Gale Warning 396, NWS Anchorage, AK

958 
FZAK52 PAFC 012328
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
328 PM AKDT Sun Jun 1 2025

Coastal Waters Forecast for Southwest Alaska+Bristol Bay+The
Alaska Peninsula Waters and the Aleutian Islands up to 100 nm out.

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.

PKZ199-021145-
328 PM AKDT Sun Jun 1 2025
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 977 mb low 135 nm WSW of Saint Paul moves 50 nm north of Atka 
at 991 mb by Mon morning. A trough wrapping around the low 
becomes a new 994 mb low center 150 nm north of Akutan by Mon 
afternoon. The two centers merge into a single 1000 mb low 138 nm 
west of Togiak by Tue morning.

$$

PKZ750-021145-
Sitkinak to Castle Cape out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 12 ft.
.MON...SE wind 30 kt. Seas 10 ft. Rain.
.MON NIGHT...S wind 25 kt. Seas 9 ft. Rain showers.
.TUE...SW wind 25 kt. Seas 9 ft.
.TUE NIGHT...SW wind 20 kt. Seas 8 ft.
.WED THROUGH THU...W wind 20 kt. Seas 5 ft.
.FRI...NE wind 15 kt. Seas 4 ft.

$$

PKZ751-021145-
Sitkinak to Castle Cape from 15 to 100 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 17 ft.
.MON...S wind 30 kt. Seas 13 ft. Rain.
.MON NIGHT...S wind 30 kt. Seas 14 ft. Rain showers.
.TUE...SW wind 25 kt. Seas 14 ft.
.TUE NIGHT...SW wind 20 kt. Seas 12 ft.
.WED THROUGH THU...W wind 20 kt. Seas 8 ft.
.FRI...Variable wind 10 kt. Seas 6 ft.

$$

PKZ752-021145-
Castle Cape to Cape Tolstoi out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 12 ft. Rain.
.MON...SE wind 30 kt. Seas 10 ft. Rain.
.MON NIGHT...S wind 20 kt. Seas 9 ft. Rain showers.
.TUE...SW wind 20 kt. Seas 8 ft.
.TUE NIGHT...W wind 15 kt. Seas 6 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI...Variable wind 10 kt. Seas 2 ft.

$$

PKZ753-021145-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 16 ft. Rain.
.MON...S wind 30 kt. Seas 16 ft. Rain.
.MON NIGHT...S wind 30 kt. Seas 14 ft. Rain showers.
.TUE...SW wind 30 kt. Seas 14 ft.
.TUE NIGHT...SW wind 15 kt. Seas 11 ft.
.WED THROUGH THU...W wind 15 kt. Seas 8 ft.
.FRI...NE wind 15 kt. Seas 5 ft.

$$

PKZ754-021145-
Cape Tolstoi to Cape Sarichef out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 12 ft. Rain.
.MON...S wind 30 kt. Seas 13 ft. Rain.
.MON NIGHT...S wind 20 kt. Seas 11 ft.
.TUE...W wind 15 kt. Seas 9 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 6 ft.
.WED...NW wind 15 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 5 ft.
.FRI...N wind 15 kt. Seas 3 ft.

$$

PKZ755-021145-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
328 PM AKDT Sun Jun 1 2025

...GALE WARNING THROUGH MONDAY...

.TONIGHT...S wind 25 kt increasing to 35 kt after midnight. Seas
16 ft. Rain.
.MON...S wind 35 kt diminishing to 25 kt in the afternoon. Seas
17 ft. Rain.
.MON NIGHT...S wind 30 kt. Seas 14 ft. Rain showers.
.TUE...SW wind 25 kt. Seas 13 ft.
.TUE NIGHT...NW wind 15 kt. Seas 9 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 7 ft.
.FRI...N wind 20 kt. Seas 5 ft.

