Alert archive / Alaska / Small Craft Advisories in 2021
Small Craft Advisory 274, NWS Juneau, AK
NWS Juneau, AK issued this small craft advisory at May 18, 2021, 4:20 PM AKDT. It was in force for 12 hr.
The area
The counties it named.
The facts
- Issued
- May 18, 2021, 4:20 PM AKDT (00:20 UTC)
- Expired
- May 19, 2021, 4:17 AM AKDT
- In force
- 12 hr
- Issued by
- NWS Juneau, AK
The text
As transmitted.
084 FZAK51 PAJK 190020 CWFAJK Coastal Waters Forecast for Southeast Alaska National Weather Service Juneau AK 420 PM AKDT Tue May 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. PKZ098-191500- 420 PM AKDT Tue May 18 2021 .SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS... A ridge will persist over the eastern gulf through Thursday. Outlook. A weather front will move into the eastern gulf by Friday morning and through the panhandle Friday night. $$ PKZ011-191500- Glacier Bay- 420 PM AKDT Tue May 18 2021 .TONIGHT...SW wind 10 kt in the evening becoming light and variable. Seas 2 ft or less. .WED...S wind 10 kt. Seas 2 ft or less. .WED NIGHT...S wind 10 kt in the evening becoming light. Seas 2 ft or less. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...NE wind 10 kt. Seas 2 ft or less. Rain. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 10 kt. Seas 2 ft or less. .SUN...NW wind 10 kt. Seas 2 ft or less. $$ PKZ012-191500- Northern Lynn Canal- 420 PM AKDT Tue May 18 2021 .TONIGHT...Variable wind 10 kt in the evening becoming light. Seas 2 ft or less. .WED...S wind 10 kt increasing to 20 kt in the afternoon. Seas building to 4 ft. .WED NIGHT...S wind 15 kt diminishing late. Seas 3 ft. .THU...S wind 15 kt. Seas 3 ft. .THU NIGHT...SE wind 15 kt. Seas 3 ft. .FRI...S wind 15 kt. Seas 3 ft. .SAT...S wind 10 kt. Seas 2 ft or less. .SUN...N wind 10 kt. Seas 2 ft or less. $$ PKZ013-191500- Southern Lynn Canal- 420 PM AKDT Tue May 18 2021 .TONIGHT...Variable wind 10 kt. Seas 2 ft or less. .WED...SW wind increasing to 15 kt in the afternoon. Seas 3 ft. .WED NIGHT...S wind 15 kt diminishing late. Seas 3 ft. .THU...S wind 10 kt. Seas 2 ft or less. .THU NIGHT...SE wind 10 kt. Seas 2 ft or less. Rain. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 10 kt. Seas 2 ft or less. .SUN...SE wind 10 kt. Seas 2 ft or less. $$ PKZ021-191500- Icy Strait- 420 PM AKDT Tue May 18 2021 .TONIGHT...W wind 15 kt diminishing late. Seas 3 ft. .WED...W wind increasing to 15 kt in the afternoon. Seas 3 ft. .WED NIGHT...SW wind 15 kt. Seas 3 ft. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...E wind 15 kt. Seas 3 ft. Rain. .FRI...E wind 15 kt. Seas 3 ft. .SAT...SE wind 10 kt. Seas 2 ft or less. .SUN...W wind 10 kt. Seas 2 ft or less. $$ PKZ022-191500- Cross Sound- 420 PM AKDT Tue May 18 2021 ...SMALL CRAFT ADVISORY THROUGH THIS EVENING... .TONIGHT...SW wind 25 kt diminishing to 10 kt late. Seas 6 ft. .WED...SW wind increasing to 15 kt in the afternoon. Seas 5 ft. .WED NIGHT...S wind 10 kt. Seas 4 ft. .THU...E wind 10 kt. Seas 4 ft. .THU NIGHT...E wind 15 kt. Seas 6 ft. .FRI...E wind 20 kt. Seas 7 ft. .SAT...E wind 15 kt. Seas 7 ft. .SUN...W wind 10 kt. Seas 7 ft. $$ PKZ031-191500- Stephens Passage- 420 PM AKDT Tue May 18 2021 .TONIGHT...NW wind 15 kt in the evening becoming light. Seas 3 ft subsiding to 2 or less. .WED...SW wind increasing to 15 kt in the afternoon. Seas building to 3 ft. .WED NIGHT...S wind 10 kt becoming NW late. Seas 2 ft or less. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...SE wind 10 kt. