Alert archive / Alaska / Small Craft Advisories in 2021

Small Craft Advisory 230, NWS Juneau, AK

April 16, 2021

NWS Juneau, AK issued this small craft advisory at Apr 16, 2021, 3:30 PM AKDT. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
Apr 16, 2021, 3:30 PM AKDT (23:30 UTC)
Expired
Apr 18, 2021, 3:50 AM AKDT
In force
36 hr
Issued by
NWS Juneau, AK

The text

As transmitted.

517 
FZAK51 PAJK 162330
CWFAJK

Coastal Waters Forecast for Southeast Alaska
National Weather Service Juneau AK
330 PM AKDT Fri Apr 16 2021

Southeast Alaska Inside Waters from Dixon Entrance to Skagway

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ098-171630-
330 PM AKDT Fri Apr 16 2021
.SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS...
Building high pressure over the interior and Yukon will
establish a strong northerly pressure gradient along the Coast
Mountains through the weekend. The high starts shifting to the 
east on Sunday. 

$$

PKZ011-171630-
Glacier Bay-
330 PM AKDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY SATURDAY...

.TONIGHT...NW wind 10 kt increasing to 20 kt late. Seas building 
to 4 ft. 
.SAT...NW wind 25 kt. Seas 5 ft. 
.SAT NIGHT...NW wind 25 kt. Seas 5 ft. 
.SUN...NW wind 20 kt. Seas 4 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...NW wind 10 kt. Seas 2 ft or less. 

$$

PKZ012-171630-
Northern Lynn Canal-
330 PM AKDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...N wind 15 kt increasing to 30 kt late. Seas 3 ft 
building to 6 ft. 
.SAT...N wind 30 kt. Seas 6 ft. 
.SAT NIGHT...N wind 30 kt. Seas 6 ft. 
.SUN...N wind 25 kt diminishing to 20 kt in the afternoon. Seas 5
ft.
.SUN NIGHT...N wind 25 kt. Seas 5 ft. 
.MON...N wind 20 kt diminishing in the afternoon. Seas 4 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 

$$

PKZ013-171630-
Southern Lynn Canal-
330 PM AKDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY SATURDAY...

.TONIGHT...N wind 10 kt increasing to 20 kt late.. Seas building 
to 4 ft. 
.SAT...N wind 25 kt. Seas 5 ft. 
.SAT NIGHT...N wind 25 kt. Gusts to 40 kt. Seas 5 ft. 
.SUN...N wind 25 kt diminishing to 15 kt in the afternoon. Seas 5
ft subsiding to 3 ft.
.SUN NIGHT...N wind 20 kt diminishing to 10 kt. Seas 4 ft. 
.MON...N wind 20 kt. Seas 4 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ021-171630-
Icy Strait-
330 PM AKDT Fri Apr 16 2021

.TONIGHT...NW wind 10 kt. West of Point Adolphus, NE wind
increasing to 15 kt. Seas building to 3 ft.
.SAT...NW wind 15 kt. West of Point Adolphus, NE wind increasing 
to 20 kt. Seas building to 4 ft. 
.SAT NIGHT...NE wind 20 kt. Seas 4 ft. 
.SUN...NE wind 20 kt. Seas 4 ft. 
.SUN NIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...W wind 20 kt. Seas 4 ft. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...E wind 10 kt. Seas 2 ft or less. 

$$

PKZ022-171630-
Cross Sound-
330 PM AKDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY SATURDAY...

.TONIGHT...NE wind 15 kt. Seas 5 ft. 
.SAT...E wind 25 kt. Seas 5 ft. 
.SAT NIGHT...E wind 25 kt. Seas 6 ft. 
.SUN...E wind 25 kt. Seas 5 ft. 
.SUN NIGHT...E wind 25 kt. Seas 5 ft. 
.MON...E wind 25 kt diminishing to 10 kt. Seas 9 ft. 
.TUE...W wind 15 kt. Seas 9 ft. 
.WED...NE wind 15 kt. Seas 6 ft. 

$$

PKZ031-171630-
Stephens Passage-
330 PM AKDT Fri Apr 16 2021

...SMALL CRAFT ADVISORY SATURDAY...

.TONIGHT...N wind 10 kt increasing to 20 kt late. Seas building 
to 4 ft. 
.SAT...N wind 20 kt increasing to 25 kt in the afternoon. Higher
gusts out of Taku Inlet. Seas 5 ft. 
.SAT NIGHT...N wind 25 kt. Strongest winds out of Taku Inlet. 
Seas 5 ft.
.SUN...N wind 20 kt. Seas 4 ft. 
.SUN NIGHT...N wind 20 kt. Seas 4 ft. 
.MON...N wind 20 kt diminishing to 10 kt. Seas 4 ft. 
.TUE...Variable wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ032-171630-
Northern Chatham Strait-
330 PM AKDT Fri Apr 16 2021

.TONIGHT...N wind increasing to 15 kt in the evening. Seas 
building to 3 ft.
.SAT...N wind 20 kt. Seas 4 ft. 
.SAT NIGHT...N wind 20 kt. Seas 4 ft. 
.SUN...N wind 20 kt diminishing to 15 kt. Seas 4 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ033-171630-
Southern Chatham Strait-
330 PM AKDT Fri Apr 16 2021

