Sunday, April18, 2021
Privacy Policy
L-36.com

Marine Weather and Tides
Nikolski, 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 6:24AMSunset 9:32PM Sunday April 18, 2021 1:38 PM AKDT (21:38 UTC) Moonrise 8:47AMMoonset 1:43AM Illumination 44% Phase: First Quarter Moon; Moon at 7 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
    EDIT      (on/off)   Help
PKZ174 Nikolski To Seguam Island Pacific Side- 343 Am Akdt Sun Apr 18 2021
.gale warning Monday...
Today..N wind 15 kt. Seas 5 ft.
Tonight..N wind 25 kt. Seas 7 ft.
Mon..N wind 35 kt. Seas 10 ft. Rain.
Mon night..N wind 30 kt. Seas 10 ft.
Tue..NE wind 25 kt. Seas 9 ft.
Wed..N wind 25 kt. Seas 13 ft.
Thu..NE wind 20 kt. Seas 12 ft.


7 Day Forecast for Marine Location Near Nikolski, AK
   Hourly   EDIT   Help
location: 52.92, -169.17     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXAK68 PAFC 181307 AFDAFC

Southcentral and Southwest Alaska Forecast Discussion National Weather Service Anchorage AK 507 AM AKDT Sun Apr 18 2021

ANALYSIS AND UPPER LEVELS.

The stretch of very quiet and generally dry conditions continues across much of the region this morning. The large scale upper levels also continue to display a sluggish, blocked regime across the breadth of Alaska and beyond. A roughly 575 decameter 500 mb omega ridge centered over the Yukon now extends southeast all the way to the far western CONUS. This is the primary driver of the normal to above normal temperatures recently observed across mainland AK, particularly across the Mat-Su Valleys. Both Willow and Talkeetna surprisingly managed to breach 60 F on Saturday despite the now rapidly melting snow cover in place. Farther west, a deep, complex longwave with several embedded lows and shortwaves continues to sit along an axis stretching from the Bering to well south of the Gulf across the North Pacific. An easterly wave transiting the Western Gulf and AKPen is also helping to advect a plume of mid to upper level moisture into the Southwest. This is bringing a broad swath of mainly altostratus and cirrus cloud cover across the Southwest and AKPen within this zone of southeasterly flow, along with a few scattered rain showers drifting northwest.

Out west across the Bering/Aleutians, a stalled front draped from the far northern Bering to near Adak continues to disintegrate as the winds weaken to small craft or lower on both sides of the boundary. An axis of mainly light rain still follows much of this weakening front, but the brunt of the impacts from this system or otherwise diminishing. Elsewhere, amorphous patches of low marine stratus are drifting across the Bering underneath ridging present both west and east of the front.

MODEL DISCUSSION.

Models remain in good agreement for most large scale features through midweek. Some differences do begin to crop up with the progression of a wave digging southeast from the northern interior, with models depicting varying degrees of interaction between this shortwave and another easterly wave tracking across the AKPen on Monday and Tuesday. Depending on how far south and west the trailing portion of the shortwave move across, showery precipitation potential may briefly return to interior Southcentral late on Tuesday. This could then be followed by a shot of somewhat colder air, especially through the Copper River Basin, by Tuesday night. The NAM and GFS are currently the most aggressive with the cooling/CAA going into Tuesday and Wednesday. The ECMWF/Canadian show only modest cooling, arcing the shortwave into the Yukon much farther north. This could lead to some challenges in resolving temperatures over Southcentral later this week.

AVIATION. PANC . VFR conditions and light winds will continue.

SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3).

A strong upper-level ridge remains anchored along the Al-Can border and is one piece of the now well-advertised blocking pattern that has set up over the state. The ridge will remain in place through late Monday before retreating south over the Canadian Rockies. The second piece is an upper-level low situated over the Northern Pacific. This feature will lift northwest toward the AKPEN by Monday in the wake of a weaker shortwave moving north out ahead of the main low.

This first shortwave will continue to bring clouds and occasional showers to Kodiak Island through the morning hours before it lifts into Southwest Alaska. By Monday, a second wave and associated surface front will move north into the Gulf with another round of light rain for Kodiak. The upper-level shortwave extending from the low moves over the northern Gulf along with the surface trough by Monday night, bringing a chance for light rain along the Southcentral coast. The southerly flow across the Gulf will keep clouds and precipitation along the coast through late Tuesday as the surface trough and upper-level shortwave stall.

For the interior, the ridge will keep conditions clear and dry, with only occasional high clouds passing overhead. High temperatures Sunday and Monday will again push into the 50s, with lower 60s possible in parts of the Mat-Su Valleys. An upper-level trough and associated cold front will dive southeast across the interior beginning Monday night as the aforementioned ridge retreats. The front will likely bring a few mixed rain/snow showers, especially for the higher elevations. The best chance for precipitation looks to be over the Talkeetna Mountains and Copper Rover Basin on Tuesday. This system will exit the region by Wednesday morning taking the stalled trough along the coast with it. High pressure builds back in by mid-week as the blocking pattern looks to re-establish itself.

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

A North Pacific low moves towards the Eastern Aleutians, forcing the upper level ridge north late Monday morning. A tighter pressure gradient sets up between the ridge and trough, producing gusty easterly winds through the gaps of the Alaska Range and across parts of Bristol Bay. This will also allow for stronger northerly winds across the Kuskokwim Delta. Daytime temperatures look to remain in the mid-40s to mid-50s across Southwest Alaska through the forecast period, with overnight lows in the mid-30s. Moderate chances for rain continue along the AKPen and Coastal Bristol Bay today, with the highest chance in the early morning. Precipitation will most likely be all rain for these areas and will be relatively short-lived.

SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 and 2).