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 15 kt. Seas 3 ft. .SUN...S wind 10 kt. Seas 2 ft or less. $$ PKZ032-191500- Northern Chatham Strait- 420 PM AKDT Tue May 18 2021 .TONIGHT...NW wind 15 kt diminishing late. Seas 3 ft. .WED...NW wind 10 kt becoming S in the afternoon. Seas 2 ft or less. .WED NIGHT...S wind 15 kt diminishing late. Seas 3 ft. .THU...S wind 10 kt. Seas 2 ft or less. .THU NIGHT...SE wind 15 kt. Seas 3 ft. Rain. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 10 kt. Seas 2 ft or less. .SUN...S wind 10 kt. Seas 2 ft or less. $$ PKZ033-191500- Southern Chatham Strait- 420 PM AKDT Tue May 18 2021 .TONIGHT...NW wind 15 kt. Seas 3 ft, except 7 ft near ocean entrances. .WED...N wind 10 kt becoming S in the afternoon. Seas 2 ft or less, except 6 ft near ocean entrances. .WED NIGHT...S wind 10 kt. Seas 2 ft or less, except 6 ft near ocean entrances. .THU...S wind 10 kt. Seas 2 ft or less. .THU NIGHT...S wind 15 kt. Seas 3 ft. .FRI...SE wind 20 kt. Seas 4 ft. .SAT...S wind 10 kt. Seas 2 ft or less. .SUN...W wind 10 kt. Seas 2 ft or less. $$ PKZ034-191500- Frederick Sound- 420 PM AKDT Tue May 18 2021 .TONIGHT...NW wind 10 kt light late. Seas 2 ft or less. .WED...Light winds becoming SW 10 kt in the afternoon. Seas 2 ft or less. .WED NIGHT...SW wind 10 kt in the evening becoming light. Seas 2 ft or less. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...E wind 10 kt. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 15 kt. Seas 3 ft. .SUN...S wind 10 kt. Seas 2 ft or less. $$ PKZ035-191500- Sumner Strait- 420 PM AKDT Tue May 18 2021 .TONIGHT...W wind 10 kt. Seas 2 ft or less, except 5 ft near ocean entrances. .WED...SW wind 10 kt. Seas 2 ft or less, except 5 ft near ocean entrances. .WED NIGHT...W wind 10 kt. Seas 2 ft or less, except 5 ft near ocean entrances. .THU...W wind 10 kt. Seas 2 ft or less. .THU NIGHT...S wind 10 kt. Seas 2 ft or less. .FRI...SE wind 20 kt. Seas 3 ft. .SAT...S wind 10 kt. Seas 2 ft or less. .SUN...S wind 10 kt. Seas 2 ft or less. $$ PKZ036-191500- Clarence Strait- 420 PM AKDT Tue May 18 2021 .TONIGHT...NW wind 15 kt diminishing late. Seas 3 ft. .WED...NW wind increasing to 15 kt in the afternoon. Seas 3 ft. .WED NIGHT...NW wind 15 kt diminishing late. Seas 3 ft. .THU...SE wind 10 kt. Seas 2 ft or less. .THU NIGHT...SE wind 15 kt. Seas 3 ft. .FRI...SE wind 20 kt. Seas 4 ft. .SAT...S wind 15 kt. Seas 3 ft. .SUN...NW wind 15 kt. Seas 3 ft. $$
1 follow-up statement
278 FZAK51 PAJK 191217 CWFAJK Coastal Waters Forecast for Southeast Alaska National Weather Service Juneau AK 417 AM AKDT Wed May 19 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. PKZ098-200230- 417 AM AKDT Wed May 19 2021 .SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS... A ridge of high pressure over the central gulf Wednesday will drift east over the panhandle by Thursday. A weather front will move into the eastern gulf Thursday night and then over the panhandle through Friday. $$ PKZ011-200230- Glacier Bay- 417 AM AKDT Wed May 19 2021 .TODAY...Light winds becoming S 10 kt. Seas 2 ft or less. .TONIGHT...S wind 10 kt in the evening becoming light. Seas 2 ft or less. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...Light winds. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 10 kt becoming N. Seas 2 ft or less. .SUN...NW wind 10 kt. Seas 2 ft or less. $$ PKZ012-200230- Northern Lynn Canal- 417 AM AKDT Wed May 19 2021 .TODAY...Light winds becoming S 15 kt. Gusts to 35 kt in the afternoon. Seas building to 4 ft in the afternoon. .TONIGHT...S wind 15 kt. Seas 3 ft in the evening then 2 ft or less. .THU...S wind 15 kt. Seas building to 3 ft in the afternoon. .THU NIGHT...SE wind 10 kt. Seas 2 ft or less. .FRI...S wind 20 kt. Seas 4 ft. .SAT...S wind 15 kt. Seas 3 ft. .SUN...N wind 10 kt. Seas 2 ft or less. $$ PKZ013-200230- Southern Lynn Canal- 417 AM AKDT Wed May 19 2021 .TODAY...S wind 15 kt. Seas 3 ft. .TONIGHT...S wind 15 kt. Seas 3 ft in the evening then 2 ft or less. .THU...S wind 10 kt in the morning becoming light. Seas 2 ft or less. .THU NIGHT...SE wind 10 kt. