Storm Warning 101, NWS Anchorage, AK

751 
FZAK52 PAFC 192319
CWFALU

Coastal Waters Forecast
National Weather Service Anchorage Alaska
319 PM AKDT Mon Aug 19 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.

PKZ199-201200-
319 PM AKDT Mon Aug 19 2024
.SYNOPSIS FOR SOUTHWEST ALASKA+BRISTOL BAY+THE ALASKA
PENINSULA WATERS AND THE ALEUTIAN ISLANDS...

A well developed 967 mb north Pacific low 90 nm northwest of Attu 
moves to 300 nm north of Attu at 965 mb Tue morning. It then 
continues to 20 nm west of Wales at 987 mb by Wed afternoon. A front
sweeps through the Aleutian islands through Wed afternoon. The front
enters western Alaska Tue night and continues sweeping the interior 
through Wed afternoon.

$$

PKZ750-201200-
Sitkinak to Castle Cape out to 15 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...NW wind 20 kt. Seas 5 ft.
.TUE...Variable wind 10 kt. Seas 3 ft.
.TUE NIGHT...S wind 15 kt. Seas 3 ft.
.WED...W wind 15 kt. Seas 3 ft.
.WED NIGHT...NW wind 15 kt. Seas 3 ft.
.THU THROUGH SAT...NW wind 20 kt. Seas 4 ft.

$$

PKZ751-201200-
Sitkinak to Castle Cape from 15 to 100 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...W wind 20 kt. Seas 7 ft.
.TUE...S wind 15 kt. Seas 5 ft.
.TUE NIGHT...S wind 15 kt. Seas 5 ft.
.WED AND WED NIGHT...W wind 20 kt. Seas 6 ft.
.THU THROUGH SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ752-201200-
Castle Cape to Cape Tolstoi out to 15 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...Variable wind 10 kt. Seas 2 ft.
.TUE...E wind 15 kt. Seas 2 ft.
.TUE NIGHT...SW wind 15 kt. Seas 3 ft.
.WED AND WED NIGHT...W wind 15 kt. Seas 3 ft.
.THU...Variable wind 10 kt. Seas 2 ft.
.FRI THROUGH SAT...NW wind 15 kt. Seas 3 ft.

$$

PKZ753-201200-
Castle Cape to Cape Tolstoi from 15 to 100 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...Variable wind 10 kt becoming SE 20 kt after midnight.
Seas 6 ft. Areas of fog.
.TUE...SE wind 15 kt. Seas 5 ft. Areas of fog.
.TUE NIGHT...SW wind 20 kt. Seas 7 ft.
.WED...W wind 20 kt. Seas 7 ft.
.WED NIGHT...W wind 15 kt. Seas 7 ft.
.THU...W wind 15 kt. Seas 5 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ754-201200-
Cape Tolstoi to Cape Sarichef out to 15 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...E wind 20 kt. Seas 4 ft. Areas of fog.
.TUE...E wind 20 kt. Seas 4 ft.
.TUE NIGHT...S wind 15 kt. Seas 4 ft.
.WED AND WED NIGHT...Variable wind 10 kt. Seas 4 ft.
.THU...W wind 15 kt. Seas 3 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 3 ft.

$$

PKZ755-201200-
Cape Tolstoi to Cape Sarichef from 15 to 100 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY TUESDAY NIGHT...

.TONIGHT...SE wind 20 kt. Seas 6 ft. Areas of fog.
.TUE...SE wind 15 kt. Seas 6 ft. Areas of fog.
.TUE NIGHT...SW wind 20 kt. Seas 8 ft.
.WED...W wind 20 kt. Seas 7 ft.
.WED NIGHT...W wind 15 kt. Seas 7 ft.
.THU...W wind 15 kt. Seas 5 ft.
.FRI THROUGH SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ756-201200-
Port Heiden to Nelson Lagoon out to 15 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...E wind 15 kt. Seas 5 ft. Areas of fog.
.TUE...SE wind 20 kt. Seas 4 ft.
.TUE NIGHT...S wind 20 kt. Seas 3 ft.
.WED AND WED NIGHT...SW wind 20 kt. Seas 5 ft.
.THU THROUGH SAT...W wind 20 kt. Seas 5 ft.

$$

PKZ757-201200-
Port Heiden to Nelson Lagoon from 15 to 60 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...E wind 15 kt. Seas 6 ft. Areas of fog.
.TUE...SE wind 20 kt. Seas 4 ft.
.TUE NIGHT...S wind 20 kt. Seas 5 ft.
.WED AND WED NIGHT...SW wind 20 kt. Seas 7 ft.
.THU THROUGH SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ758-201200-
Nelson Lagoon to Cape Sarichef out to 15 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY TUESDAY...

