Alert archive / Alaska / Heavy Freezing Spray Warnings in 2021

Heavy Freezing Spray Warning 96, NWS Anchorage, AK

March 26, 2021

NWS Anchorage, AK issued this heavy freezing spray warning at Mar 26, 2021, 3:56 AM AKDT. It was in force for 48 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Mar 26, 2021, 3:56 AM AKDT (11:56 UTC)
Expired
Mar 28, 2021, 3:40 AM AKDT
In force
48 hr
Issued by
NWS Anchorage, AK

The text

As transmitted.

147 
FZAK62 PAFC 261156
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
356 AM AKDT Fri Mar 26 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-270100-
356 AM AKDT Fri Mar 26 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A 1001mb low at 61N 178W will move inland tonight. A second 972 mb 
low at 52N 167E Saturday afternoon will move to 60N 176E at 978 mb 
Sunday morning. 

$$

PKZ411-270100-
Bering Sea Offshore West of 180 and East of the International
Dateline-
356 AM AKDT Fri Mar 26 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...NW wind 20 to 35 kt. Seas 8 to 16 ft.
.TONIGHT...E wind 10 to 25 kt becoming SE 20 to 35 kt after
midnight. Seas 7 to 10 ft. Snow and rain.
.SAT...SE wind 30 to 45 kt. Seas 8 to 13 ft building to 12 to 19 ft 
in the afternoon. Rain and snow.
.SAT NIGHT...S wind 35 to 50 kt. Seas 14 to 27 ft.
.SUN...W wind 30 to 45 kt. Seas 15 to 27 ft.
.MON...W wind 20 to 35 kt. Seas 10 to 18 ft.
.TUE...SW wind 10 to 25 kt. Seas 5 to 10 ft.

$$

PKZ412-270100-
Bering Sea Offshore 171W to 180 and North of 56N-
356 AM AKDT Fri Mar 26 2021

...GALE WARNING THROUGH SATURDAY...

.TODAY...W wind 25 to 35 kt. Seas 12 to 18 ft.
.TONIGHT...NW wind 20 to 35 kt diminishing to 10 to 25 kt after
midnight. Seas 10 to 18 ft. Freezing spray.
.SAT...SE wind 25 to 40 kt. Seas 8 to 13 ft. Snow and rain.
.SAT NIGHT...S wind 40 kt. Seas 11 to 19 ft.
.SUN...SW wind 30 to 45 kt. Seas 16 to 28 ft.
.MON...W wind 20 to 35 kt. Seas 13 to 21 ft.
.TUE...W wind 15 to 30 kt. Seas 8 to 13 ft.

$$

PKZ413-270100-
Bering Sea Offshore 171W to 180 and South of 56N-
356 AM AKDT Fri Mar 26 2021

...GALE WARNING SATURDAY...

.TODAY...W wind 15 to 30 kt. Seas 9 to 12 ft.
.TONIGHT...NW wind 10 to 25 kt becoming S after midnight. Seas 8
to 11 ft.
.SAT...SE wind 20 to 35 kt becoming S 30 to 45 kt in the
afternoon. Seas 9 to 17 ft.
.SAT NIGHT...S wind 40 to 50 kt. Seas 14 to 22 ft.
.SUN...SW wind 35 to 50 kt. Seas 17 to 29 ft.
.MON...W wind 25 to 40 kt. Seas 14 to 22 ft.
.TUE...W wind 15 to 30 kt. Seas 8 to 13 ft.

$$

PKZ414-270100-
Bering Sea Offshore East of 171W-
356 AM AKDT Fri Mar 26 2021

...GALE WARNING TONIGHT...
...HEAVY FREEZING SPRAY WARNING SATURDAY...

.TODAY...W wind 20 to 30 kt. Seas 7 to 12 ft.
.TONIGHT...W wind 20 to 35 kt. Seas 9 to 17 ft. Freezing spray.
Snow showers.
.SAT...NW wind 15 to 30 kt becoming SW 10 to 25 kt in the
afternoon. Seas 8 to 13 ft. Heavy freezing spray.
.SAT NIGHT...S wind 30 to 45 kt. Seas 9 to 14 ft.
.SUN THROUGH MON...SW wind 30 to 45 kt. Seas 15 to 23 ft.
.TUE...NW wind 20 to 30 kt. Seas 9 to 14 ft.

