Storm Warning 89, NWS Anchorage, AK

Issued

Apr 13, 2024, 2:57 AM AKDT (10:57 UTC)

Expired

Apr 13, 2024, 3:15 PM AKDT

In force

12 hr

Issued by

NWS Anchorage, AK

753 
FZAK52 PAFC 131057
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
257 AM AKDT Sat Apr 13 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.

PKZ199-132315-
257 AM AKDT Sat Apr 13 2024
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A ridge moves across the Bering and exits through Bristol Bay for
Sun morning. A 997 mb low forms 160 nm South of Shemya Sun 
morning and moves to 105 nm North of Seguam Island at 995 mb by 
Mon morning. Its front extends across the Aleutians and Alaska 
Peninsula through Mon morning.

$$

PKZ750-132315-
Sitkinak to Castle Cape out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NW wind 30 kt. Seas 6 ft. Freezing spray.
.TONIGHT...NW wind 30 kt. Seas 6 ft.
.SUN...NW wind 30 kt. Seas 5 ft.
.SUN NIGHT...W wind 15 kt. Seas 3 ft.
.MON...S wind 25 kt. Seas 5 ft.
.TUE...E wind 30 kt. Seas 8 ft.
.WED...E wind 30 kt. Seas 13 ft.

$$

PKZ751-132315-
Sitkinak to Castle Cape from 15 to 100 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY THROUGH SUNDAY...

.TODAY...NW wind 30 kt. Seas 10 ft.
.TONIGHT...NW wind 25 kt. Seas 9 ft.
.SUN...NW wind 25 kt. Seas 8 ft.
.SUN NIGHT...SW wind 15 kt. Seas 5 ft.
.MON...S wind 25 kt. Seas 7 ft.
.TUE...E wind 30 kt. Seas 12 ft.
.WED...E wind 30 kt. Seas 17 ft.

$$

PKZ752-132315-
Castle Cape to Cape Tolstoi out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas 4 ft. Freezing spray.
.TONIGHT...NW wind 25 kt. Seas 3 ft.
.SUN...NW wind 20 kt in the morning becoming variable 10 kt.
Seas 2 ft.
.SUN NIGHT...Variable wind 10 kt. Seas 2 ft.
.MON...S wind 25 kt. Seas 7 ft.
.TUE...E wind 20 kt. Seas 8 ft.
.WED...NE wind 20 kt. Seas 13 ft.

$$

PKZ753-132315-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas 9 ft.
.TONIGHT...NW wind 25 kt. Seas 8 ft.
.SUN...NW wind 20 kt in the morning becoming variable 10 kt.
Seas 6 ft.
.SUN NIGHT...SW wind 15 kt. Seas 4 ft.
.MON...S wind 25 kt. Seas 10 ft.
.TUE...E wind 25 kt. Seas 10 ft.
.WED...NE wind 25 kt. Seas 14 ft.

$$

PKZ754-132315-
Cape Tolstoi to Cape Sarichef out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas 4 ft.
.TONIGHT...NW wind 25 kt. Seas 3 ft.
.SUN...N wind 15 kt in the morning becoming variable 10 kt.
Seas 2 ft.
.SUN NIGHT...S wind 25 kt. Seas 5 ft.
.MON...S wind 35 kt. Seas 15 ft.
.TUE...E wind 20 kt. Seas 10 ft.
.WED...NW wind 30 kt. Seas 7 ft.

$$

PKZ755-132315-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 25 kt. Seas 8 ft.
.TONIGHT...NW wind 20 kt. Seas 7 ft.
.SUN...NW wind 15 kt. Seas 5 ft.
.SUN NIGHT...S wind 25 kt. Seas 6 ft.
.MON...S wind 35 kt. Seas 15 ft.
.TUE...E wind 25 kt. Seas 12 ft.
.WED...N wind 35 kt. Seas 12 ft.

$$

PKZ756-132315-
Port Heiden to Nelson Lagoon out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 25 kt. Seas 7 ft. Freezing spray.
.TONIGHT...NW wind 20 kt. Seas 6 ft.
.SUN...NW wind 15 kt. Seas 3 ft.
.SUN NIGHT...E wind 20 kt. Seas 2 ft.
.MON...SE wind 35 kt. Seas 5 ft.
.TUE...E wind 25 kt. Seas 4 ft.
.WED...NE wind 20 kt. Seas 7 ft.