.TONIGHT...N wind increasing to 20 kt late. Seas 4 ft. 
.SAT...N wind 20 kt. Seas 4 ft. 
.SAT NIGHT...N wind 20 kt. Seas 4 ft. 
.SUN...NE wind 25 kt. Seas 5 ft. 
.SUN NIGHT...N wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 15 kt. Seas 3 ft. 
.WED...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ034-171630-
Frederick Sound-
330 PM AKDT Fri Apr 16 2021

.TONIGHT...N wind 10 kt. Seas 2 ft or less. 
.SAT...N wind 15 kt. Higher gusts out of interior passes in the
afternoon. Seas 3 ft.
.SAT NIGHT...NE wind 20 kt diminishing late. Seas 4 ft. 
.SUN...NE wind 15 kt. Higher gusts out of interior passes. Seas 3
ft.
.SUN NIGHT...NE wind 20 kt. Seas 4 ft. 
.MON...NE wind 20 kt diminishing in the afternoon. Seas 4 ft. 
.TUE...E wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ035-171630-
Sumner Strait-
330 PM AKDT Fri Apr 16 2021

.TONIGHT...NW wind 10 kt becoming NE 15 kt late. Seas building to
3 ft.
.SAT...NE wind 15 kt. Seas 3 ft. 
.SAT NIGHT...NE wind 20 kt. Gusts to 40 kt out of interior 
passes. Seas 4 ft. 
.SUN...NE wind 20 kt. Gusts to 35 kt. Seas 4 ft. 
.SUN NIGHT...NE wind 20 kt. Gusts to 40 kt out of interior 
passes. Seas 4 ft. 
.MON...E wind 15 kt. Seas 3 ft. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ036-171630-
Clarence Strait-
330 PM AKDT Fri Apr 16 2021

.TONIGHT...NW wind 10 kt. Seas 2 ft or less. 
.SAT...N wind 10 kt. Seas 2 ft or less. 
.SAT NIGHT...N wind 15 kt. Strongest winds out of interior 
passes. Seas 3 ft.
.SUN...N wind 15 kt. Strongest winds out of interior 
passes. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt becoming SE. Strongest winds out of 
interior passes. Seas 3 ft. 
.MON...NE wind 15 kt becoming SE. Seas 3 ft. 
.TUE...NW wind 15 kt. Seas 3 ft. 
.WED...NW wind 10 kt. Seas 2 ft or less. 

$$
5 follow-up statements
177 
FZAK51 PAJK 171157
CWFAJK

Coastal Waters Forecast for Southeast Alaska
National Weather Service Juneau AK
357 AM AKDT Sat Apr 17 2021

Southeast Alaska Inside Waters from Dixon Entrance to Skagway

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ098-180230-
357 AM AKDT Sat Apr 17 2021
.SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS...
High pressure over the interior and Yukon will  generate a
strong northerly pressure gradient along the Coast  Mountains
through the weekend. The high will slowly start  shifting to the
east on Sunday.  

$$

PKZ011-180230-
Glacier Bay-
357 AM AKDT Sat Apr 17 2021

.TODAY...NW wind 20 kt. Seas 4 ft. 
.TONIGHT...NW wind 20 kt. Seas 4 ft. 
.SUN...NW wind 20 kt. Seas 4 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...NW wind 15 kt. Seas building to 3 ft. 

$$

PKZ012-180230-
Northern Lynn Canal-
357 AM AKDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

.TODAY...N wind 30 kt. Seas 6 ft. 
.TONIGHT...N wind 25 kt. Gusts to 40 kt. Seas 5 ft. 
.SUN...N wind 25 kt. Seas 5 ft. 
.SUN NIGHT...N wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt. Seas 4 ft then 2 ft or less. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 

$$

PKZ013-180230-
Southern Lynn Canal-
357 AM AKDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

.TODAY...N wind 25 kt. Seas building to 5 ft. 
.TONIGHT...N wind 25 kt. Seas 5 ft. 
.SUN...N wind 25 kt diminishing to 15 kt in the afternoon.
Seas 5 ft subsiding to 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...Light winds becoming N 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas building to 3 ft. 

$$

PKZ021-180230-
Icy Strait-
357 AM AKDT Sat Apr 17 2021

.TODAY...NW wind 15 kt. Seas building to 3 ft. 
.TONIGHT...E wind 15 kt. Seas 3 ft. 
.SUN...E wind 15 kt becoming NW in the afternoon. Seas 3 ft. 
.SUN NIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...E wind 15 kt becoming W. Seas 3 ft. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...E wind 10 kt. Seas building to 3 ft. 

$$

PKZ022-180230-
Cross Sound-
357 AM AKDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY THIS EVENING THROUGH LATE TONIGHT...

