textproduct: Juneau

SYNOPSIS

Key Messages:

- Seasonable temperatures continue across the panhandle with highs in the in upper 50s to low 60s.

- A return to a more active weather pattern with multiple fronts pushing through southeast Alaska early this week.

- Stronger front brings widespread moderate to heavy rain and some wind for Tuesday.

LONG TERM

/ Wednesday through Sunday / The weather front continues to continues to move east-Southeast then into the Canadian coastal waters Wednesday morning. Onshore flow will have showers, but there will be improving conditions Thursday as a ridge builds and brings a couple day break in the weather to weekend. Temperatures for a fair portion of the area warming to the 60s and possibly to near 70 degrees.

As the weekend progresses the ridge flattens headed to Sunday, and may see some weather start possible sweep into the zonal flow beginning to set up but has not yet reached the panhandle.

AVIATION

A series of fronts are currently working their way into the region, with the first weaker system expected to push through the Panhandle Monday. Anticipate MVFR -RA along the coast to continue to diminish this afternoon to IFR, with MVFR -RA becoming prevalent across much of the inside. CIGS of 800ft to 2000ft are the primary threat, with -RA diminishing VSBY 3SM to 5SM.

Tuesday morning a much stronger band of rain arrives along the northern coast, spreading east into the Panhandle by Tuesday afternoon. This system will be responsible for driving strong surface winds, primarily focused in the central and northern Panhandle.

MARINE

Gulf Waters: A majority of the eastern gulf has seen wind directions shift to more of a southerly direction overnight as a new front moves into the area. As of 4 am only areas E of 135W are still westerly and those areas should flip to the south as well by afternoon. In the meantime the southerly winds will be increasing to around 20 kt today (with a small area of 25 kt near Cape Suckling). There will be a brief lull in winds speeds Monday night before the next stronger front moves in from the W on Tuesday. This front will bring more widespread S winds to 25 to 30 kt which will last into Tuesday night while switching to a more Westerly direction. Seas are rather low (6 ft or less) across most of the eastern gulf, but they are starting to build in the central gulf. Expect a steady building trend up to 9 to 12 ft by Tuesday night from a combination of higher winds building wind wave, and an increased W swell up to 5 to 6 ft through Wednesday.

Inner Channels: The inner channels are mostly quiet currently with light winds and low seas. This will not last as two fronts move through the area through Tuesday night. The first front on Monday night will increase winds, but not by much and will mainly affect the northern channels. S winds will likely increase to around 10 to 20 kt and seas building to 3 to 5 ft Monday night with the highest winds and seas in Lynn Canal. There will not be a break before the next stronger front moves in on Tuesday and winds (especially across the north) will just get stronger. The inner channels from Frederick Sound northward will likely see winds increase to around 25 kt with seas building to around 5 ft by Tuesday afternoon. Again the highest winds and seas will be in Lynn Canal where min gale force southerly winds are expected Tuesday afternoon into Tuesday evening. Expect winds and seas to start diminishing late Tuesday night into Wednesday as the front moves out of the area.

AJK WATCHES/WARNINGS/ADVISORIES

PUBLIC...None. MARINE...Small Craft Advisory for PKZ012-652-663-664-671-672.