Storm Warning 88, NWS Anchorage, AK

850 
FZAK52 PAFC 102211
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
211 PM AKDT Wed Apr 10 2024

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.

PKZ199-111045-
211 PM AKDT Wed Apr 10 2024
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 964 mb East Pacific low will move east across the Bering to 330
nm southwest of Gambell at 975mb by Thu afternoon. A front will 
extend from the low, moving across the western and central 
Aleutians on Thu. The low will move inland on Fri with the front 
sweeping across the eastern Aleutians and AKPEN by Fri afternoon.

$$

PKZ750-111045-
Sitkinak to Castle Cape out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...SMALL CRAFT ADVISORY THURSDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 4 ft. Snow and rain.
.THU...S wind 20 kt. Seas 5 ft. Rain and snow.
.THU NIGHT...W wind 25 kt. Seas 7 ft.
.FRI...W wind 25 kt. Seas 7 ft.
.FRI NIGHT...NW wind 30 kt. Seas 7 ft.
.SAT THROUGH SUN...NW wind 30 kt. Seas 6 ft.
.MON...NW wind 25 kt. Seas 4 ft.

$$

PKZ751-111045-
Sitkinak to Castle Cape from 15 to 100 NM-
211 PM AKDT Wed Apr 10 2024

...SMALL CRAFT ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 5 ft. Snow and rain.
.THU...SW wind 30 kt. Seas 10 ft. Rain.
.THU NIGHT...W wind 30 kt. Seas 13 ft.
.FRI AND FRI NIGHT...W wind 30 kt. Seas 12 ft.
.SAT...NW wind 30 kt. Seas 12 ft.
.SUN...NW wind 30 kt. Seas 8 ft.
.MON...NE wind 25 kt. Seas 9 ft.

$$

PKZ752-111045-
Castle Cape to Cape Tolstoi out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...SMALL CRAFT ADVISORY THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SW wind 20 kt. Seas 3 ft. Snow.
.THU...SW wind 25 kt. Seas 4 ft.
.THU NIGHT...W wind 30 kt. Seas 5 ft.
.FRI AND FRI NIGHT...NW wind 25 kt. Seas 5 ft.
.SAT...NW wind 30 kt. Seas 4 ft.
.SUN...NW wind 20 kt. Seas 2 ft.
.MON...NE wind 20 kt. Seas 5 ft.

$$

PKZ753-111045-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
211 PM AKDT Wed Apr 10 2024

...SMALL CRAFT ADVISORY THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 25 kt. Seas 10 ft. Snow.
.THU...SW wind 30 kt. Seas 13 ft. Rain.
.THU NIGHT...W wind 30 kt. Seas 15 ft.
.FRI AND FRI NIGHT...NW wind 30 kt. Seas 13 ft.
.SAT...NW wind 30 kt. Seas 10 ft.
.SUN...NW wind 25 kt. Seas 6 ft.
.MON...NE wind 30 kt. Seas 11 ft.

$$

PKZ754-111045-
Cape Tolstoi to Cape Sarichef out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 8 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.THU NIGHT...W wind 35 kt. Seas 10 ft.
.FRI AND FRI NIGHT...NW wind 25 kt. Seas 8 ft.
.SAT...NW wind 25 kt. Seas 5 ft.
.SUN...NW wind 20 kt. Seas 3 ft.
.MON...NE wind 25 kt. Seas 7 ft.

$$

PKZ755-111045-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING TONIGHT AND THURSDAY NIGHT...

.TONIGHT...W wind 35 kt. Seas 13 ft.
.THU...SW wind 30 kt. Seas 15 ft.
.THU NIGHT...W wind 35 kt. Seas 15 ft.
.FRI AND FRI NIGHT...NW wind 30 kt. Seas 12 ft.
.SAT...NW wind 30 kt. Seas 10 ft.
.SUN...N wind 25 kt. Seas 5 ft.
.MON...NE wind 35 kt. Seas 13 ft.

$$

PKZ756-111045-
Port Heiden to Nelson Lagoon out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 7 ft. Rain and snow.
.THU...SW wind 30 kt. Seas 8 ft.
.THU NIGHT...SW wind 35 kt. Seas 13 ft. Widespread snow and rain
showers.
.FRI...W wind 30 kt. Seas 13 ft.
.FRI NIGHT...NW wind 30 kt. Seas 9 ft.
.SAT...NW wind 30 kt. Seas 7 ft.
.SUN...NW wind 20 kt. Seas 4 ft.
.MON...N wind 20 kt. Seas 3 ft.

