Sunrise 5:11 AM   Sunset 8:39 PM Moonrise 12:00 AM   Moonset 4:32 AM

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PKZ011 Glacier Bay- 233 Pm Akdt Fri Apr 26 2024
Tonight - Variable winds 10 kt. Seas 2 ft or less. Sat - SE wind 10 kt becoming nw in the afternoon. Seas 2 ft or less. Sat night - NW wind 10 kt becoming se late. Seas 2 ft or less. Sun - SE wind 10 kt. Seas 2 ft or less. Sun night - S wind 10 kt. Seas 2 ft or less. Mon - NW wind 10 kt. Seas 2 ft or less. Tue - Light winds. Seas 2 ft or less. Wed - Light winds. Seas 2 ft or less.

PKZ005
No data

FXAK67 PAJK 262233 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 233 PM AKDT Fri Apr 26 2024

SHORT TERM
/Friday evening to Sunday morning/...Main challenge of the short term is a developing system in the Gulf that will impact the region this weekend. Upper air sites and surface pressure observations along the Aleutian chain and into the Gulf are indicating more agreement with the ECMWF; with the GFS ensemble and deterministic still holding on to a more aggressive surface winds. The latest forecast has tried to capture the best of all solutions, highlighting the location and extent of the surface pressure, while taking into consideration a few high resolution models placing gale force winds along our southern Gulf waters, and how stability might impact momentum transfer to the surface.

For now, expect 25 to 30 knot south southeasterly winds develop Saturday morning, along with 8 to 15ft southerly seas developing south of Cape Fairweather by the evening of the 27th. The highest of these significant heights will be felt south of Cape Decision, most concern for mariners transiting northwest from Dixon Entrance along the west coast of Prince of Wales. Seas become a fresh southwest swell later Sunday, with significant heights diminishing into Monday.

Total precipitation amounts still continue to look minor for the south, and very light for the northern and central regions. While we will see widespread light rain develop south of Frederick, total amounts still are expected to come in under 1 inch. Our fantastic COOP sites in the south are reporting near 3 to 3.9 inches of rain through the month of April, with a normal amount close to 10 to 11 inches for Ketchikan airport. With no strong atmospheric rivers on the horizon, we will finish the month well under normal. In the north near Icy Strait expect some light rain Saturday… a minor inconvenience at best. Totals look to be under 0.5 inches.

LONG TERM
/Sunday through Tuesday night/...A triple point low will have developed over the eastern Gulf of Alaska and on an existing frontal boundary by Sunday. The small craft intensity surface winds circulating about this low will have already peaked by that time and precipitation associated with the front will be focused primarily over the southern half of the Panhandle with rain likely as far north as Tenakee Springs and Angoon. The low itself will pinwheel over the southeastern Gulf before ejecting southeast and out of the forecast area late Sunday night or early Monday. As this happens, shower activity will diminish from north to South, leaving scattered to isolated shower activity through Monday night and a high probability of dry weather and diminishing cloud cover for Tuesday. The pressure gradient over the inner channels will be quite weak, so winds will be minimal once the low tracks off to the southeast. Daytime highs ranging from the upper 50s to lower 60s, but overnight lows are still getting down close to or slightly below freezing.

AVIATION
Widespread VFR conditions for the panhandle through the day Friday with little to no cloud cover aside from a marine layer that developed and has since moved offshore. Southern half of the panhandle will see cloud cover return late Friday night into Saturday along with showers. Potential for marine layer to affect NE gulf coast overnight, but likely overshadowed by higher clouds moving up from the south. With approaching system, winds will switch to be southerly. No LLWS expected during TAF period, though watching potential for some late Saturday into Sunday for the southern panhandle.

MARINE
Friday afternoon buoys 82,83, and 84 are reporting 3 to 4 ft southwesterly swell at 8 to 13 seconds. Overnight expect winds to start to increase from the south and east as a low moves in, with 25 to 30 knot winds lifting into the southern waters Saturday.
South of Cross Sound and Frederick Strait, expect 8 to 15 ft developing seas, with the highest significant heights south of Cape Decision and west coast of Prince of Wales.

Seas become a fresh southwest swell Sunday, with significant heights diminishing through Monday.



AJK WATCHES/WARNINGS/ADVISORIES
PUBLIC...None.
MARINE...Small Craft Advisory for PKZ035-036-641-642-661>663.

Composite Island
Click for Map
Fri -- 12:08 AM AKDT     Moonrise
Fri -- 03:15 AM AKDT     17.30 feet High Tide
Fri -- 05:20 AM AKDT     Sunrise
Fri -- 05:32 AM AKDT     Moonset
Fri -- 09:58 AM AKDT     -1.48 feet Low Tide
Fri -- 04:13 PM AKDT     14.70 feet High Tide
Fri -- 08:48 PM AKDT     Sunset
Fri -- 09:59 PM AKDT     3.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Composite Island, Glacier Bay, Alaska, Tide feet

Muir Inlet
Click for Map
Fri -- 12:07 AM AKDT     Moonrise
Fri -- 03:16 AM AKDT     17.30 feet High Tide
Fri -- 05:18 AM AKDT     Sunrise
Fri -- 05:30 AM AKDT     Moonset
Fri -- 10:00 AM AKDT     -1.48 feet Low Tide
Fri -- 04:14 PM AKDT     14.70 feet High Tide
Fri -- 08:47 PM AKDT     Sunset
Fri -- 10:01 PM AKDT     3.41 feet Low Tide
Tide / Current data from XTide NOT FOR NAVIGATION

Muir Inlet, Glacier Bay, Alaska, Tide feet

Full Color Weather Map

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