Tuesday, August21, 2018 L-36.com


Marine Weather and Tides
Atka, AK

Version 3.4
What's New / NOTES
7/21/2018 Trying to make page Mobile Friendly

Sunrise 6:24AMSunset 9:40PM Tuesday August 21, 2018 4:20 AM AKDT (12:20 UTC) Moonrise 5:29PMMoonset 1:03AM Illumination 76% Phase: Waxing Gibbous; Moon at 10 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


7 Day Forecast for Marine Location Near Atka, AK
   Hourly   EDIT   Help
location: 52, -175.32     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxak68 pafc 211141
afdafc
southcentral and southwest alaska forecast discussion
national weather service anchorage ak
341 am akdt Tue aug 21 2018

Analysis and upper levels
An upper level trough extends through southwest alaska and into
the western gulf with an embedded low southeast of kodiak island.

This trough is one of the factors that is helping drive a long
fetch of precipitable water up from the pacific ocean into the
north gulf coast as shown by satellite imagery. The result is rain
throughout southcentral alaska with the heaviest amounts around
prince william sound. Further west, another system is over the
western bering with its front extending through the central
aleutians.

Model discussion
The models are in good agreement through the mid term with the
main synoptic features. The struggles are with localized concerns
like downsloping with the southerly flow. Because of this the high
res models were preferred.

Aviation
Panc... Light winds will persist.VFR conditions will last through
the early morning before ceilings drop later this morning as a
trough moves over the area from the south. After the trough
passes, ceilings will rise again this afternoon.

Short term forecast southcentral alaska (days 1 and 2)
The upper level trough over the gulf this morning will push
through southcentral during the day today. The very moist jet
stream will weaken and push northeast of the area in the
afternoon. Conditions should then begin to slowly improve from
southwest to northeast. Weak cyclonic flow aloft however will
allow for clouds and showers to continue tonight. On Wednesday an
upper level ridge will build over the area, but low level
conditions will still be quite moist, and considerable clouds will
linger. Some fog could develop Wednesday morning as well. The
ridge will then slide east Wednesday night, with southwesterly
flow aloft bringing increasing chances of showers.

Short term forecast southwest alaska (days 1 through 3)
The weather pattern will stay generally wet and cool for southwest
alaska for the next couple of days. An upper level trough
currently rotating onshore will continue to bring rain and
showers to the area through Tuesday. A flat transient ridge will
build in from the west Tuesday night and Wednesday tapering off
showers but bringing a fog and low stratus concern to the area.

The leading edge of the next frontal system will reach the
kuskokwim delta early Wednesday with additional troughs and
following Wednesday afternoon through Thursday.

Short term forecast bering sea aleutians (days 1 through 3)
The large vertically stacked low centered east of the kamchatka
peninsula will track slowly east to the central bering through
Wednesday with a variety of troughs rotating around it. The low
will remain in this general location and gradually fill through
Thursday. The next developing low pressure system will approach
the central aleutians from the south Thursday night.

Long term forecast (Friday through Monday)
An active pattern will start off the long term period on Friday as
a vigorous short wave trough slides east across the southern
mainland bringing another round of widespread rain to the region.

An upper low over the bering will follow closely behind the first
system Friday evening into Saturday morning and track across
western and southcentral alaska bringing more rain to the area.

There are some timing discrepancies regarding how fast the system
exits the region, with the ec being a bit quicker, but regardless
there should be a drying trend across the southern mainland by
Saturday afternoon as an upper level ridge builds in from the
north pacific.

By the end of the weekend models are coming into better agreement
as a strengthening low enters the western bering, aided by energy
from a tropical system being entrained up from the south pacific.

The low looks to be supported by a strong southerly jet that will
tap into subtropical moisture bringing a decent plume of
moisture, or atmospheric river, across the aleutian chain, into
the bering, and eventually into southwest alaska by the beginning
of next week. There is still a fair amount of uncertainty in how
far east this system will push, which is dependent on the location
of the downstream ridge axis.

Afc watches warnings advisories
Public... Flood advisory... 135.

Marine... None.

