Monday, June26, 2017 L-36.com


Marine Weather and Tides
Kasaan, AK

Version 3.4
What's New / NOTES
6/25/2017 - NOAA is having a major issue that impact the 7 day forecast load times. Many users are reporting problems. The issue has been reported.
5/23/2017 - Worked with NOAA again to speed up the 7 day forecast load times. Thanks to them for being responsive.
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.

Sunrise 4:58AMSunset 10:16PM Monday June 26, 2017 8:44 PM PDT (03:44 UTC) Moonrise 7:42AMMoonset 11:21PM Illumination 10% Phase: Waxing Crescent; Moon at 3 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- 316 Pm Akdt Mon Jun 26 2017
Tonight..NW wind 15 kt. Seas 3 ft.
Tue..NW wind 15 kt. Seas 3 ft.
Tue night..NW wind 15 kt. Seas 3 ft.
Wed..NW wind 15 kt. Seas 3 ft.
Wed night..NW wind 15 kt. Seas 3 ft.
Thu..S wind 15 kt. Seas 3 ft.
Fri..SE wind 10 kt. Seas 3 ft.
Sat..Light winds becoming nw 10 kt. Seas 2 ft or less.

7 Day Forecast for Marine Location Near Kasaan, AK
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location: 55.25, -132.3     debug


Area Discussion for -
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Fxak67 pajk 262228 cca
afdajk
southeast alaska forecast discussion... Corrected
national weather service juneau ak
228 pm akdt Mon jun 26 2017

Short term Monday night through Wednesday night... A high
pressure system is currently located across the central gulf.

Isolated showers will continue across portions of the panhandle
through tonight due to the flow over the coast range into the
panhandle combined with westerly orographic lifting. Showers will
increase Tuesday as short waves spiral around a low pressure
system... Located across the central gulf... Toward the panhandle
advecting moisture across the region. The best chances for rain on
Tuesday will occur across the north central gulf east to near
cape fairweather. Mostly cloudy skies will prevail across the
region through Tuesday.

Small craft advisories will prevail across northern lynn canal and
cross sound through late tonight.

While the showers over the southern panhandle are expected to
have ended by Tuesday evening, isolated to scattered shower activity
is expected into early Wednesday across the northern panhandle.

Wednesday has a chance of rain building through the day with the
next approaching weather front. There is still a fair bit of
disagreement between models with onset of rain. However rain is
expected to begin along the central outer coast of the panhandle and
in the yakutat area first. Significant winds are not expected with
this weather front. If rain begins during the Wednesday period it
will likely be during the late evening.

Used a combination of the NAM and GFS to handle the Monday night
through Wednesday period. However forecast confidence is average
Wednesday due to model disagreement with the fronts arrival.

Long term Thursday through Monday... As of 930 pm sun... Period
begins with upper ridge just E of the aor as an upper trough
approaches the W gulf. Models continue to struggle with this
details regarding the approaching trough and the timing and
strength of short wave troughs ejecting out from the parent
trough. Coming to a consensus on the approaching trough. Given the
large model discrepancies, elected to maintain inherited forecast
with precip chances increasing along the N gulf coast Wed then
spreading into the entire panhandle thu. Timing better precip
chances will improve as systems approach, but for now kept chance
pops across most of the CWA with akz017 having highest chances
late this week. Model solutions diverge more significantly late
this week into the weekend. Ec solution is fastest with a closed
upper low moving across the S gulf N pac. GFS gem have similar,
but slower solutions with ensemble means favoring the slower
progression of this feature. Since model agreement is poor by the
middle of the week, do not favor any solution for next weekend.

Made minimal change to inherited forecast and kept it trended
towards wpc guidance late this week through weekend.

Aviation As of 1pm 21 utc Monday... The ridge of high pressure
over the gulf developed a marine layer of low clouds overnight that
has kept majority of the region under MVFR CIGS and down to ifr over
the outer coast including paya. Showers linger over the southern
half of the panhandle with low skud clouds hanging around the
mountains. However nwly flow over the panhandle is making for large
breaks in the clouds on the lee side of baranof island along with
gravity waves that could create some turbulent conditions southward
over pow island. Expect CIGS to lift some more through the early
evening and showers to decrease but likely will not end completely
since moisture will continue to be fed over the top of the ridge.

Overnight the marine layer will strengthen again with MVFR cigs
likely through the early morning hours of Tuesday.

Ajk watches warnings advisories
Public... None.

Marine... Small craft advisory for pkz012-022-041>043.

Small craft advisory due to seas for pkz052.

Bm bc
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
KECA2 - 9450460 - Ketchikan, AK 36 mi44 min NNW 4.1 G 11 56°F 53°F1019.7 hPa (+0.4)
LCNA2 - Lincoln Rock, AK 60 mi154 min W 8 G 8.9 55°F 1017.7 hPa52°F
46145 - Central Dixon Entrance Buoy 61 mi44 min WNW 16 G 19 53°F 53°F5 ft1021.7 hPa (+0.9)

Wind History for Ketchikan, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hydaburg - Hydaburg Seaplane Base, AK27 mi48 minNNW 710.00 miOvercast54°F48°F83%1020.7 hPa

Wind History from AHY (wind in knots)
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Last 24hrSE3CalmCalmCalmW3CalmCalmNW4CalmW5CalmCalmCalmCalm--NW3NE3CalmNW6W9W8N3NW7NW7
1 day agoSE8S4S5SW4S5CalmCalmCalmE3S4S7SE7SE9SE11SE11SE12SE11--SE6SE8S6--CalmCalm
2 days agoCalmS4S7CalmCalmCalm3SE8CalmSE6SE3SE5SE6SE10SE5SW3CalmSE7--SE9SE7SW5SE5S7

Tide / Current Tables for Divide Head, Cholmondeley Sound, Alaska
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Divide Head
Click for Map
Mon -- 02:31 AM AKDT     17.92 feet High Tide
Mon -- 04:10 AM AKDT     Sunrise
Mon -- 07:42 AM AKDT     Moonrise
Mon -- 09:02 AM AKDT     -4.13 feet Low Tide
Mon -- 03:28 PM AKDT     15.69 feet High Tide
Mon -- 09:12 PM AKDT     1.45 feet Low Tide
Mon -- 09:34 PM AKDT     Sunset
Mon -- 11:21 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.815.517.617.715.411.25.90.8-2.8-4.1-30.34.89.513.315.415.413.39.862.91.52.14.5

Tide / Current Tables for Lancaster Cove, Cholmondeley Sound, Alaska
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Lancaster Cove
Click for Map
Mon -- 02:42 AM AKDT     17.86 feet High Tide
Mon -- 04:09 AM AKDT     Sunrise
Mon -- 07:41 AM AKDT     Moonrise
Mon -- 09:11 AM AKDT     -4.06 feet Low Tide
Mon -- 03:40 PM AKDT     15.67 feet High Tide
Mon -- 09:22 PM AKDT     1.53 feet Low Tide
Mon -- 09:33 PM AKDT     Sunset
Mon -- 11:20 PM AKDT     Moonset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
1114.817.317.815.9126.81.7-2.3-4-3.3-0.348.712.715.215.513.810.56.73.41.71.94

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 (23,6,7,8)
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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.