Storm Warning 26, NWS Anchorage, AK

400 
FZAK52 PAFC 211310
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
410 AM AKST Tue Jan 21 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.

PKZ199-211415-
410 AM AKST Tue Jan 21 2025
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A 988 mb low 30 nm southeast of Sand Point moves to 150 nm north 
of Sand Point at 987 mb Tue evening, then moves inland over 
Southwest Alaska Wed morning. A 983mb low 220 nm west of Shemya 
Tue evening moves to 400 nm east of Shemya Wed evening then 
dissipates.

$$

PKZ750-211415-
Sitkinak to Castle Cape out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TODAY...

.TODAY...SE wind 35 kt becoming S 25 kt in the afternoon. Seas 14 ft. Rain.
.TONIGHT...SE wind 25 kt. Seas 10 ft. Rain.
.WED...SW wind 30 kt. Seas 8 ft.
.WED NIGHT...SW wind 40 kt. Seas 14 ft.
.THU...S wind 35 kt. Seas 14 ft.
.FRI THROUGH SAT...S wind 40 kt. Seas 13 ft.

$$

PKZ751-211415-
Sitkinak to Castle Cape from 15 to 100 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING WEDNESDAY...

.TODAY...S wind 25 kt. Seas 17 ft. Rain.
.TONIGHT...S wind 30 kt. Seas 14 ft.
.WED...W wind 35 kt. Seas 15 ft.
.WED NIGHT...SW wind 40 kt. Seas 17 ft.
.THU...S wind 40 kt. Seas 17 ft.
.FRI...SE wind 45 kt. Seas 21 ft.
.SAT...S wind 40 kt. Seas 21 ft.

$$

PKZ752-211415-
Castle Cape to Cape Tolstoi out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TONIGHT...

.TODAY...S wind 30 kt. Seas 13 ft. Rain.
.TONIGHT...SW wind 25 kt becoming W 35 kt after midnight. Seas 11 ft. Rain.
.WED...W wind 30 kt. Seas 8 ft.
.WED NIGHT...SW wind 40 kt. Seas 13 ft.
.THU THROUGH FRI...SE wind 40 kt. Seas 13 ft.
.SAT...S wind 30 kt. Seas 13 ft.

$$

PKZ753-211415-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TONIGHT...

.TODAY...S wind 30 kt. Seas 15 ft.
.TONIGHT...SW wind 35 kt. Seas 16 ft. Rain.
.WED...W wind 30 kt. Seas 16 ft.
.WED NIGHT...SW wind 45 kt. Seas 20 ft.
.THU THROUGH SAT...S wind 40 kt. Seas 22 ft.

$$

PKZ754-211415-
Cape Tolstoi to Cape Sarichef out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...SW wind 20 kt becoming W 30 kt in the afternoon. 
Seas 8 ft. Rain and snow.
.TONIGHT...W wind 35 kt. Seas 8 ft. Snow and rain.
.WED...SW wind 25 kt becoming S 40 kt in the afternoon. 
Seas 7 ft building to 12 ft in the afternoon. Rain.
.WED NIGHT...SW wind 45 kt. Seas 19 ft.
.THU...S wind 45 kt. Seas 17 ft.
.FRI...SE wind 40 kt. Seas 18 ft.
.SAT...NW wind 25 kt. Seas 10 ft.

$$

PKZ755-211415-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...SW wind 25 kt increasing to 40 kt in the afternoon. 
Seas 14 ft. Rain and snow.
.TONIGHT...W wind 40 kt. Seas 17 ft.
.WED...SW wind 30 kt increasing to 40 kt in the afternoon. 
Seas 13 ft. Rain.
.WED NIGHT...SW wind 50 kt. Seas 22 ft.
.THU...S wind 45 kt. Seas 25 ft.
.FRI...SE wind 40 kt. Seas 25 ft.
.SAT...W wind 40 kt. Seas 19 ft.

$$

PKZ756-211415-
Port Heiden to Nelson Lagoon out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TONIGHT...