.TONIGHT...SE wind 20 kt. Seas 5 ft.
.TUE...SE wind 25 kt. Seas 4 ft.
.TUE NIGHT...S wind 20 kt. Seas 3 ft.
.WED AND WED NIGHT...SW wind 20 kt. Seas 6 ft.
.THU THROUGH SAT...W wind 20 kt. Seas 5 ft.

$$

PKZ759-201200-
Nelson Lagoon to Cape Sarichef from 15 to 70 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...SE wind 20 kt. Seas 6 ft.
.TUE...S wind 25 kt. Seas 5 ft. Areas of fog.
.TUE NIGHT...SW wind 25 kt. Seas 6 ft.
.WED AND WED NIGHT...SW wind 20 kt. Seas 9 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 8 ft.
.SAT...NW wind 20 kt. Seas 5 ft.

$$

PKZ770-201200-
Cape Sarichef to Nikolski Bering Side out to 15 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...SE wind 25 kt. Seas 5 ft. Areas of fog.
.TUE...SE wind 25 kt. Seas 4 ft.
.TUE NIGHT...SW wind 20 kt. Seas 4 ft.
.WED AND WED NIGHT...SW wind 15 kt. Seas 6 ft.
.THU...SW wind 15 kt. Seas 5 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 4 ft.

$$

PKZ772-201200-
Cape Sarichef to Nikolski Bering Side from 15 to 85 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...SE wind 25 kt. Seas 6 ft. Areas of fog.
.TUE...SE wind 25 kt. Seas 7 ft.
.TUE NIGHT...SW wind 20 kt. Seas 6 ft.
.WED AND WED NIGHT...SW wind 20 kt. Seas 9 ft.
.THU THROUGH SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ771-201200-
Unalaska Bay-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...SE wind 15 kt. Seas 2 ft. Areas of fog.
.TUE...SE wind 20 kt. Seas 3 ft.
.TUE NIGHT...SW wind 15 kt becoming W after midnight. Seas 2 ft.
.WED AND WED NIGHT...Variable wind less than 10 kt. Seas 3 ft.
.THU...SW wind 10 kt. Seas 2 ft.
.FRI THROUGH SAT...W wind 15 kt. Seas 2 ft.

$$

PKZ773-201200-
Cape Sarichef to Nikolski Pacific Side out to 15 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...E wind 20 kt. Seas 5 ft. Areas of fog.
.TUE...SE wind 20 kt. Seas 5 ft. Rain.
.TUE NIGHT...SW wind 20 kt. Seas 6 ft.
.WED...SW wind 15 kt. Seas 6 ft.
.WED NIGHT...Variable wind 10 kt. Seas 5 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI THROUGH SAT...NW wind 20 kt. Seas 3 ft.

$$

PKZ774-201200-
Cape Sarichef to Nikolski Pacific Side from 15 to 85 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...E wind 20 kt. Seas 6 ft. Areas of fog.
.TUE...S wind 20 kt. Seas 8 ft.
.TUE NIGHT...SW wind 20 kt. Seas 9 ft.
.WED...SW wind 20 kt. Seas 8 ft.
.WED NIGHT...W wind 15 kt. Seas 6 ft.
.THU...W wind 15 kt. Seas 5 ft.
.FRI THROUGH SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ775-201200-
Nikolski to Seguam Bering Side out to 15 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...SE wind 25 kt. Seas 6 ft. Areas of fog. Rain.
.TUE...S wind 25 kt becoming SW 15 kt in the afternoon. Seas 6 ft.
Rain.
.TUE NIGHT...SW wind 20 kt. Seas 6 ft.
.WED...SW wind 15 kt. Seas 6 ft.
.WED NIGHT...Variable wind 10 kt. Seas 6 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 4 ft.

$$

PKZ776-201200-
Nikolski to Seguam Bering Side from 15 to 85 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY THROUGH TUESDAY...

