Storm Warning 95, NWS Anchorage, AK

067 
FZAK51 PAFC 192341
CWFAER

Coastal Waters Forecast
National Weather Service Anchorage Alaska
341 PM AKDT Fri Apr 19 2024

Coastal Waters Forecast for the Northern Gulf of Alaska Coast
up to 100 nm out including Kodiak Island and Cook Inlet.

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

PKZ197-201245-
341 PM AKDT Fri Apr 19 2024
.SYNOPSIS FOR THE NORTH GULF COAST+KODIAK ISLAND WATERS+
COOK INLET...

A front extends over Kodiak Island and the Gulf through Sat 
afternoon and then dissipates. Weak low pressure lingers near 
Kodiak Island through Sun afternoon.

$$

PKZ710-201245-
Cape Suckling to Gravel Point out to 15 NM-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...E wind 25 kt. Seas 10 ft.
.SAT...NE wind 15 kt. Seas 9 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 6 ft.
.SUN...Variable wind 10 kt. Seas 6 ft.
.SUN NIGHT...SE wind 15 kt. Seas 5 ft.
.MON...E wind 15 kt. Seas 4 ft.
.TUE THROUGH WED...Variable wind 10 kt. Seas 5 ft.

$$

PKZ711-201245-
Gravel Point to Cape Cleare out to 15 NM-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...E wind 25 kt. Seas 10 ft.
.SAT...E wind 15 kt. Seas 9 ft.
.SAT NIGHT...Variable wind 10 kt. Seas 6 ft.
.SUN...Variable wind 10 kt. Seas 6 ft.
.SUN NIGHT...SE wind 15 kt. Seas 5 ft.
.MON...E wind 20 kt. Seas 5 ft.
.TUE...NE wind 15 kt. Seas 4 ft.
.WED...Variable wind 10 kt. Seas 4 ft.

$$

PKZ712-201245-
Cape Suckling to Cape Cleare from 15 to 75 NM-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 25 kt. Seas 12 ft.
.SAT...E wind 20 kt. Seas 9 ft.
.SAT NIGHT...E wind 15 kt. Seas 8 ft.
.SUN...Variable wind 10 kt. Seas 6 ft.
.SUN NIGHT...SE wind 15 kt. Seas 5 ft.
.MON...E wind 20 kt. Seas 6 ft.
.TUE...E wind 15 kt. Seas 5 ft.
.WED...Variable wind 10 kt. Seas 5 ft.

$$

PKZ715-201245-
Cape Cleare to Gore Point out to 15 NM-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 12 ft.
.SAT...NE wind 25 kt. Seas 10 ft.
.SAT NIGHT...NE wind 20 kt. Seas 9 ft.
.SUN AND SUN NIGHT...E wind 15 kt. Seas 6 ft.
.MON...E wind 25 kt. Seas 6 ft.
.TUE...E wind 20 kt. Seas 5 ft.
.WED...E wind 15 kt. Seas 5 ft.

$$

PKZ716-201245-
Cape Cleare to Gore Point from 15 to 75 NM-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY NIGHT...

.TONIGHT...E wind 30 kt. Seas 13 ft.
.SAT...E wind 25 kt. Seas 10 ft.
.SAT NIGHT...E wind 20 kt. Seas 9 ft.
.SUN AND SUN NIGHT...SE wind 15 kt. Seas 6 ft.
.MON...E wind 25 kt. Seas 7 ft.
.TUE...E wind 20 kt. Seas 6 ft.
.WED...SE wind 15 kt. Seas 5 ft.

$$

PKZ714-201245-
Resurrection Bay-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...S wind 10 kt becoming N after midnight. Gusts to 20 kt in
the evening. Seas 2 ft.
.SAT...N wind 10 kt becoming S in the afternoon. Seas 2 ft.
.SAT NIGHT...Variable wind 10 kt in the evening becoming variable
less than 10 kt. Seas 2 ft.
.SUN...S wind 10 kt. Seas 2 ft.
.SUN NIGHT...N wind 10 kt. Seas 2 ft.
.MON THROUGH TUE...Variable wind 10 kt. Seas 2 ft.
.WED...S wind 10 kt. Seas 2 ft.

