Gulf of Mexico · ChartNav curated ground

Florida Middle Grounds

A limestone reef system off Florida's Big Bend — gag and red grouper, mangrove snapper and amberjack on the ledges.

SST 85°F · charted 60 ft · NOAA-designated EFH here
NOAA ENC + BlueTopo seafloor relief — the same layers as pressing Fish in the app. Toggle layers above; tap the map to pan.
Open on the live nautical chart →

What's biting here — right now

Prime water for Crevalle Jack & Great Barracuda — 85°F on top, water moving now.
Today's bite
5:55 PM – 10:49 PM · dusk bite
Days ahead
Today GO 7 kt Mon GO 9 kt Tue OK wind 13 kt Wed ROUGH wind 21 kt Thu OK wind 15 kt
Crevalle Jack identification illustration
In season (Oct)
SST 85°F in the prime band (70–86°F prime)
Charted 123 ft suits this species (7–131 ft ideal)
Throw a big topwater into a busting school and hold on — pound for pound the hardest pull inshore.
Great Barracuda identification illustration
In season (Oct)
SST 85°F in the prime band (73–86°F prime)
Charted 123 ft suits this species (10–164 ft ideal)
Better near wrecks and reef edges if you can find it
A fast tube lure ripped across the flat or the wreck — they will not chase anything slow.
Mangrove Snapper identification illustration
In season (Oct)
Bottom temp 85°F at 131 ft in the prime band (72–86°F prime)
Charted 123 ft suits this species (10–131 ft ideal)
In NOAA-designated Essential Fish Habitat — expected here even where structure isn't charted
Light fluorocarbon and small live baits around any structure; chum heavily.
Blacktip Shark identification illustration
In season (Oct)
SST 85°F in the prime band (72–86°F prime)
Charted 123 ft suits this species (10–197 ft ideal)
No strong temperature break nearby
Cut bait in a slick off the beach or the bar — the one that jumps and spins when it eats.
Goliath Grouper identification illustration
In season (Oct)
Bottom temp 85°F at 131 ft in the prime band (70–86°F prime)
Charted 123 ft suits this species (20–148 ft ideal)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Catch and release only — heavy tackle over wrecks and bridge pilings, and get them back down fast.
Mahi-Mahi identification illustration
In season (Oct)
SST 85°F in the prime band (75–86°F prime)
Charted 123 ft suits this species (131–6560 ft ideal)
No strong temperature break nearby
Better near weedlines and floating debris, not bottom structure if you can find it
Run and gun to weedlines, boards and birds; pitch ballyhoo or jigs.
King Mackerel identification illustration
In season (Oct)
SST 85°F workable (70–84°F prime)
Charted 123 ft suits this species (39–197 ft ideal)
No strong temperature break nearby
Better near structure or edges if you can find it
Slow-troll live bait over reefs, wrecks and bait schools; wire leader.
Atlantic Spadefish identification illustration
In season (Oct)
Bottom temp 85°F at 131 ft workable (68–84°F prime)
Charted 123 ft suits this species (20–131 ft ideal)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Small jellyball or clam bits on light tackle right against a wreck, tower or buoy chain.
Lane Snapper identification illustration
In season (Oct)
Bottom temp 85°F at 131 ft workable (72–84°F prime)
Charted 123 ft suits this species (26–197 ft ideal)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Small baits on light bottom rigs over any hard patch — the reliable filler on a reef trip.
Yellowtail Snapper identification illustration
In season (Oct)
Bottom temp 85°F at 131 ft workable (72–84°F prime)
Charted 123 ft suits this species (26–197 ft ideal)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Long fluorocarbon leader drifted well back in a chum slick — heavy gear and they simply will not eat.
Cobia identification illustration
In season (Oct)
SST 85°F workable (70–84°F prime)
Charted 123 ft suits this species (26–131 ft ideal)
Better near structure or edges if you can find it
Sight-cast jigs or eels to fish on buoys, rays, wrecks and channel markers.
African Pompano identification illustration
In season (Oct)
Bottom temp 85°F at 131 ft workable (72–84°F prime)
Charted 123 ft suits this species (66–262 ft ideal)
No charted structure within 250 m — scored cautiously (charts don't mark all hard bottom)
Live bait or jigs deep over wrecks and reef ledges; they hang in small groups on the up-current side.
Live habitat-envelope scoring at this exact cell — SST, charted depth, charted structure and seabed, NOAA-designated habitat. The same engine and cards as tapping the spot in Fish mode.

Today's bite windows — moving water

Moving water right now — building
5:55 PM – 10:49 PM
peak 8:22 PM · flood
1:23 AM – 2:47 AM
peak 2:05 AM · ebb
4:32 AM – 7:25 AM
peak 5:59 AM · flood
Derived from the tide at St. George Island, East End — flow peaks near mid-tide, goes slack near high and low. No tidal-current station within 10 nm of this spot. Timing only — it never changes the habitat scores above.

The week ahead — full forecast

Drag the graph for any hour — wind, gusts, seas & period, rain, predicted current. The pale band around the wind line is model disagreement; the day chips carry the verdict and the number that caused it; the moons are real phases.
Sea state right now — every train
Combined
2.4 ft @ 5 s
from S
Wind sea
0.0 ft
Swell 1
2.4 ft @ 5 s
from S
Swell 2
0.3 ft @ 5 s
from WSW
Swell 3
0.0 ft
Buoy check — 42036 (WEST TAMPA - 112 NM WNW of Tampa, 10.8 nm): 5.8 kt observed vs 7 kt forecast, seas 2.6 ft vs 2.4 ft · model agrees with the water
Wind: NBM 2.5km direct (68 h) → GFS 0.25° direct (4 h) → Open-Meteo blend (96 h) · Waves: GFS-Wave 0.16° (12Z cycle), full train decomposition · Confidence band: GEFS ensemble spread · Bite windows: CO-OPS tidal predictions

Water temperature — last 10 weeks

2026-07-25 → 2026-10-03 · 85–87°F

Best months here

J
F
M
A
M
J
J
A
S
O
N
D
Species in season by month for Gulf of Mexico (from the knowledge base). In season now: Atlantic Croaker, Black Drum, Red Porgy, Southern Flounder, Cobia, Crevalle Jack, Florida Pompano, Permit, Red Drum (Redfish), Common Snook.
Other grounds in Gulf of Mexico
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