Saturday, June12, 2021
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Marine Weather and Tides
Prudhoe Bay, AK

Version 3.4
NOTICE
3/30/2021 -- ANZ330 has been split into ANZ331 and ANZ332. Click EDIT in Marine Forecast and select your new zone.
1/26/2021 -- The West Coast Satellite images havd been updated. They now use GEOS-17.
1/1/2021 -- The 7 day forecast are now working well. Thank you NOAA for your support.

Sunrise 2:54AMSunset 12:47AM Saturday June 12, 2021 6:18 AM AKDT (14:18 UTC) Moonrise 12:00AMMoonset 12:00AM Illumination 7% Phase: Waxing Crescent; Moon at 2 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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PKZ240 Cape Halkett To Flaxman Island- 356 Am Akdt Sat Jun 12 2021
Today..NE winds 15 kt. Fog and freezing fog. Vsby 1 nm or less.
Tonight..NE winds 15 kt. Freezing fog and fog. Vsby 1 nm or less.
Sun..NE winds 15 kt. Fog and freezing fog. Vsby 1 nm or less.
Sun night..NE winds 15 kt. Fog and freezing fog.
Mon..E winds 15 kt. Fog and freezing fog.
Mon night..E winds 15 kt. Fog and freezing fog.
Tue..SE winds 15 kt.
Wed..W winds 15 kt.
PKZ200 Norton Sound- 406 Am Akdt Sat Jun 12 2021
Today..E winds 10 kt. Seas 2 ft. Fog.
Tonight..E winds 10 kt. Seas 2 ft. Fog.
Sun..SE winds 15 kt. Seas 3 ft. Fog.
Sun night..SE winds 15 kt. Seas 3 ft. Fog.
Mon..SE winds 15 kt. Seas 3 ft.
Mon night..S winds 20 kt. Seas 3 ft.
Tue..S winds 10 kt. Seas 3 ft.
Wed..N winds 10 kt. Seas 2 ft.


7 Day Forecast for Marine Location Near Prudhoe Bay, AK
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location: 70.46, -149.44     debug


Area Discussion for -
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FXAK69 PAFG 121329 AFDAFG

Northern Alaska Forecast Discussion National Weather Service Fairbanks AK 529 AM AKDT Sat Jun 12 2021

SYNOPSIS. A warming trend in temperatures is expected for the Interior over the next several days, with many locations reaching the low 80s early next week. The Interior will also have to contend with afternoon and evening thunderstorms today and Sunday. The North Slope will have to contend with areas of fog and low stratus at times through the weekend. The west coast will see isolated to scattered showers today with rain likely on Sunday as a system moves in from the southwest. The rainy conditions will continue for the West Coast into early next week.

DISCUSSION. The 12/00 UTC model suite generally initialized well when compared to observational data. The models show better agreement than they have the past couple of nights. The operational models are in relatively good agreement with the synoptic scale pattern out through the middle of the upcoming week. We leaned on a NAM/GFS blend for the winds with hand edits for local effects. We used a consensus blend for QPF values and used the SREF to help bump up our PoPs, especially along the west coast.

Aloft, at 500 mb, a 552 dam low is currently over the Y-K Delta. This low will continue to dive to the southeast today, reaching the Gulf of Alaska on Sunday. A 546 dam low will move to the north over the Northwest Territories of Canada today, helping to move a ridge that has been situated over Yukon Territory off to the east. A ridge will start to strengthen over the Interior on Sunday, with the ridge continuing to strengthen through Tuesday. A 537 dam low will move east into the Gulf of Anadyr on Sunday and will move north over the Chukotsk Peninsula Sunday night. This system will bring wet weather to the west coast of Alaska.

Central and Eastern Interior . Thunderstorms will be our biggest concern for the Interior over the weekend. Isolated thunderstorms are expected both days across much of the Interior. The upper Tanana Valley and Fortymile Country will likely see the greatest concentration of storms today, while on Sunday, areas from Fairbanks east will see the greatest concentration of storms. Both days, thunderstorms will form over along a thermal trough that will stretch across the Interior. Small hail and brief periods of gusty winds are possible near any thunderstorm that develops. Thunderstorm potential will diminish on Monday as an upper level ridge strengthens over the area. Temperatures will see a rising trend over the next few days, with the warmest temperatures so far this season expected early next week. Today, temperatures will be in the upper 60s to lower 70s across much of the Interior. Temperatures will continue to warm on Sunday and Monday and by Tuesday, high temperatures in the lower 80s will be widespread across a wide swath of the Interior.

North Slope and Brooks Range . Satellite early this morning shows a decent sized area of fog and low stratus stretching from Utqiagvik into the Chukchi Sea. Utqiagvik has seen near zero visibility at times overnight due to fog. Low visibility fog and low status will likely continue to be an issue through this morning in Utqiagvik. High pressure will build today over the Beaufort Sea. As the high builds, easterly winds will increase along the coast, with easterly winds continuing into the weekend. This will likely bring fog and low stratus to areas along the coast through the weekend, especially to the east of Utqiagvik. Thunderstorms are possible in the eastern Brooks Range this afternoon and evening and again on Sunday. Some convection allowing models are hinting at the potential for some isolated thunderstorms this evening on the north side of the Brooks Range as well. We gave some play to this, and extended the area of isolated thunderstorms in the inherited grids slightly to the north. Aside from this, scattered to isolated showers are expected this weekend for the Brooks Range and along the coast west of Utqiagvik. With the upper level ridge building over the area, we expect a warming trend in temperatures for most locations, especially away from the coast. Onshore flow will likely will likely keep temperatures along the Beaufort Sea Coast near normal through the weekend.

