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 to include the 06Z TAF issuance
Minor updates to the forecast this evening. The low has jumped ashore this evening north of Sitka and is rapidly filling in. Winds are diminishing as a result, although they are remaining a bit gusty for PASI and up through Stephens Passage and southern Lynn Canal. Winds will continue to lower through the night as the low weakens. Rain and snow showers will persist across the north through the night into Friday morning before diminishing through the afternoon hours.
MARINE
Outside (Gulf and Coastal Waters): Thursday afternoon observations highlighted storm force conditions along our coast, with the highest winds focused near Cape Ommaney. Given satellite wind passes, able to narrow down the 35 ft seas, likely aimed toward Chatham and Sumner ocean entrances. Along the northern coast, buoy observations from 46082 and 46083 reported significant wave heights near 10 to 12 ft. However, one item of note was prominent WSW swell at 14 to 16 seconds, masked by the fresh seas generated from the strong low. Moving into early Friday morning wind and seas begin to diminish along our coast. Next system will be a low that will take a southeast transit along our coast Saturday night, bringing gale force northwest winds to the central gulf and fresh seas increasing. Mariners wishing to transit from Cross Sound to Cape St. Elias will see winds less than 30 knots and seas less than 12 ft if they favor the coast.
Inside (Inner Channels): Thursday afternoon high winds are shifting east into the Panhandle, driving gale to storm force for most of the central and southern passages. Stephens Passage looks particularly intense, with a few hours of storm force conditions through the evening. Moving through Thursday night, wind and seas begin to subside, bringing light winds Friday. As these winds decrease Friday, dense fog is becoming more likely Friday night into Saturday morning. Sunday an extended period of outflow conditions begins, with gale force conditions ebbing and flowing through the coming week.
AJK WATCHES/WARNINGS/ADVISORIES
PUBLIC...None. MARINE...Gale Warning for PKZ031. Small Craft Advisory for PKZ013-022-033-034-053-641>644-651-652- 661>664-671-672.
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