Blizzard Warning 6, NWS Anchorage, AK

660 
WWAK42 PAFC 031146
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
346 AM AKDT Thu Apr 3 2025

AKZ755-040215-
/O.CON.PAFC.BZ.W.0006.250404T0600Z-250405T0300Z/
Kuskokwim Delta Coast and Nunivak Island-
Including the cities of Toksook Bay, Quinhagak, Kipnuk, and
Mekoryuk
346 AM AKDT Thu Apr 3 2025

...BLIZZARD WARNING REMAINS IN EFFECT FROM 10 PM THURSDAY TO 7 PM 
AKDT FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations of 5 
  to 9 inches. Winds gusting as high as 35 to 40 mph.

* WHERE...Kuskokwim Delta Coast from Kipnuk north including Nunivak 
  Island.

* WHEN...From 10 PM Thursday to 7 PM AKDT Friday.

* IMPACTS...Visibilities reduced to one quarter mile or less due to 
  blowing snow. Travel could be very difficult.

* ADDITIONAL DETAILS...A significant winter storm will move across 
  the Kuskokwim Delta coast and Nunivak Island. Gusty winds in 
  combination with falling snow will lead to blizzard conditions, 
  especially across Nunivak Island. The worst conditions will likely 
  occur after midnight Friday morning. Visibility reductions to 
  one-half mile are expected with brief periods to one-quarter mile 
  for Toksook Bay to Kipnuk as winds accelerate through Etolin 
  Strait. Snow showers and gusty winds are expected to persist 
  through the weekend, though intensity should decrease Friday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are 
expected or occurring. Falling and blowing snow with strong winds 
and poor visibilities are likely. This will lead to whiteout 
conditions, making travel very hazardous. If you must travel, have a 
winter survival kit with you. If you get stranded, stay with your 
vehicle.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

&&

$$

AKZ785-040215-
/O.CON.PAFC.WS.W.0005.250403T1500Z-250405T0000Z/
Eastern Aleutians-
Including the cities of Akutan, Unalaska, and Nikolski
346 AM AKDT Thu Apr 3 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM 7 AM THURSDAY TO 4 PM 
AKDT FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 
  18 inches. Winds gusting as high as 60 mph. Visibilities will be 
  reduced to one half mile or less with wind and heavy snow.

* WHERE...Eastern Aleutians.

* WHEN...From 7 AM Thursday to 4 PM AKDT Friday.

* IMPACTS...Visibilities reduced to one half mile or less due to 
  blowing snow. Whiteout conditions are possible at times. Travel 
  could be very difficult.

* ADDITIONAL DETAILS...A significant winter storm will move over the 
  Eastern Aleutians late tonight and early Thursday morning. As it 
  does, temperatures will fall into the lower 30s, with any rain at 
  the onset changing to snow by early Thursday morning. Heavy, wet 
  snow is expected from Thursday morning through at least early 
  Friday afternoon. Warmer air may move in Friday evening, allowing 
  for a mix of rain and snow. Storm total snow amounts may be 
  reduced if rain does mix in late Friday. The heaviest snowfall 
  rates are expected Thursday afternoon through Friday morning with 
  the strongest winds Thursday night through Friday.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather 
conditions will make travel very hazardous. If you must travel, keep 
an extra flashlight, food and water in your vehicle in case of an 
emergency.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

&&

$$

BL

075 
WWAK42 PAFC 040006
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
406 PM AKDT Thu Apr 3 2025

AKZ755-041515-
/O.CON.PAFC.BZ.W.0006.250404T0600Z-250405T0300Z/
Kuskokwim Delta Coast and Nunivak Island-
Including the cities of Toksook Bay, Kipnuk, Mekoryuk, and
Quinhagak
406 PM AKDT Thu Apr 3 2025

...BLIZZARD WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO 7 
PM AKDT FRIDAY...