The N-S frontal boundary over Adak continues shearing apart today, allowing precip probabilities across the Western/Central Aleutians to continue to decrease. Winds become northerly across most of the Bering beginning Sunday night when a North Pacific low moves just south of the Eastern Aleutians. This will create gusty northerly winds through the bays and passes of the Central and Eastern Aleutian Islands, as well as gale force winds south of the AKPen, especially out of Shelikof Strait. Rain showers across the Eastern Aleutians and Southern AKPen are expected to persist over the next couple days, with Unalaska looking to get the brunt of the precipitation. Most of the impacts will be confined to the southern Bering and North Pacific. Widespread small craft winds out of the northeast are expected across the Bering north of the low. Additionally, gales are likely in the Northern Bering between Saint Matthew Island and Nunivak Island Monday night.

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

There is a chance for some Gales to develop south of the Alaska Peninsula and Eastern Aleutians Tue through Wed. Other than that, expect winds less than 35 kts and seas less than 20 ft for the Day 3 through 5 period.

.Long Term Forecast (Days 4 through 7: Wednesday through Saturday) .

Subsident dry air and increased warmer temperatures will persist as a result of a dominant presence of a surface to high pressure over the region. Short-lived gales from a frontal system extending over the central Aleutians will gradually taper off Wednesday afternoon. Overall, it will be a quiet forecast period.

AFC WATCHES/WARNINGS/ADVISORIES. PUBLIC . NONE. MARINE . Gale Warning: 131,132,138,150,155,173-176. FIRE WEATHER . NONE.



SYNOPSIS AND MODEL DISCUSSION . AS SOUTHCENTRAL ALASKA . TM SOUTHWEST ALASKA/BERING SEA/ALEUTIANS . KM MARINE/LONG TERM . CB


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
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
OLSA2 - 9462450 - Nokolski, AK 16 mi51 min NNW 5.1 G 7 41°F 1021.9 hPa
NKLA2 17 mi27 min NNW 11 G 19 37°F 31°F

Wind History for Nikolski, AK
(wind in knots)    EDIT      (on/off)   Help
1
PM
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
Last
24hr
E3
E15
G19
SE16
E14
E21
E11
G15
E15
E11
E10
E7
E10
E8
G11
E5
E7
NE6
NE10
E7
E9
E6
NE4
NE3
NW5
NW8
N11
1 day
ago
N2
NW5
S7
G10
S10
SE8
G11
S8
S6
G9
SW6
SE3
SE5
G8
E4
SE7
SE13
E7
SE2
SE2
SE4
E5
E7
E8
E11
E12
G15
E14
G17
E18
2 days
ago
N25
N28
N31
NW30
N23
G29
N26
N24
G30
N22
N18
G23
N23
N29
N29
N20
G28
N12
G15
N17
G21
N13
G19
N19
G23
NE8
NE8
NE8
NE6
N5
N4
G7
N5

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Unalaska, Unalaska Airport, AK155 mi43 minN 1310.00 miOvercast39°F34°F82%1021.4 hPa

Link to 5 minute data for PADU

Wind History from ADU (wind in knots)
2
PM
3
PM
4
PM
5
PM
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
Last 24hrCalmCalmSE3CalmE9S8SE8SE5SE4S4CalmSE3CalmN3N3NW3CalmCalmCalmN6N7N12NW7N13
1 day agoN7
G20
N11
G16
NW9NW7NW6NW4NW4NW6W33N3CalmCalmCalmCalmS3CalmCalmCalmCalmCalmCalmSW3Calm
2 days agoN12
G22
NE9
G17
N17
G22
N16N11
G26
N14
G21
E8
G17
N13
G18
6
G20
N11
G19
N10
G14
N12
G17
6N12
G23
NW8
G20
--NE11
G20
N155
G18
5N12
G16
N12
G20
N11
G16
N8

Tide / Current Tables for Adugak Islands, Umnak Island, Alaska
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Adugak Islands
Click for Map
Sun -- 01:28 AM AKDT     3.51 feet High Tide
Sun -- 04:43 AM AKDT     Moonset
Sun -- 07:05 AM AKDT     2.96 feet Low Tide
Sun -- 08:10 AM AKDT     Sunrise
Sun -- 08:57 AM AKDT     2.76 feet High Tide
Sun -- 11:46 AM AKDT     Moonrise
Sun -- 05:14 PM AKDT     -0.25 feet Low Tide
Sun -- 10:22 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
3.33.53.53.43.23.1332.92.82.72.52.21.71.10.5-0-0.2-0.20.20.71.322.6

Tide / Current Tables for Cape Sagak, Umnak Island, Alaska
   EDIT      (on/off)   Help   One Week of Data
Cape Sagak
Click for Map
Sun -- 04:42 AM AKDT     Moonset
Sun -- 04:45 AM AKDT     2.74 feet Low Tide
Sun -- 06:27 AM AKDT     3.25 feet High Tide
Sun -- 08:09 AM AKDT     Sunrise
Sun -- 11:46 AM AKDT     Moonrise
Sun -- 02:54 PM AKDT     -0.23 feet Low Tide
Sun -- 10:22 PM AKDT     Sunset
Sun -- 11:35 PM AKDT     4.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

12
am
1
am
2
am
3
am
4
am
5
am
6
am
7
am
8
am
9
am
10
am
11
am
12
pm
1
pm
2
pm
3
pm
4
pm
5
pm
6
pm
7
pm
8
pm
9
pm
10
pm
11
pm
43.63.22.92.82.83.23.23.12.82.31.710.4-0.1-0.2-00.41.11.92.73.43.84.1

Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of Alaska    EDIT
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.
Link to Loop

Other links: GEOS-West     Contential US     Full GOES-East
Ground Weather Radar Station




Please read website Cookie, Privacy, and Disclamers by clicking HERE.