$$

PKZ724-201245-
Northwest Prince William Sound-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...NE wind 20 kt. Seas 3 ft.
.SAT...NE wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt becoming N 10 kt after
midnight. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...E wind 10 kt. Seas 2 ft.
.MON THROUGH WED...NE wind 10 kt. Seas 2 ft.

$$

PKZ725-201245-
Central and Eastern Prince William Sound-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...NE wind 15 kt. Seas 3 ft.
.SAT...NE wind 10 kt in the morning becoming variable less than
10 kt. Seas 2 ft.
.SAT NIGHT...Variable wind less than 10 kt becoming NE 10 kt after
midnight. Seas 2 ft.
.SUN AND SUN NIGHT...E wind 10 kt. Seas 2 ft.
.MON...E wind 10 kt. Seas 2 ft.
.TUE...N wind 10 kt. Seas 2 ft.
.WED...W wind 10 kt. Seas 2 ft.

$$

PKZ726-201245-
Southwest Prince William Sound-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...NE wind 20 kt. Seas 3 ft.
.SAT...NE wind 15 kt becoming N 10 kt in the afternoon. Seas 2 ft.
.SAT NIGHT...N wind 10 kt. Seas 2 ft.
.SUN...Variable wind less than 10 kt. Seas 2 ft.
.SUN NIGHT...E wind 10 kt. Seas 2 ft.
.MON THROUGH TUE...NE wind 10 kt. Seas 2 ft.
.WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ720-201245-
Port of Valdez-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SAT THROUGH WED...Variable wind less than 10 kt. Seas 2 ft.

$$

PKZ721-201245-
Valdez Narrows-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...NE wind 20 kt. Seas 3 ft.
.SAT...NE wind 20 kt. Seas 3 ft.
.SAT NIGHT...N wind 10 kt becoming NE 15 kt after midnight. Seas
3 ft.
.SUN...NE wind 10 kt. Seas 2 ft.
.SUN NIGHT...SW wind 10 kt. Seas 2 ft.
.MON THROUGH WED...N wind 10 kt. Seas 2 ft.

$$

PKZ722-201245-
Valdez Arm-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...NE wind 20 kt. Seas 3 ft.
.SAT...NE wind 15 kt becoming N 10 kt in the afternoon. Seas 3 ft.
.SAT NIGHT...Variable wind less than 10 kt becoming NE 10 kt after
midnight. Seas 2 ft.
.SUN AND SUN NIGHT...NE wind 10 kt. Seas 2 ft.
.MON THROUGH TUE...N wind 10 kt. Seas 2 ft.
.WED...NW wind 10 kt. Seas 2 ft.

$$

PKZ723-201245-
Passage Canal-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...E wind 10 kt. Seas 2 ft.
.SAT AND SAT NIGHT...Variable wind less than 10 kt. Seas 2 ft.
.SUN THROUGH WED...E wind 10 kt. Seas 2 ft.

$$

PKZ730-201245-
West of Barren Islands Including Kamishak Bay-
341 PM AKDT Fri Apr 19 2024

...GALE WARNING TONIGHT...

.TONIGHT...E wind 40 kt diminishing to 30 kt after midnight. Seas
14 ft. Rain.
.SAT...E wind 25 kt. Seas 9 ft. Rain.
.SAT NIGHT...E wind 20 kt. Seas 6 ft. Rain.
.SUN...E wind 20 kt. Seas 5 ft.
.SUN NIGHT...E wind 15 kt. Seas 4 ft.
.MON THROUGH WED...E wind 20 kt. Seas 5 ft.

$$

PKZ731-201245-
Barren Islands East-
341 PM AKDT Fri Apr 19 2024

...GALE WARNING TONIGHT...