.TONIGHT...SE wind 30 kt. Seas 8 ft. Areas of fog. Rain.
.TUE...S wind 25 kt. Seas 7 ft. Rain.
.TUE NIGHT...SW wind 20 kt. Seas 7 ft.
.WED...SW wind 20 kt. Seas 8 ft.
.WED NIGHT...SW wind 15 kt. Seas 7 ft.
.THU THROUGH SAT...W wind 15 kt. Seas 5 ft.

$$

PKZ777-201200-
Nikolski to Seguam Pacfic Side out to 15 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 25 kt. Seas 7 ft. Areas of fog. Rain.
.TUE...S wind 20 kt. Seas 9 ft. Rain.
.TUE NIGHT...SW wind 20 kt. Seas 9 ft.
.WED...SW wind 15 kt. Seas 7 ft.
.WED NIGHT...Variable wind 10 kt. Seas 6 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 4 ft.

$$

PKZ778-201200-
Nikolski to Seguam Pacific Side from 15 to 75 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...SE wind 20 kt. Seas 7 ft. Areas of fog. Rain.
.TUE...S wind 20 kt. Seas 11 ft. Rain.
.TUE NIGHT...SW wind 20 kt. Seas 11 ft.
.WED...SW wind 15 kt. Seas 9 ft.
.WED NIGHT...Variable wind 10 kt. Seas 7 ft.
.THU...Variable wind 10 kt. Seas 5 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ780-201200-
Seguam to Adak Bering Side out to 15 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY TONIGHT AND TUESDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 6 ft. Rain.
.TUE...SW wind 20 kt. Seas 4 ft.
.TUE NIGHT...SW wind 25 kt. Seas 6 ft.
.WED AND WED NIGHT...S wind 15 kt. Seas 6 ft.
.THU...Variable wind 10 kt. Seas 3 ft.
.FRI THROUGH SAT...W wind 15 kt. Seas 3 ft.

$$

PKZ781-201200-
Seguam to Adak Bering Side from 15 to 85 NM-
319 PM AKDT Mon Aug 19 2024

...GALE WARNING TONIGHT...

.TONIGHT...SE wind 35 kt. Seas 10 ft. Rain.
.TUE...SW wind 25 kt. Seas 8 ft.
.TUE NIGHT...SW wind 25 kt. Seas 9 ft.
.WED...SW wind 20 kt. Seas 8 ft.
.WED NIGHT...SW wind 15 kt. Seas 6 ft.
.THU THROUGH SAT...W wind 15 kt. Seas 4 ft.

$$

PKZ782-201200-
Seguam to Adak Pacific Side out to 15 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 10 ft. Rain.
.TUE...SW wind 20 kt. Seas 12 ft.
.TUE NIGHT...SW wind 20 kt. Seas 11 ft.
.WED...SW wind 15 kt. Seas 8 ft.
.WED NIGHT...Variable wind 10 kt. Seas 6 ft.
.THU...Variable wind 10 kt. Seas 4 ft.
.FRI THROUGH SAT...W wind 15 kt. Seas 5 ft.

$$

PKZ783-201200-
Seguam to Adak Pacific Side from 15 to 75 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 30 kt. Seas 12 ft. Rain.
.TUE...SW wind 20 kt. Seas 14 ft.
.TUE NIGHT...SW wind 20 kt. Seas 12 ft.
.WED...SW wind 15 kt. Seas 9 ft.
.WED NIGHT...Variable wind 10 kt. Seas 6 ft.
.THU...Variable wind 10 kt. Seas 5 ft.
.FRI THROUGH SAT...W wind 20 kt. Seas 6 ft.

$$

PKZ784-201200-
Adak to Kiska Bering Side-
319 PM AKDT Mon Aug 19 2024

...GALE WARNING TONIGHT...

.TONIGHT...S wind 40 kt becoming SW 30 kt after midnight. Seas
17 ft.
.TUE...SW wind 30 kt. Seas 14 ft.
.TUE NIGHT...SW wind 30 kt. Seas 12 ft.
.WED...SW wind 20 kt. Seas 9 ft.
.WED NIGHT...SW wind 15 kt. Seas 7 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...SW wind 15 kt. Seas 4 ft.
.SAT...SW wind 20 kt. Seas 5 ft.

$$

PKZ785-201200-
Adak to Kiska Pacific Side-
319 PM AKDT Mon Aug 19 2024

...GALE WARNING TONIGHT...

