Small Craft Advisory 114, NWS Juneau, AK

312 
FZAK51 PAJK 221247
CWFAJK

Coastal Waters Forecast for Southeast Alaska
National Weather Service Juneau AK
347 AM AKST Mon Feb 22 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.

PKZ098-230330-
347 AM AKST Mon Feb 22 2021
.SYNOPSIS FOR SOUTHEAST ALASKA INNER CHANNELS COASTAL WATERS...
SW flow over the gulf and pressure gradient weaken through late
Monday night. A ridge of high pressure will move over the area
Tuesday. Outlook. A very strong low moves into the AK Gulf
Wednesday. 

$$

PKZ011-230330-
Glacier Bay-
347 AM AKST Mon Feb 22 2021

.TODAY...S wind 20 kt diminishing. Seas 4 ft. Snow showers and 
rain showers early in the morning. 
.TONIGHT...S wind 15 kt. Seas 3 ft. 
.TUE...SW wind 10 kt in the morning becoming light. Seas 2 ft
or less. 
.TUE NIGHT...SE wind 15 kt. Seas 3 ft. 
.WED...S wind 15 kt. Seas 3 ft. 
.THU...NW wind 15 kt. Seas 3 ft. 
.FRI...NE wind 10 kt. Seas 3 ft. 

$$

PKZ012-230330-
Northern Lynn Canal-
347 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH THIS AFTERNOON...

.TODAY...S wind 25 kt. Seas 5 ft. Rain showers and snow showers
early in the morning. 
.TONIGHT...S wind 20 kt becoming N 15 kt late. Seas 4 ft. 
.TUE...S wind increasing to 15 kt. Seas building to 3 ft in the 
afternoon.
.TUE NIGHT...S wind 20 kt. Seas 4 ft. 
.WED...S wind 15 kt. Seas 3 ft. 
.THU...S wind 20 kt. Seas 4 ft. 
.FRI...S wind 15 kt. Seas 4 ft then 2 ft or less. 

$$

PKZ013-230330-
Southern Lynn Canal-
347 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH THIS AFTERNOON...

.TODAY...S wind 25 kt. Seas 5 ft. Rain showers and snow showers in
the morning, then rain showers in the afternoon. 
.TONIGHT...S wind 20 kt. Gusts to 35 kt in the evening. Seas
4 ft. 
.TUE...S wind increasing to 15 kt. Seas building to 3 ft in the 
afternoon.
.TUE NIGHT...S wind 20 kt. Seas 4 ft. 
.WED...S wind 15 kt. Seas 3 ft. 
.THU...S wind 15 kt. Seas 3 ft. 
.FRI...S wind 15 kt. Seas 3 ft. 

$$

PKZ021-230330-
Icy Strait-
347 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH THIS EVENING...

.TODAY...E wind 15 kt becoming W in the afternoon, except W wind 
25 kt west of Point Adolphus. Seas 5 ft. Rain showers and snow 
showers in the morning.
.TONIGHT...W wind 25 kt diminishing late. Strongest winds west of
Point Adolphus. Seas 5 ft.
.TUE...W wind increasing to 15 kt. Seas building to 3 ft in the 
afternoon.
.TUE NIGHT...SE wind 20 kt. Seas 4 ft. 
.WED...E wind 25 kt. Seas 5 ft. 
.THU...W wind 15 kt. Seas 3 ft. 
.FRI...W wind 15 kt becoming N. Seas 3 ft. 

$$

PKZ022-230330-
Cross Sound-
347 AM AKST Mon Feb 22 2021

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

.TODAY...SW wind 25 kt. Seas 14 ft. W swell. Rain showers and
snow showers in the morning. Slight chance of thunderstorms.
.TONIGHT...W wind 30 kt diminishing to 20 kt late. Seas 14 ft. 
.TUE...W wind 15 kt. Seas 12 ft. W swell. 
.TUE NIGHT...SW wind 20 kt. Seas 10 ft. W swell. 
.WED...E wind 30 kt. Seas 10 ft. 
.THU...W wind 25 kt diminishing to 15 kt. Seas 12 ft. 
.FRI...W wind 15 kt becoming S. Seas 11 ft. 

$$

PKZ031-230330-
Stephens Passage-
347 AM AKST Mon Feb 22 2021

.TODAY...S wind 20 kt. Seas 4 ft. Rain showers. Snow showers in 
the morning. 
.TONIGHT...S wind 15 kt. Seas 3 ft. 
.TUE...S wind increasing to 15 kt. Seas building to 3 ft in the 
afternoon.
.TUE NIGHT...S wind 20 kt. Seas 4 ft. 
.WED...S wind 20 kt. Seas 4 ft. 
.THU...SW wind 20 kt. Seas 4 ft. 
.FRI...S wind 15 kt. Seas 3 ft. 

$$

PKZ032-230330-
Northern Chatham Strait-
347 AM AKST Mon Feb 22 2021

.TODAY...S wind 20 kt diminishing. Seas 4 ft. Rain showers. Snow 
showers in the morning.
.TONIGHT...S wind 15 kt. Seas 3 ft. 
.TUE...S wind 15 kt. Seas building to 3 ft in the afternoon. 
.TUE NIGHT...S wind 20 kt. Gusts to 35 kt. Seas 4 ft. 
.WED...S wind 20 kt. Seas 4 ft. 
.THU...S wind 20 kt. Seas 4 ft. 
.FRI...S wind 15 kt. Seas 3 ft. 

$$

PKZ033-230330-
Southern Chatham Strait-
347 AM AKST Mon Feb 22 2021

...SMALL CRAFT ADVISORY THROUGH THIS AFTERNOON...

