Marine Weather and Tide Forecast for Unalaska, AK
April 19, 2025 12:55 AM AKDT (08:55 UTC) Change Location
![]() | Sunrise 6:21 AM Sunset 9:35 PM Moonrise 2:16 AM Moonset 8:17 AM |
PKZ771 Unalaska Bay- 232 Pm Akdt Fri Apr 18 2025
Tonight - Variable wind less than 10 kt becoming S 10 kt after midnight. Seas 2 ft.
Sat - S wind 20 kt. Seas 3 ft. Rain.
Sat night - S wind 15 kt. Seas 2 ft. Rain.
Sun - SW wind 20 kt. Seas 2 ft.
Sun night - SW wind 10 kt. Seas 2 ft.
Mon - SW wind 20 kt. Seas 3 ft.
Tue - W wind 20 kt. Seas 3 ft.
Wed - SE wind 15 kt. Seas 3 ft.
PKZ700
No data
No data
7 Day Forecast for Marine Location Near Unalaska, AK

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Dutch Harbor Click for Map Sat -- 02:09 AM AKDT 3.61 feet High Tide Sat -- 05:15 AM AKDT Moonrise Sat -- 07:54 AM AKDT Sunrise Sat -- 11:18 AM AKDT Moonset Sat -- 06:00 PM AKDT -0.29 feet Low Tide Sat -- 10:16 PM AKDT Sunset Tide / Current data from XTide NOT FOR NAVIGATION |   |
Dutch Harbor, Alaska (expired 1988-12-31), Tide feet
12 am |
3.2 |
1 am |
3.5 |
2 am |
3.6 |
3 am |
3.6 |
4 am |
3.4 |
5 am |
3.3 |
6 am |
3.1 |
7 am |
3.1 |
8 am |
3.1 |
9 am |
3 |
10 am |
3 |
11 am |
2.8 |
12 pm |
2.5 |
1 pm |
2 |
2 pm |
1.4 |
3 pm |
0.8 |
4 pm |
0.2 |
5 pm |
-0.2 |
6 pm |
-0.3 |
7 pm |
-0.1 |
8 pm |
0.3 |
9 pm |
0.9 |
10 pm |
1.6 |
11 pm |
2.3 |
Kisselen Bay Click for Map Sat -- 04:19 AM AKDT 3.22 feet Low Tide Sat -- 05:14 AM AKDT Moonrise Sat -- 05:48 AM AKDT 4.11 feet High Tide Sat -- 07:55 AM AKDT Sunrise Sat -- 11:20 AM AKDT Moonset Sat -- 02:57 PM AKDT -0.40 feet Low Tide Sat -- 10:16 PM AKDT Sunset Sat -- 11:43 PM AKDT 4.76 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
Kisselen Bay, Beaver Inlet, Unalaska Island, Alaska, Tide feet
12 am |
4.7 |
1 am |
4.3 |
2 am |
3.7 |
3 am |
3.4 |
4 am |
3.2 |
5 am |
3.6 |
6 am |
4.1 |
7 am |
4 |
8 am |
3.8 |
9 am |
3.4 |
10 am |
2.7 |
11 am |
1.9 |
12 pm |
1.1 |
1 pm |
0.3 |
2 pm |
-0.2 |
3 pm |
-0.4 |
4 pm |
-0.2 |
5 pm |
0.3 |
6 pm |
1.1 |
7 pm |
2.1 |
8 pm |
3 |
9 pm |
3.8 |
10 pm |
4.4 |
11 pm |
4.7 |
Area Discussion for Anchorage, AK
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FXAK68 PAFC 190044 AFDAFC
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 444 PM AKDT Fri Apr 18 2025
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...
A broad upper-level trough is slowly sliding eastward across Southcentral this afternoon. Two shortwaves embedded in the longwave trough continue to bring widespread shower activity to portions of Southcentral. The first is over Price William Sound with a weak surface low spinning near Middleton Island. The second shortwave is sliding across the Susitna Valley and northern Cook Inlet. The bulk of the shower activity is underneath these waves, with one band of showers lifting from Kenai to Talkeetna and the second lifting from Middleton Island into Cordova, Valdez, and the Chugach Mountains. The airmass underneath the trough remains quite unstable, helping to support the shower activity and allowing for some heavier showers to develop in conjunction with daytime heating.
