Marine Weather and Tide Forecast for Twin Hills, AK
 | Sunrise 8:40 AM Sunset 4:46 PM Moonrise 4:13 PM Moonset 11:05 AM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
PKZ762 Bristol Bay From Cape Chichagof To Cape Pierce Out To 15 Nm- 354 Am Akst Thu Nov 6 2025
.small craft advisory through Friday - .
Today - NW wind 30 kt. Seas 5 ft. Freezing spray.
Tonight - NW wind 30 kt. Seas 5 ft. Freezing spray.
Fri - NW wind 30 kt. Seas 5 ft. Freezing spray.
Fri night - N wind 20 kt. Seas 3 ft.
Sat through Sun - E wind 20 kt. Seas 6 ft.
Mon - N wind 15 kt. Seas 7 ft.
PKZ700
No data
No data
7 Day Forecast for Marine Location Near Twin Hills, AK
NEW! Add second zone forecast
| Black Rock Click for Map Thu -- 02:24 AM AKST 7.17 feet High Tide Thu -- 08:52 AM AKST -2.32 feet Low Tide Thu -- 09:11 AM AKST Sunrise Thu -- 12:04 PM AKST Moonset Thu -- 03:58 PM AKST 9.66 feet High Tide Thu -- 05:15 PM AKST Moonrise Thu -- 05:36 PM AKST Sunset Thu -- 09:58 PM AKST 4.15 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Black Rock, Walrus Islands, Nushagak Bay, Alaska, Tide feet
| 12 am |
| 6 |
| 1 am |
| 6.7 |
| 2 am |
| 7.1 |
| 3 am |
| 7 |
| 4 am |
| 5.9 |
| 5 am |
| 4 |
| 6 am |
| 1.8 |
| 7 am |
| -0.3 |
| 8 am |
| -1.8 |
| 9 am |
| -2.3 |
| 10 am |
| -1.5 |
| 11 am |
| 0.3 |
| 12 pm |
| 2.8 |
| 1 pm |
| 5.5 |
| 2 pm |
| 7.7 |
| 3 pm |
| 9.2 |
| 4 pm |
| 9.7 |
| 5 pm |
| 9.2 |
| 6 pm |
| 8.2 |
| 7 pm |
| 6.9 |
| 8 pm |
| 5.5 |
| 9 pm |
| 4.5 |
| 10 pm |
| 4.1 |
| 11 pm |
| 4.4 |
| Hagemeister Island (north end) Click for Map Thu -- 01:43 AM AKST 6.04 feet High Tide Thu -- 08:41 AM AKST -2.14 feet Low Tide Thu -- 09:13 AM AKST Sunrise Thu -- 12:08 PM AKST Moonset Thu -- 04:41 PM AKST 11.42 feet High Tide Thu -- 05:16 PM AKST Moonrise Thu -- 05:38 PM AKST Sunset Tide / Current data from XTide NOT FOR NAVIGATION |
Hagemeister Island (north end), Alaska, Tide feet
| 12 am |
| 5.6 |
| 1 am |
| 5.9 |
| 2 am |
| 6 |
| 3 am |
| 5.5 |
| 4 am |
| 4.2 |
| 5 am |
| 2.5 |
| 6 am |
| 0.6 |
| 7 am |
| -1 |
| 8 am |
| -1.9 |
| 9 am |
| -2.1 |
| 10 am |
| -1.4 |
| 11 am |
| 0 |
| 12 pm |
| 2.2 |
| 1 pm |
| 5 |
| 2 pm |
| 7.8 |
| 3 pm |
| 10 |
| 4 pm |
| 11.2 |
| 5 pm |
| 11.4 |
| 6 pm |
| 10.7 |
| 7 pm |
| 9.6 |
| 8 pm |
| 8.3 |
| 9 pm |
| 7.2 |
| 10 pm |
| 6.2 |
| 11 pm |
| 5.6 |
FXAK68 PAFC 061441 AFDAFC
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 541 AM AKST Thu Nov 6 2025
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3: Today through Saturday)...
An inverted trough, the fractured remnants of an old occluded front, is sweeping across the northeastern Gulf this morning.
This feature, along with its attendant mid-level trough, will move into Prince William Sound (PWS) over the next several hours, bringing snow to the region along with gusty northerly gap winds along the immediate coast. Ahead of the trough, clouds are on the increase, but not before overnight lows had the chance to drop into the teens and 20s for locations along Cook Inlet north into the interior of Southcentral.
