textproduct: Juneau

This forecast discussion was created in the public domain by the National Weather Service. It can be found in its original form here.

UPDATE...Update for the 18Z TAF issuance

Only minor edits to the forecast this morning with mostly clear conditions dominating. Across the north, expect increasing outflow winds today with strong gusts developing for Skagway and downtown Juneau and wind advisories have been issued. Farther south, look for increasing clouds and a chance for light snow late tonight into Wednesday.

MARINE

Inside (Inner Channels): Split regime ongoing across the inner channels as a low pulls westward away from Baranof Island. Along and south of Sumer Strait, winds are generally SE-ly near 10 to 15kts. Northward towards Lynn Canal, N winds have increased overnight as outflow conditions have begun with Eldred Rock already increasing to 25kts, only increasing further into Tuesday afternoon. Outflow conditions will become predominate through Tuesday, with wave heights building through the day up to 5 to 7 feet within N/S oriented channels by Wednesday morning. As these outflow conditions continue through the week, expecting freezing spray threat to increase as far south as Rocky Island and Taku Inlet. Freezing spray should start off light through the morning, increasing overnight Tuesday into Wednesday with potential for isolated areas of heavy freezing spray within Lynn Canal by Wednesday afternoon.

Outside (Gulf and Coastal Waters): A weakening low is currently located of the coast of Baranof Island this morning, approximately 56N 139W with satellite derived winds around this low around 20 to 30kts. Wave heights around this low near 7 to 10ft, diminishing through the afternoon, this low will continue to slide SW towards the N PAC and weakening. Outflow conditions become predominate by the late afternoon along the N Gulf, increasing through the gaps in terrain up to Gale force with Storm Force gusts, especially along the NE Gulf coast near Dangerous River Valley, Alsek River Valley and out of Yakutat Bay. Wave heights should remain around 5 to 8 ft, however in outflow prone areas will reach upwards of 11 to 12ft through Tuesday evening. Like a broken record, these outflow winds will continue through the week, with potential for moderate to heavy freezing spray Wednesday out of interior passes.

AJK WATCHES/WARNINGS/ADVISORIES

PUBLIC...Wind Advisory from 10 PM this evening to 4 PM AKDT Wednesday for AKZ318. Wind Advisory from 4 PM this afternoon to 10 AM AKDT Wednesday for AKZ325. MARINE...Gale Warning for PKZ012-013-053-643-644-651-663-664-671. Small Craft Advisory for PKZ011-021-022-031>033-035-642-662-672.


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