Wednesday, April25, 2018 L-36.com


Marine Weather and Tides
Thorne Bay, AK

Version 3.4
What's New / NOTES
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.
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.

Sunrise 5:13AMSunset 8:37PM Wednesday April 25, 2018 5:59 PM AKDT (01:59 UTC) Moonrise 2:53PMMoonset 4:23AM Illumination 82% Phase: Waxing Gibbous; Moon at 11 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
    EDIT      (on/off)   Help
PKZ036 Clarence Strait- 312 Pm Akdt Wed Apr 25 2018
Tonight..NW wind 10 kt. Seas 2 ft or less.
Thu..NW wind 15 kt. Seas 3 ft.
Thu night..NW wind 20 kt. Seas 4 ft.
Fri..NW wind 20 kt. Seas 4 ft.
Fri night..NW wind 25 kt. Seas 5 ft.
Sat..NW wind 25 kt. Seas 5 ft.
Sun..NW wind 20 kt. Seas 4 ft.
Mon..NW wind 20 kt. Seas 4 ft.

7 Day Forecast for Marine Location Near Thorne Bay, AK
   Hourly   EDIT   Help
location: 55.92, -132.37     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxak67 pajk 252205
afdajk
southeast alaska forecast discussion
national weather service juneau ak
205 pm akdt Wed apr 25 2018

Short term Large upper low continues to spin late this
afternoon over the bering sea while upper ridging is building
along the bc coast. Between these two systems is the remnants of
the front that brought 1.5 to 2 inches of rain to the yakutat area
last night. This front is little more than a weak surface trough
but SW flow aloft continues to advect a narrow stream of moisture
over the northern central panhandle as evidenced by pw values
around 1 inch on GOES blended pw imagery. Southern areas have seen
partly to mostly sunny skies today with temperatures warming into
the mid 50s while the corridor from sitka to gustavus juneau as
seen chilly light rain with temperatures in the mid 40s.

Guidance indicates that the mid upper ridge will continue to build
through Thursday. This will prevent the weak surface front from
advancing any further south. Instead, one or two weak waves will
run along the front through Thursday morning, keeping light
precipitation going through mid day Thursday in roughly the same
area as today. The front will eventually weaken and dissipate by
Thursday night as surface ridging begins to develop over the gulf.

With continued weak onshore flow in the 925 to 850 mb layer
through Thursday, going to be hard to scour out the low level
moisture. Even Thursday night, as the flow turns nw'ly, while we
may dry out, clouds will likely hang around especially along the
coast and the northern central panhandle.

Sw winds are currently gusting to 40 mph in the skagway area with
25 kt southerly winds in N lynn canal. As the stronger SW flow
aloft diminishes this evening, expect these winds to diminish. By
Thursday morning, light winds are expected in most areas as the
gradient GOES to almost nil. Kept 15 kt southerlies in lynn canal
Thursday afternoon due to thermal gradient but otherwise winds
should become more nw'ly by Thursday night as surface ridging
builds over the gulf.

Overall models are in good agreement and forecast confidence is
above average.

Long term Friday through Wednesday ... A large surface high
will be centered south of the aleutians at the start of this long
range forecast period. Prominent ridge axis extends northeast
diagonally across the gulf. Farther north, a low near the bering
strait will be pushing a front east across the southern portion of
the state and along the northern periphery of the surface ridge.

Models are currently in significantly better agreement with this
set-up and changes were made in the extended forecast to reflect
this. Main change has been to increase the likelihood of rain from
Friday onward. The front referenced above will not make much
eastward progress beyond CAPE fairweather. However, a second
frontal feature will cross the central gulf beginning Saturday and
arrive along the central southern outer coast by Sunday morning.

A third front will cross the gulf on Sunday and spread rain across
all of the panhandle Sunday night.

With the increases to pop and based on model spectrum spreads,
decided to diminish daytime highs slightly. Overnight lows were
adjusted up even less. Net effect will be a diminished diurnal
range over the coming week.

Blended gfs, ecmwf, and the canadian nh for pressure through
Sunday night. Used canadian nh winds as a foundation through
Friday night, then primarily gfs. Preferred the SREF pop field
early on, but then favored the upper level pattern depicted in gfs
for the second and third fronts and how they interact with the
surface ridge.

Forecast confidence in a continued wet pattern for the upcoming
week remains lower than average but is increasing.

Ajk watches warnings advisories
Public... Strong wind until 4 pm akdt this afternoon for akz018.

