Marine Weather and Tide Forecast for Angoon, AK

FXAK67 PAJK 211255 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 455 AM AKDT Sat Jun 21 2025

SHORT TERM
No changes in message to the ongoing forecast for the next 24 hours over the land areas. Satellite shows the marine layer off the coast slowly working its way inland into Icy Strait to right about Gustavus with some minor patchy fog around the Klawock area. Expecting these clouds to retreat promptly in the next few hours as the sun rises properly. Similar to yesterday, warm temperatures of 70 to 80 degrees in the panhandle, with the emphasis on the Haines area for that upper limit. A heat advisory is still in effect for the Haines Highway area by Klukwan, with no change in duration or high temperature. With 850 temperatures hovering between 12-14 degrees C, up to 80 degrees at the surface is appropriate. For marine changes, see the marine section.

LONG TERM
Key messages:

- At the start of the week, wind speeds in marine areas will increase during the afternoon hours as sea breezes kick in. Speeds will decrease in the evenings.

- The ridge breaks down at the start of the week as a weak upper level low makes its way over the northern gulf.

- Precipitation chances return, but rain stays light with low QPF.
At the same time, overcast cloud cover returns with slightly cooler temperatures.

Details: Sunday will remain sunny and dry as a ridge of high pressure stays over the gulf. This means clearer skies with warmer temperatures. These temperatures are also evident at 850 mb where temperatures are 10 to 15 degrees C, which builds confidence of maximum temperatures in the 70s.

A pattern change occurs at the start of the week as an upper level low and trough push the ridge away from the panhandle. This will increase cloud cover which will in turn bring maximum temperatures back down to the mid 60s. Along with increased cloud cover, a short wave will bring precipitation chances back to the panhandle late Monday into Tuesday. For the start of the week, QPF totals remain very low with only light precipitation expected. These rain chances continue and slightly increase mid to late week as a more structured system moves into the panhandle. Although chances increase, no significant rain totals or impacts are expected at this time. The most rain is expected Friday in the northern part of the panhandle.

For winds, most of the panhandle remains light except for sea breezes on Sunday and Monday, that will increase winds for marine waters in the afternoon and decrease in the evening. These sea breezes will be around 15 to 20 kts and continue into the start of the week before cloud cover takes over. The main areas where sea breezes will be present are Lynn Canal and Stephens Passage.
Otherwise, winds along the coast will increase Sunday into Monday morning to 15 to 20 kts as the trough pushes the ridge toward the panhandle. This will slightly increase the pressure gradient until the ridge weakens and moves past the panhandle.
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