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PKZ805 Moses Point To Sledge Island Out To 15 Nm- 100 Pm Akst Thu Nov 30 2023
.heavy freezing spray warning in effect through Friday afternoon...
.small craft advisory in effect through this evening...
Tonight..N winds 25 kt. Seas 4 ft subsiding. Freezing fog. Snow. Heavy freezing spray.
Fri..NE winds 15 kt. Seas 3 ft. Heavy freezing spray.
Fri night..NE winds 20 kt. Seas 4 ft. Heavy freezing spray.
Sat..NE winds 20 kt. Seas 4 ft. Heavy freezing spray.
Sat night..E winds 10 kt. Seas 2 ft.
Sun..E winds 10 kt. Seas 2 ft.
Sun night..N winds 10 kt. Seas 2 ft.
Mon..N winds 15 kt. Seas 3 ft.
Tue..NE winds 15 kt. Seas 3 ft.

FXAK69 PAFG 302248 AFDAFG

Northern Alaska Forecast Discussion National Weather Service Fairbanks AK 148 PM AKST Thu Nov 30 2023

SYNOPSIS

Moderate southerly chinook winds will continue across the Alaska Range this afternoon and continue into this evening then decrease late tonight. This will cause temperatures across most of Northern Alaska to remain well above normal through Fri. The Interior will cool closer to normal over the weekend, while the West Coast and Arctic Coast will remain above normal into early next week due to the open water in those areas.

DISCUSSION

Aloft...
The long wave pattern consists of a deep trough over Eastern Russia and the Bering Sea. A series of strong short wave troughs will rotate around the long wave trough and move north across Alaska. These short waves will gradually erode the long wave ridge and pull the long wave trough east over AK this weekend. This will cause cooling this weekend over Northern AK.

Surface...
A weather front stretching from this low east to Demarcation Point will move north of the eastern Arctic Coast of Alaska today, remain north of the Coast through Fri, then move back south along the eastern Arctic Coast on Fri night and Sat. These features are causing areas of freezing fog over the Arctic Coast that will improve over the Eastern Arctic Coast this afternoon as winds turn southerly, while fog will continue over the Western Arctic Coast into Fri. Fog will move back over the Eastern Arctic Fri night as the front moves back south over the coast.

Interior...Wind advisories still in effect for Delta Junction south as southeast winds gusting 30 to 40 mph at Delta Junction will continue into this evening. South winds gusting to 60 mph through Alaska Range Passes will develop later this morning and continue into this evening.

Winter weather advisory still in effect for east winds gusting 30 to 40 mph over Dalton Highway Summits between the Yukon River and Coldfoot will continue into this afternoon and cause reduced visibility in blowing snow. These winds will decrease this evening and visibility will improve. Another warm day for the Interior with highs near 20 degrees. Turning colder Friday into the weekend with low temps dipping below zero over the weekend.

west coast...A shortwave will lift to the north and snow will develop this afternoon over the Northern and West Interior and then over the West Coast and Western North Slope tonight and Fri.
2 to 3 inches of snow possible through Friday over the west coast inland areas. 1 to 2 inches over Northwest Alaska. Areas of fog and stratus and low ceilings will persist over the Bering Strait through the Saturday.

North slope...A weak trough will lift across the north slope but not much in the way of precip, except some snow showers in the Brooks Range. There is also patchy dense freezing fog and possibly freezing drizzle over the eastern north slope through tonight.
Areas of 1/4 SM visibility expected as well. Visibility could improve slightly as winds shift southerly this evening. Low single digits for highs and 5 below zero at night in some areas through the weekend.

Extended forecast...Looking into next week, troughing will persist and unsettled weather will continue over the west coast while weak southerly flow remains over the Interior. Surface temps will stay cold. 850 temps progged to drop to 15 to 20 below over the Interior and northern Interior.

Coastal Hazard Potential Days 3 and 4...None.

AFG WATCHES/WARNINGS/ADVISORIES
AK...Winter Weather Advisory for AKZ832.
Wind Advisory for AKZ837-849.
PK...Heavy Freezing Spray Warning for PKZ801.
Heavy Freezing Spray Warning for PKZ802.
Brisk Wind Advisory for PKZ803-804.
Small Craft Advisory for PKZ805-852.
Heavy Freezing Spray Warning for PKZ805-806-811.
Small Craft Advisory for PKZ806-856.
Small Craft Advisory for PKZ807.
Heavy Freezing Spray Warning for PKZ807.
Heavy Freezing Spray Warning for PKZ810.
Small Craft Advisory for PKZ810-811-857.
Brisk Wind Advisory for PKZ815.
Small Craft Advisory for PKZ816-817.
Small Craft Advisory for PKZ850.
Small Craft Advisory for PKZ851-854.
Heavy Freezing Spray Warning for PKZ852.
Small Craft Advisory for PKZ853.
Heavy Freezing Spray Warning for PKZ856.
Heavy Freezing Spray Warning for PKZ857.
Heavy Freezing Spray Warning for PKZ858.
Brisk Wind Advisory for PKZ861.

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