$$
4 follow-up statements
997 
FZAK62 PAFC 262357
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
357 PM AKDT Fri Mar 26 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-271430-
357 PM AKDT Fri Mar 26 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A 969 mb North Pacific low Sat morning moves to 59N 179W at 982 
mb for Sun afternoon.

$$

PKZ411-271430-
Bering Sea Offshore West of 180 and East of the International
Dateline-
357 PM AKDT Fri Mar 26 2021

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...E wind 10 to 25 kt becoming SE 20 to 35 kt after
midnight. Seas 7 to 10 ft. Snow and rain.
.SAT...SE wind 30 to 45 kt. Seas 8 to 13 ft building to 12 to 19
ft in the afternoon. Rain and snow.
.SAT NIGHT...S wind 25 to 40 kt increasing to 35 to 50 kt after
midnight. Seas 14 to 27 ft. Rain showers and snow.
.SUN...SW wind 30 to 45 kt. Seas 16 to 27 ft.
.SUN NIGHT...W wind 25 to 40 kt. Seas 15 to 21 ft.
.MON...W wind 20 to 30 kt. Seas 10 to 17 ft.
.TUE...SW wind 10 to 25 kt. Seas 5 to 10 ft.
.WED...SW wind 25 to 35 kt. Seas 9 to 15 ft.

$$

PKZ412-271430-
Bering Sea Offshore 171W to 180 and North of 56N-
357 PM AKDT Fri Mar 26 2021

...GALE WARNING THROUGH SATURDAY NIGHT...

.TONIGHT...NW wind 20 to 35 kt diminishing to 10 to 25 kt after
midnight. Seas 10 to 18 ft. Freezing spray.
.SAT...SE wind 25 to 40 kt. Seas 8 to 13 ft. Snow and rain.
.SAT NIGHT...S wind 40 kt. Seas 11 to 19 ft. Rain and snow.
.SUN...S wind 30 to 45 kt. Seas 19 to 28 ft.
.SUN NIGHT...SW wind 30 to 45 kt. Seas 16 to 27 ft.
.MON...W wind 20 to 30 kt. Seas 12 to 20 ft.
.TUE...W wind 15 to 30 kt. Seas 8 to 13 ft.
.WED...SW wind 15 to 30 kt. Seas 6 to 11 ft.

$$

PKZ413-271430-
Bering Sea Offshore 171W to 180 and South of 56N-
357 PM AKDT Fri Mar 26 2021

...STORM WARNING SATURDAY NIGHT...

.TONIGHT...NW wind 10 to 25 kt becoming S after midnight. Seas 8
to 11 ft.
.SAT...SE wind 20 to 35 kt becoming S 30 to 45 kt in the
afternoon. Seas 9 to 17 ft.
.SAT NIGHT...S wind 40 to 50 kt. Seas 14 to 22 ft. Rain.
.SUN...SW wind 40 to 50 kt. Seas 20 to 29 ft.
.SUN NIGHT...SW wind 30 to 45 kt. Seas 17 to 27 ft.
.MON...W wind 25 to 35 kt. Seas 13 to 21 ft.
.TUE...W wind 15 to 30 kt. Seas 8 to 13 ft.
.WED...SW wind 20 to 30 kt. Seas 8 to 13 ft.

$$

PKZ414-271430-
Bering Sea Offshore East of 171W-
357 PM AKDT Fri Mar 26 2021

...GALE WARNING TONIGHT AND SATURDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING SATURDAY...

.TONIGHT...W wind 20 to 35 kt. Seas 9 to 17 ft. Freezing spray.
Snow showers.
.SAT...NW wind 15 to 30 kt becoming SW 10 to 25 kt in the
afternoon. Seas 8 to 13 ft. Heavy freezing spray.
.SAT NIGHT...S wind 30 to 45 kt. Seas 8 to 13 ft. Freezing spray.
.SUN...SW wind 35 to 45 kt. Seas 12 to 20 ft.
.SUN NIGHT...SW wind 35 to 45 kt. Seas 17 to 24 ft.
.MON...SW wind 25 to 40 kt. Seas 14 to 22 ft.
.TUE...NW wind 20 to 30 kt. Seas 9 to 14 ft.
.WED...W wind 10 to 25 kt. Seas 4 to 9 ft.

$$
954 
FZAK62 PAFC 271143
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
343 AM AKDT Sat Mar 27 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-280045-
343 AM AKDT Sat Mar 27 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A 971 mb low at 52N 166E this morning will move to 58N 178E at 979
mb Sunday morning. The low then moves to 62N 168W at 992 mb Monday
morning.  

$$

PKZ411-280045-
Bering Sea Offshore West of 180 and East of the International
Dateline-
343 AM AKDT Sat Mar 27 2021

...STORM WARNING TONIGHT...

