Thursday, June29, 2017 L-36.com


Marine Weather and Tides
Kaktovik, 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 3:01AMSunset 12:47AM Thursday June 29, 2017 7:51 AM AKDT (15:51 UTC) Moonrise 11:04AMMoonset 12:45AM Illumination 30% Phase: Waxing Crescent; Moon at 6 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
7 Day Forecast for Marine Location Near Kaktovik, AK
   Hourly   EDIT   Help
location: 70.16, -145.98     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxak69 pafg 291333
afdafg
northern alaska forecast discussion
national weather service fairbanks ak
533 am akdt Thu jun 29 2017

Synopsis
High pressure aloft and a thermal trough at the surface will be
present in the eastern interior with thunderstorms possible
Friday and Saturday. Southerly flow on the west coast is brining rain
and rain showers to the west coast and western interior. Models
are in fairly good agreement into the weekend on the overall
pattern but differ on details, which is to be expected. Models are
also underestimating winds in the alaska range as they have not
quite nailed the pressure gradient there.

Discussion
Aloft at 500mb an area of low pressure continues to spin in the
western bering sea, allowing for southerly flow along the west
coast of alaska. This brought above average temperatures to areas
of the northwest part of the state. This low will move north over
the next couple of days but the general area of low pressure will
remain, keeping southerly flow along the west coast.

Inland, a ridge of high pressure aloft continues to be located
over the eastern interior and yukon, extending north to the
eastern arctic coast of the state. The ridge to the east will
retreat Friday, cutting off the high in the arctic. This will
allow for a pattern shift for the interior, as a shortwave trough
will then move north over the alaska range from an area of low
pressure spinning in the gulf of alaska. More on the impacts of
this below.

On the surface the low in the bering sea is still present and
contributing to the southerly flow along the west coast. Low
pressure is present in the eastern interior due a thermal trough
from warm temperatures. This is creating a pressure gradient
setup in the alaska range as it interacts with the low in the gulf
of alaska that is also reflected on the surface. Both features
are present through Friday, making for windy conditions in the
alaska range, especially in passes. Today will be the windiest day
as the thermal trough will shift north tomorrow.

As a result of the above, the west coast and western interior
will see periods of rain and rainshowers the next few days as
shortwave troughs pulse through the southerly flow.

The eastern interior will continue to be warm and dry due to the
high pressure aloft, with windy conditions in the alaska range as
stated above. Isolated thunderstorms are also possible in the
eastern brooks range today. The pattern shift mentioned above has
the potential to produce some very active convection and
thunderstorms on Saturday afternoon. This will be due to continued
warm temperatures maintaining the thermal trough with enhanced
dynamic instability from the shortwave trough moving north. The
incoming shortwave will also provide needed moisture for the
storms.

The arctic will see above average temperatures in the western
arctic, while and some coastal sea fog and low ceilings are
present in the eastern arctic. Both will be present the next
couple of days, with fog in the eastern arctic occurring mainly at
night.

Coastal hazard potential days 3 and 4... None.

Fire weather
A red flag warning has been issued for today in zone 223,
specifically for areas around delta junction. Warm temperatures
and low humidity will combine with windy conditions that have been
created by the pressure gradient near the alaska range. Other
zones in the alaska range will not meet criteria. Near red flag
conditions are expected today and Thursday in the yukon flats.

Temperatures will be above normal and humidity will be meet
criteria. However, winds will remain light.

Hydrology
Expect glacier fed rivers to rise through the weekend due to above
normal temperatures and freezing levels.

Afg watches warnings advisories
Red flag warning for akz223.

Brisk wind advisory for pkz235-pkz240-pkz245.

Bjb jun 17


Weather Reporting Stations
   EDIT       (on/off)   Help   NOTE: Click on distance to see the station location on a map

Airport Reports
    EDIT      (on/off)   Help   Click EDIT to display multiple airports
AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Barter Island, Barter Island LRRS Airport, AK127 mi59 minE 190.50 miLight Rain Fog and Breezy38°F37°F97%1012.9 hPa

Wind History from ABA (wind in knots)
8
AM
9
AM
10
AM
11
AM
12
PM
1
PM
2
PM
3
PM
4
PM
5
PM
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
Last 24hrE19E18--E19E20E23E21E23E23
G30
E24
G30
E24
G29
E23E21
G27
E25
G28
E26
G31
E25
G28
E24
G29
E24
G30
E21E24
G27
E22--E20
G25
E19
1 day agoE15E17E16E20E17E18E18E20E19E18E19E17E14E16E15NE12E15E14E13E15E14E11E13E18
2 days agoE9E12NE11E12NE13NE17NE15NE14NE15NE15NE15E16E19E18E20NE14E15E15E15NE11E16E14E16E16

Tide / Current Tables for Flaxman Island, Alaska
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Flaxman Island
Click for Map
Thu -- 01:44 AM AKDT     Moonset
Thu -- 05:23 AM AKDT     0.64 feet High Tide
Thu -- 12:02 PM AKDT     Moonrise
Thu -- 12:23 PM AKDT     -0.03 feet Low Tide
Thu -- 06:37 PM AKDT     0.61 feet High Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.20.30.40.60.60.60.60.40.30.20-0-00.10.20.40.50.60.60.60.50.40.3

Tide / Current Tables for
   EDIT      (on/off)   Help
Weather Map and Satellite Images
       (on/off)   Help
Weather Map
wmap_P
IR Satellite Image from GEOS
npac_satellite

GOES Local Image of Alaska    EDIT
Geos

Ground Weather Radar Station Pedro Dome, 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.