Marine Weather and Tide Forecast for Attu Station, AK
 | Sunrise 5:52 AM Sunset 6:49 PM Moonrise 10:53 PM Moonset 6:08 AM |
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
No data
7 Day Forecast for Marine Location Near Attu Station, AK
NEW! Add second zone forecast
FXAK68 PAFC 150039 AFDAFC
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 439 PM AKDT Sat Jun 14 2025
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3: Today through Monday)...
Clear skies leading to warm and dry conditions persisting across Interior Southcentral. Coastal Southcentral continues to see a steady layer of marine stratus blocking out the sun, with periods of mist and drizzle. Interior Southcentral may see isolated areas of showers late this afternoon due to some cumulus development.
High temperatures in many areas of Southcentral have reached the 70 degree mark, however some locations closer to bodies of water are expectedly remains relatively cooler. Locations like Seward, Whittier, and Valdez to expect a relatively consistent sea-breeze picking up the the afternoon hours, given the strong diurnal heating trend. Additionally, over interior Southcentral haze originating from Canadian wildfires will become increasingly apparent. Strongest over the Copper River Basin, the Mat-Su Valleys, and visible in Anchorage, this haze will appear brownish and slightly reduce visibility along the horizon.
The weather pattern late this weekend into early next week will remain mostly consistent to the current pattern. Upper-level flow and the arrival of more favorable convective patterns, including the entrance of several shortwaves from the east. This creates a favorable pattern for showers and thunderstorms with each passing trough. As such, thunderstorm potential similarly is expected to rise early next week, currently expected mostly for the Susitna Valley, the Copper River Basin, with elevated thunderstorm initiation off of the Talkeetna Mountains becoming increasingly likely given the quick deterioration of mountain snowpack.
-CL
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 439 PM AKDT Sat Jun 14 2025
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3: Today through Monday)...
Clear skies leading to warm and dry conditions persisting across Interior Southcentral. Coastal Southcentral continues to see a steady layer of marine stratus blocking out the sun, with periods of mist and drizzle. Interior Southcentral may see isolated areas of showers late this afternoon due to some cumulus development.
High temperatures in many areas of Southcentral have reached the 70 degree mark, however some locations closer to bodies of water are expectedly remains relatively cooler. Locations like Seward, Whittier, and Valdez to expect a relatively consistent sea-breeze picking up the the afternoon hours, given the strong diurnal heating trend. Additionally, over interior Southcentral haze originating from Canadian wildfires will become increasingly apparent. Strongest over the Copper River Basin, the Mat-Su Valleys, and visible in Anchorage, this haze will appear brownish and slightly reduce visibility along the horizon.
The weather pattern late this weekend into early next week will remain mostly consistent to the current pattern. Upper-level flow and the arrival of more favorable convective patterns, including the entrance of several shortwaves from the east. This creates a favorable pattern for showers and thunderstorms with each passing trough. As such, thunderstorm potential similarly is expected to rise early next week, currently expected mostly for the Susitna Valley, the Copper River Basin, with elevated thunderstorm initiation off of the Talkeetna Mountains becoming increasingly likely given the quick deterioration of mountain snowpack.
-CL
.SHORT TERM FORECAST SOUTHWEST ALASKA/BERING SEA/ALEUTIANS (Days 1 through 3: This afternoon through Tuesday afternoon)...
Unsettled weather continues for Southwest Alaska and the Bering Sea/Aleutian Islands, albeit less active than what we've seen in recent days. The primary weather hazards to watch for will be hot temperatures and afternoon/evening thunderstorms for Southwest Alaska. For the Bering Sea and Aleutian Islands, a North Pacific low moving towards the Eastern Aleutians and Alaska Peninsula tonight will bring winds to gale force, as well as periods of moderate to heavy rain. Otherwise, scattered rain showers and winds up to about 20-30 kt for the remainder of the Bering Sea and Aleutian Islands.
The primary forecast challenge continues to be thunderstorm potential for interior Southwest Alaska. Max temperatures in the mid to high 70s over Kuskokwim Valley will provide good surface- based instability for robust convection. The difficulty is ascertaining where the lift will be; easterly shortwaves propagate off an upper low in the Gulf, but models continue to struggle with the location of these waves. This is especially the case for Tuesday afternoon, when 12z models differed over whether the best forcing would be over Kuskokwim Valley or further south in interior Bristol Bay. Generally, if you'll be outdoors in interior Southwest Alaska the next few days, be prepared for isolated to scattered thunderstorms.