.TONIGHT...E wind 40 kt. Seas 15 ft. Rain.
.SAT...E wind 30 kt. Seas 10 ft. Rain.
.SAT NIGHT...E wind 25 kt. Seas 8 ft. Rain.
.SUN AND SUN NIGHT...E wind 20 kt. Seas 6 ft.
.MON THROUGH TUE...E wind 25 kt. Seas 6 ft.
.WED...E wind 20 kt. Seas 5 ft.

$$

PKZ733-201245-
Gore Point to Marmot Island from 15 to 80 NM-
341 PM AKDT Fri Apr 19 2024

...GALE WARNING TONIGHT...

.TONIGHT...E wind 35 kt. Seas 15 ft. Rain.
.SAT...E wind 25 kt. Seas 11 ft. Rain.
.SAT NIGHT...E wind 20 kt. Seas 9 ft. Rain.
.SUN...S wind 15 kt. Seas 7 ft.
.SUN NIGHT...SE wind 15 kt. Seas 6 ft.
.MON THROUGH TUE...E wind 25 kt. Seas 7 ft.
.WED...E wind 20 kt. Seas 5 ft.

$$

PKZ732-201245-
Marmot Island to Sitkinak out to 15 NM-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...Variable wind 10 kt except E 30 kt N of Dangerous Cape.
Seas 7 ft, except 13 ft N of Dangerous Cape. Rain.
.SAT...Variable wind 10 kt except NE 20 kt N of Dangerous Cape.
Seas 7 ft. Rain.
.SAT NIGHT...Variable wind 10 kt. Seas 6 ft. Rain.
.SUN...S wind 15 kt. Seas 7 ft.
.SUN NIGHT...E wind 15 kt. Seas 4 ft.
.MON...NE wind 25 kt. Seas 6 ft.
.TUE THROUGH WED...E wind 20 kt. Seas 6 ft.

$$

PKZ734-201245-
Marmot Island To Sitkinak from 15 to 85 NM-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY THROUGH SATURDAY...

.TONIGHT...Variable wind 10 kt except E 30 kt N of Dangerous Cape.
Seas 9 ft, except 15 ft N of Dangerous Cape.
.SAT...Variable wind 10 kt except E 20 kt N of Dangerous Cape.
Seas 8 ft. Rain.
.SAT NIGHT...Variable wind 10 kt. Seas 7 ft. Rain.
.SUN...S wind 15 kt. Seas 6 ft.
.SUN NIGHT...SE wind 15 kt. Seas 5 ft.
.MON...NE wind 25 kt. Seas 6 ft.
.TUE...E wind 20 kt. Seas 7 ft.
.WED...SE wind 25 kt. Seas 7 ft.

$$

PKZ736-201245-
Chiniak Bay-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...E wind 20 kt. Gusts to 30 kt in the evening. Seas 7 ft. 
Rain.
.SAT...E wind 15 kt diminishing to 10 kt in the afternoon. Seas
4 ft. Rain.
.SAT NIGHT...SE wind 10 kt in the evening becoming variable less
than 10 kt. Seas 3 ft. Rain.
.SUN...S wind 15 kt. Seas 3 ft.
.SUN NIGHT...SE wind 10 kt. Seas 3 ft.
.MON...E wind 20 kt. Seas 6 ft.
.TUE...E wind 15 kt. Seas 4 ft.
.WED...E wind 20 kt. Seas 4 ft.

$$

PKZ737-201245-
Marmot Bay-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...E wind 25 kt. Seas 10 ft. Rain.
.SAT...E wind 15 kt. Seas 4 ft. Rain.
.SAT NIGHT...E wind 10 kt. Seas 3 ft. Rain.
.SUN...S wind 15 kt. Seas 3 ft.
.SUN NIGHT...SE wind 15 kt. Seas 3 ft.
.MON...E wind 20 kt. Seas 6 ft.
.TUE...E wind 15 kt. Seas 4 ft.
.WED...E wind 20 kt. Seas 5 ft.