$$

PKZ756-021145-
Port Heiden to Nelson Lagoon out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...S wind 25 kt. Seas 5 ft.
.MON...SE wind 30 kt. Seas 4 ft.
.MON NIGHT...S wind 20 kt. Seas 4 ft. Rain.
.TUE...SW wind 20 kt. Seas 4 ft.
.TUE NIGHT...W wind 15 kt. Seas 4 ft.
.WED THROUGH THU...W wind 15 kt. Seas 5 ft.
.FRI...N wind 15 kt. Seas 4 ft.

$$

PKZ757-021145-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...S wind 25 kt. Seas 6 ft. Rain.
.MON...SE wind 30 kt. Seas 7 ft. Rain.
.MON NIGHT...S wind 20 kt. Seas 6 ft. Rain showers.
.TUE...SW wind 20 kt. Seas 4 ft.
.TUE NIGHT...W wind 15 kt. Seas 4 ft.
.WED THROUGH THU...W wind 15 kt. Seas 5 ft.
.FRI...N wind 15 kt. Seas 4 ft.

$$

PKZ758-021145-
Nelson Lagoon to Cape Sarichef out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 6 ft. Rain.
.MON...SE wind 25 kt. Seas 5 ft. Rain.
.MON NIGHT...S wind 25 kt becoming SW 15 kt after midnight. Seas
4 ft.
.TUE...W wind 20 kt. Seas 5 ft.
.TUE NIGHT...W wind 15 kt. Seas 4 ft.
.WED THROUGH FRI...N wind 15 kt. Seas 5 ft.

$$

PKZ759-021145-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...S wind 25 kt. Seas 7 ft. Rain.
.MON...SE wind 30 kt. Seas 8 ft. Rain.
.MON NIGHT...S wind 20 kt. Seas 6 ft.
.TUE...W wind 20 kt. Seas 5 ft.
.TUE NIGHT...W wind 15 kt. Seas 4 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 6 ft.
.FRI...N wind 15 kt. Seas 3 ft.

$$

PKZ770-021145-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...S wind 25 kt. Seas 9 ft. Rain.
.MON...S wind 25 kt. Seas 6 ft. Rain.
.MON NIGHT...NW wind 15 kt. Seas 5 ft.
.TUE...NW wind 20 kt. Seas 5 ft.
.TUE NIGHT...NW wind 15 kt. Seas 4 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 5 ft.
.FRI...NW wind 20 kt. Seas 4 ft.

$$

PKZ772-021145-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...S wind 25 kt. Seas 11 ft. Rain.
.MON...S wind 20 kt. Seas 7 ft. Rain.
.MON NIGHT...NW wind 20 kt. Seas 6 ft.
.TUE...NW wind 20 kt. Seas 6 ft.
.TUE NIGHT...NW wind 15 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI...NW wind 15 kt. Seas 4 ft.

$$

PKZ771-021145-
Unalaska Bay-
328 PM AKDT Sun Jun 1 2025

.TONIGHT...S wind 20 kt. Seas 3 ft. Rain.
.MON...SW wind 10 kt. Seas 2 ft. Rain.
.MON NIGHT...W wind 10 kt increasing to 15 kt after midnight. Seas
3 ft.
.TUE...W wind 15 kt. Seas 3 ft.
.TUE NIGHT...NW wind 10 kt. Seas 3 ft.
.WED...W wind 15 kt. Seas 3 ft.
.THU...Variable wind less than 10 kt. Seas 3 ft.
.FRI...NW wind 15 kt. Seas 3 ft.

$$

PKZ773-021145-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 13 ft. Rain.
.MON...SW wind 25 kt. Seas 13 ft. Rain.
.MON NIGHT...W wind 20 kt. Seas 12 ft.
.TUE AND TUE NIGHT...NW wind 15 kt. Seas 8 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 5 ft.
.FRI...NW wind 20 kt. Seas 3 ft.

$$

PKZ774-021145-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
328 PM AKDT Sun Jun 1 2025

...GALE WARNING TONIGHT...

