Tuesday, May11, 2021
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Marine Weather and Tides
Adak, AK

Version 3.4
NOTICE
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 5:17AMSunset 10:34PM Tuesday May 11, 2021 2:31 AM AKDT (10:31 UTC) Moonrise 5:16AMMoonset 8:47PM Illumination 0% Phase: New Moon; Moon at 29 days in cycle
NOTE: Some of the data on this page has not been verified and should be used with that in mind. It may and occasionally will, be wrong. The tide reports are by xtide and are NOT FOR NAVIGATION.
Marine Forecasts
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PKZ175 SEguam Island To Adak Bering Side- 356 Pm Akdt Mon May 10 2021
.small craft advisory Tuesday night...
Tonight..Variable wind 10 kt. Seas 3 ft.
Tue..SE wind 20 kt. Seas 4 ft.
Tue night..SE wind 25 kt. Seas 7 ft. Rain.
Wed and Wed night..S wind 20 kt. Seas 5 ft.
Thu..SW wind 25 kt. Seas 6 ft.
Fri through Sat..SW wind 30 kt. Seas 13 ft.


7 Day Forecast for Marine Location Near Adak, AK
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location: 51.83, -176.62     debug


Area Discussion for -
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FXAK68 PAFC 110125 AFDAFC

Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 525 PM AKDT Mon May 10 2021

ANALYSIS AND UPPER LEVELS.

A series of upper lows is bringing widespread low cloud cover across much of the Bering/Aleutians, with scattered showers seen over the eastern Aleutians near a weak surface low. Farther east, southeasterly flow aloft is bringing light rain to the Gulf coast. Much of the interior remains dry. Steady rain is also observed over Kodiak Island with a long fetch of moisture extending across the Gulf and along the Panhandle as shown in the latest water vapor imagery.

MODEL DISCUSSION.

Models are in good large scale agreement. A compact low will approach Prince William Sound Tuesday morning. The GFS takes a slightly more southerly track, which would lead to stronger winds in the Sound itself, while the NAM moves directly over the Sound and therefore winds would be weaker. Although showers near higher terrain are possible in the coming days, models are overestimating the QPF and thus any shower activity would be light.

AVIATION.

PANC . Southeasterly winds are expected to increase this afternoon, with gusts potentially approaching 30 kts. These will gradually diminish though this evening. VFR conditions will persist, though ceilings may briefly fall below 5000' this evening.

SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 and 2).

A midlevel shortwave and surface low over the central Gulf this evening is expected to move into the Prince William Sound Tuesday afternoon. Another upper level wave currently over the AKPen will get pulled into the Gulf by the aforementioned low, where the two will then merge before moving into Southeast Alaska Wednesday afternoon. This pattern will continue what Southcentral observed over the weekend, with rain likely along the coast and a few showers possible over the downslope regions from Homer north to Palmer. The main difference will be a weak easterly wave to the north of the upper level low center providing lift for rain over the interior mountain ranges. This will begin over the Wrangells tonight and move east into the Talkeetna Mountains and Western Alaska Range Tuesday afternoon. As for the interior valleys, there is a chance of rain along the Richardson Highway over and north of Glennallen Tuesday afternoon. The same upper level wave is then expected to swing into the Susitna Valley later on Tuesday with rain likely to the north of Talkeetna.

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Monday afternoon through Thursday) .

Low pressure over the Bering and AKPEN will keep a chance of showers through Tuesday, however coverage of showers will decrease tonight and Tuesday. On Wednesday, high pressure will try to edge in from the interior. This will cause some patchy fog to form over the valleys Wednesday morning. However, a few mainly afternoon showers will develop mostly over the higher terrain but may drift over valley locations. On Thursday an approaching occluded front will increase clouds with a chance of showers by late in the day. Temperatures will warm slightly Wednesday and Thursday into the 50s for highs which will be near or slightly above normal for this part of May.

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3: Monday afternoon through Thursday) .

