WATER TEMP81°F+4.2°F in 12 daysColorado River near Ballinger, TX · 92 mi
POOL LEVEL−31.4 ft−0.5 ft in 14 daysbelow normal pool
Measured Monday, September 14, 2026 · refreshed daily · the guide report reads these for you
Lake J. B. Thomas surveyed depth — open the app for the live, zoomable map
The fishery
Lake J. B. Thomas — Scurry & Borden Counties, TX. 7,600 acres, 63 ft at its deepest. Known for Colorado River Largemouth, Catfish & Crappie.
Species
Largemouth bass · White bass · Channel catfish · Flathead catfish · Blue catfish · White crappie
On BassHawk
Everything below points at one goal — finding the most, and the biggest, largemouth bass on Lake J. B. Thomas.
Depth contoursSurvey-grade bathymetry with depth labels that adjust to today's pool level.
Daily guide reportA fresh report for Lake J. B. Thomas 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.
Submerged structureMapped points, humps, ledges, creek channels, and standing timber to fish by depth band.
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.
3named creek channels
What a guide report looks like
A complete, real report for Lake J. B. Thomas — nothing held back. It ran on that day's conditions; open the app for today's.
SAMPLE GUIDE REPORT · TUESDAY, AUGUST 18, 2026
Extreme heat has bass deep and sluggish. Hunt the channel edges and main-lake ledges in 20-30 feet before dawn and after dusk.
WATER 100°FAIR 98°FWIND 6 MPHSEASON SUMMERPOOL -30.4 FT
Water is running 100 degrees and the lake is sitting 30 feet below normal pool, which concentrates bass on deep structure and makes them lethargic during daylight. This lake doesn't stack bass on cover the way most Texas lakes do. It's primarily rock with limited vegetation, so fish roam and suspend along channel edges, drop-offs, and main-lake breaks, following the big gizzard shad that make up the forage base. At this water temperature, bass are purely survival mode during the heat of the day. They hunker down in the deepest available water with better oxygen and move shallow only at dawn and dusk when the sun can't bake them. The pressure is dropping, which normally fires them up, but that effect gets buried under the heat stress. You're looking at a short, intense bite window at both ends of the day. During the brutal midday hours, forget the shallow water entirely and focus on precise vertical presentations on the deep breaks if you're equipped with sonar.
The day's game plan
EARLY MORNING · 7:10 AM to 8:30 AM
Channel swing ledges and inside main-lake points in 18-26 feet, positioned on the hard-bottom breaks where gizzard shad stage before moving into deeper water
5-inch green pumpkin shaky head with 3/16 oz jighead, rigged on a 7-foot medium-light rod with 8-pound fluorocarbon. Drag it slowly along the ledge, pause every 4 feet and let it sit for 3-5 seconds. Work the bait vertically in the first 10 minutes as fish transition from night-feeding.
Bass slide up to the channel and ledge breaks at first light when the surface is still cool enough to hunt. The drop-off gives them an escape route to deep water, and the big shad are moving through the same breaks. Green pumpkin blends into the muddy water but remains visible to a bass hunting low-light structure. A shaky head keeps the bait in the strike zone longer than a swimbait would.
MORNING · 8:30 AM to 11:00 AM
Main-lake points and secondary ledges in 20-28 feet, edges where the bottom drops from 15 feet to 25 feet, with attention to any hard-bottom transitions
1/2 oz lipless crankbait in chartreuse or dark green, cast parallel to the drop-off and retrieved at a steady medium pace with pauses. Work 20-30 yards of ledge before moving. Use 12-pound braid and a 2-foot fluorocarbon leader.
Morning light pushes fish to the outside edge of the point or ledge, still accessible but deeper than the break itself. The crankbait triggers reaction strikes on suspended fish. Chartreuse cuts the murky water and the vibration pulls fish to the bait without requiring them to chase far. The lake's rock bottom and lack of dense cover means fish key on depth changes, not cover piles.
