Thursday, August17, 2017 L-36.com


Marine Weather and Tides
Prudhoe Bay, 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 5:46AMSunset 10:03PM Thursday August 17, 2017 3:30 AM AKDT (11:30 UTC) Moonrise 10:30PMMoonset 9:05PM Illumination 23% Phase: Waning Crescent; Moon at 25 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- 1131 Pm Akdt Wed Aug 16 2017
Tonight..E winds 20 kt. Seas 4 ft. Fog. Vsby less than 1 nm.
Thu..E winds 15 kt. Seas 4 ft. Fog. Vsby less than 1 nm.
Thu night..NE winds 10 kt. Seas 3 ft.
Fri..NE winds 10 kt. Seas 2 ft.
Fri night..NE winds 5 kt. Seas 2 ft.
Sat..E winds 10 kt. Seas 2 ft.
Sat night..E winds 15 kt. Seas 2 ft.
Sun..NE winds 10 kt. Seas 2 ft.
Mon..N winds 10 kt. Seas 2 ft.
PKZ200 Norton Sound- 223 Pm Akdt Wed Aug 16 2017
Tonight..W winds 15 kt. Seas 3 ft subsiding.
Thu..S winds 10 kt. Seas 2 ft.
Thu night..NW winds 10 kt. Seas 3 ft.
Fri..NW winds 10 kt. Seas 3 ft.
Fri night..NW winds 15 kt. Seas 3 ft.
Sat..N winds 15 kt. Seas 3 ft.
Sat night..NW winds 15 kt. Seas 2 ft.
Sun..NW winds 10 kt. Seas 2 ft.
Mon..NW 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 162118
afdafg
northern alaska forecast discussion
national weather service fairbanks ak
118 pm akdt Wed aug 16 2017

Discussion
The longwave trough situated along the west coast of alaska will
shift east by Thursday and remain over mainland alaska through
early next week. This will result in periods of rain or showers
and temperatures near or slightly cooler than normal persisting
across northern alaska. No significant weather impacts are
anticpated at this time through the weekend.

Models intialized well and are in good agreement through Friday
with position and strength of features. Differences in model
solutions begin to develop by the weekend but the general
consensus is for the longwave trough to persist over alaska into
next week.

A short wave trough over the interior will move north to the
central brooks range tonight and to the northwest arctic coast
Thursday night. Upslope flow will enhance the preciptation as it
crosses the brooks range with 1 to 1.5 inches of rain possible
between the dalton highway and anaktuvuk pass and up to 1 inch
possible on north slope. The snow level will remain above 4500
feet so the bulk of the precipitation will fall as rain and runoff
into the rivers. Elsewhere across the forecast area, several weak
features will allow shower activity to continue over much of the
area. A thermal trough stretching arctic village to chicken may
kick off some isolated thunderstorms in the eastern interior
through Friday.

The pressure gradient will remain generally weak over most of the
forecast area. Marine winds will stay below small craft the next
few days, although northwest winds may increase to 25 kt in the
bering strait on Friday. Persistent northwest winds 15-20 kt
across the chukchi sea will bring incresing waves to the seward
peninsula coast at shishmaref thurday night and into the weekend,
but high surf or significant coastal erosion is not expected.

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

Fire weather No issues with the cool and wet pattern.

Hydrology Rivers and streams in the central brooks range, such
as in the koyukuk river basin, are rising from recent rains. The
additional rainfall tonight and into thurday will bring water
levels to near bankfull on some smaller streams but flooding is
not anticipated at this time. A similar scenerio is expected on
some of the north draining rivers as well. Recent cooler
temperatures aloft in the eastern alaska range and wrangels has
significantly slowed down glacial runoff into the tanana river.

The tanana river near tok has dropped considerably during the past
24 hours and overland flow causing flooding near the tetlin
village road and high water along the alaska hwy should begin to
recede some during the next few days.

Afg watches warnings advisories
None.

Aug 17


Weather Reporting Stations
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Stations Dist Age Wind Air TempWater Temp WavesPressureDewPt
PRDA2 - 9497645 - Prudhoe Bay, AK 49 mi43 min ESE 22 G 25 41°F 44°F997 hPa

Wind History for Prudhoe Bay, AK
(wind in knots)    EDIT      (on/off)   Help
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NW3
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NE14
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NE8
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Airport Reports
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AirportDistAgeWind ktVisibilitySky/WeatherTempDewPtHumidityPressure

Wind History from AKU (wind in knots)
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Last 24hr----------------SW5SW5S42E4E9E8E11E10E14E14E14
G20
E12
G19
E18
G22
E22E22
1 day ago----------------N43NW4W6W8W10W10W12SW15W14W16W17W14W12W13W16
2 days ago----------------NE16NE17NE18NE17
G24
NE17NE17
G21
NE16NE16NE15
G21
NE15NE14--NE16NE14NE14NE13

Tide / Current Tables for Cross Island (Dinkum Sands), Alaska
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Cross Island (Dinkum Sands)
Click for MapNote: NOS uses UTC-10 for LST; AKST (since 1983) is UTC-9

Thu -- 03:44 AM AKDT     0.02 feet Low Tide
Thu -- 04:55 AM AKDT     Sunrise
Thu -- 11:29 AM AKDT     0.62 feet High Tide
Thu -- 06:24 PM AKDT     0.21 feet Low Tide
Thu -- 09:58 PM AKDT     Moonset
Thu -- 10:52 PM AKDT     Sunset
Thu -- 10:53 PM AKDT     0.34 feet High Tide
Thu -- 11:24 PM AKDT     Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Sorry tide depth graphs only, please select another station.
12am1am2am3am4am5am6am7am8am9am10am11am12pm1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm
0.20.10.1000.10.10.20.40.50.60.60.60.60.50.40.30.20.20.20.20.30.30.3

Tide / Current Tables for
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Weather Map and Satellite Images
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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
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weather_mapweather_map weather_map

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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.