Tuesday, March28, 2017 L-36.com


Marine Weather and Tides
Ketchikan, 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 7:11AMSunset 8:07PM Tuesday March 28, 2017 4:24 PM PDT (23:24 UTC) Moonrise 7:10AMMoonset 8:22PM Illumination 2% Phase: Waxing Crescent; Moon at 1 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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PKZ036 Clarence Strait- 428 Am Akdt Tue Mar 28 2017
Today..NW wind 10 kt becoming se 15 kt in the afternoon. Seas 3 ft...except 6 ft near ocean entrances. Rain early in the morning.
Tonight..S wind 15 kt. Seas 3 ft...except 5 ft near ocean entrances.
Wed..S wind 10 kt. Seas 2 ft or less...except 5 ft near ocean entrances.
Wed night..SE wind 15 kt. Seas 3 ft.
Thu..SE wind 25 kt. Seas 5 ft.
Fri..SE wind 25 kt. Seas 7 ft.
Sat..SE wind 20 kt. Seas 4 ft.

7 Day Forecast for Marine Location Near Ketchikan, AK
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location: 55.22, -132.1     debug


Area Discussion for -
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Fxak67 pajk 281313
afdajk
southeast alaska forecast discussion
national weather service juneau ak
513 am akdt Tue mar 28 2017

Short term Satellite imagery and surface analysis indicate a
low SW of haida gwaii and another low off the ak peninsula. The
first low will move NE into bc this morning. The other low will
drift NW with a series of impulses propagating nwd across the gulf
into the N gulf coast. Models in decent agreement with the
strongest impulse impacting the gulf coast overnight into wed.

This scenario will keep most precip confined to areas W of cape
fairweather and southern panhandle with sct-num showers across
majority of aor. Model solutions continue to diverge with the
strength and track of the low SW of haida gwaii but general
consensus is for the low to move into bc remaining S of dixon
entrance or just clipping southern portions of misty fjords.

Advisory level winds/seas will prevail over the gulf today as
active weather persists. Expect advisories to develop across cross
sound due to building seas and rising ely winds. Also, marginal
advisory level southerlies over N lynn this morning will diminish
by late this morning as the gradient relaxes. Otherwise, some
breaks in sky cover early this morning combined with light winds
has allowed some patchy fog to develop over the inner channels and
expect this to dissipate by mid to late morning. Confidence is
above average in precip along the N gulf coast, outer coast N of
pasi and the northern panhandle tonight with lower chances over
the central/southern panhandle. With lower pops and greater
potential for some breaks in clouds, added some patchy fog to
inner channels over the central and southern panhandle.

Given the persistent sw, continue to think rain will be primary
ptype with snow over the higher elevations over N and heavier
showers moving onshore the N gulf coast. Minor accumulations
possible, but would be surprised if more than an inch or two.

Forecast in good agreement with model guidance, so used ec/nam for
any adjustments. Forecast confidence remains average.

Long term
There is a small change in timing on Wednesday for the front that
is moving into the eastern gulf. Model runs have increased the
speed this front is moving across the gulf and this is reflected
in the current forecasts. In addition, wind speeds will be
stronger along the outer waters with this front with a large swath
of gales across most of these waters.

The upper level trough will move through southeast ak in
conjunction with the front and that will allow an upper level
ridge to briefly move across southeast on Thursday. While it
appears that there will still be a few rain/snow showers lingering around
the area Thursday, this ridge may be potent enough to suppress
most of the precipitation and might even provide a break or two
in the clouds. This possibility is being indicated on the 06z
model runs on both the NAM and gfs.

Models are consistent with bringing the next system into southeast
Thursday night and precipitation persisting with this one through
most of the weekend across the region.