Strong wind from 6 pm to 10 pm akdt this evening for akz018.

Marine... Small craft advisory for pkz012.

Small craft advisory due to seas for pkz022-041>043-051>053.

Del fritsch
visit us at http:

Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
LCNA2 - Lincoln Rock, AK 19 mi49 min NNW 11 G 14 1026.1 hPa
GIXA2 42 mi27 min W 7 G 8 52°F 1026.6 hPa40°F
KECA2 - 9450460 - Ketchikan, AK 57 mi47 min WNW 9.9 G 12 51°F 46°F1026.7 hPa

Wind History for Ketchikan, AK
(wind in knots)    EDIT      (on/off)   Help
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
Last
24hr
NW7
NW10
NW2
NW5
N3
NW3
--
NW3
G7
E2
W2
N1
SE2
--
--
SE3
SE3
NW4
NW12
NW11
NW10
G13
NW9
NW10
NW7
G11
NW10
1 day
ago
E5
G8
E8
G13
SE11
G17
SE10
G16
SE12
G15
SE12
G15
E7
G12
SE7
G10
SE8
S5
E1
SE1
G5
--
SE4
SE6
E4
SE5
SE8
SE3
S3
W7
W5
G9
SE7
SE3
2 days
ago
SE12
G19
SE16
G22
SE13
G20
SE13
G19
SE15
G22
SE13
G20
E12
G22
SE14
G18
SE15
G21
SE14
G19
SE17
G24
SE15
G22
SE18
G24
SE16
G24
SE15
G19
SE15
G24
SE13
G22
SE15
G20
SE13
G19
SE9
G14
SE11
G16
SE10
G13
SE11
G16
SE9
G15

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Wrangell, AK39 mi63 minSW 810.00 miOvercast49°F39°F69%1028.3 hPa

Wind History from AWG (wind in knots)
6
PM
7
PM
8
PM
9
PM
10
PM
11
PM
12
AM
1
AM
2
AM
3
AM
4
AM
5
AM
6
AM
7
AM
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
Last 24hrS3CalmE3SE3SE4CalmSE3CalmCalmSE4SE3E3--E3E4CalmN33N4NW5NW8NW6SW7SW8
1 day agoE12
G20
E12
G21
SE11--E7--E9SE5E9E64E6E6N4CalmE5E5E3N34W7N3W7SW4
2 days agoE14E13E13
G21
E11
G20
SE15
G19
SE15
G23
--E15
G21
--E8SE9E7E13
G17
E11
G18
E12
G20
E14
G19
E11
G17
E11
G17
E13
G18
--SE11E10
G17
E12
G17
E12
G17

Tide / Current Tables for Dewey Anchorage, Etolin Island, Alaska
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Dewey Anchorage
Click for Map
Wed -- 04:09 AM AKDT     3.30 feet Low Tide
Wed -- 04:23 AM AKDT     Moonset
Wed -- 05:19 AM AKDT     Sunrise
Wed -- 10:15 AM AKDT     14.32 feet High Tide
Wed -- 02:53 PM AKDT     Moonrise
Wed -- 04:34 PM AKDT     0.30 feet Low Tide
Wed -- 08:16 PM AKDT     Sunset
Wed -- 11:01 PM AKDT     15.25 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
11.79.16.34.23.33.85.58.110.913.214.313.9128.95.42.40.60.5258.511.914.315.2

Tide / Current Tables for Olive Cove, Zimovia Strait, Alaska
   EDIT      (on/off)   Help   One Week of Data
Olive Cove
Click for Map
Wed -- 04:09 AM AKDT     3.40 feet Low Tide
Wed -- 04:23 AM AKDT     Moonset
Wed -- 05:18 AM AKDT     Sunrise
Wed -- 10:14 AM AKDT     14.92 feet High Tide
Wed -- 02:52 PM AKDT     Moonrise
Wed -- 04:34 PM AKDT     0.40 feet Low Tide
Wed -- 08:17 PM AKDT     Sunset
Wed -- 11:00 PM AKDT     15.85 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
12.29.46.54.43.43.95.88.511.413.714.914.412.59.35.72.60.70.62.25.28.912.414.915.8

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
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.
Link to Loop

Other links: Northern Pacific     Contential US     Full GOES-East
Wind Forecast for (21,6,7,8)
      (on/off)   Help

Ground Weather Radar Station Biorka Is., AK
   (on/off)   Help
weather_mapweather_map weather_map

Ad by Google

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.