681
FXAK67 PAJK 282320
AFDAJK

Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
320 PM AKDT Sun Apr 28 2024

.SHORT TERM...Settling weather for the short term with a system,
currently visible on satellite, is now drifting southward with
less of an influence on weather in SE AK. Modest vorticity
advection through tonight will cause the occasional shower for the
northern panhandle, and cloud cover over the northern half of the
AOR. Some clearing in the southern panhandle will encourage some
fog development from higher dew points and lighter winds from the
directional transition. Currently not expecting widespread
development, but patchy is definitely a possibility.

Clearing skies begins tomorrow morning from north to south with a
ridge building in the gulf and aloft. Expect sea breezes in the
usual places, which will bring temperature gradients between
areas along the water and inland areas.

.LONG TERM.../ Tuesday to Friday night / Tuesday and Wednesday
look to non impact weather days, with a ridge of high pressure
moving through the eastern gulf and panhandle leaving an area of
high pressure near the north central gulf coast by Wednesday. A
low pressure system undercuts the gulf coast area to Southern
Haida Gwaii by Wednesday night.

A larger low moves from the Aleutians into the northern gulf and
the front extends southeast. This front looks like it may be
stalled out over the gulf just off the panhandle or just spread
into the panhandle early Saturday.

&&

.AVIATION...Mostly VFR overnight with some rain showers moving
across the Panhandle. Under any heavier show, likely see MVFR.
Will have to watch the potential for some fog development as skies
clear aloft early Monday morning, higher confidence around around
Klawock and Yakutat.

&&

.MARINE...Outside of Lynn Canal, variable to mostly southerly
winds will calm and transition to northerly for the inside waters through
tonight. The gradual transition will help seas subside before the
transition to a mainly northerly component to winds. As a ridge
builds in the gulf on Monday, a westerly component to winds will
gradually take hold, further increasing from clearing skies. East
west facing channels such as Icy Strait will likely have enhanced
winds up to 15-20 knots during the daytime period. Fortunately,
swell in the gulf will be mainly southwesterly, same as incoming
winds into the inner channels, which will limiting seas.

Low level warm air advection aloft moving southeast along the
eastern gulf coast tomorrow morning will bring some enhanced winds
to these areas through Monday. Expect the area of maximum winds
to move from north to south through Monday and Monday night.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Small Craft Advisory for PKZ641>643-661>664-671.

&&

$$

SHORT TERM...NC
LONG TERM....Bezenek
AVIATION...AP

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