MIDDAY · 11:00 AM to 4:00 PM
Deepest main-lake channels, humps, and drop-offs in 28-35 feet with forward-facing sonar to locate individual suspended fish
3/8 oz vertically jigged drop shot rig with a 4-inch white or chartreuse finesse worm on a #1 drop-shot hook, 12-18 inches above a 1/4 oz weight. Work baits within 3-5 feet of sonar targets, jigging subtly rather than aggressively.
At 100 degrees, bass are deep and stationary during the heat. They suspend over the deepest water available, following the bait schools. Without sonar, this period is nearly impossible and usually a waste of time. With forward-facing sonar, you can place a bait within feet of an individual fish. The drop shot keeps the worm in the exact zone without drifting. Vertical jigging triggers a lazy strike from lethargic fish better than a horizontal presentation.
LATE AFTERNOON · 4:00 PM to 6:00 PM
Main-lake ledges and channel transitions at 22-28 feet, the same breaks you fished in the morning but repositioned on the outside edge of the structure as afternoon shadows lengthen
1/2 oz chatterbait in chartreuse or white, retrieved slowly with short rod twitches to keep the blade beating steadily. Cover water deliberately, checking each ledge section for suspended or positioned fish.
As the sun angle drops, the deepest part of the structure offers slight relief and bass begin to stir. The blade chatter creates vibration that travels through the murky water and pulls fish to the lure. By 4 PM you'll often see a brief resurgence in feeding as fish sense the end of the heat stress. The slow, methodical retrieve prevents spooked fish on shallow water.
EVENING · 6:00 PM to 8:00 PM
Channel swings, inside bends of the channel where current breaks form, and the first shallow shelf that connects to deep water, depths 12-20 feet
4-inch junebug or black finesse worm on a 1/8 oz Texas-rigged bullet, cast to the channel edge and worked on a 5-second fall with slow bottom drags and pauses. Use 8-pound fluorocarbon for sensitivity.
As water temperature begins to drop with approaching sunset, bass move shallower to hunt. The channel swing creates a natural staging area where bait flows through and bass position to intercept. The darker colors (junebug, black) create silhouettes in low light and draw strikes from feeding fish. The slow fall-and-pause mimics natural baitfish behavior and gives sluggish fish time to react.
DUSK · 8:00 PM to 9:15 PM
Shallow flats adjacent to channel drop-offs in 6-12 feet, hard-bottom areas with scattered rock that connect to deeper water within 50 yards
5-inch green pumpkin or black shad pattern swimbait on a 3/16 oz underspin head, cast and retrieved at a steady medium pace with occasional pauses. Work the flats parallel to the deep-water access point.
Dusk is the second feeding window. Bass are more aggressive as the water temperature stops climbing and begin to hunt actively. The shallower structure adjacent to deep water is the highway bass use to move from deep daytime sanctuaries to night feeding zones. A shad-pattern swimbait matches the lake's gizzard shad forage profile. The slight pause prevents overshooting lethargic fish that are just beginning to feed.
NIGHT · 9:15 PM to 7:10 AM (next day)
Shallow rock banks and channel margins in 4-8 feet, any hard-bottom area within 20 yards of deep-water access; work slowly and methodically
3/4 oz black spinnerbait with Colorado blade, cast and retrieved on a slow, steady path with occasional twitches. Night fishing here is low-probability but high-reward if you connect.
After cooling below the worst of the heat, bass move shallow to hunt forage in darkness. The black spinnerbait creates maximum vibration and silhouette, which bass hunt by feel rather than sight in muddy water. Colorado blades thump loudly through the turbidity. Most anglers leave the water at dark, but a night session can produce the lake's biggest fish when thermal stress is minimal.
Where to fish
Main-Lake Channel Swings — 20-30 feet on the break, 35+ feet in the deepest trough · Hard-bottom drop-offs where inside channel bends create current breaks and structure edges; transition zones from shallow to deep Channels serve as highways. Bass position on the edges where forage flows and deep-water escape is immediate. The lake's rock substrate and lack of cover means fish key on contour changes.
Secondary Points and Ledges — 18-26 feet on the face, 12-18 feet on the shelf · Hard-bottom drop-offs connecting main lake to secondary arms; any ridge or break where depth changes 8-12 feet within 30 yards Points funnel bass movement between shallow and deep water and create natural ambush zones. With low pool and turbid water, defined breaks become the only reliable landmark.
