Marine Weather and Tide Forecast for Angoon, AK

FXAK67 PAJK 100609 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 1009 PM AKDT Thu Apr 9 2026

UPDATE
update for the 06Z TAF issuance...Only minor edits to the forecast this evening. Rain continues across most of the panhandle tonight, clearing and ending at Yakutat and then over towards Haines and Skagway overnight as the front shifts south.
With the clearing, fog could develop at these locations.
Additionally, fog and/or low stratus could develop along the Icy Strait corridor, Juneau and on down towards Petersburg with the saturated boundary layer and light winds.

SYNOPSIS

Key Messages:

- Light rain will continue through Thursday night, ending from north to south on Friday. Rain could mix with snow across the north at times through Thursday night.

- Increasing forecast confidence of drier and warmer conditions for the weekend.

SHORT TERM
Rain continues through Thursday night as a narrow trough and its corresponding occluded front slowly moves south.
Given the lack of a strong moisture plume with this front, expected rainfall totals will not be all that impressive, with 0.5 to 1 inch of liquid expected to fall. As the front slowly moves south, think that fog could develop in its wake across Yakutat and parts of the northern panhandle. As the front departs tomorrow, skies begin to clear behind it. Some lingering cloud cover is expected, and chances of showers will linger through the day on Friday for the southern panhandle. A weak northerly outflow event, driven by the pressure gradient in the wake of the system, will begin on Friday, with N winds reaching fresh to strong breeze in many of the N/S inner channels, although these winds may briefly weaken late Friday afternoon as a sea breeze attempts to set up.
By Friday night, the system will have fully departed SE AK, setting the stage for a dry start to the weekend on Saturday as SE AK comes under the eastern flank of a ridge, though some lingering cloud cover cannot be ruled out.

LONG TERM
Dry weather and clearer skies expected Saturday as ridging sets up to the west over the Gulf, and with the low to the SE will allow for offshore flow. The N 15 and 25 kt winds are expected down Lynn Canal, Stephens Passage, and Chatham Strait overnight into the morning Saturday, with up to 30 kt winds possible down Lynn Canal. The gradually weakening pressure gradient along with the diurnal heating combating the offshore flow moving into the daytime will limit some of this northerly flow into the afternoon and evening hours on Saturday. The clearer skies will enable warmer temperatures during the daytime Saturday across the panhandle, as well as allow for some cooler nighttime temperatures Saturday night, and bring potential for sea breezes in some areas during the day. Winds across the panhandle will diminish to light and variable overnight into Sunday morning, picking up again into Sunday night as the next system approaches.

The ridging offshore will begin to break down into Sunday as the next system approaches from the NW Gulf. This system shows higher confidence today at being colder aloft, with -7 to -9 C temperatures at 850 mb and a cold low center at 500 mb, but still the warmer temperatures at the surface keep some uncertainty on precipitation in the forecast at this time for Monday night. Still expecting this to be a more convective system due to the colder temperatures aloft and warmer sea surface temps, bringing more showery precipitation. This will move into the NE coast during the day Sunday before pushing E across the rest of the panhandle overnight through Monday. A rain / snow mix is expected in the overnight hours for the N panhandle, becoming rain by morning. The rest of the panhandle will see rain as the system moves through later that morning through the day Monday.

Some mixing potential returns to the panhandle into Monday evening and the overnight hours as snow levels drop and temperatures aloft decrease, though precipitation chances will gradually diminish into Monday night from W to E as well. Any mixed precipitation is not expected to accumulate much at all, especially as daytime temperatures remain in the high 30s to low 40s Monday. Expecting around a trace of snowfall for the northern panhandle Sunday through Monday night, with sea level locations staying below 0.5 inches for snowfall. Majority of the QPF for this system is expected to impact the NE Gulf coastline, between 0.6 to 0.8 inches of QPF for Yakutat, largely falling as rain aside from during the overnight hours.

AVIATION
/through Friday evening/...Most of SE AK will continue to see MVFR to IFR VIS and CIGs through Friday morning, with rain being the main culprit across central/southern panhandle and fog for PAYA and northern panhandle. Lighter winds and saturated boundary layer could lead to fog and/or low stratus development at PAPG, PAWG, and the Icy Strait corridor, with LIFR flight conditions possibly developing. A drying and clearing trend expected from north to south Friday morning and the afternoon, with VFR flight conditions developing across the north and for PASI, with MVFR flight conditions lingering across the southern TAF sites. Slightly elevated winds 10-15kt Friday for PAHN and PAGY. Otherwise, winds generally less than 10kt through the period.

MARINE
Outside (Gulf and coastal waters): Sustained winds across the eastern gulf remain below 25 knots and seas less than 10ft.
Directions vary through Thursday night, but across Cape St. Elias we see easterly gentle to moderate breezes. Waveheights of 4 to 6 ft will remain the norm across the outer coast, with 6 to 8 ft closer to the central gulf. Winds will begin to strengthen again on the backside of this low Friday, with northwesterly winds increasing to moderate to fresh breezes along the majority of our coast, especially along the westerly coast of Baranof and Prince of Wales, driving short period fresh seas from the northwest. Wave periods are around 10-13 seconds,

Inside (Inner channels): Winds of gentle to fresh breezes continue to impact the inside Thursday afternoon, as southerly flow continues in the vicinity of a front moving through, while northerly flow begins in its wake.
Winds will decrease across the inner channels Thursday night as the pressure gradient weakens before northerly flow begins to take hold on Friday. The northerly flow will quickly build across Lynn, Chatham, and Stephens Friday, with high confidence in speeds reaching fresh to strong breezes. For Lynn, we will likely see sustained strong breeze conditions. Freezing spray concerns are limited given warmer air temperatures. The northerly flow will weaken through Sunday, before becoming southerly as a low crosses the Gulf and approaches the panhandle.
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