Synopsis and model discussion... Dk
southcentral alaska... Bl
southwest alaska bering sea aleutians... Jr
long term... Kvp


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
ADKA2 - 9461380 - Adak Island, AK 70 mi38 min SSW 24 G 29 53°F 46°F1007.3 hPa

Wind History for Adak Island, AK
(wind in knots)    EDIT      (on/off)   Help
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
12
AM
1
AM
2
AM
3
AM
Last
24hr
W7
G11
NW7
W14
G18
NW4
G8
W8
G11
W11
G14
W14
W11
G18
SW16
G20
W20
SW20
SW19
G25
SW23
G28
W17
G24
SW15
G22
S14
G19
SW21
SW22
G29
SW30
SW23
G28
SW24
G33
SW20
G26
SW23
G29
SW21
G31
1 day
ago
SW1
SW7
--
--
SW4
SW2
--
W9
W4
W6
W4
SW8
G11
S12
G18
S20
SE14
S17
S13
G17
S12
G15
W12
W16
W15
W13
W13
G16
W7
2 days
ago
N9
G13
NE6
G9
N7
G12
NE5
G8
N11
G14
N11
G15
N12
G17
N12
G18
N13
G19
N14
G20
N17
G22
N16
G20
N13
G18
N14
G19
NE12
G17
NE15
NE11
G15
N5
G8
S3
S6
SW7
S4
--

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Adak Island, Adak Airport, AK71 mi24 minSSW 18 G 2210.00 miLight Rain and Breezy56°F52°F87%1007.2 hPa

Wind History from ADK (wind in knots)
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
12
AM
1
AM
2
AM
3
AM
Last 24hrW6W8W8W8W5W8W11W10W14SW18
G21
SW19SW22
G25
SW23
G30
SW22
G28
SW11SW10S10
G18
--SW25
G32
SW27
G32
SW22
G35
S18
G31
SW13
G19
SW18
G22
1 day agoW3SW4NE3CalmCalmSW5SE4SW8W4W6S5W11S13S15S13S11S13S11W16SW13SW13W13SW16W13
2 days agoN13N11N12N14N10N13
G21
N15
G19
N18N17
G21
N17
G22
N13
G19
N17
G23
N15
G22
N14N13N14N11N14
G19
N10SE54CalmS6Calm

Tide / Current Tables for Atka Pass, east end, Atka Island, Alaska
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Atka Pass
Click for Map
Tue -- 03:03 AM HDT     Moonset
Tue -- 06:59 AM HDT     -0.24 feet Low Tide
Tue -- 07:35 AM HDT     Sunrise
Tue -- 07:27 PM HDT     Moonrise
Tue -- 09:51 PM HDT     Sunset
Tue -- 11:45 PM HDT     4.52 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
4.54.13.42.51.50.6-0-0.2-0.10.30.91.62.22.83.23.43.63.63.73.83.94.14.34.5

Tide / Current Tables for Bechevin Bay, Atka Island, Alaska
   EDIT      (on/off)   Help   One Week of Data
Bechevin Bay
Click for Map
Tue -- 12:42 AM HDT     3.48 feet High Tide
Tue -- 03:02 AM HDT     Moonset
Tue -- 07:34 AM HDT     Sunrise
Tue -- 09:13 AM HDT     -0.19 feet Low Tide
Tue -- 07:27 PM HDT     Moonrise
Tue -- 09:51 PM HDT     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
3.43.53.332.41.71.10.40-0.2-0.10.20.71.21.72.22.52.72.72.82.82.93.13.2

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_P
GOES Local Image of Alaska    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Ground Weather Radar Station Bethel, AK
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Disclaimer:
The information on this web site has not been checked for accuracy. It is for entertainment purposes only and should be independently verified before using for any other reason. There are five sources. 1) Documents and manuals from a variety of sources. These have not been checked for accuracy and in many cases have not even been read by anyone associated with L-36.com. I have no idea of they are useful or accurate, I leave that to the reader. 2) Articles others have written and submitted. If you have questions on these, please contact the author. 3) Articles that represent my personal opinions. These are intended to promote thought and for entertainment. These are not intended to be fact, they are my opinions. 4) Small programs that generate result presented on a web page. Like any computer program, these may and in some cases do have errors. Almost all of these also make simplifying assumptions so they are not totally accurate even if there are no errors. Please verify all results. 5) Weather information is from numerious of sources and is presented automatically. It is not checked for accuracy either by anyone at L-36.com or by the source which is typically the US Government. See the NOAA web site for their disclaimer. Finally, tide and current data on this site is from 2007 and 2008 data bases, which may contain even older data. Changes in harbors due to building or dredging change tides and currents and for that reason many of the locations presented are no longer supported by newer data bases. For example, there is very little tidal current data in newer data bases so current data is likely wrong to some extent. This data is NOT FOR NAVIGATION. See the XTide disclaimer for details. In addition, tide and current are influenced by storms, river flow, and other factors beyond the ability of any predictive program.