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

Marine... Small craft advisory for pkz021-022-031-036-053. &&
bc/ez
visit us at http://

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KECA2 - 9450460 - Ketchikan, AK 26 mi55 min SSE 7 G 8.9 45°F 43°F1009.4 hPa
46145 - Central Dixon Entrance Buoy 61 mi85 min SE 7.8 G 9.7 43°F 44°F6 ft1009 hPa (+1.5)
LCNA2 - Lincoln Rock, AK 66 mi75 min S 5.1 G 5.1 43°F 1007.1 hPa39°F

Wind History for Ketchikan, AK
(wind in knots)    EDIT      (on/off)   Help
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SE10
G16
SE12
G17
SE8
G12
SE11
E8
G11
E4
G7
E4
G9
SE6
E1
N3
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N1
N3
N1
W2
NW1
G4
W2
NW5
NW5
SE4
G7
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G8
1 day
ago
SE7
G15
SE5
G9
SE10
G24
SE3
E8
G11
E9
G20
SE6
G10
E11
G21
E8
G17
SE10
G17
SE9
G16
E9
G13
E8
G13
SE7
G15
SE12
G17
SE11
G20
SE14
G20
SE12
G18
SE14
G21
SE12
G18
SE11
G20
SE13
G26
SE9
G15
SE11
G14
2 days
ago
SE8
SE7
G10
SE4
G8
SE4
G7
SE9
G16
SE8
G12
SE9
G12
SE11
G15
SE10
G15
SE8
G11
SE8
G13
SE6
G10
NE6
G11
NE8
G12
NE10
G19
NE8
G16
NE2
G7
NE4
G11
NE10
G14
NE5
G13
S6
G15
SE3
G14
SE1
E5
G12

Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Ketchikan, Ketchikan International Airport, AK23 mi32 minSE 910.00 miOvercast45°F39°F83%1009.6 hPa

Wind History from AKT (wind in knots)
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Last 24hrSE15
G24
SE12S66SE9SE12SE6SE9SE5S4CalmCalmCalmNW3CalmCalmCalmNW3NW4NW6NW5NW6SE7SE9
1 day agoSE8E10SE12S54S6S8S8S8SE12S7S8SE8S8SE9SE10SE12
G22
SE12
G19
SE11SE10
G18
SE18
G23
SE16
G26
SE19SE14
G22
2 days agoSE6SE9SE6SE6S5S5SE10SE9SE9SE10SE9SE15
G21
S4S4S5S5S65
G15
SE10
G17
3SE4SE11
G18
E7E7

Tide / Current Tables for Lancaster Cove, Cholmondeley Sound, Alaska
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Lancaster Cove
Click for Map
Tue -- 01:39 AM AKDT     16.80 feet High Tide
Tue -- 06:28 AM AKDT     Sunrise
Tue -- 07:09 AM AKDT     Moonrise
Tue -- 07:43 AM AKDT     -1.44 feet Low Tide
Tue -- 01:55 PM AKDT     16.82 feet High Tide
Tue -- 07:18 PM AKDT     Sunset
Tue -- 07:58 PM AKDT     -1.40 feet Low Tide
Tue -- 08:21 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
13.916.316.714.8116.42-0.8-1.40.54.18.612.915.816.815.512.17.63-0.2-1.4-0.13.17.5

Tide / Current Tables for Niblack Anchorage, Moira Sound, Alaska
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Niblack Anchorage
Click for Map
Tue -- 01:39 AM AKDT     16.30 feet High Tide
Tue -- 06:29 AM AKDT     Sunrise
Tue -- 07:09 AM AKDT     Moonrise
Tue -- 07:47 AM AKDT     -1.44 feet Low Tide
Tue -- 01:55 PM AKDT     16.32 feet High Tide
Tue -- 07:18 PM AKDT     Sunset
Tue -- 08:02 PM AKDT     -1.40 feet Low Tide
Tue -- 08:21 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
13.415.816.214.410.86.32.1-0.7-1.40.33.88.212.415.316.31511.87.53.1-0.2-1.4-0.32.87.1

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 (19,4,5,8)
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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.