.TODAY...SE wind 25 kt. Seas 4 ft. Rain.
.TONIGHT...S wind 25 kt becoming W 35 kt after midnight. 
Seas 5 ft building to 13 ft after midnight. Rain and snow.
.WED...W wind 30 kt. Seas 11 ft.
.WED NIGHT...S wind 35 kt. Seas 9 ft.
.THU...S wind 45 kt. Seas 12 ft.
.FRI...SE wind 40 kt. Seas 12 ft.
.SAT...N wind 25 kt. Seas 10 ft.

$$

PKZ757-211415-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...E wind 30 kt. Seas 8 ft.
.TONIGHT...W wind 35 kt. Seas 7 ft building to 15 ft after midnight.Rain.
.WED...W wind 35 kt. Seas 14 ft subsiding to 9 ft in the afternoon.
.WED NIGHT...S wind 40 kt. Seas 14 ft.
.THU...S wind 50 kt. Seas 20 ft.
.FRI...SE wind 45 kt. Seas 20 ft.
.SAT...NW wind 25 kt. Seas 11 ft.

$$

PKZ758-211415-
Nelson Lagoon to Cape Sarichef out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...SW wind 15 kt becoming W 35 kt in the afternoon. 
Seas 5 ft building to 13 ft in the afternoon. Rain and snow.
.TONIGHT...W wind 35 kt. Seas 15 ft. Rain with snow.
.WED...SW wind 25 kt becoming S 40 kt in the afternoon. Seas 10 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 12 ft.
.THU THROUGH FRI...SE wind 45 kt. Seas 12 ft.
.SAT...NW wind 25 kt. Seas 10 ft.

$$

PKZ759-211415-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...E wind 20 kt becoming W 35 kt in the afternoon. 
Seas 6 ft building to 14 ft in the afternoon. Rain and snow.
.TONIGHT...W wind 40 kt. Seas 15 ft. Rain.
.WED...SW wind 25 kt becoming S 40 kt in the afternoon. Seas 11 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 17 ft.
.THU...S wind 55 kt. Seas 23 ft.
.FRI...SE wind 50 kt. Seas 19 ft.
.SAT...NW wind 30 kt. Seas 10 ft.

$$

PKZ770-211415-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 40 kt. Seas 15 ft. Snow.
.TONIGHT...W wind 35 kt becoming SW 25 kt after midnight. Seas 15 ft.
.WED...S wind 45 kt. Seas 11 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 12 ft.
.THU...S wind 55 kt. Seas 15 ft.
.FRI THROUGH SAT...NW wind 40 kt. Seas 12 ft.

$$

PKZ772-211415-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 40 kt. Seas 15 ft. Rain and snow.
.TONIGHT...W wind 40 kt becoming SW 25 kt after midnight. Seas 15 ft.
.WED...S wind 45 kt. Seas 11 ft building to 16 ft in the afternoon. Rain.
.WED NIGHT...SW wind 45 kt. Seas 19 ft.
.THU...S wind 55 kt. Seas 26 ft.
.FRI...W wind 40 kt. Seas 20 ft.
.SAT...NW wind 30 kt. Seas 11 ft.

$$

PKZ771-211415-
Unalaska Bay-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH TONIGHT...

