Marine Weather and Tide Forecast for Ninilchik, AK
![]() | Sunrise 4:52 AM Sunset 10:59 PM Moonrise 2:03 AM Moonset 12:57 PM |
PKZ742 Cook Inlet Kalgin Island To Point Bede- 246 Pm Akdt Tue May 20 2025
Tonight - S wind 20 kt becoming E after midnight. Seas 6 ft subsiding to 4 ft after midnight.
Wed - NE wind 20 kt. Seas 4 ft. Rain.
Wed night - NE wind 15 kt. Seas 4 ft.
Thu - NE wind 15 kt. Seas 5 ft.
Thu night - Variable wind less than 10 kt. Seas 2 ft.
Fri - Variable wind less than 10 kt. Seas 2 ft.
Sat - SW wind 10 kt. Seas 3 ft.
Sun - NE wind 15 kt. Seas 3 ft.
PKZ700
No data
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7 Day Forecast for Marine Location Near Ninilchik, AK

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Ninilchik Click for Map Wed -- 04:03 AM AKDT Moonrise Wed -- 04:59 AM AKDT 5.28 feet Low Tide Wed -- 05:13 AM AKDT Sunrise Wed -- 10:28 AM AKDT 14.67 feet High Tide Wed -- 02:57 PM AKDT Moonset Wed -- 05:12 PM AKDT 2.50 feet Low Tide Wed -- 10:54 PM AKDT Sunset Wed -- 11:29 PM AKDT 16.69 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
Ninilchik, Alaska, Tide feet
12 am |
14.4 |
1 am |
12.5 |
2 am |
10.1 |
3 am |
7.7 |
4 am |
5.9 |
5 am |
5.3 |
6 am |
6.1 |
7 am |
8.1 |
8 am |
10.6 |
9 am |
13 |
10 am |
14.5 |
11 am |
14.5 |
12 pm |
13.2 |
1 pm |
11 |
2 pm |
8.4 |
3 pm |
5.7 |
4 pm |
3.5 |
5 pm |
2.5 |
6 pm |
3.1 |
7 pm |
5.2 |
8 pm |
8.3 |
9 pm |
11.7 |
10 pm |
14.7 |
11 pm |
16.5 |
Cape Ninilchik Click for Map Wed -- 04:03 AM AKDT Moonrise Wed -- 04:49 AM AKDT 5.48 feet Low Tide Wed -- 05:14 AM AKDT Sunrise Wed -- 10:28 AM AKDT 14.67 feet High Tide Wed -- 02:57 PM AKDT Moonset Wed -- 05:02 PM AKDT 2.70 feet Low Tide Wed -- 10:53 PM AKDT Sunset Wed -- 11:29 PM AKDT 16.69 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |   |
Cape Ninilchik, Alaska, Tide feet
12 am |
14.4 |
1 am |
12.4 |
2 am |
9.9 |
3 am |
7.6 |
4 am |
5.9 |
5 am |
5.5 |
6 am |
6.5 |
7 am |
8.5 |
8 am |
10.9 |
9 am |
13.1 |
10 am |
14.5 |
11 am |
14.5 |
12 pm |
13.2 |
1 pm |
10.9 |
2 pm |
8.2 |
3 pm |
5.5 |
4 pm |
3.5 |
5 pm |
2.7 |
6 pm |
3.5 |
7 pm |
5.7 |
8 pm |
8.7 |
9 pm |
12 |
10 pm |
14.8 |
11 pm |
16.5 |
Area Discussion for Anchorage, AK
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FXAK68 PAFC 210254 AFDAFC
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 654 PM AKDT Tue May 20 2025
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...
A southerly flow regime has become established across Southcentral between a longwave trough extending from the western Arctic Ocean down into the eastern Bering Sea and a longwave ridge extending across Northwest Canada and AlCan Border. A couple weak shortwaves are lifting north within this broad region of southerlies, one in the eastern Copper Basin, and another near the Mat-Su Valleys.
Isolated to scattered showers have once again developed with pockets of afternoon sunshine and heating, namely over the western Kenai Peninsula, Mat-Su Valleys and northern Copper Basin. A couple more lightning strikes will still be possible near the northern Alaska Range and across the Mat-Su this evening. However, the cooler air streaming in from the Gulf today has helped keep instability more limited overall compared to yesterday. Thus, any thunderstorm activity through this evening will remain very isolated in nature.
On Wednesday, a potent shortwave trough and attendant low will move into the Gulf just to the south of Kodiak Island. This low will push its front into the central and western Gulf, spreading gusty southeasterly winds and rain into Kodiak Island and up into the eastern Kenai Peninsula. The approaching low and front over the Gulf will help build up a coastal ridge along the north Gulf Coast, and this should drive fairly potent gap winds through the Turnagain Arm, Knik Valley and Copper River Valley during the afternoon and evening. Southeasterly gusts up to 30 to 40 mph will be common along parts of the Turnagain Arm, as well as parts of the Anchorage Hillside and western side of the Anchorage Bowl.
