Marine Weather and Tides
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 7:12AM||Sunset 5:10PM||Friday February 21, 2020 2:35 PM AKST (23:35 UTC)||Moonrise 7:22AM||Moonset 2:53PM||Illumination 3%|
7 Day Forecast for Marine Location Near Pelican, AKHourly EDIT Help
Area Discussion for -  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXAK67 PAJK 211448 AFDAJK
Southeast Alaska Forecast Discussion National Weather Service Juneau AK 548 AM AKST Fri Feb 21 2020
SHORT TERM. Onshore flow continues aloft across the gulf into the panhandle and this is expected to continue into Saturday when the showers may taper off slightly as the pattern alters. Out over the central gulf a low just to the south of the gulf will be moving east to the British Columbia coast. A low in the northern gulf will continue to spread showers into the northern portion of the panhandle, Saturday evening into Sunday. A weak trough stretched out over the eastern portion of the gulf between the two lows. The air mass moving in is cooler than the one in place so expect to see a cool down at the surface and most of the precipitation to shift over to snow showers.
Not expected to see any significant accumulations from snow showers, unless they decide to train over the same location repeatedly. Generally expecting snowfall accumulations to top out at 2 to 4 inches for a day once they do the switch over.
The pressure gradient over the northern panhandle weakens this evening, until then winds of 20 to 30 mph with gust to 40 mph are expected in Skagway and along the Klondike highway. The winds then will diminish to around 15 mph. Saturday evening/night models are indicating a weak feature approaching the south central panhandle, and that looks to tighten again and flip the gradient so switched the Lynn Canal back to north and increase back to 20-25 kt.
LONG TERM. /Sunday through Friday as of 10 pm Thursday/ Small split flow upper level pattern over the panhandle with an upstream trough starts out the long term period on Sun. This is eventually replaced by a ridge by Mon. This pattern for the early part of the long range has not changed much from the previous forecast from yesterday. It is what happens after this point that has seen some changes. Yesterday there was a disagreement between the ECMWF and the GFS (with support from ensembles and wpc) on how an upper ridge over the state will evolve, and what it would mean for the panhandle later in the week. Today, the ECMWF has surrendered to the GFS idea of the upper ridge pinching off into a cut off high over eastern Russia while a strong surface front approaches the Gulf and panhandle from the S mid next week. Forecast confidence for the mid week period has improved as a result with most models favoring the warmer wetter scenario for the mid week period, but timing issues still remain.
Overall, the general forecast trends are a cold start to the late weekend and early next week as the westerly flow continues to pump gulf-modified cold air into the panhandle. 850 mb temps will be around -9 to -12C through Mon evening, plenty cold enough for snow for most areas. Some weaker lows and troughs will be moving through the area during this time so some snow accumulation is not out of the question for many areas. The sticking point is how much snow will various areas get. The details or timing and position for the individual lows and troughs is sketchy at best right now so best idea is a few inches with the possibility of higher or lower amounts depending on where showers track and their intensity. Into mid week, the trends become warmer and wetter as a strong front moves in from the south. Guidance is favoring gale force winds along the front as well as temperatures warm enough for rain for most areas. Orientation and timing of the front remain a problem however so forecast confidence is lacking in that area. Favored WPC and NBM for any needed updates today.
AJK Watches/Warnings/Advisories. PUBLIC . Strong Wind through this evening for AKZ018. MARINE . Small Craft Advisory for PKZ012-013-022-031-033-035-036-041>043- 051>053.
Visit us at http://www.weather.gov/Juneau
Weather Reporting StationsEDIT (on/off)  Help NOTE: Click on distance to see the station location on a map
|Stations||Dist||Age||Wind||Air Temp||Water Temp||Waves||Pressure||DewPt|
|ELFA2 - 9452634 - Elfin Cove, AK||24 mi||54 min||39°F||42°F||1001.6 hPa|
|CSPA2 - Cape Spencer, AK||27 mi||86 min||W 18 G 24||37°F||999.5 hPa||31°F|
|BLTA2 - Bartlet Cove AK||50 mi||70 min||S 5.1 G 8||39°F|
Airport ReportsEDIT (on/off)  Help Click EDIT to display multiple airports. Follow links for more data.
|Elfin Cove - Elfin Cove Seaplane Base, AK||25 mi||1.8 hrs||W 10||12.00 mi||Overcast||39°F||32°F||75%||1000 hPa|
Link to 5 minute data for PAEL
Wind History from AEL (wind in knots)
|1 day ago||W||W||Calm||E||E|
|2 days ago||E||E||W||W|
EDIT Weekend mode (on/off) (on/off)  Help One Week of Data
EDIT (on/off)  Help One Week of Data
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GEOS Local Image of PacificNorthwest 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
Wind Forecast for (18,4,5,8)(on/off)  Help
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