Sunday, May20, 2018 L-36.com


Marine Weather and Tides
Kotlik, 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 4:53AMSunset 10:58PM Sunday May 20, 2018 5:04 PM AKDT (01:04 UTC) Moonrise 9:27AMMoonset 2:22AM Illumination 36% 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
PKZ200 Norton Sound- 154 Pm Akdt Sun May 20 2018
Tonight..N winds 20 kt. Seas 3 ft.
Mon..N winds 20 kt. Seas 3 ft.
Mon night..NW winds 20 kt. Seas 4 ft.
Tue..W winds 15 kt. Seas 3 ft.
Tue night..W winds 10 kt. Seas 2 ft.
Wed..SE winds 10 kt. Seas 2 ft.
Wed night..NE winds 15 kt. Seas 3 ft.
Thu..E winds 15 kt. Seas 3 ft.
Fri..W winds 5 kt. Seas 1 foot.
PKZ200 Norton Sound- 154 Pm Akdt Sun May 20 2018
Tonight..N winds 20 kt. Seas 3 ft.
Mon..N winds 20 kt. Seas 3 ft.
Mon night..NW winds 20 kt. Seas 4 ft.
Tue..W winds 15 kt. Seas 3 ft.
Tue night..W winds 10 kt. Seas 2 ft.
Wed..SE winds 10 kt. Seas 2 ft.
Wed night..NE winds 15 kt. Seas 3 ft.
Thu..E winds 15 kt. Seas 3 ft.
Fri..W winds 5 kt. Seas 1 foot.

7 Day Forecast for Marine Location Near Kotlik, AK
   Hourly   EDIT   Help
location: 63.05, -163.38     debug


Area Discussion for -
      (on/off)   Help   NOTE: mouseover dotted underlined text for definition
Fxak69 pafg 202108
afdafg
northern alaska forecast discussion
national weather service fairbanks ak
108 pm akdt Sun may 20 2018

Discussion
Synopsis... Thermal trough lies from the middle yukon valley to the
upper tanana valley and a weather front swinging northwest into
the interior will bring showers to most interior locations as it
moves through this evening through Tuesday. The arctic remains
quiet with low stratus ceilings. Trough over the west coast will
continue to produce some isolated showers. Breakup has moved to
the lower yukon, see below for details.

Models... Surface solutions are similar, and they initialized well
against the 20 18z analysis. The canadian is a bit more aggressive
in moving a low to near central this evening, but they all
indicate enhanced trough along the north slopes of the alaska
range this evening moving to lie from from the upper kuskokwim to
the upper yukon flats by Monday evening. A second low will develop
near beaver creek yt Monday afternoon move north to chalkyitsik
by Tuesday morning at 996 mb, then drifts west to beaver and
slowly weakens through Wednesday. Stability indicies are not
great, but there is still some lifted indicies around zero from
dot lake to delta junction this evening. Solutions indicate some
non zero CAPE values with the thermal trough, but nothing
significant. Will use an equal blend for most elements with a
strong lean toward continuity since there are not significant
changes expected.

Aloft... At 500 hpa... Troughing over most of the state as the ridge
has moved east with only weak ridging persisting over the
northeast corner and eastern arctic beaufort sea. A 530 dam center
over st lawrence island will continue to dive south tonight and
merge with a broad 519 dam center that will move to 200 nm
southeast of kodiak island by Monday morning, then persists in the
area into Wednesday. A strong shortwave swinging around the low
will move over the gulf of alaska coast, and southern yukon
territory this evening, and north over the central and eastern
interior tonight to lie from king salmon to mcgrath to tanana to
old crow yt by Monday morning. By Monday evening the trough will
lie from kodiak city to mcgrath to hughes to deadhorse. Weaker
shortwaves will continue to spin across the eastern and central
interior through Monday night. Ridging will build in over the
alaska range Tuesday night with a 547 dam center over the matsu
valley. Weak trough will persist over the western arctic and
chukchi sea along 170w through Monday night. At 850 hpa... Zero
isotherm has pushed north and west over all but the coastal areas
with the +10c isotherm over the fortymile country. Some cooler air
digs south over the central and northwest arctic and northwest
interior Monday afternoon into Tuesday morning, pulls back to the
north. Some cooler air pushed over the outer west coast and st
lawrence island Wednesday will bring slightly cooler temperatures
to the area.

Surface... High pressure will persist over the arctic with a 1029
mb center 400 nm north of point barrow. Broad area of low
pressure over most of the state with a 984 mb low 200 nm south of
kodiak island, a 994 mb low near northway, and a 998 mb low near
marshall. By Monday morning the low south of kodiak has become
quasi stationary, while the low near northway will be near central
and a well defined trough will lie along the north slopes of the
alaska range, and weak troughing will persist over the west
coast. By Tuesday morning the trough will move north to lie from
dillingham to mcgrath to beaver and east, while the low near
kodiak weakens as it slides east to 300 nm from the island. A 1000
mb low will develop in kotzebue sound Monday night and move
northwest across the chukchi sea Tuesday night and Wednesday.

