Monday, August3, 2020
Privacy Policy
L-36.com


Marine Weather and Tides
Coffman Cove, AK

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 4:53AMSunset 9:14PM Monday August 3, 2020 10:10 AM AKDT (18:10 UTC) Moonrise 9:33PMMoonset 4:34AM Illumination 100% Phase: Full Moon; Moon at 14 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
PKZ035 Sumner Strait- 454 Am Akdt Mon Aug 3 2020
.small craft advisory late tonight...
Today..Light winds becoming sw 15 kt in the afternoon. Seas building to 3 ft in the afternoon. Showers.
Tonight..S wind 15 kt becoming E 25 kt late.late. Seas 3 ft building to 5 ft late. Rain.
Tue..SE wind 25 kt. Seas 5 ft. Rain.
Tue night..S wind 25 kt. Seas 5 ft. Rain.
Wed..S wind 10 kt. Seas 2 ft or less.
Thu..S wind 10 kt. Seas 2 ft or less.
Fri..S wind 15 kt. Seas 3 ft.


7 Day Forecast for Marine Location Near Coffman Cove, AK
   Hourly   EDIT   Help
location: 56.02, -132.92     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
FXAK67 PAJK 031459 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 659 AM AKDT Mon Aug 3 2020

SHORT TERM. /Monday through Tuesday/ The short term remains active with showers continuing today with more steady rain expected for Tuesday as a front moves through. Slight ridging builds over the region through the afternoon ahead of the next weather system moving into the western gulf. The surface ridge axis will be right over the Panhandle keeping moist onshore flow and showers present. By tonight, an area of low pressure in the western gulf moves eastward while swinging a front into the Panhandle late Monday night through early Tuesday morning. As the front approaches, the surface ridge will sharpen increasing southeasterly winds throughout the Inner Channels to 15 to 20 kt. As the front pushes through, expect an area of SCA winds to spread northward overnight through the central gulf and coastal waters. After the frontal passage, the gradient takes on a more easterly component and continues to sharpen with SCA conditions developing in the Southern Inner Channels overnight while winds in Lynn Canal subside due to a more parallel gradient.

The gradient remains tight on Tuesday as a wave rotates around the low in the gulf. This will keep winds over the Inner Channels at 15 to 25 kt through Tuesday night. The strongest winds are expected in the southern Inner Channels and E to W oriented water ways. As the wave rotates northward, precipitation, already ongoing, will increase in intensity especially across the Southern Panhandle and Coast Mountains. A plume of moisture will be drawn northward by an approaching jet streak Tuesday evening with IVT values around 500 pushing into the southern Panhandle. Rain could be locally heavy at times.

Overall forecast confidence is above average as models are all in agreement with the current weather pattern. Used the NAM Nest and hi-res models to increase winds with the approaching front and waves through Tuesday.

LONG TERM. /Wednesday through Monday as of 10 pm Sunday/ Active weather pattern for SE Alaska continues through the long range forecast as series of lows/fronts track into the AK Gulf. For Wednesday the previous days low weakening to an open wave trough as it moves into the SE Gulf. Precipitation and winds will diminishing from north to south was the low exits the region by early Thursday. The northern areas may get bit more drying due to offshore flow as the low center moves towards Dixon Entrance. an dry period will be short lived as the next front, associated with a low pushing into the NE Gulf, crosses over the Eastern Gulf and over the Panhandle Thursday evening into Friday. Expecting approximately 1-1.5 inches of rainfall thru Friday. Strongest winds expected Friday due to the advancing front with gulf winds in the 20 to 30 kt range and inner channels of 10 to 20 kt. Generally cooler temperatures with highs in the low 60s to upper 50s and lows in the low 50s to upper 40s. Beyond the end of the week significant model spread on timing and position of the next feature develops.

Good confidence that SE AK will be in a wet pattern but low confidence in details, even at the start of the long range. Used a blend of GFS/ECMWF for Wednesday but still uncertainty the gulf low position. Getting better resolution for the next front however still used ensemble approach with WPC solution.

AJK Watches/Warnings/Advisories. PUBLIC . None. MARINE . Small Craft Advisory for PKZ035-036-041>043-051-052.