The gusty gap winds will continue through the day today as both the trough and a trailing potent surface low move toward the coast. The mid-level trough is serving as an axis for moisture to advect northward, leading to snow for Thompson Pass, a rain/snow mix for Valdez, and a cold rain for Cordova this morning. The wind is also producing blowing snow in Thompson Pass, which is expected to persist through the day before the bulk of the moisture slides west.
The aforementioned low will move rapidly north today with its occluded front swinging to the Southcentral coast by late this afternoon. Additional moisture will stream into PWS and the Kenai Peninsula through the day along this frontal boundary. With low pressure remaining south of PWS, an offshore flow should persist across the Kenai Peninsula. This will likely allow for the bulk of the precipitation to fall as snow, even along the immediate coast. The snow may be heavy at times through the late morning and afternoon hours from Portage to Seward. For coastal locations, there may be just enough warm air advection to allow for a rain/snow mix at times, limiting snow accumulations. For interior locations along the Seward Highway, though, several inches of accumulation are likely, with the highest amounts in Turnagain Pass.
The snow shifts west with the trough through the day with snow developing from the Western Kenai north toward Talkeetna by late this afternoon. Snow amounts will be light farther north, but 1 to 4 inches of snow is possible across the Anchorage Bowl with 4 to 8 inches of snow possible across the western Kenai Peninsula through Friday morning. Northerly winds will also increase through this evening, and this may help keep drier air in place near the surface across West Anchorage south to Nikiski, limiting accumulations there.
The surface low will track south of Seward by early Friday morning with its cold front likely lifting into PWS later Friday morning. There is still some uncertainty with the placement and track of the front, with the magnitude of winds and precipitation types across PWS and the eastern Kenai Peninsula highly dependent on the exact track. Nonetheless, winds will become quite strong for Seward and Resurrection Bay tonight, with gusts to 50 mph possible, as the low approaches.
Resuspended ash from the 1912 Katmai-Novarupta eruption can be seen moving over Shelikof Strait towards Kodiak Island on satellite this morning. This will continue into Friday as winds remain strong due to cold air advection south of the low. A Special Weather Statement has been issued for potential ash resettling over Kodiak Island. Winds may gust to close to 65 mph across Shelikof Strait and up to 50 mph for Kodiak City.
The low will stall Friday morning before drifting south. Colder air in the wake of the front will increase instability and allow for snow showers to linger across the Kenai Peninsula through Friday. A secondary shortwave moving from the Alaska Panhandle into the Copper River Basin will likely bring another round of light snow for the eastern half of Southcentral late Friday into Saturday.
-TM
Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 541 AM AKST Thu Nov 6 2025
.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3: Today through Saturday)...
An inverted trough, the fractured remnants of an old occluded front, is sweeping across the northeastern Gulf this morning.
This feature, along with its attendant mid-level trough, will move into Prince William Sound (PWS) over the next several hours, bringing snow to the region along with gusty northerly gap winds along the immediate coast. Ahead of the trough, clouds are on the increase, but not before overnight lows had the chance to drop into the teens and 20s for locations along Cook Inlet north into the interior of Southcentral.
The gusty gap winds will continue through the day today as both the trough and a trailing potent surface low move toward the coast. The mid-level trough is serving as an axis for moisture to advect northward, leading to snow for Thompson Pass, a rain/snow mix for Valdez, and a cold rain for Cordova this morning. The wind is also producing blowing snow in Thompson Pass, which is expected to persist through the day before the bulk of the moisture slides west.
The aforementioned low will move rapidly north today with its occluded front swinging to the Southcentral coast by late this afternoon. Additional moisture will stream into PWS and the Kenai Peninsula through the day along this frontal boundary. With low pressure remaining south of PWS, an offshore flow should persist across the Kenai Peninsula. This will likely allow for the bulk of the precipitation to fall as snow, even along the immediate coast. The snow may be heavy at times through the late morning and afternoon hours from Portage to Seward. For coastal locations, there may be just enough warm air advection to allow for a rain/snow mix at times, limiting snow accumulations. For interior locations along the Seward Highway, though, several inches of accumulation are likely, with the highest amounts in Turnagain Pass.