Arctic coast and brooks range... Stratus, and more stratus, and
after that some more stratus, springtime in the arctic. The
20 2000z GOES MVFR ifr lifr probability products indicate ifr
conditions over the eastern arctic coast, with MVFR conditions
over the remainder of the coastal areas, and the plains. Sport leo
24hr microphysics shows a large area of stratus over most of the
coastal areas from mackenzie bay west to point lay with
observations showing 400 to 1000 foot ceilings. Not seeing much
precipitation, but a sprinkle or a flurry is possible. Winds will
persist from the northeast to east at 15 to 30 mph with the
strongest winds over the eastern arctic coast as the gradient gets
pinched as the low move north to the upper yukon flats over most
of the area and the 1025 mb high in the arctic remains stationary.

Temperatures steady to a couple degrees warmer through Wednesday.

West coast and western interior... Cloudy. Trough over the coast is
producing isolated showers up and down the coast, and do not
expect that to change as a shortwave aloft swings into the area
and reinforces the current trough. Some isolated thunderstorms
in the upper kuskokwim valley Monday afternoon, and again Tuesday
afternoon. Patchy dense fog will return to the lower yukon delta
Monday morning, mainly west of anvik, with improving conditions
after 10 am akdt. Winds generally northeast to northwest at 5 to
20 mph except near the bering strait winds to 30 mph. A little
cold air gets wrapped into the coast Tuesday, so expect some
cooler temperature in the outer coastal areas, and st lawrence
island, otherwise no significant change. See below for river
information.

Central and eastern interior... Cloudy. Showers swinging north
through the area tonight and Monday with isolated thunderstorms
from dot lake to delta junction in the evening. Rainfall generally
less than 1 4 inch. Showers will continue to swing north to the
upper yukon flats, and west to the middle yukon Monday. Winds
generally less than 15 mph will be swinging around from southeast
tonight to north Monday to west Tuesday. Rivers continue to run
high, but no issues have been reported and the rainfall will no
produce a significant change in the levels. Not much change in
high temperatures through midweek, but overnight lows in the
tanana valley will be cooler tonight with the showers.

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

Fire weather Thermal trough extends from the middle yukon
valley to the upper tanana valley will slide north to the upper
yukon flats by Tuesday morning. A weather front will spin north
across the area tonight and Monday bringing showers and some
isolated thunderstorms. Some drying behind the front will push
relative humidity values to around 25 percent in the tanana valley
and along the alcan border Monday. Higher values for Tuesday
around 35 percent, then drying again with values around 25 percent
in the middle tanana valley and the upper yukon flats.

Winds generally less than 15 mph through Wednesday. For the
latest fire weather information go to

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
Emmonak, Emmonak Airport, AK62 mi69 minNNW 710.00 miLight Rain45°F42°F90%1005.6 hPa

Wind History from AEM (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 24hrN11N12N11N11N10N9N7NW5N8N6NW6N4NW5N6N8N8N8N9N7N5NW7NW7NW7NW8
1 day ago--NE7NE7NE7NE8NE6NE6N7N6N6N8N8N7--NE11NE8NE11N11N10NE9NE9N12N13N11
2 days agoN12NE12NE13NE10NE7NE10NE9NE12NE11NE10E8E9E8E7E8E9E9E9E11E8NE7NE9NE5E8

Tide / Current Tables for Apoon Mouth, Yukon River, Norton Sound, Alaska
   EDIT   RT Ports Option   Weekend mode (on/off)   (on/off)   Help   One Week of Data
Apoon Mouth
Click for Map
Sun -- 12:04 AM AKDT     Sunset
Sun -- 04:21 AM AKDT     Moonset
Sun -- 05:35 AM AKDT     Sunrise
Sun -- 11:27 AM AKDT     Moonrise
Sun -- 02:49 PM AKDT     4.50 feet High Tide
Sun -- 11:43 PM AKDT     -0.75 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
-0.7-0.4-0.10.30.70.911.21.41.92.433.64.14.44.54.33.72.91.90.90.1-0.4-0.7

Tide / Current Tables for Pikmiktalik River entrance, Norton Sound, Alaska
   EDIT      (on/off)   Help   One Week of Data
Pikmiktalik River entrance
Click for Map
Sun -- 12:03 AM AKDT     Sunset
Sun -- 04:20 AM AKDT     Moonset
Sun -- 05:29 AM AKDT     Sunrise
Sun -- 11:22 AM AKDT     Moonrise
Sun -- 01:07 PM AKDT     5.22 feet High Tide
Sun -- 09:57 PM AKDT     -0.49 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.611.21.41.51.82.22.73.444.655.25.14.63.82.71.60.70-0.4-0.5-0.4

Weather Map and Satellite Images
       (on/off)   HelpWeather Map
wmap_P
GOES Local Image of Alaska    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
Ground Weather Radar Station Nome, 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.