Thursday, July18, 2019 L-36.com


Marine Weather and Tides
Sitka and, AK

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6/2/2019. Many thanks to a user for reporting an error on one of the Edit pages. The switch to PHP 7.2 caused many pages that previously worked to quit working. I fixed many but I still depend on users to report ones I missed. Please report errors HERE or send an email to me at L-36.com. Allen

Sunrise 4:19AMSunset 9:48PM Thursday July 18, 2019 12:58 AM AKDT (08:58 UTC) Moonrise 9:51PMMoonset 5:21AM Illumination 98% Phase: Waning Gibbous; Moon at 16 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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PKZ032 Northern Chatham Strait- 307 Pm Akdt Wed Jul 17 2019
Tonight..NW wind 10 kt becoming s. Seas 2 ft or less. Showers.
Thu..S wind 10 kt. Seas 2 ft or less.
Thu night..S wind 10 kt. Seas 2 ft or less.
Fri..S wind 10 kt. Seas 2 ft or less.
Fri night..S wind 10 kt. Seas 2 ft or less.
Sat..S wind 15 kt. Seas building to 3 ft.
Sun..S wind 15 kt. Seas 3 ft.
Mon..S wind 10 kt. Seas 2 ft or less.


7 Day Forecast for Marine Location Near Sitka and , AK
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location: 57.04, -135.39     debug


Area Discussion for -
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Fxak67 pajk 172234
afdajk
southeast alaska forecast discussion
national weather service juneau ak
234 pm akdt Wed jul 17 2019

Short term Broad upper low continues to spin over the southern
panhandle this afternoon. Fast westerly flow south of the low will
continue to allow it to shift slowly eastward into bc tonight
through Thursday night. At the surface, the low is more complex
with multiple centers noted on GOES 17 imagery and radar this
afternoon. Overall tendency will be for the surface features to
weaken and become more diffuse as they encounter the higher
terrain to the east through early Friday.

Just north of the main upper low, a low to mid level frontal zone
will tighten tonight as warm air from NW canada is drawn W and sw
in cyclonic easterly flow. Frontogenesis in this region of
stretching deformation will likely lead to a persistent band of
rainfall over the central panhandle from juneau to petersburg
tonight into Thursday. Depending on exactly where the banding sets
up, some periods of heavier rainfall rates are possible as warm,
moist air from the east undercuts a cool pocket aloft leading to
some more convective mid level lapse rates.

Showers will gradually be diminishing Thursday night and Friday as
more ridging builds over NW canada.

Winds will remain generally 15 kt or less over the inside waters
through Friday. A gradual shift from nw'ly to s'ly winds will
occur Thursday through Thursday night as a weak surface low
develops in the NW gulf.

Overall the inherited forecast represented these features well,
with the main change being shifting the higher precipitation
chances a bit further south tonight and Thursday.

Long term Friday to Wednesday as of 9 pm Tuesday aloft a
weak closed low that is to drift from the central gulf to west-
southwest of haida gwaii by the weekend, and it will persist there
into early next week. The low positioned over the far
southeastern gulf will favor the occasional trof rotating
northward to the southern panhandle. A surface low will move
similar to the features aloft. Timing of the mid level shortwaves
about the low will be difficult, though it does seem a more
organized wave will move through around Sunday.

The favored portion of the panhandle to get rain will be the
southern panhandle. The northern panhandle should be drier. There
will be a better chance of east to northeast flow across the
northern panhandle.

Temperatures look to be on a slight warming trend each day through
the period with a few locations possibly topping out at or near
70 by Monday and Tuesday.

Ajk watches warnings advisories
Public... None.

Marine... Small craft advisory for pkz041-042.

Del bezenek
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
SHXA2 2 mi45 min W 1 G 1.9 57°F 1003.9 hPa53°F
ITKA2 3 mi64 min 56°F 56°F1003.8 hPa
STXA2 5 mi45 min SE 1.9 G 4.1 56°F 1003.7 hPa52°F
PGXA2 41 mi45 min SE 5.1 G 8 53°F 52°F
46084 - Cape Edgecumbe Buoy AK 48 mi68 min W 14 G 18 57°F 57°F6 ft1004.1 hPa (+1.6)55°F
TKEA2 - Tenakee Springs, AK 52 mi36 min NNE 1.9 G 2.9 56°F 1001.6 hPa51°F
PLXA2 - 9451054 - Port Alexander, AK 67 mi64 min SW 4.1 G 6 56°F 51°F1004 hPa
ELFA2 - 9452634 - Elfin Cove, AK 94 mi64 min 58°F 48°F1003.5 hPa

Wind History for Port Alexander, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Sitka - Sitka Airport, AK3 mi65 minESE 310.00 miOvercast57°F55°F93%1003.5 hPa

Wind History from ASI (wind in knots)
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Last 24hrE3CalmCalmCalmSE3CalmCalmCalmCalmNW3W3NW3W3SW5SW6SW7S3CalmS3CalmCalmCalmCalmSE3
1 day agoSE4S5E3E3E4S3NW4N3CalmNW43E8E9S10S11S11S11S12S11S8W4N4NW6N4
2 days agoSW6S3W3N4SW6SW4CalmCalmSW9SW7SW7SW8W7W5W44NW6SW9S7S9SW10S9S9SE3

Tide / Current Tables for Dog Point, Lisianski Peninsula, Sitka Sound, Alaska
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Dog Point
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Thu -- 01:52 AM AKDT     10.00 feet High Tide
Thu -- 04:33 AM AKDT     Sunrise
Thu -- 06:20 AM AKDT     Moonset
Thu -- 08:45 AM AKDT     -1.57 feet Low Tide
Thu -- 03:14 PM AKDT     8.51 feet High Tide
Thu -- 08:43 PM AKDT     2.89 feet Low Tide
Thu -- 09:41 PM AKDT     Sunset
Thu -- 10:51 PM AKDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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8.29.6109.37.65.12.50.2-1.2-1.5-0.61.33.667.78.58.27.25.64.13.12.93.65.1

Tide / Current Tables for Olga Point, Olga Strait, Sitka Sound, Alaska
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Olga Point
Click for Map
Thu -- 01:56 AM AKDT     9.90 feet High Tide
Thu -- 04:33 AM AKDT     Sunrise
Thu -- 06:21 AM AKDT     Moonset
Thu -- 08:59 AM AKDT     -1.57 feet Low Tide
Thu -- 03:18 PM AKDT     8.41 feet High Tide
Thu -- 08:57 PM AKDT     2.89 feet Low Tide
Thu -- 09:42 PM AKDT     Sunset
Thu -- 10:52 PM AKDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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89.49.99.37.75.42.90.6-1-1.6-0.90.83.25.67.58.48.27.25.84.33.32.93.44.8

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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Wind Forecast for (4,6,7,8)
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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.