Similar or slightly weaker winds are expected across parts of the Mat Valley and Copper River Basin. While it will certainly be a blustery day in places, the interior valleys should stay fairly dry thanks to the strong southeasterly flow developing north of the Gulf low/front and downslope drying in the lee of the mountains.
From Thursday into Friday, a transition to a quieter, warmer and drier pattern will begin as the Gulf low moves off into the Northeast Pacific and as prevailing winds aloft begin to turn more easterly to northeasterly. This should draw warmer and drier air into Southcentral from the Interior and Yukon, especially on Friday. It's looking like quite a pleasant close out to the work week on Friday afternoon, with increasingly clear skies and a decent chance for valley temperatures to approach or exceed 60 degrees Fahrenheit.
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 654 PM AKDT Tue May 20 2025
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...
A southerly flow regime has become established across Southcentral between a longwave trough extending from the western Arctic Ocean down into the eastern Bering Sea and a longwave ridge extending across Northwest Canada and AlCan Border. A couple weak shortwaves are lifting north within this broad region of southerlies, one in the eastern Copper Basin, and another near the Mat-Su Valleys.
Isolated to scattered showers have once again developed with pockets of afternoon sunshine and heating, namely over the western Kenai Peninsula, Mat-Su Valleys and northern Copper Basin. A couple more lightning strikes will still be possible near the northern Alaska Range and across the Mat-Su this evening. However, the cooler air streaming in from the Gulf today has helped keep instability more limited overall compared to yesterday. Thus, any thunderstorm activity through this evening will remain very isolated in nature.
On Wednesday, a potent shortwave trough and attendant low will move into the Gulf just to the south of Kodiak Island. This low will push its front into the central and western Gulf, spreading gusty southeasterly winds and rain into Kodiak Island and up into the eastern Kenai Peninsula. The approaching low and front over the Gulf will help build up a coastal ridge along the north Gulf Coast, and this should drive fairly potent gap winds through the Turnagain Arm, Knik Valley and Copper River Valley during the afternoon and evening. Southeasterly gusts up to 30 to 40 mph will be common along parts of the Turnagain Arm, as well as parts of the Anchorage Hillside and western side of the Anchorage Bowl.
Similar or slightly weaker winds are expected across parts of the Mat Valley and Copper River Basin. While it will certainly be a blustery day in places, the interior valleys should stay fairly dry thanks to the strong southeasterly flow developing north of the Gulf low/front and downslope drying in the lee of the mountains.
From Thursday into Friday, a transition to a quieter, warmer and drier pattern will begin as the Gulf low moves off into the Northeast Pacific and as prevailing winds aloft begin to turn more easterly to northeasterly. This should draw warmer and drier air into Southcentral from the Interior and Yukon, especially on Friday. It's looking like quite a pleasant close out to the work week on Friday afternoon, with increasingly clear skies and a decent chance for valley temperatures to approach or exceed 60 degrees Fahrenheit.
.SHORT TERM FORECAST SOUTHWEST ALASKA AND BERING SEA/ALEUTIANS (Days 1 through 3)...
Currently, scattered showers are forming across the Southwest Alaska mainland as a low over the Alaska Peninsula moves eastward.
Wind speeds are relatively light and easterly in the mainland.
The Eastern Aleutians are a different story. They are seeing heavy rains and gusty galeforce northwesterly winds, especially out of gap regions. The western Aleutians are under a ridge and are relatively calm with scattered showers. As the low continues its trek eastward on Wednesday, the main core of precipitation will move over the mainland, allowing for more widespread rains and gusty easterly winds out of the Kamishak Gap into Bristol Bay. The Bering will see a weaker low push a front into the western Aleutians by Wednesday afternoon, allowing for another round of precipitation and small craft winds. This low will quickly weaken and phase into the first low by Thursday. It will drag an area of light precipitation and winds into the Fox Islands on Thursday before this happens.
The first low will push into the Gulf of Alaska by Thursday, and higher pressure will build into the southwest mainland, allowing for drier and calmer conditions through Friday. Although, lingering showers are still possible in the Lower Kuskokwim Delta.
Also, gusty winds out of the Kamishak Gap will also linger through Friday morning. The Bering will have a broad ridge set up, allowing for calmer and less rainy conditions. However, this ridge will quickly be pushed southeastward by a strong Kamchatka low from the west. A strong front from the low marches through the Aleutians, arriving at the Fox and Pribilof Islands by Friday night/Saturday morning. Gale force winds and heavy rains will be associated this front.
-JAR
.LONG TERM FORECAST (Days 4 through 7: Saturday through Tuesday)...
A number of upper level low centers progress from the Russian Far East across the Bering and Alaska Peninsula into the Gulf of Alaska through the forecast period. Main jetstream energy remains across the North Pacific into the new week, with shortwaves passing through the pattern. Most of the active weather will be occurring over the Southern portions of the state. Ensemble forecast models handle the features overall with some variations in timing of individual events.