.TODAY...E wind 20 kt. Seas 5 ft. 
.TONIGHT...E wind 25 kt. Seas 5 ft. 
.SUN...E wind 20 kt. Seas 5 ft. 
.SUN NIGHT...E wind 20 kt. Seas 4 ft. 
.MON...E wind 15 kt becoming W. Seas 6 ft. 
.TUE...W wind 10 kt. Seas 7 ft. 
.WED...NE wind 15 kt. Seas 5 ft. 

$$

PKZ031-180230-
Stephens Passage-
357 AM AKDT Sat Apr 17 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 20 kt. Gusts to 35 kt in the evening. Seas
4 ft. 
.SUN...N wind 20 kt. Seas 4 ft. 
.SUN NIGHT...N wind 20 kt. Gusts to 35 kt out of interior
passes. Seas 4 ft. 
.MON...NE wind 10 kt. Seas 2 ft. 
.TUE...E wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ032-180230-
Northern Chatham Strait-
357 AM AKDT Sat Apr 17 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 15 kt. Seas 3 ft. 
.SUN...N wind 15 kt. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas building to 3 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ033-180230-
Southern Chatham Strait-
357 AM AKDT Sat Apr 17 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 20 kt. Seas 4 ft. 
.SUN...NE wind 20 kt. Seas 4 ft. 
.SUN NIGHT...NE wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 15 kt. Seas building to 3 ft. 
.WED...Light winds becoming N 10 kt. Seas 2 ft or less. 

$$

PKZ034-180230-
Frederick Sound-
357 AM AKDT Sat Apr 17 2021

.TODAY...N wind 15 kt. Seas building to 3 ft in the afternoon. 
.TONIGHT...NE wind 15 kt. Seas 3 ft. 
.SUN...NE wind 15 kt. Seas 3 ft. 
.SUN NIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...NE wind 10 kt. Seas 3 ft. 
.TUE...W wind 10 kt becoming E. Seas 2 ft or less. 
.WED...NE wind 10 kt. Seas 2 ft or less. 

$$

PKZ035-180230-
Sumner Strait-
357 AM AKDT Sat Apr 17 2021

.TODAY...N wind 15 kt. Seas 3 ft. 
.TONIGHT...NE wind 20 kt. Seas 4 ft. 
.SUN...NE wind 20 kt. Gusts to 35 kt in the morning. Seas
4 ft. 
.SUN NIGHT...NE wind 15 kt. Gusts to 40 kt out of interior
passes. Seas 3 ft. 
.MON...SE wind 15 kt. Seas 3 ft. 
.TUE...SE wind 10 kt becoming W. Seas 2 ft or less. 
.WED...NE wind 10 kt. Seas 2 ft or less. 

$$

PKZ036-180230-
Clarence Strait-
357 AM AKDT Sat Apr 17 2021

.TODAY...Light winds becoming N 10 kt. Seas 2 ft or less. 
.TONIGHT...N wind 15 kt. Seas 3 ft. 
.SUN...N wind 15 kt. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt becoming SE. Seas 4 ft. 
.TUE...NW wind 15 kt. Seas 3 ft. 
.WED...NW wind 10 kt. Seas 2 ft or less. 

$$
254 
FZAK51 PAJK 171436 AAA
CWFAJK

Coastal Waters Forecast for Southeast Alaska...UPDATED
National Weather Service Juneau AK
636 AM AKDT Sat Apr 17 2021

Southeast Alaska Inside Waters from Dixon Entrance to Skagway

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ098-180245-
636 AM AKDT Sat Apr 17 2021
.SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS...
High pressure over the interior and Yukon will  generate a
strong northerly pressure gradient along the Coast  Mountains
through the weekend. The high will slowly start  shifting to the
east on Sunday.  

$$

PKZ011-180245-
Glacier Bay-
636 AM AKDT Sat Apr 17 2021

.TODAY...NW wind 20 kt. Seas 4 ft. 
.TONIGHT...NW wind 20 kt. Seas 4 ft. 
.SUN...NW wind 20 kt. Seas 4 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...NW wind 15 kt. Seas building to 3 ft. 



$$

PKZ012-180245-
Northern Lynn Canal-
636 AM AKDT Sat Apr 17 2021

UPDATED

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

.REST OF TODAY...N wind 25 kt. Seas 5 ft. 
.TONIGHT...N wind 25 kt. Gusts to 40 kt. Seas 5 ft. 
.SUN...N wind 25 kt. Seas 5 ft. 
.SUN NIGHT...N wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt. Seas 4 ft then 2 ft or less. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 



$$

PKZ013-180245-
Southern Lynn Canal-
636 AM AKDT Sat Apr 17 2021


...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

.TODAY...N wind 25 kt. Seas building to 5 ft. 
.TONIGHT...N wind 25 kt. Seas 5 ft. 
.SUN...N wind 25 kt diminishing to 15 kt in the afternoon.
Seas 5 ft subsiding to 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...Light winds becoming N 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas building to 3 ft. 



$$

PKZ021-180245-
Icy Strait-
636 AM AKDT Sat Apr 17 2021

.TODAY...NW wind 15 kt. Seas building to 3 ft. 
.TONIGHT...E wind 15 kt. Seas 3 ft. 
.SUN...E wind 15 kt becoming NW in the afternoon. Seas 3 ft. 
.SUN NIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...E wind 15 kt becoming W. Seas 3 ft. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...E wind 10 kt. Seas building to 3 ft. 



$$

PKZ022-180245-
Cross Sound-
636 AM AKDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY THIS EVENING THROUGH LATE TONIGHT...