.TONIGHT...S wind 35 kt becoming SW 25 kt after midnight. Seas
20 ft.
.TUE...SW wind 25 kt. Seas 17 ft.
.TUE NIGHT...SW wind 25 kt. Seas 12 ft.
.WED...SW wind 20 kt. Seas 9 ft.
.WED NIGHT...S wind 15 kt. Seas 6 ft.
.THU...SE wind 15 kt. Seas 5 ft.
.FRI...W wind 15 kt. Seas 6 ft.
.SAT...SW wind 25 kt. Seas 6 ft.

$$

PKZ786-201200-
Kiska to Attu Bering Side-
319 PM AKDT Mon Aug 19 2024

...GALE WARNING THROUGH TUESDAY...

.TONIGHT...SW wind 40 kt. Seas 23 ft.
.TUE...SW wind 40 kt diminishing to 30 kt in the afternoon. Seas
18 ft.
.TUE NIGHT...SW wind 30 kt. Seas 13 ft.
.WED AND WED NIGHT...SW wind 20 kt. Seas 8 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...SW wind 15 kt. Seas 5 ft.
.SAT...S wind 25 kt. Seas 13 ft.

$$

PKZ787-201200-
Kiska to Attu Pacific Side-
319 PM AKDT Mon Aug 19 2024

...GALE WARNING TONIGHT...

.TONIGHT...SW wind 40 kt. Seas 25 ft.
.TUE...SW wind 30 kt. Seas 17 ft.
.TUE NIGHT...SW wind 25 kt. Seas 12 ft.
.WED...SW wind 20 kt. Seas 9 ft.
.WED NIGHT...SW wind 15 kt. Seas 7 ft.
.THU...SW wind 20 kt. Seas 5 ft.
.FRI...SW wind 15 kt. Seas 6 ft.
.SAT...S wind 25 kt. Seas 14 ft.

$$

PKZ766-201200-
Pribilof Islands Nearshore Waters-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY THROUGH TUESDAY NIGHT...

.TONIGHT...SE wind 20 kt increasing to 30 kt after midnight. Seas
7 ft. Areas of fog.
.TUE...S wind 30 kt. Seas 9 ft. Rain.
.TUE NIGHT...SW wind 30 kt. Seas 12 ft.
.WED...SW wind 30 kt. Seas 14 ft.
.WED NIGHT...SW wind 25 kt. Seas 12 ft.
.THU THROUGH SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ760-201200-
Bristol Bay greater than 15 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...W wind 15 kt becoming S after midnight. Seas 5 ft.
Areas of fog.
.TUE...E wind 20 kt. Seas 4 ft.
.TUE NIGHT...SE wind 20 kt. Seas 4 ft. Rain showers.
.WED AND WED NIGHT...SW wind 20 kt. Seas 6 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 7 ft.
.SAT...W wind 20 kt. Seas 5 ft.

$$

PKZ761-201200-
Bristol Bay from Port Heiden to Cape Chichagof out to 15 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...W wind 15 kt becoming SW after midnight. Seas 5 ft.
.TUE...E wind 15 kt. Seas 3 ft.
.TUE NIGHT...SE wind 15 kt. Seas 2 ft. Rain showers.
.WED AND WED NIGHT...W wind 20 kt. Seas 5 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 6 ft.
.SAT...W wind 20 kt. Seas 5 ft.

$$

PKZ762-201200-
Bristol Bay from Cape Chichagof to Cape Pierce out to 15 NM-
319 PM AKDT Mon Aug 19 2024

.TONIGHT...W wind 15 kt diminishing to 10 kt after midnight. Seas
4 ft. Areas of fog.
.TUE...E wind 20 kt. Seas 2 ft.
.TUE NIGHT...SE wind 20 kt. Seas 2 ft. Rain.
.WED AND WED NIGHT...W wind 20 kt. Seas 5 ft.
.THU THROUGH FRI...W wind 20 kt. Seas 5 ft.
.SAT...W wind 15 kt. Seas 4 ft.

$$

PKZ763-201200-
Kuskokwim Delta and Etolin Strait out to 15 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...SW wind 15 kt. Seas 3 ft. Areas of fog.
.TUE...SE wind 30 kt. Seas 5 ft. Areas of fog.
.TUE NIGHT...S wind 30 kt. Seas 5 ft. Rain.
.WED AND WED NIGHT...SW wind 30 kt. Seas 7 ft.
.THU THROUGH SAT...NW wind 25 kt. Seas 5 ft.

$$

PKZ764-201200-
Kuskokwim Delta from 15 to 80 NM-
319 PM AKDT Mon Aug 19 2024

...SMALL CRAFT ADVISORY TUESDAY AND TUESDAY NIGHT...