-KC
.LONG TERM FORECAST (Days 4 through 7: Wednesday through Saturday)...
Forecast models continue to agree with the overall development and changes to the broad scale features across the region. A closed upper level low over the Southern Gulf of Alaska drifts Southeastward through Thursday. Greatest uncertainty rests with the transient systems rotating around the closed upper level low across the Aleutians and Bering. The body of the upper low is expected to sag closer to the Aleutians through the forecast period. A number of shortwaves along the Eastern flank help erode an upper ridge that forms through the Central Mainland, linking with a closed center over the Arctic coast. the ridge continues to edge towards the Canadian border through the weekend.
Scattered showers and possible thunderstorms will be the order of the day over Interior Alaska, mostly South of the Alaska Range through Friday. A somewhat strong North Pacific surface low Wednesday spreads its locally moderate rain and gale force winds with high end gale force gusts across the Central Aleutians for Thursday. As the low tracks over the Alaska Peninsula and Bristol Bay, then back into the Central Bering, its front brings locally moderate rain and gusty winds over the Northern Bering into Western Alaska, AKPEN, Kodiak Island and across the Southcentral coasts through the weekend.
- Kutz
AVIATION
PANC...VFR conditions persist through the TAF period. Breezy south-to-southeasterly winds will veer to more southwesterly and decrease by this evening, but periods of southeasterly winds may still be able to work back in. Winds will remain dominantly out of the south to southeast Sunday.
Unsettled weather continues for Southwest Alaska and the Bering Sea/Aleutian Islands, albeit less active than what we've seen in recent days. The primary weather hazards to watch for will be hot temperatures and afternoon/evening thunderstorms for Southwest Alaska. For the Bering Sea and Aleutian Islands, a North Pacific low moving towards the Eastern Aleutians and Alaska Peninsula tonight will bring winds to gale force, as well as periods of moderate to heavy rain. Otherwise, scattered rain showers and winds up to about 20-30 kt for the remainder of the Bering Sea and Aleutian Islands.
The primary forecast challenge continues to be thunderstorm potential for interior Southwest Alaska. Max temperatures in the mid to high 70s over Kuskokwim Valley will provide good surface- based instability for robust convection. The difficulty is ascertaining where the lift will be; easterly shortwaves propagate off an upper low in the Gulf, but models continue to struggle with the location of these waves. This is especially the case for Tuesday afternoon, when 12z models differed over whether the best forcing would be over Kuskokwim Valley or further south in interior Bristol Bay. Generally, if you'll be outdoors in interior Southwest Alaska the next few days, be prepared for isolated to scattered thunderstorms.
-KC
.LONG TERM FORECAST (Days 4 through 7: Wednesday through Saturday)...
Forecast models continue to agree with the overall development and changes to the broad scale features across the region. A closed upper level low over the Southern Gulf of Alaska drifts Southeastward through Thursday. Greatest uncertainty rests with the transient systems rotating around the closed upper level low across the Aleutians and Bering. The body of the upper low is expected to sag closer to the Aleutians through the forecast period. A number of shortwaves along the Eastern flank help erode an upper ridge that forms through the Central Mainland, linking with a closed center over the Arctic coast. the ridge continues to edge towards the Canadian border through the weekend.
Scattered showers and possible thunderstorms will be the order of the day over Interior Alaska, mostly South of the Alaska Range through Friday. A somewhat strong North Pacific surface low Wednesday spreads its locally moderate rain and gale force winds with high end gale force gusts across the Central Aleutians for Thursday. As the low tracks over the Alaska Peninsula and Bristol Bay, then back into the Central Bering, its front brings locally moderate rain and gusty winds over the Northern Bering into Western Alaska, AKPEN, Kodiak Island and across the Southcentral coasts through the weekend.
- Kutz
AVIATION
PANC...VFR conditions persist through the TAF period. Breezy south-to-southeasterly winds will veer to more southwesterly and decrease by this evening, but periods of southeasterly winds may still be able to work back in. Winds will remain dominantly out of the south to southeast Sunday.
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
Link to 1 hour of 5 minute data for PASY
Terminal Aerodrome Forecast (TAF) for PASY
Wind History Graph: ASY
(wind in knots)
GEOS Local Image of Puerto Rico
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