Saturday, July22, 2017

Marine Weather and Tides
Twin Hills, 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 5:07AMSunset 11:04PM Saturday July 22, 2017 12:35 PM AKDT (20:35 UTC) Moonrise 3:38AMMoonset 8:47PM Illumination 1% Phase: Waning Crescent; Moon at 29 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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PKZ160 Bristol Bay- 353 Am Akdt Sat Jul 22 2017
Today..W wind 15 kt. Seas 3 ft. Patchy fog.
Tonight..W wind 15 kt. Seas 3 ft. Patchy fog.
Sun..SW wind 15 kt. Seas 3 ft.
Sun night..SW wind 15 kt. Seas 3 ft.
Mon through Tue..W wind 15 kt. Seas 4 ft.
Wed..W wind 20 kt. Seas 5 ft.

7 Day Forecast for Marine Location Near Twin Hills, AK
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location: 58.7, -160     debug

Area Discussion for -
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Fxak68 pafc 221252
southcentral and southwest alaska forecast discussion
national weather service anchorage ak
452 am akdt Sat jul 22 2017

Analysis and upper levels
A fairly tranquil pattern remains in place across the region this
morning as a stout ridge over the bering sea continues to extend
eastward over mainland alaska. This is yielding mostly clear
skies over the southern mainland, although cloud cover is a
little more extensive across the greater bristol bay region owing
to weak shower activity associated with a shortwave that passed
through the area last evening. Widespread fog and stratus remain
locked in place across the bering and aleutians beneath the
dominant high pressure.

Model discussion
Models remain in strong synoptic agreement into the beginning of
the week as the ridge flattens out and gives way to zonal flow
across the bering sea and mainland alaska. Continued to primarily
utilize hi-res NAM guidance for the morning forecast package to
better depict local influences.

Panc...VFR conditions and light winds will persist, with light inlet
breezes once again developing in the afternoon.

Short term forecast southcentral alaska (days 1 and 2)
An upper level ridge continues to drive clearing and drying
conditions across much of southcentral, with noctilucent clouds
clearly visible in the skies early this morning. This ridge will
continue to support mostly clear skies and warmer temperatures
across southcentral today as it pushes farther eastward. Some
clouds may form along the alaska range and talkeetna mountains by
the afternoon, but conditions are generally too stable to support
any showers.

More unstable weather will begin Sunday evening, as an upper level
wave progresses rapidly from the west to east across southcentral.

Rain is expected to occur mainly in the northern susitna valley
and northern copper river basin. Currently steady rain is not
expected in the anchorage bowl or matanuska valley, but there
will be enough forcing for some scattered showers along the
chugach mountains Sunday night into Monday. &&

Short term forecast southwest alaska
High pressure will remain over southwest alaska through tonight
before a front moves in from the northwest. The front will bring
rain to the region beginning with the kuskokwim delta and
spreading east through Sunday making it across all of southwest
alaska Sunday night. On Monday, lighter rain will persist behind
the front and MAX temps will drop back into the 60s from the
warmer previous couple of days.

Short term forecast bering sea aleutians
High pressure remains in place for much of the bering and
aleutians keeping stratus and fog widespread over these areas.

However, a front has begun to ride over top of the ridging moving
into the western bering. It will push through the northern bering
on Saturday and make it to the west coast by Sunday with the rest
of the front draped across the pribilof islands and the southern
bering. It will then slowly track east arriving to the eastern
aleutians and alaska peninsula on Monday.

Long term forecast (days 3 through 7)
The long range forecast will be in a progressive pattern as an
upper low over the arctic sends several shortwaves to the southern
mainland. Under this regime, occasional showers are expected
Monday night through Friday across the southern mainland and the
gulf of alaska. To the west, a ridge takes residence along the
western half of the aleutians keeping much of the bering dry,
however low clouds and fog will persist under the stable air mass.

The central and eastern bering will mainly be influenced by the
upper low. Models are in relatively good agreement with the
synoptic pattern through the extended timeframe, therefore a blend
of the operational models and their ensembles were used to update
the latest package.

Afc watches warnings advisories
Public... None
marine... None
fire weather... None
synopsis and model discussion... Cb
aviation... Cb
southcentral alaska... Eln
southwest alaska bering sea aleutians... Dk
long term... Kh

Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Togiac Village, Togiak Airport, AK33 mi40 minS 410.00 mi0°F0°F%1016.6 hPa

Wind History from ATG (wind in knots)
Last 24hrS6--S12S12--S10W9W9--NW9--NW8----N5NE3--N4Calm--N3S3--S4
1 day ago--SE6--SW7S11--SW8--W6--------NW5CalmCalm--N3N4N5--E4--SE4
2 days agoNE6E123SE5S6S5S5Calm--N10N9--N6N6--N8N8----NW7N5N4--S3

Tide / Current Tables for Black Rock, Walrus Islands, Nushagak Bay, Alaska
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Black Rock
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Sat -- 04:53 AM AKDT     9.37 feet High Tide
Sat -- 05:38 AM AKDT     Moonrise
Sat -- 06:10 AM AKDT     Sunrise
Sat -- 10:45 AM AKDT     3.85 feet Low Tide
Sat -- 04:18 PM AKDT     7.60 feet High Tide
Sat -- 10:47 PM AKDT     Moonset
Sat -- 10:47 PM AKDT     -3.07 feet Low Tide
Sat -- 11:23 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

Tide / Current Tables for Hagemeister Island (north end), Alaska
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Hagemeister Island (north end)
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Sat -- 05:40 AM AKDT     Moonrise
Sat -- 05:42 AM AKDT     10.29 feet High Tide
Sat -- 06:12 AM AKDT     Sunrise
Sat -- 12:31 PM AKDT     5.41 feet Low Tide
Sat -- 03:33 PM AKDT     6.46 feet High Tide
Sat -- 10:44 PM AKDT     -2.66 feet Low Tide
Sat -- 10:50 PM AKDT     Moonset
Sat -- 11:25 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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

GOES Local Image of Alaska    EDIT

Ground Weather Radar Station King Salmon
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weather_mapweather_map weather_map

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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 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 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.