Saturday, February24, 2018 L-36.com


Marine Weather and Tides
Edna Bay, 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 7:00AMSunset 5:20PM Saturday February 24, 2018 8:53 AM AKST (17:53 UTC) Moonrise 12:15PMMoonset 3:58AM Illumination 70% Phase: Waxing Gibbous; Moon at 9 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- 444 Am Akst Sat Feb 24 2018
.small craft advisory this afternoon through late tonight...
Today..E wind 10 kt becoming se 25 kt in the morning, then becoming W in the afternoon. Gusts to 40 kt, seas 2 ft or less building to 5 ft. NEar ocean entrances, seas 7 ft. Snow. Rain in the afternoon.
Tonight..SW wind 25 kt becoming se late. Seas 6 ft, except 10 ft near ocean entrances. Rain and snow showers in the evening.
Sun..NW wind 15 kt in the morning becoming light. Seas 3 ft in the morning then 2 ft or less. NEar ocean entrances, seas 7 ft.
Sun night..N wind 10 kt. Seas 2 ft or less, except 6 ft near ocean entrances.
Mon..SE wind 20 kt becoming sw. Seas 4 ft.
Tue..W wind 10 kt. Seas 3 ft.
Wed..E wind 10 kt. Seas 2 ft or less.

7 Day Forecast for Marine Location Near Edna Bay, AK
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location: 55.68, -133.58     debug


Area Discussion for -
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Fxak67 pajk 241600
afdajk
southeast alaska forecast discussion
national weather service juneau ak
700 am akst Sat feb 24 2018

Short term A storm force low is on track to cross the northern
gulf today and move into the southern panhandle by tonight.

Another gale force low will begin tracking across the northern
gulf late Sunday night into Monday, which is a significant change
from previous model runs. Out of this secondary system, the main
concern will be outflow.

Changes to pressure were made by nudging to the nam. Models were
somewhat inconsistent with the placement of today's low, even with
the GFS tracking further south. Winds were increased in western
gulf to storm force and extensive edits to winds based on local
effects. There'll be a quick shot of northerly outflow in northern
lynn and gusty winds near ketchikan, craig, and hydaburg, as the
low slides southward.

Pop's were increased to categorical by this afternoon and a
decreasing trend by late afternoon. QPF was adjusted using a
nam GFS blend. This blend increased QPF amounts slightly, but did
not alter current snow amounts significantly. Winter weather
advisories are out for hoonah, elfin cove, pelican, angoon,
petersburg, wrangell, and kake with 3-6 inches expected through
this evening. Otherwise, snow accumulations will range from 1
inch upwards of 4 inches across the central panhandle. Most
locations will start out as snow, while the outer coast will
transition to a mix by this afternoon.

Few changes to maximum temperatures were necessary. With the
clearing pattern, Sunday's maximum temperatures should be warmer
and even some sunny skies by the afternoon. However, minimum
temperatures were decreased for the tonight period based on model
spectrum spreads and MOS guidance, following a quick shot of cold
air. Minimum temperatures were increased over the southern
panhandle for the Sunday night into Monday timeframe, after the
low exits.

Confidence is about average with today's quick moving system,
although actual snow ranges and transition times will vary.

Long term Monday through Saturday active weather pattern
through the long range with some significant model changes in the
mid range. At mid levels starting Monday 500 mb high pressure
moves over the panhandle into western canada with a trough digging
down from the ak interior and yukon into the NE gulf. The main
circulation over the arctic will rotate in more waves to the
south keeping a source of cold air over the region through mid
week. Between meridional pattern of the first wave on Monday and a
second deeper wave on Tuesday night into Wednesday there will be
a short period of zonal flow. Sharp ridging rebuilds over the gulf
late week setting up for an outflow wind event.