An elongated area of low pressure with several low centers will affect the Bering and Aleutians. A weakening low near the Pribilofs will dissipate tonight causing a few showers. While a low near the Kamchatka Peninsula will move across the northern Bering keeping unsettled weather across the western and northern Bering. On Tuesday a frontal system will move into the Western Aleutians with winds near 25 knots and areas of rain. This front will move east Wednesday and Thursday across the Bering spreading rain with winds up to 30 knots. The parent low of the aforementioned front will move over the Western Aleutians Wednesday and Thursday and slowly move east, but will have very limited impacts other than rain. By Thursday a low over the North Pacific will interact with the front moving near the Eastern Aleutians and AKPEN. This will cause gale force winds near the AKPEN into Bristol Bay and the eastern Bering with moderate to heavy rain possible.

MARINE (Days 3 through 5: Thursday through Saturday).

Bering: A broad complex low will be in place over the Bering through Saturday. Southeasterly gale force winds are likely across the eastern Bering on Thursday. Westerly gales are likely just south of the Aleutian chain Friday as the low center moves into the eastern Bering for Saturday.

Gulf of Alaska: There is increasing confidence a gale force front will enter the western Bering Thursday morning. Gusty southeasterly winds are likely through the usual places including the Barren Islands, Shelikof Strait, and Kamishak Bay Thursday into Friday. Gusty conditions are expected to taper by Saturday as the front lifts inland.

Long Term Forecast (Days 4 through 7: Friday through Monday).

The key feature in the long term is a broad upper level low centered over the Bering with several upper level waves lifting inland. This will keep a generally unsettled pattern across the southern half of the state through the weekend. The leading front associated with this large low will lift inland over Southcentral Friday into Saturday. As the low center continues to drift over the Eastern Aleutians late Saturday, rain and gusty winds can be expected across much of the chain and the southern Alaska Peninsula. Showers will also spread across Southwest through Sunday afternoon as the low tracks into the Gulf for the early part of next week. In the wake of the low, conditions will improve over the Bering as a ridge of high pressure builds early Monday. Cloud cover and scattered showers may remain across Southcentral through Monday as residual upper level waves propagate inland.

AFC WATCHES/WARNINGS/ADVISORIES. PUBLIC . NONE. MARINE . NONE. FIRE WEATHER . NONE.



SYNOPSIS AND MODEL DISCUSSION . MF SOUTHCENTRAL ALASKA . CJ SOUTHWEST ALASKA/BERING SEA/ALEUTIANS . RC MARINE/LONG TERM . KO


Weather Reporting Stations
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On 03/09/2021 the NDBC primary processing servers were shut off due to a facilities issue. Station pages on the NDBC website are not updating and there is no ETR at this time. We will update this banner as we learn more.
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ADKA2 - 9461380 - Adak Island, AK 2 mi44 min SE 5.1 G 6 40°F 1014.6 hPa

Wind History for Adak Island, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Adak Island, Adak Airport, AK4 mi36 minS 610.00 miOvercast41°F35°F79%1013.8 hPa

Link to 5 minute data for PADK

Wind History from ADK (wind in knots)
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Last 24hrCalmCalmCalmS3SW4CalmCalmCalmCalmE3SE5SE4--E5E5SE6SE6E4E5E4E4E5CalmS6
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Tide / Current Tables for Finger Bay, Kuluk Bay, Adak Island, Alaska
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Finger Bay
Click for Map
Tue -- 03:18 AM HDT     3.14 feet High Tide
Tue -- 06:58 AM HDT     Sunrise
Tue -- 07:15 AM HDT     Moonrise
Tue -- 10:01 AM HDT     New Moon
Tue -- 12:51 PM HDT     0.05 feet Low Tide
Tue -- 10:28 PM HDT     Sunset
Tue -- 10:47 PM HDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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333.13.13.132.82.41.91.30.80.40.100.20.50.91.41.92.42.733.23.3

Tide / Current Tables for Clam Lagoon, Kuluk Bay, Adak Island, Alaska
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Clam Lagoon
Click for Map
Tue -- 04:32 AM HDT     2.45 feet High Tide
Tue -- 06:58 AM HDT     Sunrise
Tue -- 07:14 AM HDT     Moonrise
Tue -- 10:01 AM HDT     New Moon
Tue -- 03:03 PM HDT     0.04 feet Low Tide
Tue -- 10:28 PM HDT     Sunset
Tue -- 10:47 PM HDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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2.32.32.32.42.42.42.42.321.71.410.60.30.100.10.40.71.11.61.92.22.4

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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