$$

PKZ757-132315-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 25 kt. Seas 9 ft. Freezing spray.
.TONIGHT...NW wind 20 kt. Seas 6 ft.
.SUN...NW wind 15 kt. Seas 5 ft.
.SUN NIGHT...SE wind 20 kt. Seas 3 ft.
.MON...S wind 40 kt. Seas 12 ft.
.TUE...E wind 25 kt. Seas 9 ft.
.WED...NE wind 25 kt. Seas 9 ft.

$$

PKZ758-132315-
Nelson Lagoon to Cape Sarichef out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 20 kt. Seas 8 ft. Freezing spray.
.TONIGHT...NW wind 15 kt. Seas 5 ft.
.SUN...Variable wind 10 kt. Seas 4 ft.
.SUN NIGHT...SE wind 30 kt. Seas 4 ft.
.MON...S wind 35 kt. Seas 7 ft.
.TUE...E wind 20 kt. Seas 6 ft.
.WED...N wind 30 kt. Seas 11 ft.

$$

PKZ759-132315-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY...

.TODAY...NW wind 25 kt. Seas 8 ft. Freezing spray.
.TONIGHT...NW wind 15 kt. Seas 6 ft.
.SUN...Variable wind 10 kt becoming SE 15 kt in the afternoon.
Seas 4 ft.
.SUN NIGHT...SE wind 35 kt. Seas 8 ft.
.MON...S wind 45 kt. Seas 15 ft.
.TUE...SE wind 20 kt. Seas 9 ft.
.WED...N wind 35 kt. Seas 12 ft.

$$

PKZ770-132315-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...NW wind 15 kt. Seas 5 ft.
.SUN...S wind 20 kt becoming SE 30 kt in the afternoon. Seas 4 ft.
.SUN NIGHT...S wind 45 kt. Seas 9 ft.
.MON...SW wind 40 kt. Seas 10 ft.
.TUE...NW wind 30 kt. Seas 6 ft.
.WED...NW wind 40 kt. Seas 14 ft.

$$

PKZ772-132315-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY AND SUNDAY...

.TODAY...NW wind 15 kt. Seas 8 ft.
.TONIGHT...NW wind 15 kt. Seas 5 ft.
.SUN...S wind 15 kt becoming SE 30 kt in the afternoon. Seas 5 ft.
.SUN NIGHT...SE wind 50 kt. Seas 17 ft.
.MON...SW wind 45 kt. Seas 18 ft.
.TUE...NW wind 25 kt. Seas 8 ft.
.WED...NW wind 35 kt. Seas 14 ft.

$$

PKZ771-132315-
Unalaska Bay-
257 AM AKDT Sat Apr 13 2024

.TODAY...NW wind 15 kt diminishing to 10 kt in the afternoon.
Seas 5 ft subsiding to 3 ft in the afternoon.
.TONIGHT...NW wind 10 kt in the evening becoming variable less
than 10 kt. Seas 3 ft.
.SUN...Variable wind less than 10 kt becoming S 20 kt in the
afternoon. Seas 3 ft.
.SUN NIGHT...S wind 35 kt. Seas 5 ft.
.MON...S wind 30 kt. Seas 4 ft.
.TUE...NW wind 10 kt. Seas 3 ft.
.WED...NW wind 30 kt. Seas 12 ft.

$$

PKZ773-132315-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY AND SUNDAY...

.TODAY...N wind 25 kt. Seas 5 ft.
.TONIGHT...NW wind 20 kt. Seas 4 ft.
.SUN...SW wind 15 kt becoming S 25 kt in the afternoon. Seas 4 ft.
.SUN NIGHT...S wind 45 kt. Seas 16 ft.
.MON...S wind 40 kt. Seas 18 ft.
.TUE...NW wind 25 kt. Seas 10 ft.
.WED...NW wind 40 kt. Seas 8 ft.

$$

PKZ774-132315-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...N wind 20 kt. Seas 7 ft.
.TONIGHT...NW wind 15 kt. Seas 6 ft.
.SUN...SW wind 15 kt becoming S 25 kt in the afternoon. Seas 5 ft.
.SUN NIGHT...S wind 40 kt. Seas 15 ft.
.MON...S wind 40 kt. Seas 19 ft.
.TUE...N wind 25 kt. Seas 13 ft.
.WED...NW wind 40 kt. Seas 12 ft.

$$

PKZ775-132315-
Nikolski to Seguam Bering Side out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...GALE WARNING SUNDAY...

