Sunday, March26, 2017 L-36.com


Marine Weather and Tides
Mud Bay, AK

Version 3.4
What's New / NOTES
5/19/2016 - There were issues with the 3 day airport observation history. I switched to another data source. Let me know if you see any issues with the data feeds.
3/12/2015 - Added section for Gulf current for users in the GMZ marine zones.
This was requested by a user. If you have requests, please let me know.

Sunrise 6:35AMSunset 7:29PM Sunday March 26, 2017 3:06 AM AKDT (11:06 UTC) Moonrise 5:41AMMoonset 4:47PM Illumination 1% Phase: Waning Crescent; Moon at 28 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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PKZ012 Northern Lynn Canal- 311 Pm Akdt Sat Mar 25 2017
Tonight..S wind 10 kt becoming N in the evening and increasing to 20 kt late. Seas 2 ft building to 4 ft late.
Sun..N wind 20 kt. Seas 4 ft.
Sun night..NE wind 20 kt. Seas 4 ft. Snow late.
Mon..SE wind 20 kt. Seas 4 ft. Rain and snow.
Mon night..S wind 10 kt. Seas 2 ft or less. Rain and snow.
Tue..S wind 15 kt. Seas 3 ft.
Wed..S wind 20 kt. Seas 4 ft.
Thu..S wind 15 kt. Seas 3 ft.

7 Day Forecast for Marine Location Near Mud Bay, AK
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location: 59.17, -135.4     debug


Area Discussion for -
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Fxak67 pajk 260732 cca
afdajk
southeast alaska forecast discussion... Corrected
national weather service juneau ak
1132 pm akdt Sat mar 25 2017

Short term An upper trof will remain over the gulf through sun.

A developing low SW of haida gwaii will move N to the far SE gulf
by late Sun afternoon. An occluded front will move N into the se
gulf and southern panhandle sun.

Main forecast concerns will be precip potential/ptype/amounts, and
winds. Scattered to locally numerous showers are over the eastern
gulf and much of SE ak late this afternoon. The showers will
decrease from the S this evening, with the far N area getting out
of the showers by Sun morning as low level flow becomes more
offshore ahead of approaching low and front. However, steadier
precip with the front will move into the S late tonight then try
to move further N sun, but the offshore flow will tend to break
up the precip area as it reaches the N half. E mtn slopes will be
favored for precip over the S and central areas especially closer
to the outer coast. The N should dry out Sun afternoon although
there could be a few sprinkles around the icy strait area.

Ptype will be mainly diurnally driven. Warm boundary layer temps
in the afternoon will generally mean rain or a mix, except in the
heaviest showers where more snow may occur. As temps cool
tonight, precip will become more snow especially over the N half
of the area. Then on sun, any snow should be mostly during the
early morning before temps warm well above freezing. Snowfall will
be highest around yakutat where more frequent snow showers could
lead to an inch or 2 of snow by late tonight. Elsewhere over the
n, snowfall should be an inch or less, with most places getting
little accumulation.

Winds will be increasing over the SE gulf later tonight and sun
as occluded front moves in. Expect strongest winds over the far se
gulf Sun afternoon where gales can be expected. Much of the
remaining E gulf from cross sound southward will see winds pick
up to 25-30 kt by Sun morning. Over the inner channels, winds will
become more offshore and increase later tonight, with SCA level
winds likely out of cross sound and parts of clarence strait. Rest
of the area should see winds pick up to the 15-20 kt range by
late tonight and continue into sun.

Long term At upper levels southwesterly flow will last through
mid week with a low extending down from the ak interior and
ridging off the western conus. Surface low mentioned in the short
term will continue its northwesterly track across the ak gulf with
associated occluded front moving over the panhandle. The low will
weaken by the time it reaches prince william sound Monday
evening. Onshore flow will keep chance of precip over the
panhandle, mainly for the northern half as ridging moves over the
southern panhandle resulting in drier more spring like conditions.