.TODAY...E wind 20 kt. Seas 5 ft. 
.TONIGHT...E wind 25 kt. Seas 5 ft. 
.SUN...E wind 20 kt. Seas 5 ft. 
.SUN NIGHT...E wind 20 kt. Seas 4 ft. 
.MON...E wind 15 kt becoming W. Seas 6 ft. 
.TUE...W wind 10 kt. Seas 7 ft. 
.WED...NE wind 15 kt. Seas 5 ft. 



$$

PKZ031-180245-
Stephens Passage-
636 AM AKDT Sat Apr 17 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 20 kt. Gusts to 35 kt in the evening. Seas
4 ft. 
.SUN...N wind 20 kt. Seas 4 ft. 
.SUN NIGHT...N wind 20 kt. Gusts to 35 kt out of interior
passes. Seas 4 ft. 
.MON...NE wind 10 kt. Seas 2 ft. 
.TUE...E wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 



$$

PKZ032-180245-
Northern Chatham Strait-
636 AM AKDT Sat Apr 17 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 15 kt. Seas 3 ft. 
.SUN...N wind 15 kt. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas building to 3 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 



$$

PKZ033-180245-
Southern Chatham Strait-
636 AM AKDT Sat Apr 17 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 20 kt. Seas 4 ft. 
.SUN...NE wind 20 kt. Seas 4 ft. 
.SUN NIGHT...NE wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 15 kt. Seas building to 3 ft. 
.WED...Light winds becoming N 10 kt. Seas 2 ft or less. 



$$

PKZ034-180245-
Frederick Sound-
636 AM AKDT Sat Apr 17 2021

.TODAY...N wind 15 kt. Seas building to 3 ft in the afternoon. 
.TONIGHT...NE wind 15 kt. Seas 3 ft. 
.SUN...NE wind 15 kt. Seas 3 ft. 
.SUN NIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...NE wind 10 kt. Seas 3 ft. 
.TUE...W wind 10 kt becoming E. Seas 2 ft or less. 
.WED...NE wind 10 kt. Seas 2 ft or less. 



$$

PKZ035-180245-
Sumner Strait-
636 AM AKDT Sat Apr 17 2021

.TODAY...N wind 15 kt. Seas 3 ft. 
.TONIGHT...NE wind 20 kt. Seas 4 ft. 
.SUN...NE wind 20 kt. Gusts to 35 kt in the morning. Seas
4 ft. 
.SUN NIGHT...NE wind 15 kt. Gusts to 40 kt out of interior
passes. Seas 3 ft. 
.MON...SE wind 15 kt. Seas 3 ft. 
.TUE...SE wind 10 kt becoming W. Seas 2 ft or less. 
.WED...NE wind 10 kt. Seas 2 ft or less. 



$$

PKZ036-180245-
Clarence Strait-
636 AM AKDT Sat Apr 17 2021

.TODAY...Light winds becoming N 10 kt. Seas 2 ft or less. 
.TONIGHT...N wind 15 kt. Seas 3 ft. 
.SUN...N wind 15 kt. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt becoming SE. Seas 4 ft. 
.TUE...NW wind 15 kt. Seas 3 ft. 
.WED...NW wind 10 kt. Seas 2 ft or less. 



$$
089 
FZAK51 PAJK 171615 AAB
CWFAJK

Coastal Waters Forecast for Southeast Alaska...UPDATED
National Weather Service Juneau AK
815 AM AKDT Sat Apr 17 2021

Southeast Alaska Inside Waters from Dixon Entrance to Skagway

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ098-180245-
815 AM AKDT Sat Apr 17 2021
.SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS... High 
pressure over the interior and Yukon will generate a strong 
northerly pressure gradient along the Coast Mountains through the 
weekend. The high will slowly start shifting to the east on Sunday.  

$$

PKZ011-180245-
Glacier Bay-
815 AM AKDT Sat Apr 17 2021

.TODAY...NW wind 20 kt. Seas 4 ft. 
.TONIGHT...NW wind 20 kt. Seas 4 ft. 
.SUN...NW wind 20 kt. Seas 4 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...NW wind 15 kt. Seas building to 3 ft. 



$$

PKZ012-180245-
Northern Lynn Canal-
815 AM AKDT Sat Apr 17 2021

UPDATED

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

.TODAY...N wind 25 kt. Seas 5 ft. 
.TONIGHT...N wind 25 kt. Gusts to 40 kt. Seas 5 ft. 
.SUN...N wind 25 kt diminishing in the afternoon. Seas 5 ft. 
.SUN NIGHT...N wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt. Seas 4 ft then 2 ft or less. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 



$$

PKZ013-180245-
Southern Lynn Canal-
815 AM AKDT Sat Apr 17 2021

UPDATED

...SMALL CRAFT ADVISORY THROUGH LATE TONIGHT...

.TODAY...N wind 25 kt, strongest winds near northern end. Seas 
building to 5 ft. 
.TONIGHT...N wind 25 kt. Seas 5 ft. 
.SUN...N wind 25 kt diminishing to 15 kt in the afternoon.
Seas 5 ft subsiding to 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...Light winds becoming N 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas building to 3 ft. 



$$

PKZ021-180245-
Icy Strait-
815 AM AKDT Sat Apr 17 2021

UPDATED

.TODAY...NW wind 10 kt, except NE 15 kt wind west of Point Adolphus. 
Seas building to 3 ft. 
.TONIGHT...NE wind 15 kt. Seas 3 ft. 
.SUN...E wind 15 kt becoming NW in the afternoon. Seas 3 ft. 
.SUN NIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...E wind 15 kt becoming W. Seas 3 ft. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...E wind 10 kt. Seas building to 3 ft. 



$$

PKZ022-180245-
Cross Sound-
815 AM AKDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY THIS EVENING THROUGH LATE TONIGHT...