.TONIGHT...S wind 35 kt. Seas 15 ft. Rain.
.MON...SW wind 30 kt. Seas 15 ft. Rain.
.MON NIGHT...SW wind 30 kt. Seas 14 ft.
.TUE...NW wind 15 kt. Seas 11 ft.
.TUE NIGHT...N wind 15 kt. Seas 7 ft.
.WED...NW wind 15 kt. Seas 7 ft.
.THU...N wind 15 kt. Seas 6 ft.
.FRI...NW wind 20 kt. Seas 6 ft.

$$

PKZ775-021145-
Nikolski to Seguam Bering Side out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft. Rain.
.MON...SW wind 20 kt. Seas 10 ft. Rain.
.MON NIGHT...NW wind 15 kt. Seas 8 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.
.TUE NIGHT...NW wind 15 kt. Seas 5 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 5 ft.
.FRI...NW wind 20 kt. Seas 4 ft.

$$

PKZ776-021145-
Nikolski to Seguam Bering Side from 15 to 85 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...S wind 25 kt. Seas 11 ft. Rain.
.MON...S wind 15 kt becoming N in the afternoon. Seas 8 ft.
.MON NIGHT...N wind 15 kt. Seas 7 ft.
.TUE AND TUE NIGHT...NW wind 15 kt. Seas 6 ft.
.WED...W wind 15 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI...W wind 20 kt. Seas 5 ft.

$$

PKZ777-021145-
Nikolski to Seguam Pacfic Side out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 11 ft. Rain.
.MON...SW wind 25 kt. Seas 12 ft. Rain.
.MON NIGHT...NW wind 15 kt. Seas 11 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.
.TUE NIGHT...NW wind 15 kt. Seas 5 ft.
.WED THROUGH THU...NW wind 15 kt. Seas 6 ft.
.FRI...NW wind 20 kt. Seas 4 ft.

$$

PKZ778-021145-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...S wind 30 kt. Seas 13 ft. Rain.
.MON...SW wind 30 kt. Seas 15 ft. Rain.
.MON NIGHT...NW wind 25 kt diminishing to 15 kt after midnight.
Seas
13 ft.
.TUE AND TUE NIGHT...N wind 15 kt. Seas 7 ft.
.WED THROUGH THU...N wind 15 kt. Seas 6 ft.
.FRI...NW wind 20 kt. Seas 6 ft.

$$

PKZ780-021145-
Seguam to Adak Bering Side out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 10 ft. Rain.
.MON...W wind 25 kt. Seas 11 ft.
.MON NIGHT...N wind 15 kt. Seas 9 ft.
.TUE...Variable wind 10 kt. Seas 6 ft.
.TUE NIGHT...NW wind 15 kt. Seas 5 ft.
.WED...Variable wind 10 kt. Seas 4 ft.
.THU...NW wind 15 kt. Seas 3 ft.
.FRI...W wind 20 kt. Seas 2 ft.

$$

PKZ781-021145-
Seguam to Adak Bering Side from 15 to 85 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 11 ft. Rain.
.MON...NW wind 25 kt. Seas 12 ft.
.MON NIGHT...N wind 15 kt. Seas 9 ft.
.TUE AND TUE NIGHT...Variable wind 10 kt. Seas 6 ft.
.WED...Variable wind 10 kt. Seas 4 ft.
.THU...NW wind 15 kt. Seas 4 ft.
.FRI...W wind 20 kt. Seas 5 ft.

$$

PKZ782-021145-
Seguam to Adak Pacific Side out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 11 ft. Rain.
.MON...W wind 25 kt. Seas 12 ft. Rain.
.MON NIGHT...N wind 15 kt. Seas 8 ft.
.TUE...Variable wind 10 kt. Seas 5 ft.
.TUE NIGHT...N wind 15 kt. Seas 4 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 5 ft.
.FRI...W wind 20 kt. Seas 3 ft.

$$

PKZ783-021145-
Seguam to Adak Pacific Side from 15 to 75 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 13 ft. Rain.
.MON...W wind 30 kt. Seas 14 ft. Rain.
.MON NIGHT...N wind 15 kt. Seas 10 ft.
.TUE AND TUE NIGHT...N wind 15 kt. Seas 6 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 6 ft.
.FRI...W wind 20 kt. Seas 5 ft.