The snow shifts west with the trough through the day with snow developing from the Western Kenai north toward Talkeetna by late this afternoon. Snow amounts will be light farther north, but 1 to 4 inches of snow is possible across the Anchorage Bowl with 4 to 8 inches of snow possible across the western Kenai Peninsula through Friday morning. Northerly winds will also increase through this evening, and this may help keep drier air in place near the surface across West Anchorage south to Nikiski, limiting accumulations there.
The surface low will track south of Seward by early Friday morning with its cold front likely lifting into PWS later Friday morning. There is still some uncertainty with the placement and track of the front, with the magnitude of winds and precipitation types across PWS and the eastern Kenai Peninsula highly dependent on the exact track. Nonetheless, winds will become quite strong for Seward and Resurrection Bay tonight, with gusts to 50 mph possible, as the low approaches.
Resuspended ash from the 1912 Katmai-Novarupta eruption can be seen moving over Shelikof Strait towards Kodiak Island on satellite this morning. This will continue into Friday as winds remain strong due to cold air advection south of the low. A Special Weather Statement has been issued for potential ash resettling over Kodiak Island. Winds may gust to close to 65 mph across Shelikof Strait and up to 50 mph for Kodiak City.
The low will stall Friday morning before drifting south. Colder air in the wake of the front will increase instability and allow for snow showers to linger across the Kenai Peninsula through Friday. A secondary shortwave moving from the Alaska Panhandle into the Copper River Basin will likely bring another round of light snow for the eastern half of Southcentral late Friday into Saturday.
-TM
.SHORT TERM FORECAST SOUTHWEST ALASKA/BERING SEA/ALEUTIANS (Days 1 through 3: Today through Saturday evening)...
An elongated upper level low continues to stretch across Southwest this morning as gusty north to northwest winds slowly ramp up at the surface. A small amount of moisture wrapping into the upper level low coupled with weak lift is helping to kick of isolated to widely scattered snow showers, mainly near the Kuskokwim Mountains and parts of the Lower Kuskokwim Valley.
Otherwise, most of the lower elevations of Bristol Bay and the Kuskokwim Delta have begun to dry out, and will stay dry for today. North winds have mostly kept fog at bay across the Kuskokwim delta by keeping the boundary layer more mixed compared to the past few days. Across the Bering Sea, a weak front stemming from a Kamchatka low is making headway east into the Bering Sea, sending a wave of small craft level winds and mainly rain showers across the central and western Aleutian Chain. Out towards the AKPen, strong northerly winds are also picking up as the pressure gradient tightens between a low heading up into the Gulf and a weak ridge sitting out ahead of the Bering front off to the northwest.
For the forecast details, the overall outlook remains on track as the pattern turns increasingly unsettled. Gusty winds along the AKPen and across parts of Southwest will persist into Friday night as a low continues to track over the Gulf and as cold air continues to stream south into Southwest and across the eastern Bering. The upper level low will continue to shift southeast and interact with the Gulf low, leaving behind a narrow, negatively tilted trough over Southwest in its place. Moisture wrapping around the low and across the Alaska Range will help support a band of light snow along a deformation axis setting up east of the trough on Friday, bringing light snow into mainly areas along the Alaska Range between Iliamna and Lime Village. Otherwise, dry conditions and fairly steady temperatures in the 10s to 20s will persist across Southwest through the start of the weekend. Lows may dip down several degrees colder into the 0s to 10 above in some spots by Friday night as winds finally drop out while a shortwave ridge moves overhead ahead of a strong system moving over the Bering Sea.
The strong system touched on above will take center stage for the attention out west as we head into the weekend. Before the impacts from this next system begin, the front will send a quick pulse of northwest winds and scattered showers across the Pribilofs and eastern Aleutians tonight into Friday. The front will quickly disintegrate by Friday evening as it heads into the eastern Bering. Meanwhile, a much more impressive system will be just getting its act together out in the North Pacific. A fast-moving low and attendant upper shortwave will phase strongly with a separate trough moving south of Kamchatka during the day on Friday, helping the resulting surface low to undergo rapid intensification as it curves north towards the far western Bering.