West Coast and Western Interior . Isolated to scattered showers are expected today along the West Coast, with Isolated thunderstorms in the Western Interior. A front associated with a low moving north through the Bering Sea will bring rain to areas along the west coast Sunday into Tuesday. This front will also bring an increase in southerly winds along the coast on Sunday with speeds 15 to 25 mph range at times. Highs in the 40s to lower 50s expected along the coast through the weekend. A warming trend is expected for the western Interior this weekend as a ridge builds in. Highs in the western Interior will be in the 60s today rising into the lower to mid 70s by Monday.

Coastal Hazard Potential Days 3 and 4 . None.

Extended forecast for days 4 to 7 . The extended period begins on Tuesday with a ridge firmly in place over the Interior bringing widespread temperatures in the lower 80s. Rainy conditions will continue on Tuesday for the West Coast, before tapering off Tuesday night as the trough moves north. As this trough moves to the north Tuesday night it will bring some precipitation to the western Brooks Range and the Arctic Coast. The west coast will see improving conditions on Wednesday as the ridge over the Interior builds west. The ridge looks to remain in place over northern Alaska in some form into next weekend although there is still some uncertainty in the details. A couple of lows moving into the Gulf of Alaska have the potential to send shortwave from east to west across the southern Interior along the south side of the ridge late next week. This has the potential to bring showers and thunderstorms, although there is still a lot of model uncertainty in the details of this.

FIRE WEATHER. Thunderstorms will be a concern this weekend. Today widely scattered thunderstorms are anticipated across the Upper Tanana Valley and the Fortymile country, with isolated thunderstorms over the the rest of the Interior and the eastern Brooks Range. On Sunday, widely scattered thunderstorms are anticipated from Fairbanks east, with isolated thunderstorms elsewhere over the Interior. Thunderstorms activity will be limited on Monday and Tuesday as an upper level ridge builds over the area. This ridge will also cause a warming trend into early next week. Temperatures early next week will be the warmest so far this season, with many locations in the Central and Eastern Interior seeing highs in the low 80s with minimum relative humidity values in the mid 20 percent range. We will have to watch the winds near Delta Junction on Monday and Tuesday with the warm and dry conditions. Overnight Relative Humidity recovery will be good this weekend, becoming poor next week.

HYDROLOGY. Yukon River in Canada continues to run near bankfull, but the gage at Eagle is running low, so no issues at this time. We will be watching it closely as heavy showers will be in the area through the weekend. Most interior rivers are showing some diurnal rises and falls as snowmelt continues at higher elevations, but they continue to run below normal summer levels. Breakup continues in the Arctic with no known issues. For the latest river information go to www.weather.gov/aprfc.

AFG WATCHES/WARNINGS/ADVISORIES. None.

JUN 21


Weather Reporting Stations
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On 03/09/2021 the NDBC primary processing servers were shut off due to a facilities issue. Station pages on the NDBC website are not updating and there is no ETR at this time. We will update this banner as we learn more.
Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRDA2 - 9497645 - Prudhoe Bay, AK 49 mi48 min E 15 G 16 35°F 39°F1015.9 hPa

Wind History for Prudhoe Bay, AK
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure
Kuparuk, Ugnu-Kuparuk Airport, AK13 mi33 minENE 1210.00 miMostly Cloudy37°F37°F100%1015.9 hPa

Link to 5 minute data for PAKU

Wind History from AKU (wind in knots)
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Last 24hrW5W6NW6N3W8W61E4E7N9NE10NE9NE10----------------NE10NE10NE12
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2 days agoE5E5E32NE5E23E5E5NE7E7E9E8----------------E9E9E9

Tide / Current Tables for Prudhoe Bay, Alaska
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Prudhoe Bay
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Sat -- 02:15 AM AKDT     0.80 feet High Tide
Sat -- 08:15 AM AKDT     0.38 feet Low Tide
Sat -- 03:19 PM AKDT     1.09 feet High Tide
Sat -- 09:43 PM AKDT     0.58 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.70.80.80.80.70.60.50.40.40.40.50.60.80.911.11.110.90.80.70.60.60.6

Tide / Current Tables for Prudhoe Bay, Dock #2, Alaska
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Prudhoe Bay
Click for Map
Sat -- 02:46 AM AKDT     0.50 feet High Tide
Sat -- 08:56 AM AKDT     -0.06 feet Low Tide
Sat -- 03:52 PM AKDT     0.76 feet High Tide
Sat -- 10:06 PM AKDT     0.19 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.

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0.30.40.50.50.50.30.20.1-0-0.1-00.10.30.50.60.70.80.70.60.50.30.20.20.2

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NOTE: This section has been updated as of 1/26/2021. If the image you are expecting is not showing, please let me know. You may use the EDIT function to update your location.
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