Lingering showers are expected over the Southern half of Mainland Alaska through the weekend. A well developed low and front pushing across the Western Aleutians and Bering brings moderate rain and locally gusty winds across the region. This front moves over the Central and Eastern Bering on into Western Alaska, the AKPEN and Kodiak Island Sunday before spreading across Southcentral Alaska through Tuesday. Locally moderate rain moves further into the Interior with the front extending across the coasts. The supporting surface low crosses the AKPEN Monday and slips South of Kodiak Island through Tuesday.
- Kutz
AVIATION
PANC...VFR conditions will persist through the period. The Turnagain Arm wind will continue to bend over the terminal this evening, slowly decreasing through the overnight hours. Thursday looks to be a scenario where the wind is not necessarily bending over the terminal, but where the wind is only clipping the airport, coming straight out of Turnagain Arm.
MTL
Currently, scattered showers are forming across the Southwest Alaska mainland as a low over the Alaska Peninsula moves eastward.
Wind speeds are relatively light and easterly in the mainland.
The Eastern Aleutians are a different story. They are seeing heavy rains and gusty galeforce northwesterly winds, especially out of gap regions. The western Aleutians are under a ridge and are relatively calm with scattered showers. As the low continues its trek eastward on Wednesday, the main core of precipitation will move over the mainland, allowing for more widespread rains and gusty easterly winds out of the Kamishak Gap into Bristol Bay. The Bering will see a weaker low push a front into the western Aleutians by Wednesday afternoon, allowing for another round of precipitation and small craft winds. This low will quickly weaken and phase into the first low by Thursday. It will drag an area of light precipitation and winds into the Fox Islands on Thursday before this happens.
The first low will push into the Gulf of Alaska by Thursday, and higher pressure will build into the southwest mainland, allowing for drier and calmer conditions through Friday. Although, lingering showers are still possible in the Lower Kuskokwim Delta.
Also, gusty winds out of the Kamishak Gap will also linger through Friday morning. The Bering will have a broad ridge set up, allowing for calmer and less rainy conditions. However, this ridge will quickly be pushed southeastward by a strong Kamchatka low from the west. A strong front from the low marches through the Aleutians, arriving at the Fox and Pribilof Islands by Friday night/Saturday morning. Gale force winds and heavy rains will be associated this front.
-JAR
.LONG TERM FORECAST (Days 4 through 7: Saturday through Tuesday)...
A number of upper level low centers progress from the Russian Far East across the Bering and Alaska Peninsula into the Gulf of Alaska through the forecast period. Main jetstream energy remains across the North Pacific into the new week, with shortwaves passing through the pattern. Most of the active weather will be occurring over the Southern portions of the state. Ensemble forecast models handle the features overall with some variations in timing of individual events.
Lingering showers are expected over the Southern half of Mainland Alaska through the weekend. A well developed low and front pushing across the Western Aleutians and Bering brings moderate rain and locally gusty winds across the region. This front moves over the Central and Eastern Bering on into Western Alaska, the AKPEN and Kodiak Island Sunday before spreading across Southcentral Alaska through Tuesday. Locally moderate rain moves further into the Interior with the front extending across the coasts. The supporting surface low crosses the AKPEN Monday and slips South of Kodiak Island through Tuesday.
- Kutz
AVIATION
PANC...VFR conditions will persist through the period. The Turnagain Arm wind will continue to bend over the terminal this evening, slowly decreasing through the overnight hours. Thursday looks to be a scenario where the wind is not necessarily bending over the terminal, but where the wind is only clipping the airport, coming straight out of Turnagain Arm.
MTL
Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
APXA2 | 29 mi | 82 min | S 2.9 | 45°F | 29.86 | 38°F | ||
KNXA2 | 33 mi | 25 min | SSW 2.9G | 44°F | 39°F | |||
HMSA2 | 36 mi | 25 min | SE 8G | 47°F | 36°F | |||
HMRA2 - Kachemak Bay Reserve, AK | 37 mi | 97 min | S 12 | 29.86 | ||||
46108 - Central Cook Inlet - 175 | 39 mi | 67 min | 44°F | 2 ft | ||||
NKTA2 - 9455760 - Nikiski, AK | 40 mi | 49 min | S 5.1G | 44°F | 46°F | 29.89 | ||
NSXA2 | 45 mi | 25 min | S 4.1G | 42°F | 38°F | |||
OVIA2 - 9455500 - Seldovia, AK | 48 mi | 49 min | 45°F | 29.85 |
Wind History for Nikiski, AK
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Airport Reports
Link to 1 hour of 5 minute data for PAHO
Terminal Aerodrome Forecast (TAF) for PAHO
Wind History Graph: AHO
(wind in knots)GEOS Local Image of Alaska
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Anchorage/Kenai,AK

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