.TODAY...E wind 20 kt. Seas 5 ft. 
.TONIGHT...E wind 25 kt. Seas 5 ft. 
.SUN...E wind 20 kt. Seas 5 ft. 
.SUN NIGHT...E wind 20 kt. Seas 4 ft. 
.MON...E wind 15 kt becoming W. Seas 6 ft. 
.TUE...W wind 10 kt. Seas 7 ft. 
.WED...NE wind 15 kt. Seas 5 ft. 



$$

PKZ031-180245-
Stephens Passage-
815 AM AKDT Sat Apr 17 2021

UPDATED

.TODAY...N wind 20 kt. Strongest winds out of Taku Inlet in the 
afternoon. Seas 4 ft. 
.TONIGHT...N wind 20 kt. Gusts to 35 kt in the evening. Seas
4 ft. 
.SUN...N wind 20 kt diminishing in the afternoon. Seas 4 ft. 
.SUN NIGHT...N wind 15 kt. Gusts to 30 kt out of interior passes. 
Seas 3 ft. 
.MON...NE wind 10 kt. Seas 2 ft. 
.TUE...NE wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 



$$

PKZ032-180245-
Northern Chatham Strait-
815 AM AKDT Sat Apr 17 2021

UPDATED

.TODAY...N wind increasing to 20 kt. Seas building to 4 ft. 
.TONIGHT...N wind 15 kt. Seas 3 ft. 
.SUN...N wind 15 kt. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 10 kt. Seas 2 ft or less. 
.TUE...N wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 



$$

PKZ033-180245-
Southern Chatham Strait-
815 AM AKDT Sat Apr 17 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 20 kt. Seas 4 ft. 
.SUN...NE wind 20 kt. Seas 4 ft. 
.SUN NIGHT...NE wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt. Seas 3 ft. 
.TUE...N wind 15 kt. Seas building to 3 ft. 
.WED...Light winds becoming N 10 kt. Seas 2 ft or less. 



$$

PKZ034-180245-
Frederick Sound-
815 AM AKDT Sat Apr 17 2021

.TODAY...N wind 15 kt. Seas building to 3 ft in the afternoon. 
.TONIGHT...NE wind 15 kt. Seas 3 ft. 
.SUN...NE wind 15 kt. Seas 3 ft. 
.SUN NIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...NE wind 10 kt. Seas 3 ft. 
.TUE...W wind 10 kt becoming E. Seas 2 ft or less. 
.WED...NE wind 10 kt. Seas 2 ft or less. 



$$

PKZ035-180245-
Sumner Strait-
815 AM AKDT Sat Apr 17 2021

.TODAY...N wind 15 kt. Seas 3 ft. 
.TONIGHT...NE wind 20 kt. Seas 4 ft. 
.SUN...NE wind 20 kt. Gusts to 35 kt in the morning. Seas
4 ft. 
.SUN NIGHT...NE wind 15 kt. Gusts to 40 kt out of interior
passes. Seas 3 ft. 
.MON...SE wind 15 kt. Seas 3 ft. 
.TUE...SE wind 10 kt becoming W. Seas 2 ft or less. 
.WED...NE wind 10 kt. Seas 2 ft or less. 



$$

PKZ036-180245-
Clarence Strait-
815 AM AKDT Sat Apr 17 2021

.TODAY...Light winds becoming N 10 kt. Seas 2 ft or less. 
.TONIGHT...N wind 15 kt. Seas 3 ft. 
.SUN...N wind 15 kt. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt becoming SE. Seas 4 ft. 
.TUE...NW wind 15 kt. Seas 3 ft. 
.WED...NW wind 10 kt. Seas 2 ft or less. 



$$
265 
FZAK51 PAJK 172332
CWFAJK

Coastal Waters Forecast for Southeast Alaska
National Weather Service Juneau AK
332 PM AKDT Sat Apr 17 2021

Southeast Alaska Inside Waters from Dixon Entrance to Skagway

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ098-181600-
332 PM AKDT Sat Apr 17 2021
.SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS...
High pressure over the interior and Yukon will generate a strong 
northerly pressure gradient along the Coast Mountains through the 
weekend. The high will slowly start shifting to the east on 
Sunday. 

$$

PKZ011-181600-
Glacier Bay-
332 PM AKDT Sat Apr 17 2021

.TONIGHT...N wind 20 kt. Seas 5 ft. 
.SUN...N wind 20 kt diminishing to 10 kt in the afternoon. Seas 4
ft subsiding to 2 ft.
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt in the morning becoming light. Seas 3 ft then
subsiding.
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...SW wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 
.THU...N wind 15 kt. Seas 3 ft. 

$$

PKZ012-181600-
Northern Lynn Canal-
332 PM AKDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...N wind 25 kt. Gusts to 40 kt late. Seas 5 ft. 
.SUN...N wind 25 kt diminishing to 15 kt in the late afternoon. 
Seas 5 ft subsiding to 3 ft. 
.SUN NIGHT...N wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt in the morning becoming light and variable. 
Seas 3 ft then subsiding.
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...S wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 
.THU...N wind 15 kt. Seas 3 ft. 

$$

PKZ013-181600-
Southern Lynn Canal-
332 PM AKDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY MORNING...