.TONIGHT...SE wind 20 kt. Seas 6 ft. Areas of fog.
.TUE...SE wind 30 kt. Seas 7 ft. Areas of fog.
.TUE NIGHT...S wind 30 kt. Seas 8 ft. Rain.
.WED AND WED NIGHT...SW wind 30 kt. Seas 12 ft.
.THU THROUGH FRI...W wind 25 kt. Seas 8 ft.
.SAT...NW wind 20 kt. Seas 5 ft.

$$

PKZ765-201200-
North and West of Nunivak Island-
319 PM AKDT Mon Aug 19 2024

...GALE WARNING TUESDAY NIGHT...

.TONIGHT...S wind 20 kt. Seas 6 ft. Areas of fog.
.TUE...SE wind 30 kt. Seas 9 ft. Areas of fog. Rain.
.TUE NIGHT...SW wind 35 kt. Seas 12 ft.
.WED...SW wind 35 kt. Seas 17 ft.
.WED NIGHT...SW wind 30 kt. Seas 14 ft.
.THU...SW wind 25 kt. Seas 10 ft.
.FRI THROUGH SAT...NW wind 20 kt. Seas 6 ft.

$$

PKZ767-201200-
Saint Matthew Island Waters-
319 PM AKDT Mon Aug 19 2024

...GALE WARNING THROUGH TUESDAY NIGHT...

.TONIGHT...E of Saint Matthew Island, S wind 15 kt becoming SE 30
kt after midnight. W of Saint Matthew Island, SE wind 30 kt 
increasing to 40 kt after midnight. Seas 6 ft building to 12 ft after
midnight. Areas of fog. Rain.
.TUE...E of Saint Matthew Island, SE wind 35 kt. W of Saint
Matthew Island, SE wind 35 kt becoming S 45 kt in the afternoon. 
Seas 19 ft. Rain.
.TUE NIGHT...S wind 40 kt E of Saint Matthew Island... S 45 kt W
of Saint Matthew Island. Seas 27 ft. Rain.
.WED...SW wind 40 kt. Seas 23 ft.
.WED NIGHT...SW wind 30 kt. Seas 15 ft.
.THU...SW wind 30 kt. Seas 12 ft.
.FRI THROUGH SAT...NW wind 20 kt. Seas 6 ft.

$$

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
1136 PM AKDT Sun Aug 18 2024

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

A cold front associated with a strong low in Western Alaska is
tracking through Southcentral Alaska this afternoon and will
reach the AlCan border late tonight. Strong southerly winds have
been occurring ahead if this front with gusts 45 mph or higher in
Anchorage, Seldovia and Glennallen today. As this front passes
through, winds will shift to the southwest and generally not be as
strong. The main exceptions will be in and along Shelikof Strait
and Cook Inlet where the southwesterly winds will increase this
evening and remain strong overnight due to pressure rises in the
constricted terrain.

The 500 mb trough will take longer to move through Southcentral
and will track through the area Monday. As the main upper level
low is to the north of us, this upper trough will keep more clouds
cover and have shower potential farther north so the Mat-Su
valleys and Copper River Basin have the best chance for lingering
showers Monday. A surface trough will also develop along the north
Gulf coast Monday as the trough moves through and higher pressure
builds in from the west. this will increase northerly winds
especially near Kodiak, Seward, and Whittier Monday and Monday
night.

Generally sunny skies under high pressure will be over the region
on Tuesday before the next front moves into the region on
Wednesday. this front should bring more rain with it, but it
should move through fairly quickly.

&&

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

A Flood Warning is in effect through 6pm Monday for high winds
backing up flow along the lower Kuskokwim River and Kuskokwim
Delta.

Satellite image showed the Bering storm made landfall on the
Mainland this morning just north of Mekoryuk. ASCAT and surface
observations confirmed a narrow band of gusty winds ranging from
50 to 60 mph from Quinhagak north to Kipnuk inland to Bethel and
Tuluksak today. This narrow band of higher wind gusts diminished
this afternoon after peaking at 58 mph in Bethel. Flooding from
these winds pushing water up the Kuskokwim River in Bethel and
Tuntutuliak has been reported. Elsewhere, wind gusts ranged from
40 to 50 mph into this afternoon. Winds will continue to diminish
in to the evening. Widespread rain showers from the Alaska
Peninsula northward to Newtok inland to Lower Kalskag and
southeastward to Iliamna diminished quickly in the wake of the
storm's cold front with isolated ones in its wake through this
evening. Gale force winds in the Bering Sea will diminish this
afternoon.