.TODAY...NW wind 35 kt. Gusts to 45 kt. Seas 10 ft building to 14 ft
in the afternoon. Snow.
.TONIGHT...W wind 35 kt diminishing to 20 kt after midnight. Gusts to
45 kt before midnight. Seas 12 ft subsiding to 3 ft after midnight. 
Rain showers.
.WED...S wind 20 kt increasing to 30 kt in the afternoon. Seas 4 ft. Rain.
.WED NIGHT...SW wind 30 kt. Seas 5 ft.
.THU...S wind 40 kt. Seas 6 ft.
.FRI...W wind 25 kt. Seas 7 ft.
.SAT...NW wind 30 kt. Seas 9 ft.

$$

PKZ773-211415-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 40 kt. Seas 10 ft. Snow.
.TONIGHT...W wind 40 kt becoming SW 25 kt after midnight. Seas 10 ft.
.WED...SW wind 45 kt. Seas 11 ft building to 18 ft in the afternoon. Rain.
.WED NIGHT...SW wind 45 kt. Seas 21 ft.
.THU...S wind 55 kt. Seas 26 ft.
.FRI...NW wind 40 kt. Seas 22 ft.
.SAT...NW wind 35 kt. Seas 10 ft.

$$

PKZ774-211415-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
410 AM AKST Tue Jan 21 2025

...STORM WARNING WEDNESDAY...

.TODAY...NW wind 40 kt. Seas 14 ft.  and rain.
.TONIGHT...W wind 40 kt diminishing to 30 kt after midnight. Seas 15 ft.
.WED...SW wind 40 kt increasing to 50 kt in the afternoon. 
Seas 13 ft building to 20 ft in the afternoon. Rain.
.WED NIGHT...SW wind 50 kt. Seas 24 ft.
.THU...S wind 55 kt. Seas 33 ft.
.FRI...W wind 40 kt. Seas 27 ft.
.SAT...NW wind 35 kt. Seas 14 ft.

$$

PKZ775-211415-
Nikolski to Seguam Bering Side out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 35 kt. Seas 16 ft.
.TONIGHT...W wind 25 kt becoming SW 35 kt after midnight. 
Seas 10 ft. Rain.
.WED...S wind 45 kt. Seas 17 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 18 ft.
.THU...S wind 60 kt. Seas 30 ft.
.FRI...NW wind 35 kt. Seas 20 ft.
.SAT...W wind 35 kt. Seas 11 ft.

$$

PKZ776-211415-
Nikolski to Seguam Bering Side from 15 to 85 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 35 kt. Seas 15 ft.
.TONIGHT...SW wind 25 kt increasing to 35 kt after midnight. 
Seas 10 ft. Rain.
.WED...SW wind 45 kt. Seas 18 ft. Rain.
.WED NIGHT...SW wind 45 kt. Seas 20 ft.
.THU...S wind 60 kt. Seas 29 ft.
.FRI...NW wind 35 kt. Seas 20 ft.
.SAT...W wind 35 kt. Seas 14 ft.

$$

PKZ777-211415-
Nikolski to Seguam Pacfic Side out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...NW wind 40 kt. Seas 15 ft.
.TONIGHT...SW wind 35 kt. Seas 11 ft. Rain.
.WED...S wind 45 kt. Seas 21 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 22 ft.
.THU...S wind 60 kt. Seas 34 ft.
.FRI...NW wind 35 kt. Seas 22 ft.
.SAT...W wind 40 kt. Seas 11 ft.

$$

PKZ778-211415-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
410 AM AKST Tue Jan 21 2025

...STORM WARNING WEDNESDAY...

.TODAY...NW wind 40 kt. Seas 18 ft.
.TONIGHT...SW wind 35 kt. Seas 12 ft. Rain.
.WED...SW wind 50 kt. Seas 23 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 23 ft.
.THU...S wind 60 kt. Seas 36 ft.
.FRI...NW wind 40 kt. Seas 23 ft.
.SAT...W wind 40 kt. Seas 14 ft.

$$

PKZ780-211415-
Seguam to Adak Bering Side out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...W wind 30 kt. Seas 12 ft. Rain and snow.
.TONIGHT...S wind 35 kt. Seas 9 ft. Rain.
.WED...SW wind 45 kt. Seas 11 ft. Rain.
.WED NIGHT...S wind 35 kt. Seas 10 ft.
.THU...W wind 50 kt. Seas 17 ft.
.FRI THROUGH SAT...W wind 30 kt. Seas 11 ft.