.TODAY...N wind 15 kt. Seas 6 ft.
.TONIGHT...S wind 15 kt. Seas 4 ft.
.SUN...S wind 30 kt increasing to 45 kt in the afternoon.
Seas 6 ft building to 11 ft in the afternoon.
.SUN NIGHT...S wind 50 kt. Seas 21 ft.
.MON...W wind 35 kt. Seas 17 ft.
.TUE...NW wind 30 kt. Seas 12 ft.
.WED...NW wind 35 kt. Seas 15 ft.

$$

PKZ776-132315-
Nikolski to Seguam Bering Side from 15 to 85 NM-
257 AM AKDT Sat Apr 13 2024

...GALE WARNING SUNDAY...

.TODAY...Variable wind 10 kt. Seas 7 ft.
.TONIGHT...Variable wind 10 kt becoming S 20 kt after midnight.
Seas 4 ft.
.SUN...S wind 30 kt becoming SE 45 kt in the afternoon. Seas 6 ft
building to 12 ft in the afternoon.
.SUN NIGHT...S wind 50 kt. Seas 23 ft.
.MON...W wind 40 kt. Seas 19 ft.
.TUE...NW wind 30 kt. Seas 12 ft.
.WED...NW wind 35 kt. Seas 14 ft.

$$

PKZ777-132315-
Nikolski to Seguam Pacfic Side out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...GALE WARNING SUNDAY...

.TODAY...N wind 15 kt. Seas 6 ft.
.TONIGHT...S wind 15 kt. Seas 4 ft.
.SUN...S wind 30 kt increasing to 45 kt in the afternoon.
Seas 6 ft building to 11 ft in the afternoon.
.SUN NIGHT...S wind 50 kt. Seas 23 ft.
.MON...W wind 35 kt. Seas 20 ft.
.TUE...NW wind 30 kt. Seas 10 ft.
.WED...NW wind 35 kt. Seas 13 ft.

$$

PKZ778-132315-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
257 AM AKDT Sat Apr 13 2024

...GALE WARNING SUNDAY...

.TODAY...N wind 15 kt. Seas 7 ft.
.TONIGHT...Variable wind 10 kt becoming S 15 kt after midnight.
Seas 5 ft.
.SUN...S wind 25 kt increasing to 40 kt in the afternoon.
Seas 6 ft building to 11 ft in the afternoon.
.SUN NIGHT...S wind 50 kt. Seas 22 ft.
.MON...W wind 30 kt. Seas 20 ft.
.TUE...NW wind 30 kt. Seas 11 ft.
.WED...NW wind 35 kt. Seas 15 ft.

$$

PKZ780-132315-
Seguam to Adak Bering Side out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...STORM WARNING SUNDAY...

.TODAY...S wind 15 kt. Seas 5 ft.
.TONIGHT...S wind 15 kt increasing to 25 kt after midnight.
Seas 4 ft.
.SUN...S wind 50 kt. Seas 12 ft. Rain and snow.
.SUN NIGHT...SW wind 50 kt. Seas 13 ft.
.MON...W wind 30 kt. Seas 11 ft.
.TUE...NW wind 25 kt. Seas 11 ft.
.WED...NW wind 30 kt. Seas 13 ft.

$$

PKZ781-132315-
Seguam to Adak Bering Side from 15 to 85 NM-
257 AM AKDT Sat Apr 13 2024

...STORM WARNING SUNDAY...

.TODAY...S wind 15 kt. Seas 5 ft.
.TONIGHT...S wind 15 kt increasing to 25 kt after midnight.
Seas 5 ft.
.SUN...SE wind 50 kt. Seas 10 ft building to 17 ft in the
afternoon. Rain and snow.
.SUN NIGHT...SW wind 50 kt. Seas 19 ft.
.MON...W wind 35 kt. Seas 13 ft.
.TUE THROUGH WED...NW wind 30 kt. Seas 12 ft.

$$

PKZ782-132315-
Seguam to Adak Pacific Side out to 15 NM-
257 AM AKDT Sat Apr 13 2024

...STORM WARNING SUNDAY...

.TODAY...Variable wind 10 kt. Seas 5 ft.
.TONIGHT...S wind 15 kt increasing to 25 kt after midnight.
Seas 5 ft.
.SUN...S wind 50 kt. Seas 11 ft building to 21 ft in the
afternoon. Rain and snow.
.SUN NIGHT...SW wind 50 kt. Seas 23 ft.
.MON...W wind 30 kt. Seas 17 ft.
.TUE...NW wind 25 kt. Seas 9 ft.
.WED...NW wind 30 kt. Seas 8 ft.

$$

PKZ783-132315-
Seguam to Adak Pacific Side from 15 to 75 NM-
257 AM AKDT Sat Apr 13 2024

...STORM WARNING SUNDAY...