A powerful Storm force front with Hurricane force gusts will reach the western Aleutians by late Friday morning, sending wind gusts as high as 75 to 85 mph into Shemya as it moves past. Shortly thereafter, the low center will move just off to the west of Attu Island as its central minimum pressure bottoms out near 940 mb sometime late on Friday into early Saturday. A sting jet descending around the southern and western side of the low will send a secondary round of powerful southerly winds into the southwest corner of the Bering Sea, possibly reaching sustained Hurricane force for a brief period near the very western edge of the marine outlook area west of Shemya and Attu. Shemya itself will see another round of very strong southerly winds as the low passes to the west, again peaking in the 75 to 85 mph range late Friday night.
From Friday night into Saturday, the low's front will continue rapidly northeast into the central Bering, sending a band of southerly winds between gale and storm force along with moderate rain across much of the Aleutians and Bering, eventually reaching the Pribilofs and Saint Matthew by Saturday afternoon. Strong winds will continue near the low as the center continues to lift slowly north and begin to slowly weaken after reaching peak intensity. Concerns are beginning to increase that this front could reach the Southwest Coast later this weekend, possibly leading to a threat for minor coastal flooding along parts of the Kuskokwim Delta Coast, namely near Kwigillingok. Stay tuned for forecast updates an on potential impacts from this upcoming storm system as we follow it through the upcoming weekend.
.LONG TERM FORECAST (Days 4 through 7: Sunday through Wednesday)...
The overall picture remains largely unchanged from yesterday.
Several strong storms will move across Southern Alaska, the Gulf, and the Bering Sea through early next week. Forecast confidence is slightly better than usual for this timeframe.
By Sunday, the sub-950 mb low in the Western Bering will have begun to weaken. Still, expect widespread areas of 25+ kt winds around the low center as well as the front. Forecast confidence declines rapidly through Sunday as models struggle with where the occluded low will track in the Bering Sea. Additionally, models are honing in on the development of a low at the triple point near the Alaska Peninsula. However, where this triple point low tracks and how strong it will be continues to be highly uncertain. There seems to be decent agreement that the low will eventually curve into the Gulf on Monday, though track differences make it difficult to ascertain how far into Southcentral precipitation will go.
By late Monday, a strong low moving along the Kamchatka coast will begin pushing its front into the Western Bering Sea. For now, winds along the front look to remain at sustained high-end gales to storm force, which is on par with what models were showing yesterday. What is different, however, is that deterministic models today are showing the development of a triple point low in the Bering Sea and a more rapid weakening of the front. As such, impacts will likely be lower than initially anticipated.
-KC
AVIATION
PANC...VFR conditions along with north winds are expected to persist into Thursday afternoon. By late Thursday afternoon, a band of snow will move over the region. MVFR cigs and vis are expected by late Thursday afternoon with a period of steadier snow potentially resulting in IFR vis Thursday evening through around midnight. Northerly winds will also increase Thursday night with gusts up to 25 kt possible. The stronger winds may help keep drier air near the surface and reduce the potential for any significant snow accumulation. However, if snow does accumulate, occasional drifting snow is possible due to the gusty winds.
Steady snow and gusty winds will likely taper off by Friday morning.
An elongated upper level low continues to stretch across Southwest this morning as gusty north to northwest winds slowly ramp up at the surface. A small amount of moisture wrapping into the upper level low coupled with weak lift is helping to kick of isolated to widely scattered snow showers, mainly near the Kuskokwim Mountains and parts of the Lower Kuskokwim Valley.
Otherwise, most of the lower elevations of Bristol Bay and the Kuskokwim Delta have begun to dry out, and will stay dry for today. North winds have mostly kept fog at bay across the Kuskokwim delta by keeping the boundary layer more mixed compared to the past few days. Across the Bering Sea, a weak front stemming from a Kamchatka low is making headway east into the Bering Sea, sending a wave of small craft level winds and mainly rain showers across the central and western Aleutian Chain. Out towards the AKPen, strong northerly winds are also picking up as the pressure gradient tightens between a low heading up into the Gulf and a weak ridge sitting out ahead of the Bering front off to the northwest.
For the forecast details, the overall outlook remains on track as the pattern turns increasingly unsettled. Gusty winds along the AKPen and across parts of Southwest will persist into Friday night as a low continues to track over the Gulf and as cold air continues to stream south into Southwest and across the eastern Bering. The upper level low will continue to shift southeast and interact with the Gulf low, leaving behind a narrow, negatively tilted trough over Southwest in its place. Moisture wrapping around the low and across the Alaska Range will help support a band of light snow along a deformation axis setting up east of the trough on Friday, bringing light snow into mainly areas along the Alaska Range between Iliamna and Lime Village. Otherwise, dry conditions and fairly steady temperatures in the 10s to 20s will persist across Southwest through the start of the weekend. Lows may dip down several degrees colder into the 0s to 10 above in some spots by Friday night as winds finally drop out while a shortwave ridge moves overhead ahead of a strong system moving over the Bering Sea.