On Saturday, drier weather and with more breaks of sunshine looks to be on tap as a shortwave ridge attempts to build in to the west, kicking the longwave trough to the east. An elongated shortwave will ride overtop the building ridge and dig down over the Copper River Basin, however, likely leading to some scatterers showers for the region and higher elevations of the Talkeetnas.
Any respite in the clouds and shower activity will be short-lived though, as an occluded front moves into Kodiak Sunday morning and then into the Kenai Peninsula late Sunday. While inland areas may be somewhat downsloped, the southeasterly winds aloft aren't overly impressive, so rain, however light, will likely spill over into Anchorage and the Mat-Su Valleys on Monday. Snow levels for this system are expected to be between 800ft and 1500 ft, with the higher values towards Homer and Seward.
TM/CJ
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 444 PM AKDT Fri Apr 18 2025
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...
A broad upper-level trough is slowly sliding eastward across Southcentral this afternoon. Two shortwaves embedded in the longwave trough continue to bring widespread shower activity to portions of Southcentral. The first is over Price William Sound with a weak surface low spinning near Middleton Island. The second shortwave is sliding across the Susitna Valley and northern Cook Inlet. The bulk of the shower activity is underneath these waves, with one band of showers lifting from Kenai to Talkeetna and the second lifting from Middleton Island into Cordova, Valdez, and the Chugach Mountains. The airmass underneath the trough remains quite unstable, helping to support the shower activity and allowing for some heavier showers to develop in conjunction with daytime heating.
On Saturday, drier weather and with more breaks of sunshine looks to be on tap as a shortwave ridge attempts to build in to the west, kicking the longwave trough to the east. An elongated shortwave will ride overtop the building ridge and dig down over the Copper River Basin, however, likely leading to some scatterers showers for the region and higher elevations of the Talkeetnas.
Any respite in the clouds and shower activity will be short-lived though, as an occluded front moves into Kodiak Sunday morning and then into the Kenai Peninsula late Sunday. While inland areas may be somewhat downsloped, the southeasterly winds aloft aren't overly impressive, so rain, however light, will likely spill over into Anchorage and the Mat-Su Valleys on Monday. Snow levels for this system are expected to be between 800ft and 1500 ft, with the higher values towards Homer and Seward.
TM/CJ
.SHORT TERM FORECAST SOUTHWEST ALASKA/BERING SEA/ALEUTIANS (Days 1 through 3: Today through Monday)...
Currently, what is left of the surface low that has moved across Southwest AK continues to dissipate and move eastward. This has left behind short-lived isolated flurries, snow showers, and low cloud ceilings, especially east of Bethel and north of Iliamna.
Surface high pressure situated across Bristol Bay is quickly moving in behind the low, and will cause conditions to improve overnight and Saturday morning.
Looking out west to the Western Aleutians, a weak area of low pressure centered around Amchitka and Adak Station on Saturday morning will increase precipitation chances and wind speeds to some extent. Southerly winds will likely cause this push of precipitation to fall as rain as surface temperatures will be near 40F with not much colder air aloft. By Saturday night, this low makes a run towards the Pribilof Islands as its attendant front pushes through the Central and Eastern Aleutians with rainfall and elevated winds. The Pribilofs may initially stay just cold enough to allow snow to mix in before warm air advection from a stout southerly flow kicks in and transitions precipitation to rain. This will be a similar story during the day Sunday for Nunivak Island and the Kuskokwim Delta as the system moves northeastward. The only difference is that snow could hang on longer, resulting in light 1-2" accumulations before a changeover to a rain/snow mix. At the same time, the associated front moves into the AK PEN and interior Southwest and is mostly a rainmaker.
By Sunday afternoon, the GFS shows a broad, complex low situating itself across the Bering Sea and sending waves of precipitation once again to the Pribilofs. There is above average model timing and placement uncertainty with this low and any smaller waves associated with it that may affect the Aleutians.
-AM
.LONG TERM FORECAST (Days 4 through 7/Tuesday through Friday)...
