanes. Vary speed, slower near cover, quicker in open water.
Paddletail swimbait — 3.5 to 4 in · Shad pattern or pearl · 1/4 oz (Evening bite, 2 to 5 feet, open and grass-adjacent water) Steady retrieve with natural swimming motion. Cast and cover water methodically, work wider areas.
How to work it
Edge pitching — Midday when bass are tucked in cover, and early/late when they're shading near structure · Shallow shade, fallen timber, dock pilings, 2 to 6 feet Flip a bait tight to hard cover (trees, docks, brush) with a short rod movement, feel it land and stick through the strike zone. Repeat along the same line of cover.
Grass-line swimming — Early morning, evening, and dusk when bass are hunting along structure · Outside edges of floating mats and submerged grass, 2 to 5 feet Cast parallel to the outside edge of SAV beds and swim a bait just off the edge, letting the cover guide your retrieve. Make contact with the grass line but don't penetrate it unless using a frog or weedless bait.
Open-water casting — Evening into dusk and the window just before dark when bass are roaming shallow · Spaces between grass mats, creek mouths, open flats, 1 to 5 feet Cover open pockets and sand flats with a steady retrieve. Cast methodically, work baits with natural motion, and cover water efficiently without overthinking each cast.
Pro tips
Tide controls everything on the Potomac. The pressure drop ahead of the weather will likely push a slight flood or amplify whatever the tide's already doing. Check your tide table and target the window when water's moving into the shallows early morning and late evening. Bass stage predictably on high tide and pull back on the drop.
Night bite is real and underused. Once the sun sets and bass lose their light-based caution, they hunt shallow grass and flats hard. If you're willing to stay after dark on stained water with dark-colored plastics, you can catch fish when most anglers have left the water.
Stained water is your friend today. The low visibility lets bass hunt in shallower, thinner cover without spooking. Don't fish like it's gin clear. Work closer to the cover, make more pitches, and trust that they can't see you as well as they normally would.
If conditions change
If the pressure stabilizes or rises after the front, or if the sun gets blocked by heavy clouds before evening, the shallow bite extends longer and spreads wider. Bass will hunt in open grass and thin cover during times they'd normally be tucked in shade. Keep your morning and evening game plan but watch for bonus shallow action in mid-morning and early afternoon. If the wind picks up and creates a chop or stain increase, shift heavier to bladed baits and vibration. If water clears unexpectedly (less likely given the tidal input), downsize everything, lengthen your leader, and fish more finesse. If the water muddies further, go darker colors and increase vibration, lean harder on black and blue plastics and chartreuse-blade spinnerbaits.