Wednesday, January22, 2020
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Marine Weather and Tides
Emmonak, AK

Version 3.4
NOTICE
12/16/2019 NOAA is having trouble with requests that include wind gusts. I am posting graphs without wind gusts until it gets fixed.
10/9/2019 Updated the Marine Zones.
9/4/2019 Fixed the weather maps due to NOAA moving them.
7/25/2019 New feature in the Airports section gives a link to 5 minute updates for data reports.

Sunrise 9:40AMSunset 4:41PM Wednesday January 22, 2020 12:16 AM AKST (09:16 UTC) Moonrise 9:16AMMoonset 1:43PM Illumination 8% Phase: Waning Crescent; Moon at 27 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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PKZ200 Norton Sound- 236 Pm Akst Tue Jan 21 2020
Tonight..SE winds 10 kt becoming sw.
Wed..SW winds 15 kt.
Wed night..W winds 15 kt.
Thu..NW winds 15 kt.
Thu night..N winds 10 kt.
Fri..N winds 15 kt.
Fri night..N winds 20 kt.
Sat..N winds 20 kt.
Sun..N winds 20 kt.
PKZ200 Norton Sound- 236 Pm Akst Tue Jan 21 2020
Tonight..SE winds 10 kt becoming sw.
Wed..SW winds 15 kt.
Wed night..W winds 15 kt.
Thu..NW winds 15 kt.
Thu night..N winds 10 kt.
Fri..N winds 15 kt.
Fri night..N winds 20 kt.
Sat..N winds 20 kt.
Sun..N winds 20 kt.


7 Day Forecast for Marine Location Near Emmonak, AK
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location: 63.03, -164.47     debug


Area Discussion for -
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FXAK69 PAFG 212152 AFDAFG

Northern Alaska Forecast Discussion National Weather Service Fairbanks AK 1252 PM AKST Tue Jan 21 2020

Synopsis. Decaying weather front moving across the state will spread some flurries or light snow to most Interior areas tonight, but no significant accumulation is expected. Weak high pressure persists over the eastern half of the state and high pressure is building east over the Arctic Plain. Behind the front cold air will dig back over the state from the northwest the remainder of the week. Temperatures will slowly cool the remainder of the week with temperatures this weekend falling to the 30 below to 50 below range. The coldest temperatures will be in the Upper Yukon Valley and the Upper Tanana Valley.

DISCUSSION.

Models . Another run of solutions with very good run to run continuity, even into the extended periods. The 21/12Z solutions continue to develop an omega block pattern over the area late in the week. Surface solutions initialized well against 21/15Z local analysis even though the pattern across the state has become pretty flat. Major feature strength is more in line with the solutions today than it has been the last week or so. NAM precipitation is producing lower values today than the other solutions so will lean more on the GFS and SREF for this forecast cycle. Temperatures will be one of the bigger challenges as deep cold air will be moving over the area, but solutions keep quite a bit of clouds over the area and that will impact how cold or warm it will be at any particular location.

Aloft . At 500 hpa . Ridging over the Beaufort Sea continues to weaken with a 518 dam high near Banks Island. Weak ridging is pushing west over the Arctic offshore waters. Ridging over the Yukon Territory but is weakening as it rotates to the east. Troughing that extended east over the offshore waters yesterday north to lie along 80N and the low near Wrangel Island has moved to 300 nm northwest of the Island at 492 dam. The low that was over the Gulf of Anadyr has weakened and is merging with the low over the Siberian Arctic. Troughing extends southeast from the low north of St Lawrence Island, then over Emmonak to Anchorage to Yakutat. Ridging will continue to weaken as the trough moves northeast to lie over Shishmaref to Allakaket to Chalkyitsik Wednesday morning, and over the Arctic Coast late Wednesday night. A trough will be digging south over the Gulf of Anadyr tonight as ridging builds north over the Western Bering Sea. Another trough will develop over 170W as the ridge builds. The trough will move over the West Coast south of the Bering Strait Wednesday morning as a 500 dam low develops over Kotzebue Sound. By Thursday morning the low moves over the Middle Koyukuk Basin as the trough moves to lie over Indian Mountain to McGrath to Chignik. A low will develop in the trough over McGrath Thursday morning and dive southeast over the Kenai Peninsula to the Northern Gulf of Alaska, then stall over the area as it slowly fills. Ridging to the east will build north with the axis over the Yukon Territory/Northwest Territories border, and ridging to the west will continue to build north with the axis over Cold Bay to St Matthew Island to the Western Gulf of Anadyr by Friday morning. The low in the Siberian Arctic will move to 80N 180 by Friday morning with troughing extending southeast to Banks Island At 850 hpa. Temperatures over the forecast area in the -10C to -20C range today. Temperatures will be cooling from the west as the -20C isotherm moves to lie from Point Hope to Kotzebue to Anvik to St Matthew Island by Wednesday afternoon. Temperatures over most of state will range from -18C to -28C by Thursday afternoon. A significant cold pocket will be developing over the Yukon Territory and extending southwest over the Middle Tanana Valley to the Upper Kuskokwim Valley. Temperatures will continue to cool through the weekend with a pool of -42C over the north central Yukon Territory and -30C to -35C over most of the forecast area east of Galena.

