Sunrise 5:54 AM   Sunset 6:39 PM Moonrise 4:48 AM   Moonset 11:33 PM

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PKZ176 SEguam Island To Adak Pacific Side- 347 Am Akst Wed Mar 8 2023
.small craft advisory through Thursday - .
Today - N wind 25 kt. Seas 8 ft.Tonight - N wind 25 kt. Seas 10 ft. Rain.Thu - NE wind 25 kt. Seas 10 ft. Rain and snow.Thu night - NE wind 20 kt. Seas 10 ft.Fri - NE wind 20 kt. Seas 9 ft.Sat - NE wind 15 kt. Seas 8 ft.Sun - NE wind 30 kt. Seas 8 ft.

PKZ100
No data

FXAK68 PAFC 110042 AFDAFC

Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 442 PM AKDT Fri May 10 2024

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...

A large vertically stacked low situated over the southern Alaska Peninsula looks to push towards southern Alaska over the next couple of days. The storm system will be slow moving, with the low drifting into the western Gulf Saturday afternoon. A series of short-waves rounding the low will provide plenty of lift and produce some hefty precipitation totals for Kodiak Island and the coastal zone of Southcentral. Drier conditions for interior Southcentral as well as Anchorage and western Kenai Peninsula. Snow is still possible at higher elevations.

Marginally warmer temperatures are expected across much of Southcentral Saturday and Sunday, with values reaching into the mid-50's for interior Southcentral. Gusty winds will continue across the Kenai Peninsula and eastern Turnagain Arm through Saturday. Southeasterly gap winds will slowly diminish through tonight for the Copper River and Knik River Valley.

The low weakens by Sunday and the upper level trough will lift northwards across Southcentral. Steady moderate to heavy precipitation will fade to lighter rain showers, primarily around Prince William Sound and the north Gulf coast.

.SHORT TERM FORECAST SOUTHWEST ALASKA, THE BERING SEA AND THE ALEUTIANS (Days 1 through 3)...

The weakening vertically stacked low over the Alaska Peninsula continues to move eastward. Moisture from the Gulf of Alaska will be carried in with the persistent southerly flow, providing rain and wet snow for much of Southwest. This will continue to occur through Sunday morning before the low further dissipates and moves into the gulf. Some breaks in the clouds and shift to southerly flow will help bring temperatures back up closer to normal for this time of year. Highs should be up closer to the 50s inland with coastal areas getting into the 40s. The increased temperatures will support increased instability which could result in showers to occur in the late afternoon hours tomorrow and Sunday. Gusty conditions on the north and west side of the low over the Bering will continue as well, producing gale force gusts between the Pribilofs and AKPen.

Over the Aleutians, another low currently located south of Shemya will brush by the central Aleutians through Sunday morning. Much of the impacts will remain either over the Aleutians or for the North Pacific, with small craft winds and gale force gusts forecast. Precipitation in the form of a rain/snow mix or all rain is expected as the low moves eastward, with high temperatures getting into the upper 30s or low 40s. The track of the low continues to move slightly south over the last few model runs, bus some impacts over the Aleutian are still likely. The next system will start to enter the western Bering midday Monday, with widespread precipitation and gustier winds possible as the front of the low moves eastward.

-BS

.LONG TERM FORECAST (Days 4 through 7: Tuesday through Friday)...

The Alaska weather map opens with an elongated and somewhat fragmented positively tilted trough extending from the Arctic over the Eastern Mainland. The trough then curves back to the South of the Alaska Peninsula. The Northern portions drifts into the Canadian Provinces through Wednesday, while the Southern portion links up with a second system moving out of the Russian Far East.
The trough becomes negatively for Thursday, with an increasing negative tilt through Friday. A ridge builds over the ALCAN border through Friday. Model agreement is good through midweek, but falls apart afterwards, as the flow pattern across the region weakens.

The extended forecast opens somewhat quietly as North Pacific low moves the active weather into Southeast Alaska. Locally heavy rain over Prince William Sound and the Copper River Basin dissipates Tuesday. In the far West, the Northern Kamchatka low and front brings gusty winds and precipitation starting as snow, but quickly changing to rain across the Aleutians and Bering. The front brings locally heavy precipitation over the Central and Eastern Aleutians, AKPEN and Western Alaska. Some of this will be mixed precipitation over Western Alaska into the Interior, and trailing through Wednesday before diminishing over the AKPEN Thursday. Locally heavy rainfall moves moves over Kodiak Island and Southcentral Alaska for Thursday and across Prince William Sound and Copper River Delta through Friday. Lesser amounts of rainfall from the South reaches the Alaska Range for Friday.

- Kutz

AVIATION

PANC...VFR conditions will persist through the TAF period.
Southeast winds out of Turnagain Arm will continue out ahead of a frontal system in the southwestern Gulf of Alaska. Winds peak later this this evening coincident with the greatest amount of instability present. Southeast winds may gust as high as 30 mph before the down inlet flow strengthens by the evening hours and persists into Saturday. This will help to keep the southeast winds over Turnagain Arm and out of the terminal with northerly winds prevailing this evening through Saturday. LLWS will likely develop later this evening as the winds over Turnagain Arm and the Anchorage Hillside remain southeasterly. The majority of precipitation will remain along the coast and the eastern facing slopes of the coastal mountain ranges due to the downslope drying effects of the southeasterly flow.

-CC

Massacre Bay
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Sat -- 02:48 AM HDT     2.93 feet Low Tide
Sat -- 03:32 AM HDT     Moonset
Sat -- 06:52 AM HDT     3.36 feet High Tide
Sat -- 07:34 AM HDT     Sunrise
Sat -- 09:46 AM HDT     Moonrise
Sat -- 03:28 PM HDT     -1.51 feet Low Tide
Sat -- 11:13 PM HDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Massacre Bay, Attu Island, Alaska, Tide feet

Chichagof Harbor
Click for Map
Sat -- 03:04 AM HDT     3.19 feet Low Tide
Sat -- 03:33 AM HDT     Moonset
Sat -- 07:05 AM HDT     3.66 feet High Tide
Sat -- 07:34 AM HDT     Sunrise
Sat -- 09:45 AM HDT     Moonrise
Sat -- 03:44 PM HDT     -1.65 feet Low Tide
Sat -- 11:13 PM HDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION

Chichagof Harbor, Attu Island, Alaska, Tide feet

Full Color Weather Map

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