$$

PKZ757-111045-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 13 ft. Rain and snow.
.THU...SW wind 25 kt increasing to 35 kt in the afternoon. Seas
14 ft.
.THU NIGHT...SW wind 40 kt. Seas 17 ft. Widespread snow showers.
.FRI...W wind 30 kt. Seas 16 ft.
.FRI NIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...NW wind 30 kt. Seas 10 ft.
.SUN...W wind 25 kt. Seas 5 ft.
.MON...N wind 20 kt. Seas 4 ft.

$$

PKZ758-111045-
Nelson Lagoon to Cape Sarichef out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 13 ft. Rain.
.THU...SW wind 35 kt. Seas 14 ft.
.THU NIGHT...SW wind 40 kt. Seas 16 ft. Widespread rain showers.
.FRI...W wind 30 kt. Seas 16 ft.
.FRI NIGHT...NW wind 30 kt. Seas 11 ft.
.SAT...NW wind 30 kt. Seas 8 ft.
.SUN...NW wind 20 kt. Seas 5 ft.
.MON...NE wind 20 kt. Seas 4 ft.

$$

PKZ759-111045-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas 16 ft. Rain.
.THU...SW wind 30 kt increasing to 40 kt in the afternoon. Seas
18 ft.
.THU NIGHT...SW wind 40 kt. Seas 20 ft. Widespread snow showers.
.FRI...W wind 30 kt. Seas 17 ft.
.FRI NIGHT...NW wind 30 kt. Seas 12 ft.
.SAT...NW wind 30 kt. Seas 10 ft.
.SUN...NW wind 20 kt. Seas 5 ft.
.MON...NE wind 20 kt. Seas 4 ft.

$$

PKZ770-111045-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. Seas
15 ft.
.THU...SW wind 35 kt. Seas 16 ft.
.THU NIGHT...W wind 40 kt diminishing to 30 kt after midnight.
Seas 19 ft.
.FRI...W wind 25 kt. Seas 17 ft.
.FRI NIGHT...NW wind 25 kt. Seas 12 ft.
.SAT...NW wind 25 kt. Seas 8 ft.
.SUN...NW wind 20 kt. Seas 4 ft.
.MON...NE wind 25 kt. Seas 4 ft.

$$

PKZ772-111045-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 35 kt. Seas 19 ft.
.THU...SW wind 40 kt. Seas 22 ft.
.THU NIGHT...W wind 40 kt diminishing to 30 kt after midnight.
Seas 23 ft. Snow showers and rain showers.
.FRI...NW wind 25 kt. Seas 18 ft.
.FRI NIGHT...NW wind 25 kt. Seas 12 ft.
.SAT...W wind 25 kt. Seas 9 ft.
.SUN...NW wind 20 kt. Seas 5 ft.
.MON...NE wind 25 kt. Seas 6 ft.

$$

PKZ771-111045-
Unalaska Bay-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt diminishing to 20 kt after midnight. Seas
4 ft subsiding to 2 ft after midnight.
.THU...SW wind 20 kt becoming W 30 kt in the afternoon. Seas 2 ft
building to 5 ft in the afternoon.
.THU NIGHT...W wind 35 kt. Seas 5 ft.
.FRI AND FRI NIGHT...NW wind 20 kt. Seas 6 ft.
.SAT...NW wind 20 kt. Seas 7 ft.
.SUN...NW wind 10 kt. Seas 3 ft.
.MON...NE wind 15 kt. Seas 3 ft.

$$

PKZ773-111045-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 35 kt. Seas 14 ft.
.THU...SW wind 30 kt. Seas 13 ft.
.THU NIGHT...W wind 30 kt. Seas 12 ft.
.FRI AND FRI NIGHT...NW wind 25 kt. Seas 9 ft.
.SAT...NW wind 25 kt. Seas 6 ft.
.SUN...N wind 20 kt. Seas 3 ft.
.MON...NE wind 30 kt. Seas 8 ft.

$$

PKZ774-111045-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 40 kt. Seas 16 ft. Rain.
.THU...W wind 35 kt. Seas 16 ft.
.THU NIGHT...W wind 35 kt. Seas 16 ft.
.FRI AND FRI NIGHT...NW wind 25 kt. Seas 12 ft.
.SAT...NW wind 25 kt. Seas 9 ft.
.SUN...N wind 25 kt. Seas 5 ft.
.MON...NE wind 35 kt. Seas 13 ft.