* WHAT...Blizzard conditions expected. Total snow accumulations of 5 
  to 9 inches. Winds gusting as high as 35 to 40 mph.

* WHERE...Kuskokwim Delta Coast from Kipnuk north including Nunivak 
  Island.

* WHEN...From 10 PM this evening to 7 PM AKDT Friday.

* IMPACTS...Visibilities reduced to one quarter mile or less due to 
  blowing snow. Travel could be very difficult.

* ADDITIONAL DETAILS...A significant winter storm will move across 
  the Kuskokwim Delta coast and Nunivak Island. Gusty winds in 
  combination with falling snow will lead to blizzard conditions, 
  especially across Nunivak Island. The worst conditions will likely 
  occur after midnight Friday morning. Visibility reductions to 
  one-half mile are expected with brief periods to one-quarter mile 
  for Toksook Bay to Kipnuk as winds accelerate through Etolin 
  Strait. Snow showers and gusty winds are expected to persist 
  through the weekend, though intensity should decrease Friday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are 
expected or occurring. Falling and blowing snow with strong winds 
and poor visibilities are likely. This will lead to whiteout 
conditions, making travel very hazardous. If you must travel, have a 
winter survival kit with you. If you get stranded, stay with your 
vehicle.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

&&

$$

AKZ785-041515-
/O.CON.PAFC.WS.W.0005.000000T0000Z-250405T0000Z/
Eastern Aleutians-
Including the cities of Akutan, Unalaska, and Nikolski
406 PM AKDT Thu Apr 3 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM AKDT FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 
  18 inches. Winds gusting as high as 60 mph. Visibilities will be 
  reduced to one half mile or less with wind and heavy snow.

* WHERE...Eastern Aleutians.

* WHEN...Until 4 PM AKDT Friday.

* IMPACTS...Visibilities reduced to one half mile or less due to 
  blowing snow. Whiteout conditions are possible at times. Travel 
  could be very difficult. Area roadways may become dangerous for 
  both personal and commercial vehicles to travel on. Travel on area 
  roadways is not recommended unless necessary.

* ADDITIONAL DETAILS...A significant winter storm will continue 
  across the Eastern Aleutians through late Friday. Heavy, wet snow 
  is expected to persist through at least early Friday afternoon. 
  Warmer air may move in Friday evening, allowing for a mix of rain 
  and snow. Storm total snow amounts may be reduced if rain does mix 
  in late Friday. The heaviest snowfall rates are expected Thursday 
  afternoon through Friday morning with the strongest winds Thursday 
  night through Friday. As of 4pm local time, Unalaska/Dutch Harbor 
  emergency managers are reporting treacherous road conditions for 
  commercial vehicles. Motorists are urged to use caution and only 
  travel if necessary.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather 
conditions will make travel very hazardous. If you must travel, keep 
an extra flashlight, food and water in your vehicle in case of an 
emergency.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

&&

$$

Markle

508 
WWAK42 PAFC 041411
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
611 AM AKDT Fri Apr 4 2025

AKZ755-050045-
/O.CON.PAFC.BZ.W.0006.000000T0000Z-250405T0300Z/
Kuskokwim Delta Coast and Nunivak Island-
Including the cities of Kipnuk, Mekoryuk, Toksook Bay, and
Quinhagak
611 AM AKDT Fri Apr 4 2025

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 7 PM AKDT THIS EVENING...

* WHAT...Blizzard conditions expected. Total snow accumulations of 5 
  to 9 inches. Winds gusting as high as 35 to 40 mph.

* WHERE...Kuskokwim Delta Coast from Kipnuk north including Nunivak 
  Island.

* WHEN...Until 7 PM AKDT this evening.

* IMPACTS...Visibilities reduced to one quarter mile or less due to 
  blowing snow. Travel could be very difficult.