$$

PKZ784-021145-
Adak to Kiska Bering Side-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 12 ft.
.MON...NW wind 25 kt. Seas 14 ft.
.MON NIGHT...Variable wind 10 kt. Seas 11 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...NW wind 15 kt. Seas 4 ft.
.FRI...W wind 20 kt. Seas 4 ft.

$$

PKZ785-021145-
Adak to Kiska Pacific Side-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...W wind 30 kt. Seas 11 ft.
.MON...NW wind 30 kt diminishing to 20 kt in the afternoon. Seas
11 ft.
.MON NIGHT...Variable wind 10 kt. Seas 9 ft.
.TUE AND TUE NIGHT...Variable wind 10 kt. Seas 6 ft.
.WED...Variable wind 10 kt. Seas 6 ft.
.THU...NW wind 15 kt. Seas 6 ft.
.FRI...W wind 20 kt. Seas 6 ft.

$$

PKZ786-021145-
Kiska to Attu Bering Side-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...NW wind 30 kt. Seas 12 ft.
.MON...N wind 20 kt. Seas 13 ft.
.MON NIGHT...N wind 15 kt. Seas 11 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 5 ft.
.THU...SW wind 15 kt. Seas 4 ft.
.FRI...S wind 20 kt. Seas 7 ft.

$$

PKZ787-021145-
Kiska to Attu Pacific Side-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY NIGHT...

.TONIGHT...NW wind 25 kt. Seas 10 ft.
.MON...N wind 20 kt. Seas 11 ft.
.MON NIGHT...N wind 15 kt. Seas 10 ft.
.TUE...Variable wind 10 kt. Seas 7 ft.
.TUE NIGHT...Variable wind 10 kt. Seas 5 ft.
.WED...Variable wind 10 kt. Seas 5 ft.
.THU...E wind 20 kt. Seas 5 ft.
.FRI...S wind 20 kt. Seas 10 ft.

$$

PKZ766-021145-
Pribilof Islands Nearshore Waters-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...S wind 25 kt. Seas 10 ft.
.MON...NE wind 20 kt. Seas 7 ft.
.MON NIGHT...N wind 20 kt. Seas 7 ft.
.TUE...NW wind 20 kt. Seas 6 ft.
.TUE NIGHT...NW wind 15 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 3 ft.
.THU...Variable wind 10 kt. Seas 3 ft.
.FRI...NW wind 15 kt. Seas 4 ft.

$$

PKZ760-021145-
Bristol Bay greater than 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY MONDAY...

.TONIGHT...SE wind 20 kt. Seas 5 ft.
.MON...SE wind 30 kt. Seas 8 ft. Rain showers.
.MON NIGHT...SE wind 20 kt. Seas 6 ft. Rain showers.
.TUE AND TUE NIGHT...SW wind 15 kt. Seas 4 ft.
.WED THROUGH THU...W wind 20 kt. Seas 5 ft.
.FRI...NW wind 15 kt. Seas 4 ft.

$$

PKZ761-021145-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 4 ft.
.MON...SE wind 30 kt. Seas 4 ft.
.MON NIGHT...SE wind 25 kt. Seas 4 ft.
.TUE AND TUE NIGHT...SW wind 15 kt. Seas 3 ft.
.WED THROUGH THU...W wind 20 kt. Seas 5 ft.
.FRI...NW wind 15 kt. Seas 4 ft.

$$

PKZ762-021145-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY MONDAY AND MONDAY NIGHT...

.TONIGHT...SE wind 20 kt. Seas 4 ft.
.MON...SE wind 30 kt. Seas 6 ft. Rain.
.MON NIGHT...SE wind 25 kt. Seas 5 ft. Rain showers.
.TUE AND TUE NIGHT...SW wind 15 kt. Seas 3 ft.
.WED THROUGH THU...W wind 20 kt. Seas 4 ft.
.FRI...W wind 15 kt. Seas 3 ft.

$$

PKZ763-021145-
Kuskokwim Delta and Etolin Strait out to 15 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY MONDAY...

