Bay temps hit 74 as fluke stack up in Moriches skinny water

The numbers tell the story this week — Great South Bay hit 74.2 degrees while the shelf sits at 67.7, creating a seven-degree thermal gradient that's acting like a bait magnet. That temperature differential is pulling everything from peanut bunker to sand eels into the back bay, and the fluke are following them into water so shallow you can watch the fish hit your jig.

I've been working the 3-to-8-foot zones east of the inlet, and the action has been steady on ultra-light setups with 1/4-ounce bucktails tipped with white Gulp. The key is reading the bottom contours — these fish are staging on the edges where the shallow flats drop into the channels. You can literally pitch to individual fish lying on the sand, especially on the incoming tide when the water clears up.

The inlet mouth continues to fire on the tide change, particularly the first hour of the outgoing. That's when the bay water starts draining and concentrates everything at the choke point. Green bucktails with a teaser rig about a foot above the sinker have been producing keepers in the 20-to-25-inch range. The weeds are still an issue in the main flow, so I've been working the edges where the current breaks.

What's interesting is how the thermal structure is setting up. The shelf stations are all reading 67-plus degrees — that's the magic number where canyon water starts to activate for offshore species. But here in the bay system, we're seeing that premium temperature driving a completely different dynamic. The warm water is holding bait tight to shore and keeping the fluke active in skinny water that most guys wouldn't even consider fishing.

The southwest wind pattern we've been seeing is actually helping the bite. That 260-degree flow at 13 knots is pushing surface water into the bay on the flood, which extends the incoming tide and gives you more time to work the productive water. The pressure has been steady around 1003 millibars — not the dramatic drops that shut down the bite, just consistent conditions that keep fish feeding.

Cupsogue Beach has been producing stripers in the surf, particularly at dawn when the bait gets pushed against the beach. The fish aren't huge — mostly schoolies in the 24-to-28-inch range — but they're consistent if you time it right with the tide. Fresh bunker chunks on fishfinder rigs work, but I've been having better luck with 6-inch white paddle tails on 3/4-ounce jigheads, working them slow in the wash.

The moon phase is working in our favor too. We're past the new moon spring tides that were flushing everything out of the system, and the moderate tidal range is letting bait settle in the productive zones. That's why the skinny water bite has been so consistent — the fish can hold in their preferred depth without getting blown out by extreme current.

Looking ahead, the thermal gradient should hold through the weekend as long as this southwest flow continues. The bay will stay warm, the shelf will stay cooler, and that temperature break will keep concentrating bait where we can reach it. If the wind shifts hard to the north, it could flip the script by pushing cooler water into the bay, but right now the pattern is locked in.

The key for the coming week is mobility. These fish are moving with the bait, and what produces at 7 AM might be dead by 9 AM. Keep your tackle light, your jigs small, and be ready to move when the bite shuts down. The fish are here — it's just a matter of staying on top of them as they follow the food around this dynamic system.