.TODAY...Variable wind 10 kt. Seas 6 ft.
.TONIGHT...S wind 15 kt increasing to 25 kt after midnight.
Seas 6 ft.
.SUN...SE wind 50 kt. Seas 13 ft building to 22 ft in the
afternoon. Rain and snow.
.SUN NIGHT...SW wind 50 kt. Seas 23 ft.
.MON...W wind 30 kt. Seas 18 ft.
.TUE THROUGH WED...NW wind 30 kt. Seas 11 ft.

$$

PKZ784-132315-
Adak to Kiska Bering Side-
257 AM AKDT Sat Apr 13 2024

...GALE WARNING SUNDAY...

.TODAY...S wind 20 kt. Seas 5 ft. Rain.
.TONIGHT...S wind 20 kt becoming SE 30 kt after midnight.
Seas 6 ft. Rain and snow.
.SUN...SE wind 45 kt. Seas 16 ft. Rain and snow.
.SUN NIGHT...W wind 35 kt. Seas 13 ft.
.MON...W wind 30 kt. Seas 11 ft.
.TUE...NW wind 25 kt. Seas 9 ft.
.WED...W wind 20 kt. Seas 9 ft.

$$

PKZ785-132315-
Adak to Kiska Pacific Side-
257 AM AKDT Sat Apr 13 2024

...STORM WARNING SUNDAY...

.TODAY...S wind 20 kt. Seas 6 ft.
.TONIGHT...S wind 20 kt becoming SE 40 kt after midnight
Seas 5 ft building to 9 ft after midnight. Rain and snow.
.SUN...SE wind 50 kt. Seas 21 ft.
.SUN NIGHT...W wind 40 kt. Seas 21 ft.
.MON...W wind 25 kt. Seas 14 ft.
.TUE...NW wind 25 kt. Seas 9 ft.
.WED...W wind 20 kt. Seas 8 ft.

$$

PKZ786-132315-
Kiska to Attu Bering Side-
257 AM AKDT Sat Apr 13 2024

...GALE WARNING SUNDAY...

.TODAY...S wind 20 kt. Seas 6 ft. Rain showers and snow showers.
.TONIGHT...S wind 15 kt becoming E 25 kt after midnight. Seas 5
ft. Rain and snow.
.SUN...NE wind 35 kt. Seas 11 ft.
.SUN NIGHT...NW wind 30 kt. Seas 11 ft.
.MON...W wind 25 kt. Seas 9 ft.
.TUE...W wind 20 kt. Seas 9 ft.
.WED...S wind 20 kt. Seas 6 ft.

$$

PKZ787-132315-
Kiska to Attu Pacific Side-
257 AM AKDT Sat Apr 13 2024

...GALE WARNING TONIGHT AND SUNDAY...

.TODAY...SW wind 20 kt. Seas 7 ft. Rain showers.
.TONIGHT...S wind 20 kt becoming E 35 kt after midnight.
Seas 9 ft. Rain.
.SUN...NW wind 35 kt. Seas 14 ft.
.SUN NIGHT...NW wind 30 kt. Seas 13 ft.
.MON...W wind 25 kt. Seas 10 ft.
.TUE...W wind 20 kt. Seas 9 ft.
.WED...S wind 15 kt. Seas 6 ft.

$$

PKZ766-132315-
Pribilof Islands Nearshore Waters-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY SUNDAY...

.TODAY...W wind 20 kt. Seas 6 ft.
.TONIGHT...W wind 15 kt. Seas 5 ft.
.SUN...S wind 15 kt increasing to 25 kt in the afternoon.
Seas 6 ft.
.SUN NIGHT...SE wind 45 kt. Seas 19 ft.
.MON...SW wind 45 kt. Seas 23 ft.
.TUE...W wind 25 kt. Seas 10 ft.
.WED...NW wind 30 kt. Seas 9 ft.

$$

PKZ760-132315-
Bristol Bay greater than 15 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY THROUGH TONIGHT...