Main-Lake Humps and Drops — 25-35 feet overall, working the 20-28 foot contour line · Isolated high-spots on the lake floor with hard bottom; deeper water immediately adjacent for bass to drop into when thermal stress peaks Humps concentrate baitfish, especially gizzard shad, during the heat. Bass use them as feeding stations on the shelf and drop into 30+ feet for temperature relief during the hottest hours.
What to throw
Shaky Head Worm — 5 in · Green pumpkin · 3/16 oz (Early morning and late afternoon on main-lake breaks) Dragged slowly along ledge with 3-5 second pauses every 4 feet; work ledge edges in 18-26 feet
Lipless Crankbait — 2.5 in · Chartreuse · 1/2 oz (Mid-morning on main-lake points and ledge edges) Cast parallel to drop-off and retrieve at steady medium pace with pauses; cover 20-30 yards per cast
Drop Shot Rig — 4 in · White or chartreuse finesse worm · 1/4 oz drop weight, #1 hook (Midday in 28-35 feet over main-lake channels and humps when sonar is available) Vertically jigged 12-18 inches above the weight, worked within 3-5 feet of sonar targets in deep water
Chatterbait — 1/2 in blade · Chartreuse or white · 1/2 oz (Late afternoon on main-lake ledges at 22-28 feet) Slow retrieve with short rod twitches to keep blade beating; cover structure deliberately
Texas Rigged Finesse Worm — 4 in · Junebug or black · 1/8 oz bullet weight (Evening as sun angle drops and fish begin to stir) Cast to channel edge, work on 5-second fall with slow bottom drags and pauses; 8-pound fluorocarbon for sensitivity
How to work it
Ledge Dragging — Early morning and late afternoon when bass position on the break · Main-lake ledges and inside bends of the channel in 18-28 feet Cast parallel to a drop-off edge and drag a shaky head or finesse worm slowly along the contour, pausing every 4 feet to let the bait settle
Vertical Jigging with Sonar — Midday when heat stress forces fish into the deepest water · Deep main-lake channels, humps, and drop-offs in 28-35 feet Use forward-facing sonar to locate suspended fish, then place a drop-shot rig or light jig directly above the target and jig subtly with short rod twitches
Vibration Retrieves — Morning through late afternoon on any structured break · Ledges, points, and channel transitions in 20-28 feet Cast crankbaits, chatterbaits, or spinnerbaits and retrieve at a steady pace with irregular pauses and twitches to maximize blade and body vibration through the turbid water
Pro tips
This lake fishes completely different from shallow Texas reservoirs. Forget shoreline and shallow cover. The bass here follow bait and deep-structure lines, not wood or grass. Invest in a forward-facing sonar unit if you plan to fish the midday heat seriously. Without it, you're essentially blind during the 11 AM to 4 PM window.
The gizzard shad are big here, which is why the bass grow oversized despite the harsh conditions. Match that forage. Don't go smaller than 4 inches on a finesse worm or less than 2.5 inches on a crankbait. Oversized forage keys in bigger fish.
Low pool has compressed the structure and concentrated the fish, but it also means less actual bottom to search. Learn the main-lake channel route and the few reliable ledges and points. Repetition on the same breaks day after day will dial you in faster than covering new water.
If conditions change
If a weather front blows through and pressure rises sharply after dropping like this, expect a brief feeding burst before the high-pressure sluggish pattern takes hold. Fish it hard right at the pressure transition, roughly 4-6 hours before the front passes. After the high-pressure system locks in, fish will tighten even more on deep structure; downsize everything by 25 percent and fish within 6 inches of known breaks. If afternoon cloud cover rolls in and blocks direct sun, the shallow bite can extend an extra 30-45 minutes past normal dusk, so stay out longer. If the wind picks up from the south or southwest, shallow-water oxygen improves and morning and evening bites can expand into the 11 AM to 3 PM window more than usual; capitalize by fishing the channel shallows during midday heat. If water clarity suddenly improves after rain upstream, shift to natural shad colors and smaller baits; if it muddies further, upsize everything 25 percent and rely entirely on vibration and dark silhouettes.