* ADDITIONAL DETAILS...A significant winter storm is moving across 
  the Kuskokwim Delta coast and Nunivak Island. Gusty winds in 
  combination with falling snow will lead to blizzard conditions, 
  especially across Nunivak Island. The worst conditions will likely 
  occur this morning. Visibility reductions to one-half mile are 
  expected with brief periods to one-quarter mile for Toksook Bay to 
  Kipnuk as winds accelerate through Etolin Strait. Snow showers and 
  gusty winds are expected to persist through the weekend, though 
  intensity should decrease Friday night.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are 
expected or occurring. Falling and blowing snow with strong winds 
and poor visibilities are likely. This will lead to whiteout 
conditions, making travel very hazardous. If you must travel, have a 
winter survival kit with you. If you get stranded, stay with your 
vehicle.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

&&

$$

AKZ785-050000-
/O.CON.PAFC.WS.W.0005.000000T0000Z-250405T0000Z/
Eastern Aleutians-
Including the cities of Nikolski, Unalaska, and Akutan
611 AM AKDT Fri Apr 4 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM AKDT THIS 
AFTERNOON...

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 
  18 inches. Winds gusting as high as 60 mph. Visibilities will be 
  reduced to one half mile or less with wind and heavy snow.

* WHERE...Eastern Aleutians.

* WHEN...Until 4 PM AKDT this afternoon.

* IMPACTS...Visibilities reduced to one half mile or less due to 
  blowing snow. Whiteout conditions are possible at times. Travel 
  could be very difficult. Area roadways may become dangerous for 
  both personal and commercial vehicles to travel on. Travel on area 
  roadways is not recommended unless necessary.

* ADDITIONAL DETAILS...A significant winter storm will continue 
  across the Eastern Aleutians through today. Heavy, wet snow is 
  expected to persist through at least early this afternoon. Warmer 
  air may move in this evening, allowing for a mix of rain and snow. 
  Storm total snow amounts may be reduced if rain does mix in late 
  today. The heaviest snowfall rates are expected through this 
  morning with the strongest winds through today. Unalaska/Dutch 
  Harbor emergency managers are reporting treacherous road 
  conditions for commercial vehicles. Motorists are urged to use 
  caution and only travel if necessary.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather 
conditions will make travel very hazardous. If you must travel, keep 
an extra flashlight, food and water in your vehicle in case of an 
emergency.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

&&

$$

946 
WWAK42 PAFC 041857
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
1057 AM AKDT Fri Apr 4 2025

AKZ785-050300-
/O.EXT.PAFC.WS.W.0005.000000T0000Z-250405T0800Z/
Eastern Aleutians-
Including the cities of Akutan, Nikolski, and Unalaska
1057 AM AKDT Fri Apr 4 2025

...WINTER STORM WARNING NOW IN EFFECT UNTIL MIDNIGHT AKDT TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations up to 6 inches. 
  Winds gusting as high as 65 mph.

* WHERE...Eastern Aleutians.

* WHEN...Until midnight AKDT tonight.

* IMPACTS...Visibilities reduced to one half mile or less due to 
  blowing snow. Whiteout conditions are possible at times. Travel 
  could be very difficult. Area roadways are dangerous for traveling.

* ADDITIONAL DETAILS...Local officials have requested to stay off 
  roads as much as possible. Travel only if necessary.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather 
conditions will make travel very hazardous. If you must travel, keep 
an extra flashlight, food and water in your vehicle in case of an 
emergency.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

Persons should consider delaying all travel. Motorists should use 
extreme caution if travel is absolutely necessary.

&&

$$

AKZ755-050300-
/O.CON.PAFC.BZ.W.0006.000000T0000Z-250405T0300Z/
Kuskokwim Delta Coast and Nunivak Island-
Including the cities of Kipnuk, Mekoryuk, Toksook Bay, and
Quinhagak
1057 AM AKDT Fri Apr 4 2025

...BLIZZARD WARNING REMAINS IN EFFECT UNTIL 7 PM AKDT THIS EVENING...

* WHAT...Blizzard conditions. Additional snow accumulations up to 3 
  inches. Winds gusting as high as 45 mph.

