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 8:25AM||Sunset 6:01PM||Thursday February 20, 2020 5:35 PM AKST (02:35 UTC)||Moonrise 8:36AM||Moonset 1:54PM||Illumination 7%|
7 Day Forecast for Marine Location Near Nunam Iqua, AKHourly EDIT Help
Area Discussion for -  (on/off)  Help NOTE: mouseover dotted underlined text for definition
FXAK69 PAFG 202340 AFDAFG
Northern Alaska Forecast Discussion National Weather Service Fairbanks AK 240 PM AKST Thu Feb 20 2020
SYNOPSIS. Snow and blowing snow on the West Coast will diminish late tonight and Friday morning with blizzard conditions near Shaktoolik expected to diminish this evening. Winds through the Alaska Range Passes continue to diminish as light snow moves into the Western and Central Interior through Friday night.
DISCUSSION. A strong storm near Kodiak Island will continue to push north and east into the Eastern Interior on Friday and over the northeastern Interior on Saturday. This will spread snow over the Western Interior this evening and into the Central Interior Friday and the Eastern Interior Friday night and Saturday. Expect 2 to 4 inches over the West Coast and Western Interior and 1 to 3 inches over the Central and Eastern interior into Saturday. A cold airmass will push into Northern Alaska along the West Coast and Western Interior on Friday and into the Central and Eastern Interior Saturday and Sunday.
Aloft at 500 mb a deep longwave trough over the Central Bering Sea and a longwave ridge over the Yukon will slowly drift east through the weekend with the trough axis pushing east over the West Coast of Alaska and the Upper level ridge pushing east into the Northwest Territories. As the tough axis pushes east over the West Coast a cold airmass will push south and east into Northern Alaska. 850 mb temperatures at Fairbanks currently near 5 below will drop to 8 below on Friday morning and 14 below on Saturday and near 24 below on Sunday and Monday. An upper level ridge begins to build back in over the Eastern Bering Sea and Western Alaska on Monday and will bring warmer temperatures to these areas on beginning Monday, however cold temperatures are likely to persist in Interior Valleys into the middle of next week.
On the surface, a weak low pressure system that was near Kotzebue this morning has weakened into a trough and continues to move north this evening into the southern Chukchi Sea where it will be absorbed by an 1000 mb low just east of Wrangel Island. A mix of low ceilings, fog and light snow will continue through Friday afternoon over the North Slope as the trough pushes north of the Coast. A 985 mb low over south central Alaska will continue to weaken as is pushes north and east into the Northeastern Interior tonight. As the low pushes north and east light show will push north and east along with the low over the Interior. The heaviest snow will fall over the YK Delta and Western Interior where 2 to 4 inches of snow is expected to fall through Friday night and 1 to 3 inches of snow is expected to fall in the Central interior with the heaviest snowfall expected north and west of Fairbanks. Generally less than 1 inch of snow is expected to the south and east of Fairbanks. High pressure builds east out of the Bering Strait and into the Western Interior Saturday and pushes into the Central and Eastern Interior on Sunday. Temperatures in the 20s today over the Central interior will fall into the teens on Friday and into the single digits on Saturday. High temperatures in Fairbanks on Sunday will struggle to reach zero with low temperature dropping again into the 20s below and colder by Monday morning. Temperatures will slowly moderate by the middle of next week.
Models, The 12z model suite initialized fair in respect to feature location and track but lacked appropriate depth on the low moving east out of Bristol Bay into South Central Alaska and on the low in the Northwest Territories with the net affect being that the advertised gradient along the West Coast was stronger than advertised. We increased forecasted winds and lowered visibility forecasts in falling snow along the Bering Strait, Northern Bering Sea, the Southern Chukchi Sea as well as along the West Coast as a result. Winds in these areas are expected to decrease this evening as the low fills in as it pushes into the interior. Model spread between model families and from run to run is minimal in the short range and mid range and is reasonable in the long range.
Coastal Hazard Potential Days 3 and 4 . None.
AFG WATCHES/WARNINGS/ADVISORIES. Blizzard Warning for AKZ212.
Winter Weather Advisory for AKZ207-AKZ210-AKZ213-AKZ214.
Brisk Wind Advisory for PKZ200-PKZ210-PKZ215-PKZ220.
CCC FEB 20
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Wind History from AEM (wind in knots)
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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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Other links: Northern Pacific Contential US Full GOES-East
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