.TODAY...SE wind 30 to 45 kt. Seas 8 to 16 ft building to 14 to
20 ft in the afternoon. Rain and snow.
.TONIGHT...S wind 35 to 50 kt. Seas 16 to 27 ft. Rain and snow
showers.
.SUN...SW wind 30 to 45 kt. Seas 16 to 27 ft. Snow showers and
rain showers.
.SUN NIGHT...NW wind 25 to 40 kt. Seas 14 to 20 ft.
.MON...W wind 15 to 30 kt. Seas 8 to 16 ft.
.TUE THROUGH WED...SW wind 15 to 30 kt. Seas 7 to 12 ft.

$$

PKZ412-280045-
Bering Sea Offshore 171W to 180 and North of 56N-
343 AM AKDT Sat Mar 27 2021

...GALE WARNING THROUGH SUNDAY...

.TODAY...SE wind 20 to 35 kt increasing to 30 to 45 kt in the
afternoon. Seas 8 to 13 ft. Snow and rain.
.TONIGHT...S wind 30 to 40 kt. Seas 12 to 20 ft. Rain and snow.
.SUN...S wind 30 to 45 kt. Seas 18 to 27 ft. Rain showers and snow
showers.
.SUN NIGHT...SW wind 30 to 45 kt. Seas 16 to 27 ft.
.MON...W wind 20 to 30 kt. Seas 11 to 19 ft.
.TUE...W wind 15 to 30 kt. Seas 7 to 12 ft.
.WED...SW wind 10 to 25 kt. Seas 5 to 10 ft.

$$

PKZ413-280045-
Bering Sea Offshore 171W to 180 and South of 56N-
343 AM AKDT Sat Mar 27 2021

...STORM WARNING TONIGHT AND SUNDAY...

.TODAY...S wind 30 to 45 kt. Seas 8 to 11 ft building to 10 to 18 ft
in the afternoon. Rain and snow.
.TONIGHT...S wind 40 to 50 kt. Seas 15 to 23 ft. Rain.
.SUN...SW wind 40 to 50 kt. Seas 20 to 29 ft.
.SUN NIGHT...SW wind 30 to 45 kt. Seas 18 to 27 ft.
.MON...W wind 25 to 35 kt. Seas 12 to 19 ft.
.TUE THROUGH WED...SW wind 15 to 30 kt. Seas 8 to 13 ft.

$$

PKZ414-280045-
Bering Sea Offshore East of 171W-
343 AM AKDT Sat Mar 27 2021

...GALE WARNING TONIGHT AND SUNDAY...
...HEAVY FREEZING SPRAY WARNING THROUGH TONIGHT...

.TODAY...NW wind 15 to 30 kt becoming S in the afternoon. Seas 8
to 13 ft. Heavy freezing spray.
.TONIGHT...S wind 30 to 45 kt. Seas 8 to 16 ft. Heavy freezing
spray. Snow.
.SUN...SW wind 35 to 45 kt. Seas 13 to 21 ft.
.SUN NIGHT...SW wind 35 to 45 kt. Seas 16 to 25 ft.
.MON...W wind 25 to 40 kt. Seas 13 to 21 ft.
.TUE THROUGH WED...W wind 15 to 30 kt. Seas 6 to 11 ft.

$$
412 
FZAK62 PAFC 272242
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
242 PM AKDT Sat Mar 27 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-281345-
242 PM AKDT Sat Mar 27 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A 972 mb low at 54N 168E moves to 64N 167W at 983 mb for Mon 
afternoon.

$$

PKZ411-281345-
Bering Sea Offshore West of 180 and East of the International
Dateline-
242 PM AKDT Sat Mar 27 2021

...STORM WARNING TONIGHT...

.TONIGHT...S wind 35 to 50 kt. Seas 16 to 27 ft. Rain and snow
showers.
.SUN...SW wind 30 to 45 kt. Seas 16 to 27 ft. Snow showers and
rain showers.
.SUN NIGHT...W wind 25 to 40 kt. Seas 14 to 20 ft. Freezing spray.
Snow showers.
.MON...W wind 20 to 30 kt. Seas 10 to 16 ft.
.MON NIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft.
.TUE THROUGH THU...SW wind 15 to 30 kt. Seas 8 to 13 ft.

$$

PKZ412-281345-
Bering Sea Offshore 171W to 180 and North of 56N-
242 PM AKDT Sat Mar 27 2021

...GALE WARNING THROUGH SUNDAY NIGHT...