.TONIGHT...N wind 25 kt. Seas 5 ft. 
.SUN...N wind 25 kt in the morning diminishing to 15 kt. Seas 5 
ft subsiding to 3 ft. 
.SUN NIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt in the morning becoming light and variable. 
Seas 3 ft then subsiding.
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...S wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 
.THU...N wind 15 kt. Seas 3 ft. 

$$

PKZ021-181600-
Icy Strait-
332 PM AKDT Sat Apr 17 2021

.TONIGHT...NW wind 15 kt becoming NE. West of Point Adolphus, NE
wind 15 kt. Seas 3 ft.
.SUN...NE wind 15 kt becoming NW 10 kt in the afternoon. West of 
Point Adolphus, NE wind 15 kt. Seas 3 ft.
.SUN NIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...E wind 15 kt in the morning becoming light and variable. 
Seas 3 ft then subsiding.
.MON NIGHT...W wind 10 kt. Seas 2 ft or less. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 
.THU...NE wind 15 kt. Seas 3 ft. 

$$

PKZ022-181600-
Cross Sound-
332 PM AKDT Sat Apr 17 2021

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TONIGHT...NE wind increasing to 25 kt in the evening. Seas 5 ft.
.SUN...NE wind 25 kt diminishing to 20 kt in the afternoon. Seas 
5 ft.
.SUN NIGHT...E wind 20 kt. Seas 4 ft. 
.MON...NE wind 15 kt becoming light and variable in the 
afternoon. Seas 5 ft.
.MON NIGHT...SW wind 10 kt. Seas 7 ft. SE swell. 
.TUE...W wind 15 kt. Seas 7 ft. 
.WED...N wind 15 kt. Seas 6 ft. 
.THU...NE wind 15 kt. Seas 6 ft. 

$$

PKZ031-181600-
Stephens Passage-
332 PM AKDT Sat Apr 17 2021

.TONIGHT...N wind 20 kt. Gusts to 35 kt out of Taku Inlet late. 
Seas 4 ft.
.SUN...NW wind 20 kt. Seas 4 ft. 
.SUN NIGHT...N wind 20 kt diminishing late. Gusts to 35 kt out
of interior passes. Seas 4 ft. 
.MON...NE wind 15 kt becoming light and variable in the afternoon.
Seas 3 ft then subsiding. 
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...NW wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 
.THU...N wind 15 kt. Seas 3 ft. 

$$

PKZ032-181600-
Northern Chatham Strait-
332 PM AKDT Sat Apr 17 2021

.TONIGHT...N wind 15 kt. Seas 3 ft. 
.SUN...N wind 15 kt. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt diminishing late. Seas 3 ft. 
.MON...NE wind 10 kt becoming light and variable. Seas 2 ft or 
less.
.MON NIGHT...NW wind 10 kt. Seas 2 ft or less. 
.TUE...NW wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 
.THU...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ033-181600-
Southern Chatham Strait-
332 PM AKDT Sat Apr 17 2021

.TONIGHT...N wind 20 kt. Seas 4 ft. 
.SUN...NE wind 20 kt. Seas 4 ft. 
.SUN NIGHT...NE wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt becoming SW 10 kt in the afternoon. Seas 3 
ft, except 7 ft near ocean entrances. 
.MON NIGHT...NW wind 15 kt. Seas 3 ft, except 8 ft near ocean 
entrances. 
.TUE...NW wind 15 kt. Seas 3 ft. 
.WED...N wind 10 kt. Seas 2 ft or less. 
.THU...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ034-181600-
Frederick Sound-
332 PM AKDT Sat Apr 17 2021

.TONIGHT...N wind 10 kt becoming NE 15 kt. Seas building to 3 ft.
.SUN...NE wind 15 kt. Seas 3 ft. 
.SUN NIGHT...NE wind 15 kt diminishing late. Seas 3 ft. 
.MON...NE wind 15 kt becoming light and variable. Seas 3 ft then
subsiding.
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...NW wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 
.THU...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ035-181600-
Sumner Strait-
332 PM AKDT Sat Apr 17 2021

.TONIGHT...NE wind increasing to 20 kt late. Seas 4 ft. 
.SUN...NE wind 20 kt diminishing to 15 kt in the afternoon. Seas 
4 ft.
.SUN NIGHT...E wind 15 kt. Seas 3 ft. 
.MON...E wind 15 kt becoming light and variable in the afternoon.
Seas 3 ft.
.MON NIGHT...SW wind 10 kt. Seas 2 ft or less, except 5 ft
near ocean entrances. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 
.THU...NE wind 10 kt. Seas 2 ft or less. 

$$

PKZ036-181600-
Clarence Strait-
332 PM AKDT Sat Apr 17 2021

.TONIGHT...N wind increasing to 15 kt late. Strongest winds out of
interior passes. Seas building to 3 ft.
.SUN...N wind 15 kt diminishing in the afternoon. Seas 3 ft. 
.SUN NIGHT...N wind 15 kt. Strongest winds out of
interior passes. Seas 3 ft. 
.MON...Variable wind 10 kt. Seas 2 ft or less. 
.MON NIGHT...NW wind 15 kt. Seas 3 ft. 
.TUE...NW wind 15 kt. Seas 3 ft. 
.WED...NW wind 10 kt. Seas 2 ft or less. 
.THU...N wind 10 kt. Seas 2 ft or less. 

$$
444 
FZAK51 PAJK 181150
CWFAJK

Coastal Waters Forecast for Southeast Alaska
National Weather Service Juneau AK
350 AM AKDT Sun Apr 18 2021

Southeast Alaska Inside Waters from Dixon Entrance to Skagway

Wind forecasts reflect the predominant speed and direction
expected. Sea forecasts represent the average of the highest
one-third of the combined windwave and swell height.