* WHERE...Kuskokwim Delta Coast from Kipnuk north including Nunivak 
  Island.

* WHEN...Until 7 PM AKDT this evening.

* IMPACTS...Visibilities reduced to one quarter mile or less due to 
  blowing snow. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Blizzard Warning means severe winter weather conditions are 
expected or occurring. Falling and blowing snow with strong winds 
and poor visibilities are likely. This will lead to whiteout 
conditions, making travel very hazardous. If you must travel, have a 
winter survival kit with you. If you get stranded, stay with your 
vehicle.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

&&

$$

ER

703 
WWAK42 PAFC 050251
WSWALU

URGENT - WINTER WEATHER MESSAGE
National Weather Service Anchorage AK
651 PM AKDT Fri Apr 4 2025

AKZ755-050400-
/O.EXP.PAFC.BZ.W.0006.000000T0000Z-250405T0300Z/
Kuskokwim Delta Coast and Nunivak Island-
Including the cities of Kipnuk, Toksook Bay, Quinhagak, and
Mekoryuk
651 PM AKDT Fri Apr 4 2025

...BLIZZARD WARNING WILL EXPIRE AT 7 PM AKDT THIS EVENING...

Visibilities have come up across the Kuskokwim Delta Coast and 
Nunivak Island and blizzard conditions are no longer anticipated. 
However, periods of snow and blowing snow will continue into 
Saturday.

$$

AKZ785-050800-
/O.CON.PAFC.WS.W.0005.000000T0000Z-250405T0800Z/
Eastern Aleutians-
Including the cities of Unalaska, Akutan, and Nikolski
651 PM AKDT Fri Apr 4 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL MIDNIGHT AKDT 
TONIGHT...

* WHAT...Heavy snow. Additional snow accumulations up to 3 to 5 
  inches. Winds gusting up to 45 mph.

* WHERE...Eastern Aleutians.

* WHEN...Until midnight AKDT tonight.

* IMPACTS...Visibilities reduced to one half mile or less due to 
  blowing snow. Whiteout conditions are possible at times. Travel 
  could be very difficult. Area roadways are dangerous for traveling.

* ADDITIONAL DETAILS...Local officials have requested to stay off 
  roads as much as possible. Travel only if necessary.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather 
conditions will make travel very hazardous. If you must travel, keep 
an extra flashlight, food and water in your vehicle in case of an 
emergency.

 For the latest road conditions call 5 1 1 or visit 511.alaska.gov.

Persons should consider delaying all travel. Motorists should use 
extreme caution if travel is absolutely necessary.

&&

$$

DAN

Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
527 PM AKDT Wed Apr 2 2025

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

A digging trough over the Bering Sea and Aleutians is leading to
amplification of the downstream ridge over southern AK and the
Gulf. While some high cirrus clouds have formed over Southcentral
today, dry conditions and warm temperatures continue across the
region. The amplification of the upper flow will ultimately lead
to a pattern change, with the ridge progressing eastward to Canada
on Thursday, opening the way for a deep trough and Pacific surface
low to impact Kodiak Island, the Gulf waters, and Southcentral AK
Thursday night through Saturday. The forecast for this storm
system is on track, with few changes made to the going forecast.
A strong leading frontal system will track well out ahead of the
parent low, lifting northward across the Gulf Thursday night and
then stalling over the northern Gulf Friday afternoon through
Saturday afternoon as a vertically stacked low sets up shop south
of the Alaska Peninsula and Kodiak Island. The vast majority of
impacts from this storm will be along the coastal zone, with
strong easterly winds and rain. Snow levels will remain fairly
high, starting out at around 1000 to 1500 feet early Friday
morning, then rising 1800 to 2500 feet by late Friday. Thus, snow
should not be a big issue along the road system. Inland areas will
remain mostly dry with strong downsloping flow, though there
could be an occasional brief period of light precipitation as weak
upper short-waves track inland. Temperatures will remain above
normal, with a trend toward above freezing night-time temperatures
due to extensive cloud cover.