.TONIGHT...S wind 30 to 40 kt. Seas 12 to 20 ft. Rain and snow.
.SUN...S wind 30 to 45 kt. Seas 18 to 27 ft. Rain showers and snow
showers.
.SUN NIGHT...SW wind 30 to 45 kt becoming W 20 to 35 kt after
midnight. Seas 16 to 27 ft. Rain showers and snow showers.
.MON...W wind 20 to 30 kt. Seas 11 to 19 ft.
.MON NIGHT...NW wind 20 to 30 kt. Seas 10 to 13 ft.
.TUE...W wind 15 to 30 kt. Seas 7 to 12 ft.
.WED THROUGH THU...SW wind 10 to 25 kt. Seas 7 to 12 ft.

$$

PKZ413-281345-
Bering Sea Offshore 171W to 180 and South of 56N-
242 PM AKDT Sat Mar 27 2021

...STORM WARNING THROUGH SUNDAY...

.TONIGHT...S wind 40 to 50 kt. Seas 15 to 23 ft. Rain.
.SUN...SW wind 40 to 50 kt. Seas 20 to 29 ft.
.SUN NIGHT...SW wind 30 to 45 kt. Seas 18 to 27 ft.
.MON...W wind 25 to 35 kt. Seas 14 to 19 ft.
.MON NIGHT...W wind 30 kt. Seas 13 ft.
.TUE THROUGH THU...SW wind 15 to 30 kt. Seas 9 to 14 ft.

$$

PKZ414-281345-
Bering Sea Offshore East of 171W-
242 PM AKDT Sat Mar 27 2021

...GALE WARNING THROUGH SUNDAY NIGHT...
...HEAVY FREEZING SPRAY WARNING TONIGHT...

.TONIGHT...S wind 30 to 45 kt. Seas 8 to 16 ft. Heavy freezing
spray. Snow.
.SUN...SW wind 35 to 45 kt. Seas 13 to 21 ft.
.SUN NIGHT...SW wind 35 to 45 kt. Seas 16 to 25 ft.
.MON...SW wind 25 to 40 kt. Seas 15 to 23 ft.
.MON NIGHT...W wind 20 to 30 kt. Seas 10 to 15 ft.
.TUE THROUGH THU...SW wind 15 to 30 kt. Seas 6 to 11 ft.

$$
777 
FZAK62 PAFC 281140
OFFALU

Offshore Waters Forecast
National Weather Service Anchorage AK
340 AM AKDT Sun Mar 28 2021

Offshore Waters Forecast for the Bering Sea

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.

PKZ499-290100-
340 AM AKDT Sun Mar 28 2021
.SYNOPSIS FOR CENTRAL BERING SEA...

A 979 mb low at 58N 178E this morning will move to 63N 169W Monday
morning. The low then moves inland Monday night. A front moves
into the western Bering Tuesday morning. 

$$

PKZ411-290100-
Bering Sea Offshore West of 180 and East of the International
Dateline-
340 AM AKDT Sun Mar 28 2021

...STORM WARNING TODAY...

.TODAY...W wind 35 to 50 kt. Seas 16 to 27 ft. Snow showers and rain
showers.
.TONIGHT...W wind 25 to 40 kt. Seas 14 to 20 ft.
.MON...W wind 30 kt. Seas 11 to 16 ft.
.MON NIGHT...W wind 15 to 30 kt. Seas 8 to 13 ft.
.TUE THROUGH THU...W wind 25 to 40 kt. Seas 9 to 17 ft.

$$

PKZ412-290100-
Bering Sea Offshore 171W to 180 and North of 56N-
340 AM AKDT Sun Mar 28 2021

...GALE WARNING THROUGH TONIGHT...

.TODAY...S wind 30 to 45 kt. Seas 19 to 27 ft. Rain showers and
snow showers.
.TONIGHT...SW wind 30 to 45 kt becoming W 20 to 35 kt after
midnight. Seas 16 to 27 ft. Snow showers and rain showers.
.MON...W wind 20 to 30 kt. Seas 12 to 19 ft. Snow showers.
.MON NIGHT...NW wind 20 to 30 kt. Seas 10 to 14 ft.
.TUE...W wind 15 to 30 kt. Seas 6 to 11 ft.
.WED...E wind 15 to 30 kt. Seas 6 to 11 ft.
.THU...W wind 20 to 35 kt. Seas 9 to 17 ft.

$$

PKZ413-290100-
Bering Sea Offshore 171W to 180 and South of 56N-
340 AM AKDT Sun Mar 28 2021

...STORM WARNING TODAY...