PKZ098-190230-
350 AM AKDT Sun Apr 18 2021
.SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS...
High pressure over the interior and Yukon will  slowly start
shifting to the east on Sunday. A front moves into  the central
gulf on Monday. 

$$

PKZ011-190230-
Glacier Bay-
350 AM AKDT Sun Apr 18 2021

.TODAY...NW wind 15 kt. Seas 3 ft. 
.TONIGHT...NW wind 10 kt. Seas 2 ft or less. 
.MON...N wind 10 kt in the morning becoming light. Seas 2 ft
or less. 
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...SW wind 10 kt becoming NW. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas building to 3 ft. 
.THU...N wind 15 kt. Seas 3 ft. 

$$

PKZ012-190230-
Northern Lynn Canal-
350 AM AKDT Sun Apr 18 2021

...SMALL CRAFT ADVISORY THROUGH THIS MORNING...

.TODAY...N wind 25 kt. Seas 5 ft. 
.TONIGHT...N wind 20 kt. Seas 4 ft. 
.MON...N wind 15 kt in the morning becoming light. Seas 3 ft
in the morning then 2 ft or less. 
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...S wind 10 kt becoming N. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas 3 ft. 
.THU...N wind 15 kt. Seas 3 ft. 

$$

PKZ013-190230-
Southern Lynn Canal-
350 AM AKDT Sun Apr 18 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 15 kt in the morning becoming light. Seas 3 ft
in the morning then 2 ft or less. 
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...S wind 10 kt becoming NW. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas building to 3 ft. 
.THU...N wind 15 kt. Seas 3 ft. 

$$

PKZ021-190230-
Icy Strait-
350 AM AKDT Sun Apr 18 2021

.TODAY...NE wind 15 kt becoming NW in the afternoon. Seas 3 ft. 
.TONIGHT...ZNE wind 15 kt. Seas 3 ft. 
.MON...NE wind 10 kt in the morning becoming light. Seas 2 ft
or less. 
.MON NIGHT...W wind 10 kt. Seas 2 ft or less. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...N wind 15 kt. Seas building to 3 ft. 
.THU...NE wind 10 kt. Seas 3 ft. 

$$

PKZ022-190230-
Cross Sound-
350 AM AKDT Sun Apr 18 2021

.TODAY...E wind 20 kt. Seas 4 ft. 
.TONIGHT...NE wind 15 kt. Seas 4 ft. 
.MON...NE wind 15 kt. Seas 4 ft. 
.MON NIGHT...SW wind 10 kt. Seas 7 ft. SW swell. 
.TUE...W wind 10 kt. Seas 7 ft. 
.WED...N wind 10 kt. Seas 6 ft. 
.THU...NE wind 15 kt. Seas 6 ft. 

$$

PKZ031-190230-
Stephens Passage-
350 AM AKDT Sun Apr 18 2021

.TODAY...N wind 20 kt. Seas 4 ft. 
.TONIGHT...N wind 15 kt. Seas 3 ft. 
.MON...N wind 10 kt in the morning becoming light. Seas 2 ft
or less. 
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...NW wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 
.THU...N wind 15 kt. Seas 3 ft. 

$$

PKZ032-190230-
Northern Chatham Strait-
350 AM AKDT Sun Apr 18 2021

.TODAY...N wind 15 kt. Seas 3 ft. 
.TONIGHT...N wind 10 kt. Seas 2 ft or less. 
.MON...NE wind 10 kt in the morning becoming light. Seas 2 ft
or less. 
.MON NIGHT...N wind 10 kt. Seas 2 ft or less. 
.TUE...NW wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 
.THU...N wind 10 kt becoming light. Seas 2 ft or less. 

$$

PKZ033-190230-
Southern Chatham Strait-
350 AM AKDT Sun Apr 18 2021

.TODAY...NE wind 20 kt. Seas 4 ft. 
.TONIGHT...NE wind 15 kt. Seas 3 ft. 
.MON...N wind 10 kt in the morning becoming light. Seas 2 ft
or less, except 6 ft near ocean entrances. 
.MON NIGHT...N wind 10 kt. Seas 2 ft or less, except 9 ft near
ocean entrances. 
.TUE...NW wind 15 kt. Seas 3 ft. 
.WED...Light winds becoming N 10 kt. Seas 2 ft or less. 
.THU...N wind 10 kt. Seas 2 ft or less. 

$$

PKZ034-190230-
Frederick Sound-
350 AM AKDT Sun Apr 18 2021

.TODAY...NE wind 15 kt. Seas 3 ft. 
.TONIGHT...NE wind 15 kt. Seas 3 ft in the evening then 2 ft or
less. 
.MON...NE wind 10 kt in the morning becoming light. Seas 2 ft
or less. 
.MON NIGHT...Light winds. Seas 2 ft or less. 
.TUE...NW wind 10 kt. Seas 2 ft or less. 
.WED...N wind 10 kt. Seas 2 ft or less. 
.THU...NE wind 10 kt. Seas 2 ft or less. 