$$

PKZ738-201245-
Shelikof Strait-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE wind 30 kt. Seas 10 ft. Rain.
.SAT...NE wind 20 kt. Seas 6 ft. Rain.
.SAT NIGHT...NE wind 15 kt. Seas 4 ft. Rain.
.SUN...Variable wind 10 kt. Seas 3 ft.
.SUN NIGHT...E wind 15 kt. Seas 3 ft.
.MON THROUGH WED...E wind 20 kt. Seas 5 ft.

$$

PKZ742-201245-
Cook Inlet Kalgin Island to Point Bede-
341 PM AKDT Fri Apr 19 2024

...GALE WARNING TONIGHT...

.TONIGHT...NE wind 35 kt diminishing to 25 kt after midnight. Seas
11 ft.
.SAT...NE wind 25 kt. Seas 7 ft.
.SAT NIGHT...NE wind 10 kt becoming N 15 kt after midnight. Seas
4 ft.
.SUN...NE wind 20 kt. Seas 4 ft.
.SUN NIGHT...NW wind 10 kt. Seas 3 ft.
.MON THROUGH TUE...NE wind 15 kt. Seas 3 ft.
.WED...NE wind 10 kt. Seas 3 ft.

$$

PKZ740-201245-
Cook Inlet North of Kalgin Island-
341 PM AKDT Fri Apr 19 2024

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...NE wind 25 kt. Seas 7 ft.
.SAT...NE wind 20 kt. Seas 5 ft.
.SAT NIGHT...NE wind 10 kt. Seas 2 ft.
.SUN...NE wind 15 kt. Seas 3 ft.
.SUN NIGHT...SW wind 10 kt. Seas 2 ft.
.MON THROUGH WED...N wind 10 kt. Seas 3 ft.

$$

PKZ741-201245-
Kachemak Bay-
341 PM AKDT Fri Apr 19 2024

.TONIGHT...E wind 20 kt. Gusts to 30 kt in the evening. Seas 3 ft.
.SAT...NE wind 15 kt becoming E 10 kt in the afternoon. Seas 2 ft.
.SAT NIGHT...NE wind 10 kt. Seas 2 ft.
.SUN AND SUN NIGHT...E wind 10 kt. Seas 2 ft.
.MON THROUGH TUE...E wind 15 kt. Seas 3 ft.
.WED...E wind 10 kt. Seas 2 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
434 PM AKDT Thu Apr 18 2024

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3/This
afternoon through Sunday afternoon)...

Wet and windy weather persists into the weekend as an atmospheric
river lingers near southern Kenai Peninsula and Kodiak Island. A
Flood Watch is in effect for Kodiak Island, while a Flood Advisory
is in effect for the Kodiak City area. We continue to monitor rain
amounts and intensity associated with the atmospheric river. Aside
from an increase in precipitation amounts for Kodiak Island, few
major changes were made with this most recent forecast package.

Diving into the details... an Omega block is in place over Alaska
and Canada, with a high amplitude ridge centered over NW Canada,
a deep trough and closed low nearly stationary to the south of the
Alaska Peninsula and Kodiak Island, and a deep trough and low
east of the ridge over the heart of Canada. An atmospheric river
extends from the East Tropical Pacific north and west to Kodiak
Island and the western Gulf of Alaska. A series of upper level
waves rounding the upper low are tracking westward across the Gulf
to Kodiak Island, bringing a resurgence of stronger winds and
precipitation from this afternoon through late tonight.

The upper level ridge strengthens over Southcentral through
tomorrow, keeping rain limited to areas south of Seward.
Meanwhile, steady rain will continue for Kodiak Island, with
periods of moderate to heavy rain as upper level short-waves
continue to pass overhead. There has been some uncertainty with
rain amounts as the atmospheric river oscillates north and south
under the influence of these shortwaves. With models keeping the
front more consistently over Kodiak Island, have increased rain
amounts and durations. The heaviest periods of rainfall will
likely occur this afternoon/evening, and from early Friday morning
through the afternoon. Expect lighter but steady rainfall
throughout for Kodiak Island, bringing an additional 2-3 inches of
rain from what has already been observed yesterday and today.
Rain lingers for Kodiak Island through Saturday, though
precipitation should be much lighter as the surface low occludes
and the tropical moisture tap is lost.