.TODAY...SW wind 40 to 50 kt. Seas 20 to 29 ft.
.TONIGHT...SW wind 30 to 45 kt. Seas 18 to 27 ft. Rain.
.MON...W wind 35 kt. Seas 14 to 19 ft.
.MON NIGHT...W wind 30 kt. Seas 11 to 15 ft.
.TUE THROUGH THU...W wind 25 to 40 kt. Seas 9 to 17 ft.

$$

PKZ414-290100-
Bering Sea Offshore East of 171W-
340 AM AKDT Sun Mar 28 2021

...GALE WARNING THROUGH MONDAY...

.TODAY...SW wind 35 to 45 kt. Seas 14 to 22 ft.
.TONIGHT...SW wind 35 to 45 kt. Seas 17 to 25 ft.
.MON...SW wind 25 to 40 kt. Seas 14 to 22 ft.
.MON NIGHT...W wind 20 to 30 kt. Seas 11 to 16 ft.
.TUE...NW wind 15 to 30 kt. Seas 7 to 12 ft.
.WED...NE wind 15 to 30 kt. Seas 5 to 10 ft.
.THU...S wind 20 to 35 kt. Seas 9 to 14 ft.

$$

What forecasters said that day

The local office's own words before this heavy freezing spray warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Anchorage, AK wrote its last area forecast discussion before this heavy freezing spray warning went out at Mar 25, 4:09 PM AKDT, 11 hours 47 minutes earlier.

Area forecast discussion, Mar 25, 4:09 PM AKDT, 11 hours 47 minutes before
Southcentral and Southwest Alaska Forecast Discussion
National Weather Service Anchorage AK
409 PM AKDT Thu Mar 25 2021

.ANALYSIS AND UPPER LEVELS...
The upper level jet is nearly zonal, extending along the Aleutians,
Alaska Peninsula, then slightly northeastward across the western
to northern Gulf of Alaska. A broad long-wave trough is situated
over the Bering Sea and mainland Alaska with strong ridging to the
south over the North Pacific. As would be expected in this
pattern, weather is relatively quiet across much of the region.
There are some local areas of snow, with Winter Weather Advisories
in effect this morning for portions of interior Bristol Bay,
Anchorage and the Matanuska Valley. Weak upper level waves
embedded within deep southwest flow have aided in snow production
along the west side of the Alaska and Aleutian Ranges, with
reports of 10" or more snow accumulation in the Iliamna area. An
approaching cold front is helping enhance upward vertical motion
and keep snow going in these areas. Snow is also falling along
the west side of the Kenai, Chugach, and Talkeetna Mountains, with
light snow accumulation in Anchorage and the Matanuska Valley.
In all of the aforementioned areas, the upper level forcing is
fairly weak, while low level upslope flow is moderate to strong,
leading to higher snowfall along the mountains. As seen in water
vapor and infrared satellite imagery, much of the deep upper level
moisture has shifted off to the east. Thus, the snow production
is increasingly due to low level processes of cold air advection
and/or upslope flow. As a result, snow accumulation will become
even more focused right along the mountains. Lastly, snow is also
falling across eastern Prince William Sound (Cordova/Valdez) and
portions of the Copper River Basin. For the remainder of the
forecast area from the southern mainland out along the Aleutian
Islands, weather is quite benign.

&&

.MODEL DISCUSSION...
Models are in excellent agreement with evolution of large scale
features over the next few days. The primary short-term challenges
include snow accumulation as upslope flow lingers over the
southern mainland tonight. Overall forecast confidence is high.

&&

.AVIATION...
PANC...Areas of light snow will persist in the Anchorage area into
the overnight hours. However, with most of the forcing coming
from upslope flow along the mountains, expect the terminal will
be mostly dry. If it does snow this afternoon or evening, it
should be very brief in nature. Low level flow will shift to
northwest around 09Z as a surface cold front arrives. the the
layer of cold and dry air advection will be shallow, think it's
enough to provide for VFR ceilings at the terminal. Suspect there
may be localized areas of IFR ceilings lingering in Cook Inlet
and/or east Anchorage/along the mountains.