$$

PKZ775-111045-
Nikolski to Seguam Bering Side out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. Seas
17 ft.
.THU...W wind 35 kt. Seas 18 ft.
.THU NIGHT...W wind 30 kt. Seas 18 ft. Rain showers and snow
showers.
.FRI...W wind 25 kt. Seas 14 ft.
.FRI NIGHT...NW wind 20 kt. Seas 9 ft.
.SAT...W wind 20 kt. Seas 7 ft.
.SUN...N wind 15 kt. Seas 4 ft.
.MON...NE wind 20 kt. Seas 8 ft.

$$

PKZ776-111045-
Nikolski to Seguam Bering Side from 15 to 85 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY NIGHT...

.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. Seas
19 ft.
.THU...W wind 40 kt. Seas 23 ft.
.THU NIGHT...W wind 35 kt. Seas 22 ft. Snow showers and rain
showers.
.FRI...W wind 25 kt. Seas 15 ft.
.FRI NIGHT...NW wind 20 kt. Seas 10 ft.
.SAT...W wind 20 kt. Seas 8 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.
.MON...NE wind 20 kt. Seas 8 ft.

$$

PKZ777-111045-
Nikolski to Seguam Pacfic Side out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt. Seas 17 ft.
.THU...W wind 35 kt. Seas 16 ft.
.THU NIGHT...W wind 30 kt. Seas 16 ft.
.FRI...W wind 25 kt. Seas 12 ft.
.FRI NIGHT...NW wind 20 kt. Seas 8 ft.
.SAT...NW wind 20 kt. Seas 7 ft.
.SUN...NE wind 20 kt. Seas 4 ft.
.MON...NE wind 25 kt. Seas 10 ft.

$$

PKZ778-111045-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt. Seas 18 ft. Rain.
.THU...SW wind 30 kt. Seas 17 ft.
.THU NIGHT...W wind 30 kt. Seas 17 ft.
.FRI...W wind 25 kt. Seas 14 ft.
.FRI NIGHT...NW wind 20 kt. Seas 10 ft.
.SAT...N wind 20 kt. Seas 8 ft.
.SUN...NE wind 25 kt. Seas 5 ft.
.MON...NE wind 30 kt. Seas 12 ft.

$$

PKZ780-111045-
Seguam to Adak Bering Side out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. Seas
13 ft.
.THU...SW wind 35 kt. Seas 16 ft.
.THU NIGHT...W wind 30 kt. Seas 14 ft.
.FRI...W wind 20 kt. Seas 10 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 7 ft.
.SAT...Variable wind 10 kt. Seas 6 ft.
.SUN THROUGH MON...E wind 15 kt. Seas 5 ft.

$$

PKZ781-111045-
Seguam to Adak Bering Side from 15 to 85 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt. Seas 18 ft.
.THU...SW wind 40 kt. Seas 22 ft. Rain showers.
.THU NIGHT...W wind 30 kt. Seas 18 ft subsiding to 13 ft after
midnight.
.FRI...W wind 20 kt. Seas 12 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 8 ft.
.SAT...S wind 15 kt. Seas 7 ft.
.SUN...SE wind 20 kt. Seas 4 ft.
.MON...SE wind 20 kt. Seas 8 ft.

$$

PKZ782-111045-
Seguam to Adak Pacific Side out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt diminishing to 30 kt after midnight. Seas
16 ft.
.THU...W wind 35 kt. Seas 15 ft.
.THU NIGHT...W wind 30 kt. Seas 14 ft.
.FRI...W wind 20 kt. Seas 10 ft.
.FRI NIGHT...Variable wind 10 kt. Seas 7 ft.
.SAT...Variable wind 10 kt. Seas 5 ft.
.SUN...E wind 15 kt. Seas 5 ft.
.MON...E wind 20 kt. Seas 12 ft.

$$

PKZ783-111045-
Seguam to Adak Pacific Side from 15 to 75 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt. Seas 19 ft. Rain.
.THU...W wind 35 kt. Seas 17 ft.
.THU NIGHT...W wind 30 kt. Seas 16 ft.
.FRI...W wind 25 kt. Seas 13 ft.
.FRI NIGHT...W wind 15 kt. Seas 9 ft.
.SAT...S wind 15 kt. Seas 8 ft.
.SUN...E wind 20 kt. Seas 5 ft.
.MON...NE wind 25 kt. Seas 12 ft.