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 10 kt. Seas 2 ft or less. .SUN...NW wind 10 kt. Seas 2 ft or less. $$ PKZ021-200230- Icy Strait- 417 AM AKDT Wed May 19 2021 .TODAY...W wind 15 kt. Seas 3 ft. .TONIGHT...W wind 10 kt. Seas 3 ft in the evening then 2 ft or less. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...E wind 15 kt. Seas 3 ft. .FRI...SE wind 20 kt. Seas 4 ft. .SAT...SE wind 15 kt. Seas 3 ft. .SUN...E wind 15 kt becoming W. Seas 3 ft. $$ PKZ022-200230- Cross Sound- 417 AM AKDT Wed May 19 2021 .TODAY...W wind 15 kt. Seas 5 ft. .TONIGHT...W wind 10 kt in the evening becoming light. Seas 4 ft. .THU...Light winds becoming E 10 kt in the afternoon. Seas 5 ft. .THU NIGHT...E wind 20 kt. Seas 8 ft. Rain. .FRI...E wind 25 kt becoming S 15 kt. Seas 8 ft. .SAT...SE wind 20 kt. Seas 8 ft. .SUN...W wind 15 kt. Seas 7 ft. $$ PKZ031-200230- Stephens Passage- 417 AM AKDT Wed May 19 2021 .TODAY...Light winds becoming NW 10 kt. Seas 2 ft or less. .TONIGHT...NW wind 10 kt. Seas 2 ft or less. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...SE wind 10 kt. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 15 kt. Seas 3 ft. .SUN...S wind 10 kt becoming NW. Seas 2 ft or less. $$ PKZ032-200230- Northern Chatham Strait- 417 AM AKDT Wed May 19 2021 .TODAY...NW wind 10 kt. Seas 2 ft or less. .TONIGHT...N wind 10 kt. Seas 2 ft or less. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...SE wind 10 kt. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...SE wind 15 kt. Seas 3 ft. .SUN...SE wind 10 kt becoming NW. Seas 2 ft or less. $$ PKZ033-200230- Southern Chatham Strait- 417 AM AKDT Wed May 19 2021 .TODAY...NW wind 10 kt. Seas 2 ft or less, except 6 ft near ocean entrances. .TONIGHT...NW wind 10 kt. Seas 2 ft or less, except 5 ft near ocean entrances. .THU...NW wind 10 kt becoming S in the afternoon. Seas 2 ft or less. .THU NIGHT...S wind 15 kt. Seas 3 ft, except 7 ft near ocean entrances. .FRI...S wind 15 kt. Seas 4 ft then 2 ft or less. .SAT...S wind 15 kt. Seas 3 ft. .SUN...S wind 10 kt becoming NW. Seas 2 ft or less. $$ PKZ034-200230- Frederick Sound- 417 AM AKDT Wed May 19 2021 .TODAY...Light winds becoming SW 10 kt in the afternoon. Seas 2 ft or less. .TONIGHT...SW wind 10 kt in the evening becoming light. Seas 2 ft or less. .THU...Light winds. Seas 2 ft or less. .THU NIGHT...E wind 10 kt. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...S wind 10 kt. Seas 3 ft. .SUN...S wind 10 kt becoming W. Seas 2 ft or less. $$ PKZ035-200230- Sumner Strait- 417 AM AKDT Wed May 19 2021 .TODAY...SW wind 10 kt. Seas 2 ft or less, except 5 ft near ocean entrances. .TONIGHT...W wind 10 kt. Seas 2 ft or less. .THU...S wind 10 kt becoming W in the afternoon. Seas 2 ft or less. .THU NIGHT...S wind 10 kt. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...S wind 10 kt. Seas 2 ft or less. .SUN...SW wind 10 kt. Seas 2 ft or less. $$ PKZ036-200230- Clarence Strait- 417 AM AKDT Wed May 19 2021 .TODAY...SE wind 10 kt. Seas 3 ft early in the morning then 2 ft or less. .TONIGHT...SE wind 10 kt becoming NW late. Seas 2 ft or less. .THU...Light winds becoming NW 10 kt in the afternoon. Seas 2 ft or less. .THU NIGHT...SE wind 10 kt. Seas 2 ft or less. .FRI...SE wind 15 kt. Seas 3 ft. .SAT...S wind 10 kt. Seas 2 ft or less. .SUN...NW wind 15 kt. Seas building to 3 ft. $$
