Gulf of Alaska Buoys Log 40–42°F as Spring Halibut Season Kicks Into Gear

What's Biting

What's Next

With surface temps sitting at 40–42°F across the Gulf and winds measured at a modest 4–8 m/s at the three offshore buoys, conditions lean favorable for getting offshore this week. NOAA buoy 46080 is running 2 degrees warmer than buoys 46001 and 46066 — a small but meaningful differential that can concentrate baitfish and, by extension, the predators feeding on them. If that warmth is building rather than simply holding, a gradual push toward the mid-40s over the coming days is plausible, which would accelerate nearshore salmon staging and improve feed windows across the board.

The waning gibbous moon means tidal swings are still significant but easing toward neap conditions heading into the weekend. For halibut and bottom species, plan around tidal transitions — roughly the hour before and after the major shift — as slack water on soft-bottom structure typically produces the most consistent hookups. When current runs hard, fish tend to drop off the feeding edge and become harder to target.

For nearshore Chinook salmon, early morning windows will outperform midday while water temps stay cold. Typical spring behavior in the Gulf puts fish tight to bottom contours in 60–120 feet of water. Trolling with large spoons or cut herring rigs is the standard approach at this time of year; watch for bait arches on the sounder as the clearest indicator of where fish are holding rather than relying on surface signs alone.

Lingcod will likely stay active on any structure with vertical relief — rocky pinnacles, reefs, and canyon edges in the 80–200-foot range. With temps edging toward 42°F, they're feeding aggressively enough to hit large jigs worked slowly along bottom. Pacific cod are similarly active on softer bottom using the same slow-jig approach.

No wave height data was available from any of the three buoys at time of publication — verify sea state with the local marine forecast before departure. Air temps near 41°F at buoy 46001 mean windchill at offshore speeds will feel significantly colder; layering and foul-weather gear are not optional.

Context

Early May in the Gulf of Alaska typically marks the transition from late-winter holding patterns to the onset of the most productive nearshore and offshore fishing of the year. Surface temps in the low 40s are normal for this period — the Gulf does not warm quickly, and mid-40s readings often don't arrive until late May or early June. By that measure, current readings at 40–42°F are right on pace, with no signal of unusual warmth or cold anomaly.

Halibut season in the Gulf of Alaska traditionally ramps up through May as charter effort climbs toward its summer peak. Pacific halibut are bottom-dwelling ambush predators that don't depend on warm surface temps to feed; early May is a reliable window to target them before summer pressure intensifies. Chinook salmon in the Gulf tend to concentrate along coastal shelves in spring before dispersing for open-water summer feeding. The early May staging period is a traditional target window for nearshore trolling — anglers who wait for surface temps to warm noticeably often miss the best of the Chinook bite.

Lingcod and Pacific cod are both year-round residents of Gulf structure but become most accessible to recreational anglers as spring conditions stabilize and sea state moderates. Rockfish — a broad category of structure-oriented species — are similarly predictable on the same rocky-bottom and reef habitat throughout spring.

This week's national angler-intel feeds — including Saltwater Sportsman, Field & Stream, Sport Fishing Mag, Anglers Journal, Coastal Angler Magazine, and Salt Strong — contained no Gulf of Alaska-specific reports. No direct season-versus-history comparison from contemporaneous testimony is available. The historical framing above is grounded in established seasonal norms for the region; if localized charter or shop reports surface in coming days, they will sharpen the read on whether this spring is running early, late, or on schedule.