Sunrise 5:32 AM   Sunset 8:20 PM Moonrise 2:10 PM   Moonset 4:55 AM

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PKZ035 Sumner Strait- 402 Am Akdt Thu Apr 18 2024
Today - NE wind 10 kt. Seas 2 ft or less, except 5 ft near ocean entrances. Tonight - NE wind 10 kt becoming E late. Seas 3 ft. Fri - E wind 20 kt diminishing to 15 kt in the afternoon. Gusts to 35 kt in the morning. Seas 4 ft. Fri night - E wind 10 kt. Seas 3 ft. Sat - SE wind 10 kt. Seas 3 ft. Sun - S wind 15 kt. Seas 3 ft. Mon - NE wind 10 kt. Seas 2 ft or less.

PKZ005
No data

FXAK67 PAJK 181337 AFDAJK

Southeast Alaska Forecast Discussion National Weather Service Juneau AK 537 AM AKDT Thu Apr 18 2024

SHORT TERM
Another day of quiet weather for the entirety of southeast Alaska as a blocking ridge persists in the gulf, deflecting any moisture to the west. While near gale force winds can be seen in the central gulf along a stalled frontal boundary, winds across the panhandle remain relatively light with some breezy outflow winds out of E and NE interior passes. With clear skies prevailing, radiational cooling will allow for temperatures to range from the mid to upper 50s in the afternoon but drop into the 30s overnight. Minimal changes to inherited forecast aside from adjusting for current conditions.

LONG TERM
/Friday through Wednesday/...The end of the week brings about an end to the dry and warm weather for SE AK as the gulf high pressure ridge shifts east. A trough from 500 mb low over the Western AK Gulf extends over the SE Gulf then rotates over the Panhandle from S to N Saturday night into Sunday. At the surface the stalled front that was over the Western Gulf moves east then pushes over the Panhandle. Cloud cover increases and temps return to seasonable normals with a narrower diurnal range.
The front will shear apart as it loses upper level support so not expecting much in the way of rainfall amounts. Operational models have fair amount of spread on if this front will produce any precip but ensembles have been consistent keeping in some light precip. As the front rides over the ridge another short break in precip occurs Monday as another low moves in from the west.
Northerly winds diminish as pressure gradient weakens with a directional shift occurring through Saturday into Sunday. Active weather continues into next week. More spread in operational model solutions due to the break down of the ridge but ensembles keep a broad low in place with precip for most of the time, so overall lower confidence in forecast details next week

AVIATION
/ Through Thursday night / No aviation hazards expected due to clear skies and dry weather persisting through tonight. Winds to stay light less than 15 kt, except for a few local areas of 20 kt. Afternoon seabreezes anticipated to impact some airports.

MARINE
High pressure over the region will stall an advancing front over the gulf. Strong to near gale southeasterly winds will persist over the central gulf through the week before high pressure moves E of the region. Over the inner channels, generally light to gentle winds prevail with moderate to fresh NE to E outflow winds out of Taku Inlet, back side of Douglas Island and S Lynn through Cross Sound.

AJK WATCHES/WARNINGS/ADVISORIES
PUBLIC...None.
MARINE...Small Craft Advisory for PKZ022-053-642>644-651-652-661>664-671- 672.

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