An expansive and somewhat complex upper level low stretches across the region through the forecast period. The main low center over the Eastern Bering tracks across the Gulf of Alaska before dissipating Friday. In the West, a second low center crosses the Western Aleutians to take up station over the Central Aleutians for Friday. A number of shortwaves rotate around both centers during the forecast. A forecast blend with mostly ECMWF influence combines with the GFS to carry strengths and tracks, while the largest uncertainty remains with the minor details.
A Central Bering surface low extends a front across the Southern Alaska Peninsula on Tuesday. Snow occurs across the NOrthern Bering with Rain or rain and snow mixed over the AKPEN. A second surface low picks up the main rainfall area, spreading it across Kodiak Island into the Gulf of Alaska, diminishing Thursday. Areas of moderate rain are expected through midweek over the Western Gulf, and lingering near Kodiak Island through Friday. Over the Western Aleutians and Bering, a strong North Pacific low brings locally heavy rain, continuing over the Central Aleutians and Bering into the AKPEN and Southwest Alaska through Friday. Most of Interior Alaska will remain under quiet weather conditions.
- Kutz
AVIATION
PANC...VFR conditions and light winds will persist.
Currently, what is left of the surface low that has moved across Southwest AK continues to dissipate and move eastward. This has left behind short-lived isolated flurries, snow showers, and low cloud ceilings, especially east of Bethel and north of Iliamna.
Surface high pressure situated across Bristol Bay is quickly moving in behind the low, and will cause conditions to improve overnight and Saturday morning.
Looking out west to the Western Aleutians, a weak area of low pressure centered around Amchitka and Adak Station on Saturday morning will increase precipitation chances and wind speeds to some extent. Southerly winds will likely cause this push of precipitation to fall as rain as surface temperatures will be near 40F with not much colder air aloft. By Saturday night, this low makes a run towards the Pribilof Islands as its attendant front pushes through the Central and Eastern Aleutians with rainfall and elevated winds. The Pribilofs may initially stay just cold enough to allow snow to mix in before warm air advection from a stout southerly flow kicks in and transitions precipitation to rain. This will be a similar story during the day Sunday for Nunivak Island and the Kuskokwim Delta as the system moves northeastward. The only difference is that snow could hang on longer, resulting in light 1-2" accumulations before a changeover to a rain/snow mix. At the same time, the associated front moves into the AK PEN and interior Southwest and is mostly a rainmaker.
By Sunday afternoon, the GFS shows a broad, complex low situating itself across the Bering Sea and sending waves of precipitation once again to the Pribilofs. There is above average model timing and placement uncertainty with this low and any smaller waves associated with it that may affect the Aleutians.
-AM
.LONG TERM FORECAST (Days 4 through 7/Tuesday through Friday)...
An expansive and somewhat complex upper level low stretches across the region through the forecast period. The main low center over the Eastern Bering tracks across the Gulf of Alaska before dissipating Friday. In the West, a second low center crosses the Western Aleutians to take up station over the Central Aleutians for Friday. A number of shortwaves rotate around both centers during the forecast. A forecast blend with mostly ECMWF influence combines with the GFS to carry strengths and tracks, while the largest uncertainty remains with the minor details.
A Central Bering surface low extends a front across the Southern Alaska Peninsula on Tuesday. Snow occurs across the NOrthern Bering with Rain or rain and snow mixed over the AKPEN. A second surface low picks up the main rainfall area, spreading it across Kodiak Island into the Gulf of Alaska, diminishing Thursday. Areas of moderate rain are expected through midweek over the Western Gulf, and lingering near Kodiak Island through Friday. Over the Western Aleutians and Bering, a strong North Pacific low brings locally heavy rain, continuing over the Central Aleutians and Bering into the AKPEN and Southwest Alaska through Friday. Most of Interior Alaska will remain under quiet weather conditions.
- Kutz
AVIATION
PANC...VFR conditions and light winds will persist.
Wind History for Unalaska, AK
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Airport Reports
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Terminal Aerodrome Forecast (TAF) for PADU
Wind History Graph: ADU
(wind in knots)GEOS Local Image of Alaska
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Bethel/Anchorage,AK

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