.TODAY...NW wind 25 kt. Seas in ice free waters 6 ft.
Freezing spray.
.TONIGHT...W wind 25 kt. Seas in ice free waters 5 ft.
.SUN...W wind 15 kt diminishing to 10 kt in the afternoon.
Seas in ice free waters 4 ft.
.SUN NIGHT...E wind 15 kt. Seas in ice free waters 2 ft.
.MON...SE wind 30 kt. Seas in ice free waters 7 ft.
.TUE...SE wind 25 kt. Seas in ice free waters 5 ft.
.WED...NE wind 25 kt. Seas in ice free waters 5 ft.

$$

PKZ761-132315-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
257 AM AKDT Sat Apr 13 2024

.TODAY...NW wind 20 kt. Seas 5 ft. Freezing spray.
.TONIGHT...W wind 20 kt. Seas 5 ft. Freezing spray.
.SUN...W wind 15 kt diminishing to 10 kt in the afternoon.
Seas 3 ft.
.SUN NIGHT...NE wind 10 kt. Seas 2 ft.
.MON...SE wind 30 kt. Seas 4 ft.
.TUE...SE wind 25 kt. Seas 4 ft.
.WED...NE wind 20 kt. Seas 6 ft.

$$

PKZ762-132315-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
257 AM AKDT Sat Apr 13 2024

.TODAY...NW wind 20 kt.
.TONIGHT...W wind 20 kt.
.SUN...W wind 15 kt diminishing to 10 kt in the afternoon.
.SUN NIGHT...E wind 15 kt.
.MON...SE wind 30 kt.
.TUE...SE wind 25 kt.
.WED...NE wind 25 kt.

$$

PKZ763-132315-
Kuskokwim Delta and Etolin Strait out to 15 NM-
257 AM AKDT Sat Apr 13 2024

.TODAY...W wind 20 kt.
.TONIGHT...W wind 20 kt.
.SUN...W wind 15 kt becoming SW in the afternoon.
.SUN NIGHT...SE wind 20 kt.
.MON...SE wind 45 kt.
.TUE...SE wind 30 kt.
.WED...NE wind 20 kt.

$$

PKZ764-132315-
Kuskokwim Delta from 15 to 80 NM-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 25 kt. Seas in ice free waters 5 ft.
Freezing spray.
.TONIGHT...W wind 20 kt. Seas in ice free waters 4 ft.
.SUN...W wind 15 kt. Seas in ice free waters 3 ft.
.SUN NIGHT...SE wind 30 kt. Seas in ice free waters 2 ft.
.MON...S wind 45 kt. Seas in ice free waters 13 ft.
.TUE...SE wind 25 kt. Seas in ice free waters 10 ft.
.WED...N wind 25 kt. Seas in ice free waters 4 ft.

$$

PKZ765-132315-
North and West of Nunivak Island-
257 AM AKDT Sat Apr 13 2024

.TODAY...W wind 20 kt.
.TONIGHT...W wind 20 kt.
.SUN...SW wind 15 kt.
.SUN NIGHT...SE wind 30 kt.
.MON...S wind 40 kt.
.TUE...S wind 20 kt.
.WED...NW wind 20 kt.

$$

PKZ767-132315-
Saint Matthew Island Waters-
257 AM AKDT Sat Apr 13 2024

...SMALL CRAFT ADVISORY TODAY...

.TODAY...W wind 25 kt. Seas in ice free waters 7 ft.
.TONIGHT...SW wind 20 kt. Seas in ice free waters 6 ft.
.SUN...S wind 20 kt. Seas in ice free waters 5 ft.
.SUN NIGHT...SE wind 30 kt. Seas in ice free waters 7 ft.
.MON...N wind 30 kt. Seas in ice free waters 11 ft.
.TUE THROUGH WED...NW wind 30 kt. Seas in ice free waters 8 ft.

$$

NWS Anchorage, AK wrote its last area forecast discussion before this storm warning went out at Apr 12, 4:06 PM AKDT, 10 hours 51 minutes earlier.

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
406 PM AKDT Fri Apr 12 2024

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (Days 1 through 3:
This afternoon through Monday)...

Aside from some updates to the precipitation forecast, only minor
changes have been made since the previous forecast package. Our
current spell of more active weather will subside through tomorrow,
ushering in quieter weather for most of the weekend. No major
hazards are expected through Monday.

Diving into the details...a weak surface low currently lingers
near Prince William Sound, while an upper level longwave trough
approaches from the west. The surface low's decaying front
continues to produce precipitation across Prince William Sound.
Areas like Whittier and Cordova have transitioned from snow to
rain as temperatures climb into the mid-30s, though Valdez
continues to hold onto snow.