-SEB/KC

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA, THE BERING SEA AND THE
ALEUTIANS (Days 1 through 3)...

A vertically stacked low remains roughly 300 miles to the south
of Sand Point and the Alaska Peninsula this evening. An axis of
cooler temperatures aloft (-10 degrees Celsius at 850 mb)
stretches from the north central Bering down through the Eastern
Aleutians as flow wraps cyclonically into the southern side of the
low. Wind remains elevated within this thermal gradient with a
swath of northerly gales extending from east of the Pribilof
Islands down into the Dutch Harbor and Akutan. Ongoing snow
showers across Unalaska have kept visibility between one half mile
and one mile, as winds gusting over 30 knots are resulting in
poor visibility within the falling snow. Temperatures are likely
too warm at the surface for snow on the ground to blow around, but
reduced visibility and deteriorated conditions are forecast to
persist through Friday morning. A winter weather advisory remains
in effect for the Eastern Aleutians through 8am AKDT Friday.
Likewise, a blizzard warning for Toksook Bay has been extended
through 6am AKDT Friday morning as snow and blowing snow with
visibility down to one quarter mile are expected to linger through
tonight. Of note, rain has been observed in Bethel with surface
temperatures below freezing. Thus, a mix of freezing rain and snow
is possible into tonight with light icing on surfaces.

East of the stacked low, strong southeasterly flow is spilling
into the Kamishak Gap. Easterly winds have gusted to around 35 mph
through much of the day for Iliamna, Koliganek, and New Stuyahok.
Winds across all of Southwest Alaska look to remain elevated
through late Saturday. Above normal temperatures are forecast for
the region with mostly dry conditions forecast for Friday and
Saturday. The pattern finally begins to change over the weekend as
the vertically stacked low south of the AKPEN falls apart and a
new developing low moves into the western Bering by Sunday.

-BL

&&

.LONG TERM FORECAST (Days 4 through 7: Monday through Thursday)...

Changes are expected as the weather pattern is becoming more
stable conditions through the forecast period. An upper level
ridge is slowly losing its hold across Mainland Alaska. A Western
Gulf of Alaska low weakens and slips across the Gulf to Haida
Gwaii by Wednesday before dissipating. A well developed Aleutian
low maintains some additional upper level support from both
Siberia and and the Northern Pacific through midweek. A number of
moderate shortwaves rotate through the pattern across the
Aleutians and along the Western Coasts.

Periods of rain spread across Southcentral Alaska through
Wednesday from the Kenai Peninsula to the Canadian Border. The
most active weather will be associated with the Aleutian/Bering
low and its front on Monday. Heavy rains spread across the Central
and Eastern Aleutians, with mixed rain and snow over the Bering
with the low center. Gusty Southerly winds move with the front
from the North Pacific, across the Pribilofs and St Matthew
Island. Rain continues to spread into the Alaska Peninsula with
the front through Tuesday, and into Southwest Alaska late Tuesday
and Wednesday. Another round of locally heavy rains moves into
Kodiak Island late Tuesday through Thursday. Gusty Southeasterly
winds moves through the Barren Island into Kamishak Bay Wednesday
and Thursday.

Kutz

.AVIATION...

PANC...VFR conditions will persist. The Turnagain Arm wind is
expected to continue bending southward down Cook Inlet while
generally northerly winds persist over the airport. Southeasterly
winds are flowing across the mountains and generating mountain
waves. Low level wind shear concerns are borderline for the
forecast period with a majority of the shear to remain near or
above the 2000 foot level. At the surface, winds are coming from
the northwest over the terminal and although there is a small
chance for winds to mix and become gusty this afternoon, winds are
expected to remain lighter.

rux

&&