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 May 18, 3:02 PM AKDT, 1 hour 18 minutes earlier.
Area forecast discussion, May 18, 3:02 PM AKDT, 1 hour 18 minutes before
Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
302 PM AKDT Tue May 18 2021
.SHORT TERM...Ridging currently over the Gulf will be the main
feature during the forecast period. Current satellite shows an
area of cloud and precipitation extending from BC and into the
coastal waters south of the region associated with a stationary
boundary. Further, a marine layer appears to be forming up in the
Gulf, but currently, land locations within SEAK are reporting few
to no clouds. During the evening to overnight hours, expecting the
marine layer to become more robust and eventually advect over the
coastal areas. Inner channel locations will likely remain mostly
clear for the overnight hours. This will have a direct impact on
the temperatures tonight as those coastal locations that saw
temperatures fall to near or below freezing last night should stay
warmer. Where the skies remain open, temperatures will once again
fall enough for frost potential.
Winds will generally be less than 15 kt through most of the
forecast period as the pressure gradient does not look to be very
strong. A couple exceptions do exist though. For starters, there
may be enough of a contraction of the gradient over the Yukon that
things could get a little breezy through Lynn Canal Wednesday
afternoon. Also, a low will be moving toward the region from south
of the Aleutians Thursday into Thursday night. As the associated
front moves through the Gulf, should see an increase in winds,
possibly to gales, will occur over the open waters. As onshore
flow increases ahead of this front, should see an increase in
cloud cover over the region and probably some rain for the coastal
areas by the conclusion of the short term forecast.
.LONG TERM.../Thursday to Tuesday as of 10 pm Monday/ The long
term forecast opens with a system bearing down on the area.
Cloud cover looks set to slowly rebuild throughout the area
through the day on Thursday before the system itself begins
arriving late Thursday Night. The bulk of the precipitation will
likely impact SE Alaska throughout Friday. Operational runs have
been slowly increasing QPF totals over the past few days, but am
not overly concerned with flood potential at this time. Besides
the rain, the system will bring with it small craft and gale force
winds winds to the outer coast, as well as breezy conditions for
coastal communities and some of the inner channels. Much of the
weekend will likely feature lingering chances of precipitation as
the front's parent low moves E across the gulf. Ensembles are
hinting at the possibility of some clearing late on Sunday as the
low tracks S of the panhandle, turning winds offshore. Uncertainty
continues to increase through early next week, with solutions
caught between building a ridge or bringing an Easterly wave into
the area.
&&
.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Frost Advisory from 2 AM to 8 AM AKDT Wednesday for AKZ019-020-
025-026.
MARINE...Small Craft Advisory for PKZ041-042.
&&
JDR/GFS
Visit us at http://www.weather.gov/JuneauThe office that day
Everything else NWS Juneau, AK issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| May 18, 4:28 PM AKDT | Frost Advisory | AJK | 16 hr | |
| May 19, 3:44 PM AKDT | Frost Advisory | AJK | 6 hr | |
| May 19, 3:56 PM AKDT | Small Craft Advisory | AJK | 3 days |
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.