726 FXAK67 PAJK 310546 AAA AFDAJK Southeast Alaska Forecast Discussion...UPDATED National Weather Service Juneau AK 846 PM AKST Tue Dec 30 2025 .UPDATE...Aviation section updated for 6z taf issuance. && SYNOPSIS... Key Messages: - Winter storm continues in Northern Southeast Alaska with multiple rounds of snow through early Wednesday. - Arctic Boundary is around Angoon and Pelican, so places south of that like Sitka to Kake to Petersburg and south are in the 40s. - Localized flooding from streams over the southern panhandle. - Offshore flow with break in snowfall looks to come for the panhandle into the end of the week through the early weekend. SHORT TERM.../ through Thursday / Multi center low pressure system over the central will continue to spin bands of showers into the panhandle. One exited early Tuesday and one is expect Tuesday afternoon and evening. Yet another band of showers should lift into the northern portion of the band late tonight to Wednesday morning. Shower activity will be lessening on Wednesday and should be tapering off early Thursday for much of Southeast Alaska. Between the heavier showers and first part of the overnight freezing rain pockets possible. Rains across the southern panhandle has settled down, and it is only the running off leaking into the rivers or localized Flood advisories earlier, and just the one for Ward Lake Recreational area below Lake Connell Dam. Showers for the south are not expected to be extensive. LONG TERM...End of the week into the start of the weekend is generally on a cooler and drier trend, with diminishing chances for snowfall. Going into the end of the week, an upper level trough moving eastward will sit over the panhandle, blocking off some of the moisture from moving in despite the low lingering in the northern Gulf, and allowing for arctic air to be brought down into the panhandle. The setup will change to more of an outflow pattern as northerly winds last into the weekend, and cooler and drier air is brought down into the panhandle from the Yukon. Temperatures will steadily decrease across the panhandle Wednesday through Saturday, however the weaker outflow setup will not allow for quite as cold conditions as we have seen earlier this month, with minimum temperatures staying largely above 10-15 degrees with the exception of the far northern panhandle seeing colder conditions. Temperatures will decrease to the low to to mid 30s for the southern panhandle and central outer coastline by the end of the week, to the low to mid 20s for the central panhandle, and to the mid teens to less than 10 degrees for the far northern panhandle by Friday. These colder temperatures and drops in snow level will last into the weekend before the next system moves into the Gulf, with warmer temperatures and moisture returning to the panhandle by Monday as this next system brings in the next round of snowfall. Overall during this period, precipitation chances will drop across the panhandle as the moisture is cut off, with only some slight chances during the end of the week. The highest chances remain along the northern Gulf coast and the far southern panhandle, though some weak showers may move through the panhandle from the low weakening in the northern Gulf. Any precipitation that happens will remain largely light and short lasting showers, due to the lack of moisture and weakened dynamic setup. Either way this period of time is expected to be a break in the snowy weather, with the majority of the panhandle expecting to see drier and even potentially sunny conditions as skies clear with the offshore flow that sets up by the end of the week. AVIATION... Waves of precipitation are moving across the panhandle this evening. The heaviest band has just cleared the northern panhandle on it way into Canada as of 8pm this evening. Various weaker shortwaves are still expected to move through the area through Wed with the strongest of these coming in after midnight tonight. expect areas of IFR or lower north of Angoon and Sitka due to the precip being mostly snow. While areas from Angoon and Sitka southward will mainly be VFR to MVFR due to the precip being more rain. Into Wed night a diminishing trend is still expected for the showers with MVFR and VFR conditions starting to become more dominate. Winds have shown a noticeable diminishing trend this evening with winds in both the southern and northern panhandle diminishing. Of note is Skagway where winds diminished to 20kt gusting to 30 kt as of 8pm which has markedly cut down on the blowing snow and drastically increased ceilings and visibility there (up to 5000 ft and 4 miles respectively). Winds there are not expected to get as high as they were earlier in the evening again so while there may still be some periods of IFR due to falling snow and light blowing snow. The near whiteout conditions from earlier are not expected to be repeated through Wednesday night. MARINE...Inside (Inner Channels): A frontal boundary is splitting the panhandle and bringing two regimes. Across southern Chatham, Sumner and Clarence Straits, fresh to near gale southerly winds persist. North of the boundary, a fresh to strong outflow pattern is prevalent. Waters near Point Couverden experiencing winds around 50 kt with higher gusts. The boundary lifts north through the day and into tonight, with a shift in winds to the south expected north Stephens Passage and northern Chatham. Outside (Gulf and Coastal Waters): A low out in the northern Gulf will persist through midweek, bringing fresh to strong breezes. 12-16 ft waves are expected to continue with the predominant swell direction remaining out of the south and west. Winds and seas diminish through the latter half of the week as the low weakens. && .AJK WATCHES/WARNINGS/ADVISORIES... PUBLIC...Winter Storm Warning until noon AKST Wednesday for AKZ318>320- 325. Winter Weather Advisory until 6 AM AKST Wednesday for AKZ321-322. MARINE...Small Craft Advisory for PKZ012-013-022-031-034-036-053-641>644- 651-652-661>664-671-672. && $$ SHORT TERM...Bezenek LONG TERM...Contino AVIATION...EAL MARINE...Bezenek Visit us at http://www.weather.gov/Juneau