.TONIGHT...SE wind 20 kt. Seas 5 ft.
.MON...E wind 30 kt. Seas 5 ft. Rain showers.
.MON NIGHT...E wind 20 kt. Seas 5 ft.
.TUE...S wind 10 kt. Seas 3 ft.
.TUE NIGHT...W wind 15 kt. Seas 2 ft.
.WED...W wind 20 kt. Seas 3 ft.
.THU THROUGH FRI...W wind 15 kt. Seas 3 ft.

$$

PKZ764-021145-
Kuskokwim Delta from 15 to 80 NM-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY THROUGH MONDAY...

.TONIGHT...SE wind 20 kt. Seas 8 ft.
.MON...E wind 30 kt. Seas 8 ft. Rain.
.MON NIGHT...SE wind 20 kt. Seas 7 ft.
.TUE AND TUE NIGHT...W wind 15 kt. Seas 4 ft.
.WED THROUGH FRI...NW wind 15 kt. Seas 4 ft.

$$

PKZ765-021145-
North and West of Nunivak Island-
328 PM AKDT Sun Jun 1 2025

...SMALL CRAFT ADVISORY TONIGHT...

.TONIGHT...SE wind 30 kt diminishing to 15 kt after midnight. Seas
10 ft.
.MON...NE wind 20 kt. Seas 5 ft.
.MON NIGHT...NE wind 20 kt. Seas 6 ft.
.TUE AND TUE NIGHT...NW wind 15 kt. Seas 5 ft.
.WED THROUGH THU...W wind 15 kt. Seas 3 ft.
.FRI...NW wind 15 kt. Seas 4 ft.

$$

PKZ767-021145-
Saint Matthew Island Waters-
328 PM AKDT Sun Jun 1 2025

...GALE WARNING TONIGHT...

.TONIGHT...E of Saint Matthew Island, E wind 30 kt diminishing to
15 kt after midnight. W of Saint Matthew Island, NE wind 35 kt.
Seas
17 ft.
.MON...E wind 15 kt E of Saint Matthew Island...NE 25 kt W of
Saint
Matthew Island. Seas 12 ft.
.MON NIGHT...N wind 20 kt. Seas 7 ft.
.TUE AND TUE NIGHT...NW wind 15 kt. Seas 5 ft.
.WED...W wind 15 kt. Seas 3 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI...Variable wind 10 kt. Seas 4 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
454 PM AKDT Sat May 31 2025

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3)...

Discussion:

A weakening surface trough over Prince William Sound and
associated upper-level trough continue to slowly move off to the
east this afternoon. Lingering moisture, surface heating from
breaks in the clouds this morning, and lift from the trough, have
all allowed scattered showers to redevelop along the foothills of
the the Kenai, Chugach, and Talkeetna Mountains. These showers are
drifting slowly northward, training near Hope, along the Anchorage
Hillside, and from Willow to Talkeetna. The increased shower
activity should wind down through the evening hours as
temperatures cool and the trough exits the region.

Similar conditions are also taking place across eastern Prince
William Sound and the Copper Basin, with the bulk of the showers
firing up along the southern facing slopes of the mountains in
upslope flow. Temperatures across Southcentral have pushed into
the mid 50s for most locations, especially away from the immediate
coast, due to the diminishing cloud cover and breaks of sun.

The next feature of note is a elongated low that is dropping
southwards into the Bering Sea. This low will continue to deepen
over the Bering this weekend as a secondary low drops south and
merges with the primary low by Sunday. Modest southwesterly flow
along of this system (also noted well in water vapor imagery) will
pull a good fetch of moisture north. As the associated front lifts
across the western Gulf, moderate to heavy rain will set-up along
the eastern Alaska Peninsula, Kodiak Island, and eastern Kenai
Peninsula. In addition to heavy rainfall, winds will increase along
the front with gales and possibly storm force winds developing over
the western Gulf...including the Barren Islands and Kamishak Bay
areas. Cross-barrier flow will set-up over the Kenai and Chugach
Mountains helping to downslope the western Kenai Peninsula,
Anchorage Bowl, and Mat Valley. For these areas, little to no
rainfall is anticipated, but gusty winds are likely by Sunday
afternoon as the gradient tightens over the mountains and gap
winds turn southerly once again.