&&

.SHORT TERM FORECAST SOUTHCENTRAL ALASKA (tonight through Sunday
afternoon)...

Upslope flow snow will continue, but gradually taper off
throughout the evening hours. Snow will linger the longest at
higher elevations from the Talkeetna Mountains southward through
the spine of the Kenai Mountains. Colder air filters through the
Alaska Range overnight tonight. The big question is, will it be
enough to erode the shallow moisture that is currently over much
of Cook Inlet through the Susitna Valley. Current thinking is that
the cold advection will not be strong enough to completely erode
the clouds which will stick around into Friday. Otherwise the
incoming cold air, coupled with a weak low pressure in the
northern Gulf will facilitate an uptick in gap winds along the
north Gulf coast Saturday into Sunday. The winds will not be an
high-end event but will get a little gusty in the preferred
locations. Overall, temperatures will continue to be slightly
below normal, especially minimum temperatures. However, it is hard
to deny the sun in March, maximum temperatures will still recover
quickly up to near freezing.

&&

.SHORT TERM FORECAST SOUTHWEST ALASKA (Days 1 through 3: Today
through Sunday afternoon)...

A series of upper shortwaves will continue to bring scattered snow
showers to much of the region through Saturday morning. No
significant accumulations are expected. Colder temperatures will
build in Friday night as an upper trough moves over Southwest
Alaska. A trailing ridge will bring brief clearing Saturday
afternoon and evening. A front will move onshore over the
Kuskokwim Delta coast early Sunday morning. Temperatures will warm
with the combination of an upper ridge and strong southerly
surface flow. It is therefore a bit too early to determine
impacts, however if temperatures did remain below freezing, snow
and blowing snow would be likely.

&&

.SHORT TERM FORECAST BERING SEA/ALEUTIANS (Days 1 through 3: Today
through Sunday afternoon)...

A weakening low moving southward near Saint Matthew Island will
bring scattered showers to the central/eastern Aleutians through
Saturday morning. Gusty winds of up to 55 mph are possible out of
bay and passes on the Pacific side of the eastern Aleutians and
Alaska Peninsula on Saturday as pressure gradients increase
between a Gulf low and a high over the North Pacific. The high
will build over this area through Sunday afternoon leading to
more benign conditions. A front will track across the western
Bering Saturday bringing strong southerly winds and moderate
rainfall, gradually weakening as it tracks eastward through
Sunday.

&&

.MARINE (Days 3 through 5: Sunday through Tuesday)...

Gulf of Alaska: Confidence is high for widespread northwesterly
gale force winds with storm force gusts around Kodiak Island,
diminishing late Sun. Upper level support brings widespread
westerly gale force winds across the Gulf, diminishing Tue. Seas
to 15 feet, mostly across the Southern Gulf, subsiding.

Bering: A wind wrapped Western Bering low moves into Norton Sound
by Tue. Confidence is high for widespread high end gale force
winds and waves with storm force gusts and freezing spray over the
Western and Central Bering, diminishing Mon. Winds will continue
diminishing to northerly small craft over the Eastern Bering by
Tue. Seas to 33 feet Pacific side, 24 feet Bering side, subsiding.

&&

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

The upper level flow will become more amplified during the
extended period, though remain progressive. Starting on Sunday,
a large and deep low will track northeastward across the Bering
Sea with a frontal system moving onshore of western Alaska.
Temperatures look cold enough along the Kuskokwim Delta coast to
produce snow and blowing snow as the frontal precipitation first
arrives. However, strong southwesterly flow behind the front
should bring in some warmer air off the Bering Sea. It looks like
a sustained period of long fetch southwesterlies across the
southern Bering and into Southwest Alaska and thus potential for
high surf or coastal flooding Sunday through Monday. Stay tuned
as we get closer and can better evaluate storm surge timing in
relationship to tidal cycles. Meanwhile, Southcentral will be cold
and dry out ahead of this storm Sunday, with gap winds along the
coast. Snow will spread into Southcentral with the frontal system
Sunday night through Monday.

Uncertainty grows Tuesday through Wednesday with handling of the
upper trough as it transitions from the Bering Sea and western
Alaska to Southcentral and the Gulf. With multiple waves embedded
within the larger trough, models differ on amplitude, tilt, and
track of this trough, leading to a variety of solutions for
weather over Southcentral and the Gulf all the way through
Wednesday. All models indicate some snow for Southcentral for
the first half of the week. The question is whether there is
significant snowfall anywhere. In any case, this trough/storm
should exit by Thursday, with another round of cold air advection
and gap winds behind it. Out west, another storm will race across
the Bering Sea in the fast upper level flow.