$$

PKZ781-211415-
Seguam to Adak Bering Side from 15 to 85 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...W wind 30 kt. Seas 12 ft. Rain and snow.
.TONIGHT...S wind 35 kt. Seas 13 ft. Rain.
.WED...SW wind 45 kt. Seas 16 ft. Rain.
.WED NIGHT...SW wind 40 kt. Seas 15 ft.
.THU...NW wind 50 kt. Seas 19 ft.
.FRI THROUGH SAT...W wind 30 kt. Seas 14 ft.

$$

PKZ782-211415-
Seguam to Adak Pacific Side out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TONIGHT AND WEDNESDAY...

.TODAY...W wind 30 kt. Seas 9 ft. Rain and snow.
.TONIGHT...SW wind 30 kt becoming S 40 kt after midnight. 
Seas 14 ft. Rain.
.WED...SW wind 45 kt. Seas 23 ft. Rain.
.WED NIGHT...S wind 35 kt. Seas 20 ft.
.THU...W wind 55 kt. Seas 31 ft.
.FRI...NW wind 35 kt. Seas 18 ft.
.SAT...W wind 30 kt. Seas 8 ft.

$$

PKZ783-211415-
Seguam to Adak Pacific Side from 15 to 75 NM-
410 AM AKST Tue Jan 21 2025

...STORM WARNING WEDNESDAY...

.TODAY...W wind 35 kt. Seas 12 ft.
.TONIGHT...S wind 40 kt. Seas 13 ft building to 18 ft after midnight. Rain.
.WED...SW wind 50 kt. Seas 25 ft. Rain.
.WED NIGHT...S wind 45 kt. Seas 23 ft.
.THU...SW wind 55 kt. Seas 33 ft.
.FRI...NW wind 35 kt. Seas 20 ft.
.SAT...W wind 35 kt. Seas 12 ft.

$$

PKZ784-211415-
Adak to Kiska Bering Side-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...SW wind 35 kt. Seas 13 ft. Rain and snow.
.TONIGHT...S wind 35 kt. Seas 13 ft. Widespread rain showers.
.WED...SW wind 40 kt. Seas 16 ft.
.WED NIGHT...NW wind 25 kt. Seas 15 ft.
.THU...NW wind 35 kt. Seas 15 ft.
.FRI...W wind 35 kt. Seas 16 ft.
.SAT...W wind 30 kt. Seas 14 ft.

$$

PKZ785-211415-
Adak to Kiska Pacific Side-
410 AM AKST Tue Jan 21 2025

...STORM WARNING WEDNESDAY...

.TODAY...SW wind 35 kt. Seas 14 ft. Rain.
.TONIGHT...S wind 45 kt. Seas 20 ft. Rain.
.WED...SW wind 50 kt. Seas 26 ft.
.WED NIGHT...N wind 35 kt. Seas 18 ft.
.THU...NW wind 40 kt. Seas 22 ft.
.FRI...W wind 30 kt. Seas 16 ft.
.SAT...W wind 30 kt. Seas 12 ft.

$$

PKZ786-211415-
Kiska to Attu Bering Side-
410 AM AKST Tue Jan 21 2025

...GALE WARNING THROUGH WEDNESDAY...

.TODAY...SW wind 35 kt. Seas 13 ft. Rain and snow.
.TONIGHT...SE wind 30 kt becoming W 40 kt after midnight. Seas
14 ft. Rain and snow.
.WED...NW wind 45 kt. Seas 18 ft.
.WED NIGHT...NW wind 25 kt. Seas 14 ft.
.THU...NW wind 35 kt. Seas 16 ft.
.FRI...W wind 40 kt. Seas 18 ft.
.SAT...W wind 35 kt. Seas 14 ft.

$$

PKZ787-211415-
Kiska to Attu Pacific Side-
410 AM AKST Tue Jan 21 2025

...STORM WARNING TONIGHT AND WEDNESDAY...