-SEB

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA/BERING SEA/ALEUTIANS (Days
1 through 3: Tonight through Saturday)...

Key points...

 * Winter Storm Watch upgraded to Warning for Unalaska
    -Heavy wet snow, blowing snow and reduced visibilities
    -Onset early Thursday morning

 * Blizzard Watch for the Kuskokwim Delta Coast continues
    -Strong winds with blowing snow
    -Onset Thursday morning

Very little to the weather picture has changed over the last 12
hours, other than fine tuning of warning products. A deepening
north Pacific low continues to lift towards the Aleutian Chain
this afternoon. A warm front lifting ahead of this low will slam
into a cold front that lay draped from Norton Sound, southwest
through Adak. The low is expected to slow down and stall through
Friday, southwest of Kodiak Island. Where the interaction of warm
moist air from the south and cold arctic air from north collide,
heavy snow will occur. Current guidance is putting the island of
Unalaska right in the cross-hairs. Unlike the early winter storm
that brought similar snow amounts to the island, the bulk of the
dynamics will remain south of the chain. That said, conditions are
still going to be favorable to produce a lot of heavy and wet
snow over a prolonged time period. Snow totals for the city may be
lower side of expectations, but the influence of terrain will
allow those totals to swell rapidly with minimal elevation gains.
Unalaska and the harbor are should see 10 inches to more than a
foot, while amounts over a foot and a half cannot be ruled out.
The other aspect of this event will be the winds. Winds and cold
air will be driving across the Bering and will easily be
sustained above 25 mph, starting around dawn on Thursday with
gusts at or above 40 mph. Winds will steadily increase and peak in
the overnight hours on Thursday, lasting into Friday, potentially
surpassing 60 mph gusts. The combination of the driving winds and
periods of heavy snow will lead to whiteout conditions. Snow will
taper off Friday into Saturday with winds abating later into
Saturday and Sunday.

North along the Kusko coast the blizzard watch continues. Trends
are starting to focus more on the bulk of the snow pushing later
into the day and along the far western coast (Kipnuk to Toksook
Bay and across to the Nunivak Island). Blizzard conditions are
looking a little less likely, but blowing snow will still be a
hazard.

&&

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

The most significant feature on the Alaska Weather map is an
elongated trough stretching from the Arctic through Interior
Alaska to the Gulf of Alaska through the forecast period. Closed
lows over Northern Alaska and the Gulf weaken through midweek.
Although there is some oscillation within the elongated trough,
there is little movement. Ridges over the Western Canadian
Provinces and the Bering also weaken through the period. Forecast
continuity remains good with a GFS / ECMWF / Canadian blend, but
minor differences with shortwaves gliding through the pattern
represent the variations and short term changes in forecast.

A moderately strong surface low over the Southern Gulf of Alaska
spreads locally heavy rainfall from the Eastern Aleutians over the
Alaska Peninsula through Monday. Gusty winds over the AKPEN
linger through midweek. Locally heavy rains marches across Kodiak
Island and the rest of Southcentral Coastal zones through
Wednesday. Areas of locally moderate snow spread over Southwest
Alaska into the Interior, and diminish through midweek. A well
developed low and front approaches the Western Aleutians for
Sunday, but dissipates to the South of the chain by Tuesday.

- Kutz

&&

.AVIATION...

PANC...VFR conditions are expected to continue through the TAF
period. A ridge of high pressure is developing along the coast,
which will induce winds through Turnagain Arm this
afternoon/evening. Given the warm temperatures and heating in the
Valley, there's a chance the wind moves over the terminal this
afternoon/evening. We're not anticipating a strong wind at this
time but gusts up to 20 kt are possible. Calm conditions are then
expected overnight, with a return of the Turnagain wind possible
Thursday afternoon and evening.

&&