Wednesday, June20, 2018 L-36.com


Marine Weather and Tides
Petersburg, AK

Version 3.4
What's New / NOTES
5/20/2018 -- NOAA is having problems with the data feed that I use to draw the graphs. They are aware of the issue and working to resolve it. Sometimes changing the location by about a mile will give a correct graph. 3/3/2018 - There is a new GOES Satellite for the east coast that required rewriting that part of the code. Please report any issues.

Sunrise 3:48AMSunset 10:10PM Wednesday June 20, 2018 5:33 AM AKDT (13:33 UTC) Moonrise 1:09PMMoonset 1:24AM Illumination 46% Phase: First Quarter Moon; Moon at 7 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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PKZ035 Sumner Strait- 338 Am Akdt Wed Jun 20 2018
Today..NW wind 10 kt becoming s. Seas 2 ft or less, except 4 ft near ocean entrances.
Tonight..S wind 10 kt. Seas 2 ft or less.
Thu..SW wind 15 kt. Seas 4 ft.
Thu night..W wind 20 kt. Seas 4 ft.
Fri..W wind 20 kt. Seas 4 ft.
Sat..W wind 10 kt becoming se. Seas 2 ft or less.
Sun..E wind 10 kt. Seas 2 ft or less.

7 Day Forecast for Marine Location Near Petersburg, AK
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location: 56.63, -132.93     debug


Area Discussion for -
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Fxak67 pajk 201306
afdajk
southeast alaska forecast discussion
national weather service juneau ak
506 am akdt Wed jun 20 2018

Short term through Thursday night... A high pressure ridge
will persist across most of the panhandle through Thursday.

However the high pressure ridge will weaken the next few days.

The ridge will produce mostly clear to partly cloudy skies and
above normal temperatures for most of the panhandle today similar
to the past few days, however temperatures will be a little lower
this afternoon than they were Tuesday. Fog has developed across
the yakutat area this morning. The fog will dissipate late this
morning. Northwestern areas of the panhandle including yakutat
will remain mostly cloudy again today. Therefore afternoon
temperatures will be near seasonal normals for the northwestern
areas today.

Light to moderate winds will prevail across most inland areas
including the inner channels again today.

Changes to the forecast were minimal today as the weather systems
continue on track from previous model runs. Used the NAM nest and
gfs for any changes. Afternoon temperatures were increased for
this afternoon.

Long term Friday through Wednesday ... As of 10 pm Tuesday,
the long term forecast's primary impact will be a surface low
pressure system that forms as an upper level low pushes northeast
over the northern pacific. This low looks to arrive in the
southeastern gulf early Sunday morning. Precipitation associated
with the low will begin over the southern panhandle first and
spread northward through the day. The low tracks toward the dixon
entrance on Sunday and pushes east of the panhandle by early
Monday; however, precipitation may persist through the early part
of the week.

Outside of the low this weekend, Friday and Saturday will carry
some showers over the panhandle. Greatest shower activity is
expected along the coast mountain range Friday; however, some
enhancement could occur along the outer coast and southern
panhandle Saturday as the low begins to approach and some upper
level shortwaves pass over the area. Winds as a whole remain below
small craft levels with the exception of northern lynn canal
Friday afternoon where a combination of a tighter pressure
gradient and thermal drive may push wind speeds up to 25 kts.

Temperatures moderate with highs between the upper 50s and low 60s
through the extended forecast.

Not many changes to the extended forecast were made tonight as the
surface low was well represented by the inherited forecast. Pops
were increased along the outer coast and over the southern
panhandle late Saturday and early Sunday as the low pushes
ashore. Over the northern panhandle, there is still a fair amount
of discrepancy in how far north the precipitation associated with
the low will spread so a chance of rain has been carried forward.

The ECMWF was favored to adjust the track and timing of the low
on Sunday. Behind the low there is still large variation between
models on whether a ridge builds over the gulf or another trough
moves into the area early next week.

Ajk watches warnings advisories
Public... None.

Marine... Small craft advisory due to seas for pkz022-041-042.

Bm jb
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LCNA2 - Lincoln Rock, AK 42 mi83 min SE 9.9 G 17 62°F 1011.2 hPa52°F
FFIA2 - Five Finger, AK 58 mi93 min N 7 G 8 56°F 1012.7 hPa (-0.7)

Wind History for Port Alexander, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Petersburg, AK13 mi37 minN 010.00 miFair55°F48°F80%1013.7 hPa

Wind History from APG (wind in knots)
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Last 24hrE5E5E6E6E5E5E6E6E7E6E7E5E6E5E3E4E5SE5E5E4E4E5CalmCalm
1 day agoE6E4NE4E5E5E4E7E5E7E6E5E7E6E4E3E3E5SE7SE3Calm6E4SE5E4
2 days agoCalmW4E4CalmCalmE5E7E5E5E4NE4NE5E3E4E5E4E6E6E5CalmS4E5CalmE4

Tide / Current Tables for Anchor Point, Cook Inlet, Alaska
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Anchor Point
Click for Map
Wed -- 01:17 AM AKDT     3.06 feet Low Tide
Wed -- 01:23 AM AKDT     Moonset
Wed -- 02:52 AM AKDT     First Quarter
Wed -- 03:59 AM AKDT     Sunrise
Wed -- 07:05 AM AKDT     13.80 feet High Tide
Wed -- 01:08 PM AKDT     Moonrise
Wed -- 01:39 PM AKDT     0.60 feet Low Tide
Wed -- 08:00 PM AKDT     14.94 feet High Tide
Wed -- 09:47 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
4.23.13.55.27.910.712.913.813.211.38.55.32.60.90.72.258.511.814.114.914.212.39.6

Tide / Current Tables for Point Lockwood, Woewodski Island, Wrangell Narrows, Alaska
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Point Lockwood
Click for Map
Wed -- 12:57 AM AKDT     3.16 feet Low Tide
Wed -- 01:23 AM AKDT     Moonset
Wed -- 02:52 AM AKDT     First Quarter
Wed -- 04:00 AM AKDT     Sunrise
Wed -- 07:05 AM AKDT     13.40 feet High Tide
Wed -- 01:08 PM AKDT     Moonrise
Wed -- 01:19 PM AKDT     0.70 feet Low Tide
Wed -- 08:00 PM AKDT     14.54 feet High Tide
Wed -- 09:46 PM AKDT     Sunset
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.83.23.95.78.210.712.613.412.810.87.84.62.10.81.12.85.68.811.813.814.513.811.78.9

Weather Map and Satellite Images
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wmap_P
GOES Local Image of PacificNorthwest    EDIT
NOTE: East coast views moved to GEOS-16. They are experimental and not well supported by NOAA so they may not be correct so be warned. This change required redoing a large amount of the GOES code. If the image you are expecting is not showing, please let me know. You may need to use the EDIT function to update your location.
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Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (9,2,3,4)
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Ground Weather Radar Station Biorka Is., AK
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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.