Friday, July28, 2017 L-36.com


Marine Weather and Tides
Hydaburg, 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 5:39AMSunset 9:42PM Friday July 28, 2017 9:59 AM PDT (16:59 UTC) Moonrise 11:40AMMoonset 11:23PM Illumination 26% Phase: Waxing Crescent; Moon at 5 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- 422 Am Akdt Fri Jul 28 2017
.small craft advisory late tonight...
Today..SE wind 15 kt. Seas 3 ft. Patchy fog early in the morning.
Tonight..SE wind 15 kt increasing to 25 kt late. Seas 5 ft. Showers late.
Sat..SE wind 30 kt. Seas 6 ft. Showers.
Sat night..SE gale to 35 kt. Seas 7 ft. Showers.
Sun..SE wind 25 kt diminishing to 15 kt. Seas 5 ft.
Mon..SE wind 15 kt. Seas 4 ft.
Tue..SE wind 15 kt. Seas 3 ft.

7 Day Forecast for Marine Location Near Hydaburg, AK
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location: 54.85, -132.83     debug


Area Discussion for -
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Fxak67 pajk 281430
afdajk
southeast alaska forecast discussion
national weather service juneau ak
630 am akdt Fri jul 28 2017

Short term Friday and Saturday the main weather maker for
the next couple days is a low pressure system currently over the
central n. Pacific. This low will approach the region from the
s-sw late tonight. As the low approaches today, flow aloft will
become more offshore and help to decrease the threat of showers,
especially over the northern panhandle. We are already starting to
see this trend as morning webcams from the haines skagway area are
showing breaks in the clouds. Some patchy fog and showers are
occurring over the southern half of the panhandle, but expect
these to diminish through the afternoon as well. Winds should be
on the light side with a ridge of high pressure over the central
inner channels. But some places may see winds pick up due to sea
breezes this afternoon. Haines and skagway had southerly winds of
10-20mph all night and will likely stay up at that level most of
the day. Similarly northern lynn canal stayed up at 20kt and may
flirt with small craft 25kt winds with some sea breeze influence
this afternoon.

Showers assoc with the low will move into the southern outer coast
late tonight then spread northward through Saturday morning and
afternoon. There looks to be a couple waves with this system where
winds will pick up along with moderate to heavy rain. The southern
outer coast and southern inner channels will be affected by these
waves the most. Expect SE winds to increase to around 15-25mph
with some higher gusts. Have the southern outside waters and
clarence strait increasing to gale force 35kt. The northern half
of the panhandle will see winds shifting out of the north ahead of
the low front, then flip back to the south on Saturday after the
first frontal band moves through.

The 00z ECMWF was not quites as strong with the Saturday low as
the GFS and nam. But all were in good agreement on low placement,
therefore using a blend of the 3 was helpful. Forecast confidence
is average.

Long term Sunday through Fri as of 1030pm Thursday...

minor changes were made from Monday through Friday as
deterministic models continue to show similar synoptic pattern
with low pressure systems moving into the eastern gulf.

Differences remain with the tracks of surface lows as they lift
out of the north pacific. There is good agreement in model
solutions that the upper level pattern with an upper trof low
will remain over the gulf through the week. This will keep the
forecast area on the wet side with onshore and upper level
shortwaves moving over the area.

There is better model agreement between the 00z NAM and ecmwf
with the low over the eastern gulf on Sunday. The weakening low
pressure system is forecasted to track north over the eastern gulf
before turning to the west through Sunday morning. This system
will spread moderate to heavy rain northward through Sunday as
this system is tapping into moisture from the pacific. The winds
will be on the strong side, 15 to 25 mph with higher gusts over
the southern half early Sunday. This is indicted by the naefs and
ecens continuing to show 1000mb and 850mb wind speeds 3 std dev
above normal. These winds will spread northward through the day
but they will not be as strong over the north. The marine waters
will see small craft winds over the southern half through the day.

Southerly winds from 15 to 20kt will move over the northern inner
channels by Sunday afternoon as a ridge builds. As the low
continues to weaken and drift west the winds will slowly decrease
through Sunday night.

There is about average forecaster confidence in the mid and long
range from low spread in the ensembles at 500mb but lower
confidence on track of surface lows through next week. Used a mix
of the 00z nam ECMWF for Sunday and then minor changes using the
latest wpc guidance for the rest of next week.

Ajk watches warnings advisories
Public... None.

Marine... Gale warning for pkz041.

Small craft advisory for pkz022-036-042-043.

Ferrin abj
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
46145 - Central Dixon Entrance Buoy 39 mi60 min E 7.8 G 7.8 55°F 55°F1 ft1018.9 hPa (-0.1)
KECA2 - 9450460 - Ketchikan, AK 72 mi48 min SE 7 G 9.9 56°F 56°F1019.8 hPa
LCNA2 - Lincoln Rock, AK 84 mi50 min SE 13 G 15 55°F 1017.3 hPa54°F

Wind History for Ketchikan, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Hydaburg - Hydaburg Seaplane Base, AK24 mi64 minSSE 610.00 miOvercast55°F52°F90%1018.6 hPa

Wind History from AHY (wind in knots)
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Last 24hr--S5S4S3S7SE3S5SE4E4SE5SE10E4SE8SE4S7--CalmCalmCalmCalmCalmSE3CalmSE6
1 day agoSE13SE12SE15SE16
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SE16SE14SE11SE11S7SE11SE10S7S5SW3--SW4E3SW3Calm
2 days agoCalmCalmSE5SE6SE8SE10S11S9S8S3SE5S5S6CalmCalmCalmCalmCalmSE6SE13
G19
SE12--SE10
G18
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G20

Tide / Current Tables for American Bay, Kaigani Strait, Alaska
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American Bay
Click for Map
Fri -- 04:48 AM AKDT     11.24 feet High Tide
Fri -- 04:54 AM AKDT     Sunrise
Fri -- 11:07 AM AKDT     0.11 feet Low Tide
Fri -- 11:39 AM AKDT     Moonrise
Fri -- 05:37 PM AKDT     11.75 feet High Tide
Fri -- 08:59 PM AKDT     Sunset
Fri -- 11:23 PM AKDT     Moonset
Fri -- 11:50 PM AKDT     1.75 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.34.26.79.110.811.210.38.35.6310.10.62.44.97.710.111.511.610.58.45.93.72.2

Tide / Current Tables for Gooseneck Harbor, Dall Island, Alaska
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Gooseneck Harbor
Click for Map
Fri -- 04:25 AM AKDT     9.54 feet High Tide
Fri -- 04:55 AM AKDT     Sunrise
Fri -- 10:53 AM AKDT     0.11 feet Low Tide
Fri -- 11:40 AM AKDT     Moonrise
Fri -- 05:14 PM AKDT     10.05 feet High Tide
Fri -- 09:00 PM AKDT     Sunset
Fri -- 11:23 PM AKDT     Moonset
Fri -- 11:36 PM AKDT     1.75 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
2.54.36.58.49.49.48.26.34.120.50.10.82.657.49.2109.78.56.74.62.91.9

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 (13,3,4,5)
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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.