The strong system touched on above will take center stage for the attention out west as we head into the weekend. Before the impacts from this next system begin, the front will send a quick pulse of northwest winds and scattered showers across the Pribilofs and eastern Aleutians tonight into Friday. The front will quickly disintegrate by Friday evening as it heads into the eastern Bering. Meanwhile, a much more impressive system will be just getting its act together out in the North Pacific. A fast-moving low and attendant upper shortwave will phase strongly with a separate trough moving south of Kamchatka during the day on Friday, helping the resulting surface low to undergo rapid intensification as it curves north towards the far western Bering.
A powerful Storm force front with Hurricane force gusts will reach the western Aleutians by late Friday morning, sending wind gusts as high as 75 to 85 mph into Shemya as it moves past. Shortly thereafter, the low center will move just off to the west of Attu Island as its central minimum pressure bottoms out near 940 mb sometime late on Friday into early Saturday. A sting jet descending around the southern and western side of the low will send a secondary round of powerful southerly winds into the southwest corner of the Bering Sea, possibly reaching sustained Hurricane force for a brief period near the very western edge of the marine outlook area west of Shemya and Attu. Shemya itself will see another round of very strong southerly winds as the low passes to the west, again peaking in the 75 to 85 mph range late Friday night.
From Friday night into Saturday, the low's front will continue rapidly northeast into the central Bering, sending a band of southerly winds between gale and storm force along with moderate rain across much of the Aleutians and Bering, eventually reaching the Pribilofs and Saint Matthew by Saturday afternoon. Strong winds will continue near the low as the center continues to lift slowly north and begin to slowly weaken after reaching peak intensity. Concerns are beginning to increase that this front could reach the Southwest Coast later this weekend, possibly leading to a threat for minor coastal flooding along parts of the Kuskokwim Delta Coast, namely near Kwigillingok. Stay tuned for forecast updates an on potential impacts from this upcoming storm system as we follow it through the upcoming weekend.
.LONG TERM FORECAST (Days 4 through 7: Sunday through Wednesday)...
The overall picture remains largely unchanged from yesterday.
Several strong storms will move across Southern Alaska, the Gulf, and the Bering Sea through early next week. Forecast confidence is slightly better than usual for this timeframe.
By Sunday, the sub-950 mb low in the Western Bering will have begun to weaken. Still, expect widespread areas of 25+ kt winds around the low center as well as the front. Forecast confidence declines rapidly through Sunday as models struggle with where the occluded low will track in the Bering Sea. Additionally, models are honing in on the development of a low at the triple point near the Alaska Peninsula. However, where this triple point low tracks and how strong it will be continues to be highly uncertain. There seems to be decent agreement that the low will eventually curve into the Gulf on Monday, though track differences make it difficult to ascertain how far into Southcentral precipitation will go.
By late Monday, a strong low moving along the Kamchatka coast will begin pushing its front into the Western Bering Sea. For now, winds along the front look to remain at sustained high-end gales to storm force, which is on par with what models were showing yesterday. What is different, however, is that deterministic models today are showing the development of a triple point low in the Bering Sea and a more rapid weakening of the front. As such, impacts will likely be lower than initially anticipated.
-KC
AVIATION
PANC...VFR conditions along with north winds are expected to persist into Thursday afternoon. By late Thursday afternoon, a band of snow will move over the region. MVFR cigs and vis are expected by late Thursday afternoon with a period of steadier snow potentially resulting in IFR vis Thursday evening through around midnight. Northerly winds will also increase Thursday night with gusts up to 25 kt possible. The stronger winds may help keep drier air near the surface and reduce the potential for any significant snow accumulation. However, if snow does accumulate, occasional drifting snow is possible due to the gusty winds.
Steady snow and gusty winds will likely taper off by Friday morning.
Link to 1 hour of 5 minute data for PATG
Terminal Aerodrome Forecast (TAF) for PATG
Wind History Graph: ATG
(wind in knots)
GEOS Local Image of Alaska
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Bethel/Anchorage,AK
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