.TODAY...S wind 25 kt. Strongest winds near ocean entrances. Seas
5 ft, except 14 ft near ocean entrances. Rain showers in the 
morning. 
.TONIGHT...SW wind 20 kt. Seas 4 ft, except 13 ft near ocean
entrances. 
.TUE...SW wind 10 kt. Seas 2 ft or less, except 12 ft near
ocean entrances. 
.TUE NIGHT...S wind 15 kt. Seas 3 ft, except 10 ft near ocean
entrances. 
.WED...SE wind 20 kt becoming SW. Seas 4 ft. 
.THU...W wind 25 kt. Seas 5 ft. 
.FRI...NW wind 15 kt becoming SW. Seas 3 ft. 

$$

PKZ034-230330-
Frederick Sound-
347 AM AKST Mon Feb 22 2021

.TODAY...S wind 20 kt. Gusts to 35 kt in the afternoon. Seas
4 ft. Snow and rain showers early in the morning. 
.TONIGHT...S wind 20 kt diminishing. Seas 4 ft. 
.TUE...S wind 10 kt. Seas 2 ft or less. 
.TUE NIGHT...SE wind 20 kt. Seas 4 ft. 
.WED...S wind 20 kt. Seas 4 ft. 
.THU...W wind 25 kt. Seas 5 ft. 
.FRI...W wind 15 kt. Seas 3 ft. 

$$

PKZ035-230330-
Sumner Strait-
347 AM AKST Mon Feb 22 2021

.TODAY...SW wind 20 kt. Gusts to 35 kt in the afternoon. Seas
4 ft, except 8 ft near ocean entrances. Rain showers. Snow 
showers in the morning. 
.TONIGHT...SW wind 20 kt. Gusts to 35 kt in the evening. Seas
4 ft, except 8 ft near ocean entrances. 
.TUE...SW wind 15 kt diminishing. Seas 3 ft in the morning then 2
ft or less. Near ocean entrances, seas 7 ft. 
.TUE NIGHT...SE wind 15 kt. Seas 3 ft, except 6 ft near ocean
entrances. 
.WED...SE wind 20 kt becoming SW. Seas 5 ft. 
.THU...W wind 25 kt. Seas 5 ft. 
.FRI...NW wind 15 kt becoming SW. Seas 3 ft. 

$$

PKZ036-230330-
Clarence Strait-
347 AM AKST Mon Feb 22 2021

.TODAY...S wind 20 kt. Seas 4 ft, except 8 ft near ocean
entrances. Rain showers in the morning. 
.TONIGHT...S wind 20 kt. Seas 4 ft, except 7 ft near ocean
entrances. Rain showers in the evening. 
.TUE...SE wind 15 kt diminishing. Seas 3 ft in the morning then 2
ft or less. Near ocean entrances, seas 7 ft. 
.TUE NIGHT...SE wind 15 kt. Seas 3 ft, except 6 ft near ocean
entrances. 
.WED...SE gale to 40 kt becoming W. Seas 8 ft. 
.THU...W wind 25 kt. Seas 5 ft. 
.FRI...NW wind 20 kt becoming SW. Seas 4 ft. 

$$

Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
252 PM AKST Sun Feb 21 2021

.SHORT TERM.../To Tuesday / Weather front moved through the
panhandle Sunday and what remains this evening is onshore shower
activity for tonight and through much of Monday while the PoPs
decrease from the northwest. Cooler temperatures also working into
the panhandle pushing out off the warm air the pair front spread
into SE AK. Mixed rain and snow, going to snow, mixed with rain
during the warmer parts of the day Monday. A weak trough aloft
will push in a few more snow showers to the coast Monday night
and then Tuesday starts to dry before the next incoming system.

The showers tonight and into early Monday have prompted a Winter
weather advisory for the higher elevations of the Prince of Wales
road system about 3 to 4 inches, and 2 to 7 inches in the Juneau
area. Accumulations with showers can vary widely, however this is
our best estimate.

Still some locally gusty winds in the panhandle. Skagway should
see gusts 40 mph this evening and Lynn Canal. Most of the inner
channels still expecting to see Small Craft level winds through
tonight while the outer coast near 25 kt winds but swell moving
towards the coast keeping the seas above 8 feet so small crafts
there.