Next waves begin to move into the gulf mid week with first low
tracking northeastward toward prince william sound followed by a
more significant low and front moving over the gulf Thursday
evening into Friday. Better chance of more significant rainfall
with this later front. Began a trend to raise low temps due to
more southerly flow later in the week which will likely begin a
transition to more rain than snow.

Still fair amount of model spread for the Sunday night into
Monday low. Used a blend of gfs/nam which were in better
alignment but did shift the low center further to the west and
north. For later time periods ensembles were still in line with
previous forecast so little change was made. Positive precipitable
water anomaly and 850 mb temps with the late week system add to
likelihood of a more significant rain event. Forecast confidence
is average.

Ajk watches/warnings/advisories
Public... None.

Marine... Gale warning for pkz041-042.

Small craft advisory for pkz021-022-036-043-051.

Rwt/prb
visit us at http://

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
EROA2 - Eldred Rock, AK 17 mi43 min WSW 8 G 8.9 36°F 1006.5 hPa34°F
SKTA2 - 9452400 - Skagway, AK 20 mi49 min 32°F 40°F1007.9 hPa
BLTA2 - Bartlet Cove AK 56 mi41 min N 4.1 G 8 34°F 1008.1 hPa

Wind History for Juneau, AK
(wind in knots)    EDIT      (on/off)   Help
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Haines, Haines Airport, AK8 mi73 minWNW 82.50 miLight Snow Fog/Mist31°F28°F89%1008.8 hPa
Skagway, AK22 mi74 minN 00.50 miSnow Fog34°F33°F97%1008.5 hPa

Wind History from AHN (wind in knots)
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Last 24hrNW14
G19
NW10NW8
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NW11NW10W14W13W11W83SE6SE10SE6CalmNW7W9W9W10NW11NW8W8NW8
1 day agoNW11NW14NW14
G21
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2 days agoNW12
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NW12NW10NW12NW10NW12NW13NW9W6SE5SE5SE5CalmCalmW3CalmW5NW7NW6NW6NW9NW9NW10

Tide / Current Tables for Chilkat Inlet, Lynn Canal, Alaska
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Chilkat Inlet
Click for Map
Sun -- 12:51 AM AKDT     16.11 feet High Tide
Sun -- 06:41 AM AKDT     Moonrise
Sun -- 06:44 AM AKDT     Sunrise
Sun -- 06:51 AM AKDT     0.92 feet Low Tide
Sun -- 12:51 PM AKDT     17.20 feet High Tide
Sun -- 05:47 PM AKDT     Moonset
Sun -- 07:08 PM AKDT     -1.16 feet Low Tide
Sun -- 07:31 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
15.416.114.912.18.24.51.70.92.45.79.913.816.417.215.912.78.33.80.4-1.1-0.22.87.211.7

Tide / Current Tables for Cove Point, Berner's Bay, Lynn Canal, Alaska
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Cove Point
Click for Map
Sun -- 12:53 AM AKDT     15.95 feet High Tide
Sun -- 06:38 AM AKDT     Moonrise
Sun -- 06:43 AM AKDT     Sunrise
Sun -- 06:52 AM AKDT     0.94 feet Low Tide
Sun -- 12:53 PM AKDT     17.03 feet High Tide
Sun -- 05:46 PM AKDT     Moonset
Sun -- 07:09 PM AKDT     -1.19 feet Low Tide
Sun -- 07:29 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
15.215.914.8128.34.51.812.45.69.713.616.21715.812.68.33.90.4-1.2-0.32.7711.5

Weather Map and Satellite Images
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Weather Map
wmap_P
IR Satellite Image from GEOS
west_satellite

GOES Local Image of PacificNorthwest    EDIT
Geos

Wind Forecast for (7,2,3,4)
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Ground Weather Radar Station Biorka Is., AK
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weather_mapweather_map weather_map

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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.