.TODAY...S wind 40 kt. Seas 16 ft. Rain.
.TONIGHT...S wind 40 kt becoming W 50 kt after midnight. Seas 20
ft.
Rain and snow.
.WED...NW wind 50 kt diminishing to 30 kt in the afternoon. Seas
21 ft.
.WED NIGHT...NW wind 25 kt. Seas 15 ft.
.THU...NW wind 30 kt. Seas 15 ft.
.FRI...W wind 30 kt. Seas 16 ft.
.SAT...W wind 30 kt. Seas 12 ft.

$$

PKZ766-211415-
Pribilof Islands Nearshore Waters-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TODAY AND WEDNESDAY...

.TODAY...NW wind 35 kt. Seas 11 ft.
.TONIGHT...NW wind 25 kt becoming SW 15 kt after midnight. Seas 8 ft.
.WED...S wind 35 kt. Seas 7 ft building to 13 ft in the afternoon. Rain.
.WED NIGHT...SW wind 40 kt. Seas 16 ft.
.THU...S wind 50 kt. Seas 32 ft.
.FRI...W wind 25 kt. Seas 27 ft.
.SAT...W wind 30 kt. Seas 14 ft.

$$

PKZ760-211415-
Bristol Bay greater than 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TODAY...

.TODAY...E wind 35 kt. Gusts to 45 kt in the morning. Seas 9 ft.
.TONIGHT...SE wind 30 kt. Seas 7 ft. Rain.
.WED...W wind 30 kt. Seas 12 ft.
.WED NIGHT...S wind 35 kt. Seas 11 ft.
.THU THROUGH FRI...SE wind 40 kt. Seas 19 ft.
.SAT...SW wind 30 kt. Seas 9 ft.

$$

PKZ761-211415-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TODAY...

.TODAY...E wind 35 kt becoming SE 25 kt in the afternoon. Gusts to 45
kt in the morning. Seas 5 ft.
.TONIGHT...SE wind 30 kt. Seas 3 ft building to 6 ft after midnight. Rain.
.WED...SW wind 30 kt. Seas 10 ft.
.WED NIGHT...S wind 30 kt. Seas 6 ft.
.THU THROUGH FRI...SE wind 40 kt. Seas 10 ft.
.SAT...S wind 35 kt. Seas 9 ft.

$$

PKZ762-211415-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
410 AM AKST Tue Jan 21 2025

...GALE WARNING TODAY...

.TODAY...E wind 35 kt. Gusts to 45 kt in the morning. Seas 6 ft. Rain.
.TONIGHT...SE wind 30 kt. Seas 4 ft. Rain.
.WED...SW wind 30 kt. Seas 7 ft.
.WED NIGHT...S wind 35 kt. Seas 8 ft.
.THU THROUGH FRI...SE wind 40 kt. Seas 13 ft.
.SAT...W wind 35 kt. Seas 5 ft.

$$

PKZ763-211415-
Kuskokwim Delta and Etolin Strait out to 15 NM-
410 AM AKST Tue Jan 21 2025

...SMALL CRAFT ADVISORY TODAY AND WEDNESDAY...

.TODAY...E wind 30 kt. Seas in ice free waters 4 ft. Snow and rain.
.TONIGHT...E wind 20 kt. Seas in ice free waters 2 ft. 
Snow showers and rain.
.WED...W wind 25 kt. Seas in ice free waters 5 ft. Freezing spray.
.WED NIGHT...S wind 35 kt. Seas in ice free waters 9 ft.
.THU THROUGH FRI...SE wind 50 kt. Seas in ice free waters 15 ft.
.SAT...W wind 30 kt. Seas in ice free waters 6 ft.