$$

PKZ784-111045-
Adak to Kiska Bering Side-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 45 kt. Seas 23 ft.
.THU...W wind 40 kt. Seas 23 ft.
.THU NIGHT...W wind 25 kt. Seas 14 ft.
.FRI...W wind 20 kt. Seas 10 ft.
.FRI NIGHT...SW wind 20 kt. Seas 8 ft.
.SAT...SE wind 20 kt. Seas 7 ft.
.SUN...SE wind 35 kt. Seas 5 ft.
.MON...SE wind 35 kt. Seas 10 ft.

$$

PKZ785-111045-
Adak to Kiska Pacific Side-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt. Seas 19 ft.
.THU...W wind 35 kt. Seas 21 ft.
.THU NIGHT...W wind 30 kt. Seas 18 ft.
.FRI...W wind 20 kt. Seas 14 ft.
.FRI NIGHT...SW wind 20 kt. Seas 9 ft.
.SAT...SE wind 20 kt. Seas 8 ft.
.SUN...SE wind 35 kt. Seas 6 ft.
.MON...SE wind 35 kt. Seas 13 ft.

$$

PKZ786-111045-
Kiska to Attu Bering Side-
211 PM AKDT Wed Apr 10 2024

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 50 kt. Seas 30 ft.
.THU...W wind 35 kt. Seas 21 ft.
.THU NIGHT...NW wind 25 kt. Seas 14 ft.
.FRI...SW wind 20 kt. Seas 10 ft.
.FRI NIGHT...S wind 20 kt. Seas 8 ft.
.SAT...SE wind 20 kt. Seas 6 ft.
.SUN THROUGH MON...SE wind 45 kt. Seas 9 ft.

$$

PKZ787-111045-
Kiska to Attu Pacific Side-
211 PM AKDT Wed Apr 10 2024

...STORM WARNING TONIGHT...

.TONIGHT...SW wind 50 kt becoming W 40 kt after midnight. Seas
28 ft.
.THU...W wind 35 kt. Seas 24 ft.
.THU NIGHT...W wind 25 kt. Seas 16 ft.
.FRI...SW wind 15 kt. Seas 12 ft.
.FRI NIGHT...S wind 25 kt. Seas 9 ft.
.SAT...S wind 25 kt. Seas 8 ft.
.SUN...SE wind 45 kt. Seas 7 ft.
.MON...SE wind 45 kt. Seas 13 ft.

$$

PKZ766-111045-
Pribilof Islands Nearshore Waters-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 35 kt. Seas 19 ft.
.THU...SW wind 45 kt. Seas 24 ft. Snow showers and rain showers.
.THU NIGHT...W wind 30 kt. Seas 22 ft subsiding to 17 ft after
midnight. Freezing spray.
.FRI...NW wind 25 kt. Seas 14 ft.
.FRI NIGHT...W wind 15 kt. Seas 9 ft.
.SAT THROUGH SUN...SW wind 20 kt. Seas 8 ft.
.MON...S wind 20 kt. Seas 9 ft.

$$

PKZ760-111045-
Bristol Bay greater than 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas in ice free waters 9 ft. Snow and
rain.
.THU...SW wind 30 kt. Seas in ice free waters 10 ft.
.THU NIGHT...SW wind 35 kt. Seas in ice free waters 14 ft. Snow
showers.
.FRI AND FRI NIGHT...NW wind 30 kt. Seas in ice free waters 12 ft.
.SAT...NW wind 30 kt. Seas in ice free waters 7 ft.
.SUN...W wind 25 kt. Seas in ice free waters 4 ft.
.MON...W wind 20 kt. Seas in ice free waters 3 ft.

$$

PKZ761-111045-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas 5 ft. Snow and rain.
.THU...SW wind 30 kt. Seas 6 ft. Rain with snow.
.THU NIGHT...SW wind 35 kt. Seas 9 ft. Widespread snow and rain
showers.
.FRI AND FRI NIGHT...NW wind 30 kt. Seas 8 ft.
.SAT...W wind 30 kt. Seas 6 ft.
.SUN...W wind 25 kt. Seas 3 ft.
.MON...W wind 15 kt. Seas 2 ft.

$$

PKZ762-111045-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY NIGHT...