A North Pacific High building just south of the Aleutians moves
eastward through Tuesday resulting in a period of calm conditions
for Shemya and the Western Aleutians through tomorrow and the
Central Aleutians to the Mainland tonight into Tuesday. A weak
low pressure just south of Adak could enhance the southerly/
southwesterly flow into the Central Aleutians, AK Pen and the
Mainland tomorrow and Tuesday.

Former tropical storm Ampil (Typhoon Ampil) moves northwest of
Shemya tomorrow bringing southwesterly gale force winds and
precipitation to Shemya, the Rat Islands and the Western Aleutians
as it moves northwest of Shemya overnight. Entering into the
Bering Sea, it intensifies from a 978 mb low to a 965mb low from
Monday morning to Tuesday morning. A wave moving southeasterly
toward Ampil could force the tropical storm into a more northward
direction. The storm's front is likely to reach Adak Monday
evening/Tuesday morning with gusty winds and precipitation.

-DJ

&&

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

The former Tropical Storm Ampil will have moved into the Bering
Strait on Thursday. Generally zonal flow through Friday across the
Bering with several disturbances rotating through the flow. An
upper level trough sweeps from the eastern coast of Russia on
through the forecast period. The trough reaches the western
mainland of Alaska on Saturday and bisects the interior for
Sunday. A surface front develops over western Alaska and moves
into the Gulf of Alaska and interior by Sunday. An upper level low
will form off of Kamchatka on Sunday and become our next weather
maker after the end of the forecast period.

Generally widespread gusty winds across the Bering accompanies
the formation of the front into western Alaska, dissipating late
Friday. The front spreads a wide swath of locally heavy rain
across the western half of Alaska for Thursday and diminishes as
the front moves through the interior. On the tail end of the
front, an elongated band of locally heavy rains will impact the
Aleutians and Alaska Peninsula through early Friday. As the front
passes through Southcentral, it will form a low pressure system
over the Northern Gulf, which will trigger moderate to heavy rain
across Prince William Sound and the Copper River Delta for the
rest of the forecast period. A well developed low pressure system
in the eastern North Pacific will bring heavy rain and strong
winds for next week.

-JR

&&

.AVIATION...

PANC...VFR conditions persist. Gusty southwesterly wind will
increase overnight, peaking before 12Z Monday morning.

&&

SPECIAL WEATHER STATEMENT...RESENT
National Weather Service ANCHORAGE AK
1207 AM AKDT Mon Aug 19 2024

AKZ181-185-191300-
Alaska Peninsula-Eastern Aleutians-
Including the cities of Cold Bay, Sand Point, Unalaska,
and Nikolski
1207 AM AKDT Mon Aug 19 2024

...TRACE AMOUNTS OF ASH POSSIBLE ACROSS THE EASTERN ALEUTIANS AND
ALASKA PENINSULA THROUGH EARLY MONDAY MORNING...

A band of residual ash from the eruption of Sheveluch on the
Kamchatka Peninsula Saturday has moved over the eastern Aleutians
and Alaska Peninsula this evening. Diminishing winds at the
surface and aloft is allowing some of this ash to settle to the
surface, resulting in the potential for trace amounts of ash for
these locations. Any residual ash is expected to diminish by
Monday morning.

People with respiratory ailments in these areas are encouraged to
avoid or reduce outdoor activity to avoid inhaling ash.

Preliminary Local Storm Report
National Weather Service Anchorage AK
1207 AM AKDT Mon Aug 19 2024

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

0300 PM     Coastal Flood    Tuntutuliak             60.34N 162.67W
08/18/2024                   Bethel             AK   Public

            Report received before 3 pm from a resident
            in Tuntutuliak that water had entered at
            least two houses. Southerly wind-driven
            surge event leading to high water levels on
            the lower Kuskokwim River.

&&

Preliminary Local Storm Report
National Weather Service Anchorage AK
1244 AM AKDT Mon Aug 19 2024

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

0300 PM     Coastal Flood    Bethel                  60.79N 161.74W
08/18/2024                   Bethel             AK   NWS Employee

            An NWS employee reports several streets
            flooded in Bethel, including S Harbor Rd.
            Waves of 1.5 ft overtopping the road.
            Southerly wind-driven surge event leading to
            high water levels on the lower Kuskokwim
            River.

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