Precipitation lingers through Monday as the front stalls over
Prince William Sound. Gap winds will also persist, but will likely
be not quite as strong as the winds Sunday due to a slightly
weaker pressure gradient as the front begins to fall apart.
Another round of rain arrives for Tuesday. Measurable rainfall is
likely for interior locations with this system as the
southwesterly cross-barrier flow from the previous system weakens
and becomes southwesterly.

- PP/TM

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA/BERING SEA/ALEUTIANS (Days
1 through 3: Today through Tuesday afternoon)...

A strong North Pacific low pressure system tracking across the
eastern Aleutians this afternoon continues to deepen as it tracks
northwards into the Bering Sea. Persistent rainfall and gale-force
winds with the potential for storm-force gusts will continue this
afternoon through Sunday morning across the Alaska Peninsula as
the system continues to phase with the decaying low in the central
Bering. The strongest core of winds will reach the Southwest
coast tonight and persist through the morning hours on Sunday,
bringing onshore gale- force winds with storm-force gusts
possible. A Coastal Flood Advisory for the Kuskokwim Delta Coast
including Kwigillingok, Kongiganak, and Kipnuk remains in effect
through 9 PM Sunday night as these strong onshore winds in
combination with high tides are expected to result in water levels
1.5 to 2.5 feet above the normal highest tide line. Light rain
spreads inland with the front by Sunday morning, slowly weakening
throughout the day.

A potent upper-level shortwave dropping down on the back side of
the low will spread rain showers and gusty winds west to east
across the Aleutian Chain through tomorrow night. By Monday, the
low center tracks into the eastern Bering Sea and brings another
round of enhanced southeasterly winds and rainfall to Southwest
Alaska behind the initial front. For the Kuskokwim Delta coast,
elevated water levels are again possible during high tide Monday,
but should remain below levels of previous high tide cycles due to
weaker winds and lower tide height. Unsettled and showery weather
continues across the Alaska Peninsula and Southwest Alaska
through Tuesday morning as the low weakens and becomes quasi-
stationary near the Southwest Alaska coast.

&&

.LONG TERM FORECAST (Days 4 through 7: Wednesday through
Saturday)...

General upper level longwave troughing across the Southwest and
Aleutians will continue through the long term. This feature, along
with embedded rotating shortwaves, will continue to support
cooler and wetter than average weather conditions for much of the
state as waves of surface low pressure move across the region.
Deterministic and ensemble guidance suggest two rounds of
precipitation will impact Southcentral with a trough moving
onshore of the Gulf Coast on Tuesday and a second trough to lift
through the region on Wednesday. This will help to maintain cooler
temperatures and keep rain chances in the forecast for
Southcentral. A break from precipitation may then develop on
Thursday and more likely Friday for the region between systems,
though any clearing will present a chance for afternoon
thunderstorms.

-AM/BL

&&

.AVIATION...

PANC...VFR will generally persist through the TAF period.
Scattered showers will continue across the area today and will
gradually dissipate with the loss of heating this evening. Wind
will gradually increase today and then become gusty out of the
Southeast / Turnagain Arm this evening. Down-inlet pressure
gradient should result in northerly flow late overnight into
tomorrow morning, but there does remain a chance wind remains
southeast. Wind will increase in strength tomorrow, particularly
in the afternoon with the approach of a front and in response to
inland heating.

&&

Preliminary Local Storm Report
National Weather Service Anchorage AK
1026 PM AKDT Sat May 31 2025

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

0900 AM     Rain             5 E Valdez              61.11N 146.22W
05/31/2025  M0.03 Inch       Chugach            AK   CO-OP Observer

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