.TONIGHT...S wind 25 kt. Seas in ice free waters 4 ft. Snow and
light freezing rain.
.THU...SW wind 30 kt. Seas in ice free waters 4 ft. Snow and rain.
.THU NIGHT...SW wind 35 kt. Seas in ice free waters 5 ft.
Widespread snow showers. Freezing spray.
.FRI AND FRI NIGHT...NW wind 30 kt. Seas in ice free waters 2 ft.
.SAT...NW wind 25 kt. Seas in ice free waters 1 foot.
.SUN THROUGH MON...W wind 20 kt. Seas in ice free waters 1 foot.

$$

PKZ763-111045-
Kuskokwim Delta and Etolin Strait out to 15 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas in ice free waters 3 ft. Snow and
rain.
.THU...SW wind 35 kt. Seas in ice free waters 3 ft. Widespread
snow showers.
.THU NIGHT...SW wind 35 kt. Seas in ice free waters 3 ft.
.FRI AND FRI NIGHT...NW wind 25 kt. Seas in ice free waters 2 ft.
.SAT...W wind 25 kt. Seas in ice free waters 2 ft.
.SUN THROUGH MON...SW wind 30 kt. Seas in ice free waters 1 foot.

$$

PKZ764-111045-
Kuskokwim Delta from 15 to 80 NM-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THURSDAY AND THURSDAY NIGHT...

.TONIGHT...SW wind 30 kt. Seas in ice free waters 10 ft. Snow.
.THU...SW wind 40 kt. Seas in ice free waters 13 ft. Snow showers.
.THU NIGHT...W wind 35 kt. Seas in ice free waters 15 ft. Freezing
spray.
.FRI...NW wind 30 kt. Seas in ice free waters 14 ft.
.FRI NIGHT...W wind 30 kt. Seas in ice free waters 9 ft.
.SAT...W wind 30 kt. Seas in ice free waters 8 ft.
.SUN THROUGH MON...SW wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ765-111045-
North and West of Nunivak Island-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 35 kt. Rain and snow.
.THU...SW wind 35 kt. Widespread snow showers.
.THU NIGHT...NW wind 30 kt.
.FRI...W wind 20 kt.
.FRI NIGHT...W wind 15 kt.
.SAT...SW wind 25 kt.
.SUN THROUGH MON...S wind 30 kt.

$$

PKZ767-111045-
Saint Matthew Island Waters-
211 PM AKDT Wed Apr 10 2024

...GALE WARNING THROUGH THURSDAY...

.TONIGHT...SW wind 40 kt. Seas in ice free waters 18 ft.
Widespread snow showers. Freezing spray.
.THU...W wind 35 kt. Seas in ice free waters 20 ft. Freezing
spray.
.THU NIGHT...NW wind 30 kt. Seas in ice free waters 15 ft.
Freezing spray.
.FRI...W wind 25 kt. Seas in ice free waters 10 ft.
.FRI NIGHT...SW wind 30 kt. Seas in ice free waters 9 ft.
.SAT...SW wind 30 kt. Seas in ice free waters 9 ft.
.SUN...SW wind 35 kt. Seas in ice free waters 9 ft.
.MON...S wind 30 kt. Seas in ice free waters 12 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
413 PM AKDT Tue Apr 9 2024

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3:
Today through Thursday night)...

An arctic trough extends from the North Slope south to the Alaska
Peninsula this afternoon. This trough is anchored by an upper-
level low situated over Kodiak Island. A compact surface low
pressure system continues to drive inland over the Kenai
Peninsula, producing another round of instability driven moderate
to heavy snow showers. Total snow accumulations through tonight of
several inches are expected from Seward to Whittier and Girdwood,
with snowfall rates approaching 1 to 2 inches per hour. A Special
Weather Statement is out for these areas. Total snow
accumulations will be tricky given the timing of the snow during
the day and temperatures right around freezing may limit
accumulations on area roads, with accumulations highly dependent
on snowfall rates. Scattered snow showers across the western Kenai
and the Anchorage Bowl will continue through early tonight with
light accumulations possible. Snow showers will also continue from
Cordova to Valdez, with the highest amounts in the mountains
surrounding both communities.