.LONG TERM.../Tuesday through Sunday night/...This long range
forecast period begins with an upper ridge over the western Gulf
moving rapidly to the east. Upstream, a sharply defined upper
trough will move east and displace the ridge over the northern
gulf be Wednesday afternoon. Upper level northwesterly jet flow
of 70 to 120 kt over the Panhandle will accompany each passing
ridge. This pattern will repeat through the balance of the
upcoming week, with variations in the strength of the ridges,
troughs, and corresponding jet streams. All in all, a very active
weather pattern for Southeast Alaska.

At the surface, a front will already be well past the Panhandle
with residual shower activity through the day. Tuesday night will
offer a break from the precipitation before the next front
arrives on Wednesday. This front is looking more and more like a
significant snow maker for parts of Southeast Alaska. A transition
to rain will likely occur over the southern outer coast by
Wednesday afternoon, then the southern inner channels later that
evening. A transition to rain north of Frederick Sound is not
certain but precipitation amounts are expected to taper off
through the end of the work week. Long range models are depicting
still another front for the upcoming weekend and this one is
currently looking like another snow machine for the northern half
of Southeast Alaska through Saturday night.

Winds throughout the long range forecast period are looking to be
quite mild for the Gulf of Alaska and the inner channels
considering it is Winter. At present, gales are limited to the
offshore waters of marine zone 310 with periods of small craft
winds for the ocean entrances of Cross Sound, Chatham Strait, and
SUmner Strait.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Winter Weather Advisory from midnight tonight to 9 AM AKST
     Monday for AKZ027-028.
     Winter Weather Advisory from 9 PM this evening to 11 AM AKST
     Monday for AKZ025.
     Strong Wind Monday afternoon for AKZ023.
     Strong Wind until 9 PM AKST this evening for AKZ018.
MARINE...Gale Warning for PKZ022-041>043-051.
     Small Craft Advisory for PKZ011>013-021-031>036-052-053.

&&

Bezenek/Fritsch

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

PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE JUNEAU AK
1154 AM AKST SUN FEB 21 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1045 AM     HEAVY SNOW       5 SSE HAINES            59.17N 135.39W
02/21/2021  M7.0 INCH        HAINES             AK   TRAINED SPOTTER

            THE SPOTTER MEASURED 1.5 INCHES OF NEW SNOW
            AT 4 PM YESTERDAY. HE THEN CLEARED THE BOARD
            AFTER THAT MEASUREMENT. HE MEASURED AN
            ADDITIONAL 5.5 INCHES OF NEW SNOW AT AROUND
            10:45 AM TODAY FOR A GRAND TOTAL OF 7 INCHES
            OF HEAVY WET SNOW FOR THE EVENT.

0815 AM     HEAVY SNOW       1 NW HAINES             59.24N 135.46W
02/21/2021  M15.0 INCH       HAINES             AK   TRAINED SPOTTER

            HAD 9 INCHES AS OF 930 LAST NIGHT. 6 MORE
            INCHES OVERNIGHT.

0750 AM     HEAVY SNOW       SKAGWAY                 59.45N 135.31W
02/21/2021  M7.0 INCH        SKAGWAY            AK   DEPT OF HIGHWAYS

            5 TO 7 INCHES OF SNOW ON KLONDIKE UP TO MILE
            10. ROAD LISTED AS CLOSED, NO SO REPORT FROM
            MILE 10 TO BORDER. STILL SNOWING.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JUNEAU AK
1155 AM AKST SUN FEB 21 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1045 AM     HEAVY SNOW       5 SSE HAINES            59.17N 135.39W
02/21/2021  M7.0 INCH        HAINES             AK   TRAINED SPOTTER

            THE SPOTTER MEASURED 1.5 INCHES OF NEW SNOW
            AT 4 PM YESTERDAY. HE THEN CLEARED THE BOARD
            AFTER THAT MEASUREMENT. HE MEASURED AN
            ADDITIONAL 5.5 INCHES OF NEW SNOW AT AROUND
            10:45 AM TODAY FOR A GRAND TOTAL OF 7 INCHES
            OF HEAVY WET SNOW FOR THE EVENT.

0815 AM     HEAVY SNOW       1 NW HAINES             59.24N 135.46W
02/21/2021  M15.0 INCH       HAINES             AK   TRAINED SPOTTER

            HAD 9 INCHES AS OF 930 LAST NIGHT. 6 MORE
            INCHES OVERNIGHT.

0750 AM     HEAVY SNOW       SKAGWAY                 59.45N 135.31W
02/21/2021  M7.0 INCH        SKAGWAY            AK   DEPT OF HIGHWAYS

            5 TO 7 INCHES OF SNOW ON KLONDIKE UP TO MILE
            10. ROAD LISTED AS CLOSED, NO SO REPORT FROM
            MILE 10 TO BORDER. STILL SNOWING.

&&

PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JUNEAU AK
114 PM AKST SUN FEB 21 2021

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

1115 AM     HEAVY SNOW       8 SSE HAINES            59.13N 135.35W
02/21/2021  M13.0 INCH       HAINES             AK   PUBLIC

            13 INCHES OF NEW SNOW WAS MEASURED AS THE
            GRAND TOTAL FROM THIS EVENT AT 400 FT
            ELEVATION ON CHILKAT STATE PARK RD.

&&

JLC