CM/PRB

Visit us at http://www.weather.gov/Juneau


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
LCNA2 - Lincoln Rock, AK 12 mi61 min SE 8 G 8.9 57°F 1014.2 hPa57°F
CDEA2 - Cape Decision, AK 64 mi49 min E 4.1 G 6 57°F 1015.4 hPa55°F
KECA2 - 9450460 - Ketchikan, AK 84 mi53 min ESE 2.9 G 4.1 58°F 59°F1016.2 hPa

Wind History for Ketchikan, AK
(wind in knots)    EDIT      (on/off)   Help
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
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
Last
24hr
S2
G5
S2
G7
SE6
G9
SE8
SE10
G13
SE11
G15
SE10
S4
G7
SE6
SE5
S4
SE2
G5
--
SE4
SE3
SE6
G9
SE6
SE7
SE4
G7
SE2
SE1
S6
SE5
SE2
1 day
ago
SE9
G17
S10
G13
SE6
G16
SE12
G19
SE10
G17
SE10
G16
SE10
G14
SE9
G15
SE5
G9
SE4
--
SE2
N2
SE10
SE6
SE11
G18
SE10
G17
SE10
G14
SE10
G15
S8
G11
SE11
G15
SE13
G16
SE10
G14
SE10
G13
2 days
ago
NW8
NW8
G11
NW9
SE7
G13
SE6
G9
SE8
SE10
SE14
G18
SE6
G12
SE14
G17
SE14
G18
S6
G12
SE9
G12
SE4
G8
NW2
G5
SE8
G18
SE9
G17
SE11
G20
SE14
G21
SE15
G23
SE17
G22
SE15
G22
SE12
G17
SE13
G17

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports. Follow links for more data.
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Klawock - Klawock Airport, AK33 mi2.3 hrsSW 59.00 miOvercast58°F55°F93%1014.6 hPa

Link to 5 minute data for PAKW

Wind History from AKW (wind in knots)
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
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
Last 24hrSW3Calm--CalmCalmSW4SW7SW7SW6S3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmSW5SW5--SW5
1 day agoS8
G16
S12
G17
S12
G17
SE11
G19
SE10S9
G19
SE8
G20
CalmCalmCalmSE4CalmCalmNE3NE3NE4CalmCalmCalmCalmCalmSW4SW3S3
2 days agoSW4SW7CalmCalmCalm--SW6SW13SW73N3CalmCalmNE3--N4CalmCalmNE3CalmSE5--S9
G16
SE8
G17

Tide / Current Tables for Lake Bay, Alaska
   EDIT   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Lake Bay
Click for Map
Mon -- 01:01 AM AKDT     17.10 feet High Tide
Mon -- 04:34 AM AKDT     Moonset
Mon -- 05:00 AM AKDT     Sunrise
Mon -- 07:28 AM AKDT     -2.43 feet Low Tide
Mon -- 07:59 AM AKDT     Full Moon
Mon -- 02:04 PM AKDT     15.03 feet High Tide
Mon -- 07:31 PM AKDT     2.24 feet Low Tide
Mon -- 08:53 PM AKDT     Sunset
Mon -- 09:32 PM AKDT     Moonrise
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
16.117.116.1138.63.8-0.1-2.2-2.1-0.23.37.311.113.91514.111.47.84.52.52.54.27.311

Tide / Current Tables for Exchange Cove, Alaska
   EDIT      (on/off)   Help   One Week of Data
Exchange Cove
Click for Map
Mon -- 01:00 AM AKDT     16.20 feet High Tide
Mon -- 04:34 AM AKDT     Moonset
Mon -- 05:00 AM AKDT     Sunrise
Mon -- 07:31 AM AKDT     -2.43 feet Low Tide
Mon -- 07:59 AM AKDT     Full Moon
Mon -- 02:03 PM AKDT     14.13 feet High Tide
Mon -- 07:34 PM AKDT     2.24 feet Low Tide
Mon -- 08:54 PM AKDT     Sunset
Mon -- 09:34 PM AKDT     Moonrise
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
15.316.215.212.38.13.7-0.1-2.2-2.2-0.42.96.810.413.114.113.310.87.54.42.52.446.910.4

Weather Map
       (on/off)   Help Weather Map
wmap_P
GEOS Local Image of PacificNorthwest    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
Wind Forecast for (14,3,4,5)
      (on/off)   Help

Ground Weather Radar Station Biorka Is., AK
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

Cookie Policy:
This website uses cookies to save your settings. No personal information is saved. I do not collect statistics on your visit. You can disable cookies in your browser if you like but it is not recommended for this site. I do not sell cookies. Go to a bakery for that. In fact I do not sell anything. To disable cookies from L-36.com, please refer to the Help button in your browser.
Privacy Policy:
I do not sell or share any user data or anything else for that matter. The only personal information I save is in the site log which has a line for each page view which includes the IP address your browser sends in the header as well as which page you requested. I use this to block hackers and other bad actors. I do not use this raw data to create profiles on users. I periodically delete the log files. If you are subject to CCPA, Google ads on this site will not be based on your past behavior so you will likely not see an ad for a lawn mower just because you looked for one at a big box website. I do not believe this site is subject to CCPA but I am doing what I can to follow the guidelines anyway.
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 numerous 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.