$$

PKZ035-190230-
Sumner Strait-
350 AM AKDT Sun Apr 18 2021

.TODAY...NE wind 20 kt. Gusts to 35 kt in the morning. Seas 4 ft.
.TONIGHT...E wind 15 kt. Out of interior passes, gusts to 35 kt
late. Seas 4 ft. 
.MON...SE wind 10 kt. Seas 2 ft or less. 
.MON NIGHT...SW wind 10 kt. Seas 2 ft or less, except 5 ft
near ocean entrances. 
.TUE...W wind 10 kt. Seas 2 ft or less. 
.WED...NW wind 10 kt. Seas 2 ft or less. 
.THU...NE wind 10 kt becoming light. Seas 2 ft or less. 

$$

PKZ036-190230-
Clarence Strait-
350 AM AKDT Sun Apr 18 2021

.TODAY...N wind 10 kt. Seas 2 ft or less. 
.TONIGHT...N wind 15 kt. Seas 3 ft in the evening then 2 ft or
less. 
.MON...N wind 10 kt becoming S in the afternoon. Seas 2 ft or
less. 
.MON NIGHT...NW wind 10 kt. Seas 2 ft or less. 
.TUE...NW wind 15 kt. Seas 3 ft. 
.WED...NW wind 10 kt. Seas 2 ft or less. 
.THU...NE wind 10 kt. Seas 2 ft or less. 

$$

What forecasters said that day

The local office's own words before this small craft advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Juneau, AK wrote its last area forecast discussion before this small craft advisory went out at Apr 16, 2:40 PM AKDT, 50 minutes earlier.

Area forecast discussion, Apr 16, 2:40 PM AKDT, 50 minutes before
Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
240 PM AKDT Fri Apr 16 2021

.SHORT TERM...Across much of the panhandle today, if you had a
chance to look out a window, or better yet, get outside, you might
have realized that it's an absolutely beautiful day. Furthermore,
in the good news department, these conditions are expected to
continue through the weekend. Ridging over the region will persist
for the next couple of days maintaining sunny skies and a precip
free next couple of days. Even Yakutat, which has been the lone
area today that has seen overcast skies and even a trace of
precip early in the afternoon, should get in on the clearing
Friday evening. High temperatures will continue to be amongst the
warmest in quite a while over the next couple of days this
weekend as well. A couple areas of the southern panhandle may even
challenge for 70 degrees, however the air aloft appears to be
somewhat cooler than thought during previous iterations of the
forecast, limiting, but not eliminating the chances for a few
areas of the north to reach 60. The converse of this and what may
actually aid in keeping the day time highs lower than previously
thought will be that the clear skies at night will allow for ample
radiative cooling. Depending on just how cold the night time lows
become could have an impact on the high the temperatures would
need to rebound to reach those currently in the forecast.

The wind will become a bit of an issue this weekend as high
pressure in Canada will impose a strong pressure gradient over the
northern panhandle. These gusty winds will be mostly noticeable
through Lynn Canal, Haines, Skagway and in downtown Juneau where
a weak mountain wave event will set up. At this point, it does
not appear to be more than a strong wind event, however, gusts to
50 mph may very well be possible. Given the fact that we will be
drying out and melting snow, any material (sand/gravel) from snow
mitigation measures may get blown around, resulting in localized
blowing dust.

.LONG TERM....../Sunday through Friday/...Looking ahead to the
long range forecast time frame, something to keep in mind is the
climate average highs. During the third week of April, climate
average highs around the panhandle range from the upper 40s to
lower 50s. I say this because the long range forecast has a slight
cooling trend, when compared to the upcoming weekend warmth. But
even with the slight cooling trend, the forecast is still calling
for warmer than climate average highs.

Finishing out the weekend in SE AK, Sunday will still have high
pressure in Canada so skies will remain clear and dry over the
panhandle. Highs on Sunday will reach the 60s to near 70 in the
south with 50s to low 60s expected for the central and northern
regions.

Going into next week, model ensemble guidance is showing high
pressure over the panhandle will weaken with hints of a low moving
in from the gulf beyond the 7 day forecast. As high pressure
weakens, high temps will dip a little bit but will still be at or
above the climate averages. Beginning Monday, and lasting through
the weekend, highs will mostly be in the 50s with lows within a
couple degrees of 40.

Precipitation chances are pretty slim overall but there are hints
of a trough that could bring some light precip Monday night to
areas along the coast. But the confidence is low on this due to
low agreement among the models.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...None.
MARINE...Small Craft Advisory for PKZ012-013.

&&

JDR/GJS

Visit us at http://www.weather.gov/Juneau

The office that day

Everything else NWS Juneau, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Apr 16, 3:53 AM AKDTSmall Craft AdvisoryAJK55 hr
Apr 16, 3:28 PM AKDTSmall Craft AdvisoryAJK24 hr
Apr 16, 3:31 PM AKDTSmall Craft AdvisoryAJK36 hr

Nearby

Small Craft Advisories in Alaska, 2021Every small craft advisory in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.