Surface . High pressure persists over most of the state, but the pattern has weakened significantly. Troughing over the Arctic Plain with a 998 mb low near Nuiqsut will lift offshore tonight as high pressure over the Northeast Arctic weakens. A 998 mb low near the Bering Strait will weaken and drift over the Seward Peninsula at 1005 mb by Wednesday afternoon. A decaying weather front that is spreading snow over parts of the West Coast will continue inland over the Western Interior tonight as high pressure over Chukotka build southeast over the Eastern Bering Sea with a 1015 mb high near Cold Bay. The decaying front will continue to move east and north across the Interior as it dissipates. By Thursday afternoon the front will be barely hanging on over the Southeast Interior as high pressure builds east across the Arctic Plain, and the high pressure over the Eastern Bering Sea moves over the Chukchi Sea, Bering Strait, Lower Yukon Delta, and Bristol Bay. A 982 mb low in the Northeast Pacific will move off the Southeast Panhandle Coast by Wednesday evening at 983 mb, then into the Northern Gulf of Alaska by Thursday afternoon where it will persist through the weekend as it weakens.

Arctic Coast and Brooks Range . Mainly high clouds moving north across the area tonight with a chance of snow along the coast. Widns will swing around from northeast to southwest tonight as high pressure builds east across the Plains. Temperatures a bit warmer tonight and tomorrow, then cooling through the weekend. The biggest factor with temperatures is whether or not stratus develops or moves over the area. Winds 5 to 15 mph through Friday.

West Coast and Western Interior . Decaying weather front still spreading flurries or light snow across the area and will spread into the Western Interior this evening. No significant accumulation is expected as amounts range up to 1 inch. Winds generally light and variable inland and northeast to southeast along the coast at 5 to 15 mph becoming southwest to west Wednesday. Temperatures warmer through tonight then cooling.

Central and Eastern Interior . Increased clouds with flurries or a chance of accumulating snow. Any accumulating snowfall will be less than 1 inch. Winds generally light and variable. Temperatures will be cooling through the weekend with another round of very cold temperatures this weekend and to start next week.

Coastal Hazard Potential Days 3 and 4 . None.

Extended forecast for days 4 to 7 . Decreasing chances of precipitation with more breaks in the clouds this weekend, then clearing. Cold air digs back southwest over the state with temperatures falling through the weekend.

AFG WATCHES/WARNINGS/ADVISORIES.

None.



SDB JAN 20


Weather Reporting Stations
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Link to 5 minute data for PAEM

Wind History from AEM (wind in knots)
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Tide / Current Tables for Kawanak Pass entrance, Yukon River, Alaska
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Kawanak Pass entrance
Click for Map
Wed -- 03:21 AM AKST     1.72 feet High Tide
Wed -- 10:15 AM AKST     Moonrise
Wed -- 10:25 AM AKST     -0.26 feet Low Tide
Wed -- 10:57 AM AKST     Sunrise
Wed -- 02:42 PM AKST     Moonset
Wed -- 04:59 PM AKST     2.12 feet High Tide
Wed -- 05:22 PM AKST     Sunset
Wed -- 11:21 PM AKST     0.50 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.81.21.51.71.71.51.20.80.3-0-0.2-0.20.10.61.21.722.121.81.410.70.5

Tide / Current Tables for Kwikluak Pass, Yukon River, Alaska
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Kwikluak Pass
Click for Map
Wed -- 02:42 AM AKST     1.37 feet High Tide
Wed -- 10:10 AM AKST     Moonrise
Wed -- 10:36 AM AKST     -0.13 feet Low Tide
Wed -- 10:54 AM AKST     Sunrise
Wed -- 02:51 PM AKST     Moonset
Wed -- 04:20 PM AKST     1.70 feet High Tide
Wed -- 05:27 PM AKST     Sunset
Wed -- 11:32 PM AKST     0.25 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.611.31.41.31.10.90.60.30.1-0.1-0.10.20.61.11.51.71.71.51.310.70.40.3

Weather Map
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GEOS 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.
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Ground Weather Radar Station Nome, AK
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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 numerous 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.