At the surface a deep closed low develops over the NE gulf Monday
with associated frontal boundary moving over the panhandle
through the day. Due to the remaining cold air expect another
snow event with potential of 1 to 3 inches for some locations. As
the front is showing a fast track expect this would keep lower
qpf totals and thus be a limiting factor for snowfall. After the
main front tracks east post frontal showers with onshore flow
will continue. Still uncertainty on the next system developing
over the eastern gulf Thursday but at this time looks like it
will track to the south and main impact will be increasing
pressure gradient and outflow winds. For the Monday system, models
now in better agreement of a stronger frontal boundary over the
gulf and thus have increased westerly winds to gale force, with
potential for localized storm force. Stronger winds expected at
higher elevations but at least picking up 20 to 25 kt southerly
winds over the inner channels. Winds diminish by Tuesday as the
front moves inland and by Thursday, gradient flips to northerly
with increasing winds speeds.

Fair agreement between NAM and GFS for Monday, which were changed
from previous runs and inherited forecast. Used a blend of GFS nam
Monday to Tuesday then use of nbm wpc for the rest of the long
range. Improved confidence on the higher winds for Monday with
the newly analyzed low but still some question on snow totals.

Lower confidence by mid week in the final track of surface
features but upper pattern meridional flow is likely.

Ajk watches warnings advisories
Public... Winter weather advisory from 9 am this morning to 6 pm akst this
evening for akz026.

Winter weather advisory until 4 pm akst this afternoon for
akz021-022-024.

Marine... Gale warning for pkz012-033-041>043.

Small craft advisory for pkz013-021-022-031-032-034>036-051-052.

Small craft advisory due to seas for pkz053.

Ss voveris
visit us at http:

Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
CDXA2 37 mi41 min S 5.1 G 6 33°F 1007.5 hPa30°F
LCNA2 - Lincoln Rock, AK 54 mi43 min E 12 G 15 33°F 1007.4 hPa33°F
PLXA2 - 9451054 - Port Alexander, AK 69 mi53 min Calm G 5.1 34°F 40°F1006.5 hPa (-4.5)

Wind History for Port Alexander, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Klawock - Klawock Airport, AK27 mi60 minSSE 610.00 miOvercast36°F33°F89%1008.8 hPa

Wind History from AKW (wind in knots)
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--64--3CalmCalmCalmCalmCalmCalmCalmCalmCalmCalmS4W3S4S6
1 day agoCalmCalmCalmCalmN43CalmS5SE856S8
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2 days agoCalmS4S4SW3S34S4S4SW3SW4S6S5SE6S3CalmCalmE3S3NE3CalmCalmNE3CalmNE4

Tide / Current Tables for Anguilla Island, Gulf of Esquibel, Alaska
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Anguilla Island
Click for Map
Sat -- 12:05 AM AKST     3.73 feet Low Tide
Sat -- 02:58 AM AKST     Moonset
Sat -- 06:27 AM AKST     10.00 feet High Tide
Sat -- 06:57 AM AKST     Sunrise
Sat -- 11:15 AM AKST     Moonrise
Sat -- 01:46 PM AKST     0.76 feet Low Tide
Sat -- 05:18 PM AKST     Sunset
Sat -- 08:19 PM AKST     7.58 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.744.96.37.89.29.99.997.55.63.6210.81.42.64.25.877.57.46.75.7

Tide / Current Tables for Port Alice, Heceta Island, Davidson Inlet, Alaska
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Port Alice
Click for Map
Sat -- 12:05 AM AKST     3.83 feet Low Tide
Sat -- 02:58 AM AKST     Moonset
Sat -- 06:25 AM AKST     10.50 feet High Tide
Sat -- 06:57 AM AKST     Sunrise
Sat -- 11:14 AM AKST     Moonrise
Sat -- 01:46 PM AKST     0.86 feet Low Tide
Sat -- 05:18 PM AKST     Sunset
Sat -- 08:17 PM AKST     8.08 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
3.84.15.16.68.29.610.410.49.57.95.93.92.21.10.91.52.94.66.27.587.97.16

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 (12,3,4,5)
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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.