$$

PKZ764-211415-
Kuskokwim Delta from 15 to 80 NM-
410 AM AKST Tue Jan 21 2025

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...E wind 30 kt becoming NE 20 kt in the afternoon. Seas 9 ft.
Snow with rain.
.TONIGHT...E wind 25 kt becoming W after midnight. Seas 6 ft
building to 11 ft after midnight. Rain.
.WED...W wind 30 kt. Seas 12 ft subsiding to 7 ft in the afternoon. Rain.
.WED NIGHT...S wind 40 kt. Seas 16 ft.
.THU THROUGH FRI...S wind 50 kt. Seas 23 ft.
.SAT...NW wind 25 kt. Seas 10 ft.

$$

PKZ765-211415-
North and West of Nunivak Island-
410 AM AKST Tue Jan 21 2025

...SMALL CRAFT ADVISORY THROUGH WEDNESDAY...

.TODAY...NE wind 30 kt. Seas in ice free waters 6 ft. Snow. Freezing spray.
.TONIGHT...N wind 25 kt. Seas in ice free waters 5 ft. Snow. Freezing spray.
.WED...W wind 15 kt becoming S 25 kt in the afternoon. 
Seas in ice free waters 4 ft. Snow.
.WED NIGHT...SE wind 30 kt. Seas in ice free waters 10 ft.
.THU THROUGH FRI...S wind 45 kt. Seas in ice free waters 21 ft.
.SAT...W wind 25 kt. Seas in ice free waters 12 ft.

$$

PKZ767-211415-
Saint Matthew Island Waters-
410 AM AKST Tue Jan 21 2025

...GALE WARNING WEDNESDAY...

.TODAY...N wind 30 kt E of Saint Matthew Island...E 25 kt W of
Saint Matthew Island. Seas 7 ft. Freezing spray.
.TONIGHT...N wind 25 kt E of Saint Matthew Island...E 30 kt W of
Saint Matthew Island. Seas 7 ft. Freezing spray.
.WED...E of Saint Matthew Island, NW wind 15 kt becoming E 30 kt
in the afternoon. W of Saint Matthew Island, E wind 40 kt. Seas 10 ft.
Snow. Freezing spray.
.WED NIGHT...SE wind 35 kt. Seas 11 ft.
.THU THROUGH FRI...SW wind 35 kt. Seas 18 ft.
.SAT...W wind 30 kt. Seas 15 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
516 AM AKST Mon Jan 20 2025

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

Monday will bring a brief respite from the otherwise active weather
that's been occurring across Southcentral Alaska in recent days.
Precipitation across the eastern half of the Copper River Basin,
primarily east of the Richardson Highway, will gradually clear out
this morning as the associated trough ejects eastward. Ridging will
then amplify across the area in wake of the system, leading to
generally quiescent weather. Low clouds and patchy fog may be a bit
slow to scour out this morning across the northern Cook Inlet,
portions of Anchorage, and the Mat-Su without a stronger mixing
mechanism, and as light southerly flow carries low-level moisture
into these areas.

Heading into tonight and tomorrow, attention turns towards an area
of low pressure moving towards the southern AK Peninsula, and the
associated front pivoting northward into the western Gulf of Alaska.
A tightening pressure gradient and down-inlet flow will help clear
out any remaining fog/stratus across the Kenai, Anchorage, and Mat-
Su. Simultaneously, widespread small-craft and then gale-force
winds will begin to spread across the Gulf. Model consensus
indicates the front should reach Kodiak Island late tonight and
then the Kenai Peninsula Tuesday afternoon and evening.

This front will bring about many of the same impacts as the last,
though perhaps a bit weaker and quicker moving. Ridgetop winds will
once again be rather strong, with gusts in excess of 60 mph not out
of the question of the Anchorage Hillside and other higher elevation
areas. Precipitation will largely be confined to the typical
windward locations of the eastern Kenai Peninsula and south slopes
of the Prince William Sound and Chugach Mountains. Cooler residual
air and short duration of return flow before the arrival of this front
will likely produce slightly lower snow levels than with the last
couple systems. At this point in time, snow levels look closer to
500 ft, though higher precipitation rates may occasionally drag
snow down to sea level. Turnagain and Thompson Passes will once
again be the 'winners' of this system, with snow amounts expected
to be in the 6 to 12 inch range. Brief periods of 1"/hr rates may
be possible, which would ultimately lead to whiteout conditions /
reduced visibility at times in those locations.