Further west, lift associated with the incoming upper level
trough is producing snow showers along west-facing slopes of
Talkeetnas, Chugach Front Range, and Kenai Peninsula mountains.
Parts of Anchorage also saw light snow earlier today as low level
convergence (from southeasterly flow up Turnagain Arm and
southwesterly flow up Cook Inlet) produced persistent
snowfall/graupel. However, with the longwave trough progressing
eastward through the afternoon and evening, precipitation in
these areas will taper off as the showers move into the Copper
River Basin.

As the longwave trough moves east, a weak low forms in the Gulf
Saturday morning and drifts southward, leading to gusty, offshore
winds through the weekend. An upper level ridge gradually builds
in by Saturday afternoon, allowing clouds to gradually clear out
from west to east. Expect fairly pleasant, mostly sunny and dry
conditions with seasonable highs in the mid 30s to low 40s and
lows in the teens to 20s through Monday.

-KC

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA, BERING SEA, AND ALEUTIAN
ISLANDS (Days 1 through 3: Tonight through Monday)...

Scattered snow showers continue to taper off this afternoon and
evening for the Kuskokwim Delta. Snow shower activity will linger
through the night for interior Bristol Bay, the northern Alaska
Peninsula, and the Lower Kuskokwim Valley before tapering off
early Saturday morning. Cold and dry northerly flow will take
hold of the weather pattern for Tonight through most of Saturday
across Southwest Alaska. Temperatures tonight look to dip into the
single digits and teens for mainland Southwest while the AKPEN
sees 20s. Temperatures look to rebound for Saturday with the AKPEN
and mainland Southwest seeing upper 20s to lower 30s for highs. A
weak upper-level shortwave looks to drop into the Kuskokwim Delta
Saturday night into Sunday morning before ridging builds in
during the day Sunday. Any snow accumulations look to be light and
mainly confined to the Kuskokwim and Kilbuck Mountains. As the
ridge builds in Sunday, there could be the chance for some patchy
fog across portions of coastal Bristol Bay.

The next notable weather-maker looks to arrive Sunday morning as a
North Pacific low lifts to the western and central Aleutian Chain.
There is some uncertainty in the ultimate track of the low, but
trends today hedge toward the stronger solution of the GFS/NAM.
A corridor of sustained storm-force winds is possible Sunday for
areas of the western Aleutians, particularly for eastern portions,
as well as for the central Aleutians Sunday into Sunday night.
Expect rain/snow mix at the start with a changeover to rain Sunday
afternoon as warm air works in. The front, now gale-force, makes
it to the Pribilof Island late Sunday evening with precipitation
starting as snow and eventually changing over to rain/snow mix
by Monday afternoon. The front continues its journey eastward
to coastal Southwest by Monday afternoon and moves inland of the
Kuskokwim Delta and Western Capes region of northwestern Bristol
Bay through Monday evening. There could be enough cold air in
place as the front arrives to get a period of blowing snow across
portions of the Kuskokwim Delta Coast, Nunivak Island, and the
Western Capes. Stay tuned as details become clearer about the
evolution and track of this system.

&&

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

A pattern shift is on tap in the long term forecast period. Expect
the ridge to break down. A series of North Pacific Lows will push
into the Gulf and moisture from the Central Pacific Basin will
move towards Southcentral. However, model agreement regarding the
timing of these lows is still not exactly in sync but they are
locking on to the concept of a wetter and windier pattern for
Kodiak, the Barren Islands and other parts of Southcentral. Given
its origin and potential orientation of these moisture fetches,
this may also lead to another precipitation event for the Prince
William Sound communities. For Southwest Alaska, the temperatures
will be below seasonal norms this forecast period but beyond that
the vagaries of the models leave much to be desired. Out west
over the Bering and NW Pacific, the models are all over the place.
The run-to-run continuity for the NW Pacific and Bering has been
poor for the medium range for multiple runs of the global models.

&&

.AVIATION...

PANC...Generally improving conditions are expected through the
night and into Saturday as an upper level trough passes by and
high pressure is able to build in behind the trough. This will
diminish the gusty south to southeasterly winds by this evening
and then turn them northerly overnight. There may be some light
snow showers and reduced ceilings as vorticity-maxima on the back
side of the low track overhead between 12Z and 18Z, but the
northerly flow will generally begin to advect in drier air. If
there is any ceiling/vis reduction Saturday morning, it will be
brief and conditions will quickly improve through the morning
hours.

&&

Storm Warnings in Alaska, 2024Every storm warning in 2024

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.