The upper-level low begins to weaken as it slides southeast on
Wednesday. Weaker and more compact surfaces lows will continue to
spin around in the gulf, and with influence from the upper low,
scattered snow showers will continue along the immediate coast.
Skies will clear out later on Wednesday for Cook Inlet up through
the Susitna Valley as a weak upper ridge briefly builds in from
the west.

A frontal system will push in Southwest Alaska Wednesday,
reaching the Cook Inlet and Susitna Valley area by Thursday
morning. Moist southwesterly flow and vorticity advection will
allow light snow to overspread the area, but downsloping will
quickly develop for locations in the lee of the coastal mountains
as low level southeasterly flow develops east of the new triple
point low. Multiple shortwave troughs and surface troughs embedded
within the main longwave trough will move in behind the initial
front for late Thursday into Friday. Colder air and a more
southwesterly flow ahead of the main trough axis will allow
precipitation to fill back in by late Thursday afternoon or
evening. Despite cold air aloft supporting snow, any snow
accumulation will be dependent on surface winds and temperatures,
especially during the day. Regardless, the coastal mountains will
see significant snow accumulation with this system. With a more
persistent southerly flow across the Susitna Valley, places like
Hatcher Pass and Broad Pass will also likely see significant snow
accumulations Thursday into Friday. A Winter Storm Watch has been
issued for north of Talkeetna, including Broad Pass, for Thursday
into Friday where upwards of 12" of snow is possible.
Precipitation will likely linger through Friday, possibly
including Anchorage as well, as the triple point low moves into
the western Prince William Sound.

-ME

&&

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

On satellite imagery (CIMSS MIMIC PW) there is fetch of Pacific
moisture that extends from Kamchatka to the Pribilof Islands.
Looking at Himawari (Airmass RGB) this moisture fetch is going
around a dome of high pressure to the east of it. One surface low
is actually over Kamchatka and the other surface low is over NE
Russia. Meanwhile the center of circulation for a 1042 mb high is
approximately 450 NM south-southwest of Adak but this feature is
clearly influencing that path of the moisture in the Bering.
Cold air will continue to filter south across Southwest Alaska and
eastern Bering/Alaska Peninsula. Gap winds south of the AKPen
will continue to be gusty through this afternoon and will
gradually diminish through tonight.

Snow and winds reach the Southwest coast early Wednesday morning
and increase significantly. A Blizzard Warning has been issued
for the Kuskokwim Delta, from Bethel west, for Wednesday, as wind
gusts are expected to increase to 50 mph and snow accumulation
will range from 7 to 10 inches. A Winter Weather Advisory for Snow
and Blowing Snow has been issued for the Western Capes of Bristol
Bay, including Togiak and Twin Hill for Wednesday as well, with
snow accumulations of 9 to 13 inches and wind gusts to 40 mph. The
warm air will eventually reach Southwest Alaska, however, snow
intensity is anticipated to be high enough to overcome
temperatures increasing to 33/34 degrees. The immediate coast is
the most likely to see transitions to rain during warmest
temperatures. Snow continues tracking inland by early Thursday and
values of 4 to 7 inches is possible across the lower Kuskokwim
Valley and interior portions of Bristol Bay.

&&

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

By Saturday morning, a deep upper-level trough will be moving
east over Southcentral Alaska, with weak ridging building over
the central Bering. This would lead to a widespread showery
pattern over the northern Gulf of Alaska and relatively calm
conditions over the Bering and Aleutians early this weekend. The
upper low and its attendant surface low will exit into Southeast
Alaska on Sunday. This will lead into a fairly benign pattern
across much of southern Alaska as the ridge once over the Bering,
shifts over our region, allowing for clearer skies and weak winds
across the area. By Tuesday morning, multiple low pressure systems
will approach the Chain from the northern Pacific. Model
agreement regarding the breakdown of a ridge is usually poor, and
remains so in this case, but either way, a significant shift in
pattern does not seem evident. A prolonged break in active weather
seems most likely currently for the latter portion of this
weekend into early next week.

-CL

&&

.AVIATION...

PANC...VFR conditions will be predominate, but there will be snow
showers in the vicinity which could include brief periods of lower
ceilings and visibility. Gusty easterly to northeasterly winds
ongoing this afternoon in response to mesolow tracking across the
southern Kenai Peninsula. There may be a brief period of winds
off of Turnagain Arm this evening, with higher confidence of
becoming lighter and turning from a northerly direction by
midnight. The Turnagain Arm winds will return late Wednesday into
Thursday.

MTL/PP

&&