&&

.AFC WATCHES/WARNINGS/ADVISORIES...
PUBLIC...NONE.
MARINE...Gale Warning: 165,177,178,179,185,411,412,414.
FIRE WEATHER...NONE.

&&

SYNOPSIS AND MODEL DISCUSSION...SB
SOUTHCENTRAL ALASKA...ML
SOUTHWEST ALASKA/BERING SEA/ALEUTIANS...AP
MARINE/LONG TERM...MK

In the hours before

Local storm report, Mar 26, 1:50 AM AKDT, 2 hours 6 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
150 AM AKDT FRI MAR 26 2021

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

0900 AM     SNOW             CHICKALOON, AK          61.80N 148.48W
03/25/2021  E15.0 INCH       MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            SPOTTER ESTIMATED ABOUT 15 INCHES OF SNOW.

&&

ED
Local storm report, Mar 26, 1:51 AM AKDT, 2 hours 5 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
151 AM AKDT FRI MAR 26 2021

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

0900 AM     SNOW             INDEPENDENCE MINE       61.82N 149.24W
03/25/2021  E10.0 INCH       MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            SPOTTER ESTIMATED 10 INCHES OF SNOW.

&&

ED
Local storm report, Mar 26, 1:56 AM AKDT, 2 hours before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE ANCHORAGE AK
156 AM AKDT FRI MAR 26 2021

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

0900 AM     SLEET            SKEETAWK, AK            61.74N 149.24W
03/25/2021  M9.8 INCH        MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            SPOTTER MEASURED 9.8 INCHES OF GRAUPEL.

&&

ED
Local storm report, Mar 26, 1:57 AM AKDT, 1 hour 59 minutes before
PRELIMINARY LOCAL STORM REPORT...SUMMARY
NATIONAL WEATHER SERVICE ANCHORAGE AK
157 AM AKDT FRI MAR 26 2021

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

0657 AM     SNOW             4 WNW PALMER            61.62N 149.21W
03/25/2021  E1.5 INCH        MATANUSKA-SUSITNA  AK   NWS EMPLOYEE

            OVER PAST 9 HRS. -SN FALLING.

0758 AM     SNOW             1 SSE SUTTON            61.71N 148.87W
03/25/2021  E4.4 INCH        MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            SNOW STARTED 730PM LAST NIGHT. FAST RATE OF
            FALL. CALM WINDS. 25F. HIGH YESTERDAY 39F.

0900 AM     SLEET            SKEETAWK, AK            61.74N 149.24W
03/25/2021  M9.8 INCH        MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            SPOTTER MEASURED 9.8 INCHES OF GRAUPEL.

0900 AM     SNOW             INDEPENDENCE MINE       61.82N 149.24W
03/25/2021  E10.0 INCH       MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            SPOTTER ESTIMATED 10 INCHES OF SNOW.

0900 AM     SNOW             CHICKALOON, AK          61.80N 148.48W
03/25/2021  E15.0 INCH       MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            SPOTTER ESTIMATED ABOUT 15 INCHES OF SNOW.

0934 AM     SNOW             1 NNW PALMER            61.61N 149.12W
03/25/2021  E3.5 INCH        MATANUSKA-SUSITNA  AK   NWS EMPLOYEE

            VIS 3/8SM SN FZFG. CALM WINDS. PERIOD OF
            SNOW PELLETS BET. 7-8AM.

1258 PM     SNOW             1 NNW PALMER            61.61N 149.12W
03/25/2021  E5.8 INCH        MATANUSKA-SUSITNA  AK   NWS EMPLOYEE

            UPDATE VIS <1/2SM SN FZFG.

0105 PM     SNOW             4 ENE MEADOW LAKES      61.64N 149.49W
03/25/2021  M3.1 INCH        MATANUSKA-SUSITNA  AK   NWS EMPLOYEE

            3.1 INCHES TOTAL SINCE LAST NIGHT. 33
            DEGREES AND NOT CURRENTLY SNOWING.

0107 PM     SNOW             1 N PALMER              61.62N 149.11W
03/25/2021  M6.0 INCH        MATANUSKA-SUSITNA  AK   NWS EMPLOYEE

            MEASURED 5.75 INCHES TOTAL. VIS LESS THAN
            ONE HALF MILE.

