Marine Weather and Tide Forecast for Port Graham, AK

.SHORT TERM FORECAST SOUTHWEST ALASKA/BERING SEA/ALEUTIANS (Days 1 through 3)...

Showery conditions will continue across Southwest Alaska, Alaska Peninsula and portions of the central/eastern Bering Sea today as residual low pressure lingers over the area. Rain is expected to be the primary precipitation type during the daytime hours, however, overnight temperatures may dip below freezing, allowing for any precipitation to fall as snow or a rain/snow mix.
Small craft winds will persist along the eastern Bering and southern Alaska Peninsula (including waters south) as cold air advection remains in place today. Benign conditions expected through most of the weekend for Southwest Alaska until the next front moves in Sunday afternoon.

A gale force front tracking through the Western Bering Sea and Aleutians is expected to continue toward the Central Bering tonight into Saturday morning where it will weaken nearly in place.
Behind it, a developing compact low from the North Pacific will track northeast, passing the Adak and Atka area Saturday morning.
As it catches up to the degrading front, the features will merge in the Central Bering and continue to press the weakening ridge downstream toward Southwest Alaska. Saturday will be relatively quiet for Southwest Alaska, but by Sunday afternoon, the Bering system will reach the Southwest coast where rain, snow, and south to southeasterly flow returns.

KM

.LONG TERM FORECAST (Days 4 through 7, Monday through Thursday)...

By Monday morning, there is fair confidence (60 to 70%) for a low pressure system, with a depth near 995 mb, to be moving inland into the Kuskokwim Delta, potentially bringing strong onshore winds and wave action to the coast. Given southerly flow continuing to bring in warmer air, rainfall is expected with this system. Additionally, the front of this low is set to break off into a triple-point low spinning up in the western Gulf of Alaska by Monday morning, pushing inland to Southcentral through Monday bringing similar conditions to the northern Gulf Coast.

Confidence in increasing with regards to the progression of a stronger low moving into our area south of the Alaska Peninsula by Tuesday morning. By Tuesday morning, this low may be near 960 mb and would work to drive stronger winds along the Alaska Peninsula as well as bring a large swath of rainfall across the area. By Tuesday night/Wednesday morning moderate model agreement suggests the progression of this low pressure system into the northern Gulf of Alaska bringing it's round of active weather to the Southcentral coastline. There is poor model agreement regarding the progression of the low beyond Wednesday, with several solutions weakening the low in the northern Gulf, while others hold on to it's strength. However, generally unsettled weather expected for the region through the long-term period.

AVIATION

PANC...VFR conditions are expected to continue through the period.
Mid and high cloud cover will increase this morning keeping fog and low clouds chances in check. A few showers may work over the mountains and through the terminal, but any rainfall should be light with little to no reduction in visibility. Winds will be under 10 kts and generally out of the north.