Precipitation will taper off Tuesday night into Wednesday behind the
front, though upslope flow is likely to keep precipitation lingering
along coastal mountains, as well as the Valdez-Thompson Pass area.
The upper-level trough and associated weak surface low will quickly
move eastward across the northern Gulf on Wednesday, bringing
continued unsettled weather over the open water, though additional
impacts inland are not expected at this time.

-Brown

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA AND THE BERING
SEA/ALEUTIANS (Monday morning to Thursday morning)...

An occluded front brings rain to the Aleutians/AKPen, reduced
visibility from snow across the Pribilofs this morning, and snow
for the Southwest mainland tonight into Tuesday. The responsible
low remains south of the eastern Aleutians before crossing the
AKPen Tuesday morning. Warm southerly, low-level flow behind the
front will limit snow to higher elevations, melting snow before it
reaches the ground for lower elevations. Below freezing
temperatures aloft should prevent freezing rain and sleet. This
warm airmass pushes inland toward Bethel, across Bristol Bay and
past Dillingham to Lake Iliamna on Tuesday.

As the main core of the former low passes over the Southwest by
Wednesday morning, cold air wrapping around the back of the system
will move in from the south, dropping temperatures below freezing
north of Dillingham by Wednesday afternoon. Lingering moisture
could produce snow showers north of Dillingham through Wednesday
afternoon.

Meanwhile, in the western Bering, a Kamchatka low is preparing to
send its front sweeping into the Southwest coast by Thursday
morning with widespread gales and areas of storm-force wind. This
may be followed by a long fetch of water vapor and an embedded
low streaming into the region from the North Pacific. This
tentatively appears to be the start a several-day period of
precipitation lasting into the weekend, followed by cold air
sweeping across the Bering Sea which will decisively switch
precipitation to snow by the end of the week. A pattern change
appears to be on the way.

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

Active weather will continue along the south central coast of
Alaska ahead of a large area of low pressure expected to move into
the state from the west around midweek. This low will transit
southwest and south central Alaska by Friday and Saturday and
bring much colder temperatures to most of the state for the
weekend. By Sunday, high pressure will bring drier conditions
gradually building east into the AKPEN and western Kenai by late
Sunday.

&&

.AVIATION...

Fog/mist and drizzle persists through later this morning resulting
in alternating MVFR to VFR conditions. Southerly to southeasterly
winds prevail in the afternoon leading to VFR conditions afterward
and into tomorrow morning. A front arrives tomorrow afternoon
bringing southwesterly wind gusts and VFR conditions.

Preliminary Local Storm Report
National Weather Service Anchorage AK
932 AM AKST Mon Jan 20 2025

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

0742 AM     Snow             Trapper Creek           62.32N 150.23W
01/20/2025  M8.9 Inch        Matanuska-Susitna  AK   Trained Spotter

            Storm total 8.9 inches of fairly wet snow.
            The snow to liquid water ratio was 9:1.
            Temperatures remained just below freezing.
            Currently the snow has stopped.

&&

AS

Preliminary Local Storm Report
National Weather Service Anchorage AK
935 AM AKST Mon Jan 20 2025

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

0837 AM     Snow             5 E Valdez              61.11N 146.22W
01/20/2025  M9.0 Inch        Chugach            AK   CO-OP Observer

            Updated total snowfall since yesterday
            morning. Total snow water equivalent of 1.64
            inches. Mix of rain and snow turned to heavy
            wet snow overnight.

&&

AS