0222 PM     SNOW             SUTTON                  61.72N 148.88W
03/25/2021  M9.5 INCH        MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

0446 PM     SNOW             14 S TALKEETNA          62.14N 150.03W
03/25/2021  M7.0 INCH        MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            STORM TOTAL 7 INCHES. CURRENT SNOW DEPTH 37
            INCHES. SEASON SNOWFALL TO DATE 103.6
            INCHES.

0515 PM     SNOW             1 NNW PALMER            61.62N 149.13W
03/25/2021  M8.0 INCH        MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            STORM TOTAL 8 INCHES.

0652 PM     SNOW             4 SSW MEADOW LAKES      61.56N 149.66W
03/25/2021  M4.5 INCH        MATANUSKA-SUSITNA  AK   PUBLIC

0811 PM     SNOW             4 WNW PALMER            61.62N 149.21W
03/25/2021  E8.0 INCH        MATANUSKA-SUSITNA  AK   TRAINED SPOTTER

            8 INCHES SNOW FELL SINCE 10PM MARCH 24.

0721 AM     SNOW             5 W STERLING            60.51N 150.93W
03/25/2021  E1.0 INCH        KENAI PENINSULA    AK   NWS EMPLOYEE

            LOW OVC. LGT WNDS. 38F.

0600 AM     SNOW             3 S ANCHORAGE           61.17N 149.90W
03/25/2021  E1.0 INCH        ANCHORAGE          AK   PUBLIC

            SNOW PLOW MAINTENANCE INDIVIDUAL ESTIMATES 1
            INCH NEW SNOW.

0630 AM     SNOW             13 SE KNIK              61.30N 149.53W
03/25/2021  E1.7 INCH        ANCHORAGE          AK   NWS EMPLOYEE

            SNOW OVERNIGHT -DZ AT 1030PM. 29F.

0722 AM     SNOW             9 SE ANCHORAGE          61.12N 149.71W
03/25/2021  E1.0 INCH        ANCHORAGE          AK   TRAINED SPOTTER

            OVC. 33F. 10 HR SNOWFALL. VIS E 2 W 10.
            BREEZY.

0931 AM     SNOW             10 SSE ANCHORAGE        61.08N 149.78W
03/25/2021  E1.0 INCH        ANCHORAGE          AK   PUBLIC

            HEAVY WET SNOW. -SN STILL FALLING.

1000 AM     SNOW             5 SW ANCHORAGE          61.16N 149.98W
03/25/2021  M1.4 INCH        ANCHORAGE          AK   NWS EMPLOYEE

            1.4 INCHES AS OF 10AM.

0127 PM     SNOW             2 ESE POTTER HILL       61.08N 149.78W
03/25/2021  M2.0 INCH        ANCHORAGE          AK   TRAINED SPOTTER

            STORM TOTAL 2 INCHES. ONE INCH OVERNIGHT,
            ANOTHER INCH THIS AFTERNOON. STEADY SNOW FOR
            LAST HOUR.

0208 PM     SNOW             9 SE ANCHORAGE          61.12N 149.71W
03/25/2021  M2.0 INCH        ANCHORAGE          AK   TRAINED SPOTTER

0552 PM     SNOW             8 SSE EAGLE RIVER       61.25N 149.44W
03/25/2021  M5.0 INCH        ANCHORAGE          AK   NWS EMPLOYEE

&&

The office that day

Everything else NWS Anchorage, AK issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Mar 26, 3:56 AM AKDTGale WarningAFC12 hr
Mar 26, 3:58 AM AKDTBrisk Wind AdvisoryAFC12 hr
Mar 26, 3:58 AM AKDTGale WarningAFC72 hr
Mar 26, 3:58 AM AKDTGale WarningAFC72 hr
Mar 26, 3:58 AM AKDTStorm WarningAFC60 hr
Mar 26, 3:58 AM AKDTHeavy Freezing Spray WarningAFC7 days
Mar 26, 3:59 AM AKDTGale WarningAFC72 hr
Mar 26, 3:59 AM AKDTSmall Craft AdvisoryAFC60 hr
Mar 26, 3:43 PM AKDTGale WarningAFC48 hr
Mar 26, 3:55 PM AKDTGale WarningAFC36 hr
Mar 26, 3:55 PM AKDTHeavy Freezing Spray WarningAFC12 hr
Mar 26, 3:57 PM AKDTStorm WarningAFC48 hr

Nearby

Heavy Freezing Spray Warnings in Alaska, 2021Every heavy freezing spray warning in 2021

Sources

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