Alert archive / Alaska / Winter Storm Warnings in 2021

Winter Storm Warning 32, NWS Juneau, AK

December 3, 2021

NWS Juneau, AK issued this winter storm warning at Dec 3, 2021, 12:14 PM AKST. It was in force for 17 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
Dec 3, 2021, 12:14 PM AKST (21:14 UTC)
Expired
Dec 4, 2021, 5:10 AM AKST
In force
17 hr
Issued by
NWS Juneau, AK

The text

As transmitted.

937 
WWAK47 PAJK 032114
WSWAJK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Juneau AK
1214 PM AKST Fri Dec 3 2021

AKZ026-040600-
/O.UPG.PAJK.WW.Y.0049.000000T0000Z-211204T0300Z/
/O.NEW.PAJK.WS.W.0032.211203T2114Z-211204T0600Z/
Inner Channels from Kupreanof Island to Etolin Island-
Including the cities of Petersburg, Wrangell, and Kake
1214 PM AKST Fri Dec 3 2021

...WINTER STORM WARNING IN EFFECT UNTIL 9 PM AKST THIS EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 2 to 4 
  inches.

* WHERE...Petersburg, Wrangell and Kake.

* WHEN...Until 9 PM AKST this evening.

* IMPACTS...Plan on slippery road conditions. The hazardous 
  conditions could impact the evening commute.

* ADDITIONAL DETAILS...Upwards of 5.5 inches of snow accumulation
  was reported in Petersburg from this morning to noon. More bands
  of snow are expected through the afternoon and evening hours.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. 

&&

$$

AKZ027>029-040300-
/O.CON.PAJK.WW.Y.0049.000000T0000Z-211204T0300Z/
Dixon Entrance to Cape Decision Coastal Area-
Southern Inner Channels-Misty Fjords-
Including the cities of Craig, Klawock, Ketchikan, Metlakatla, 
and Hyder
1214 PM AKST Fri Dec 3 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 PM AKST THIS
EVENING...

* WHAT...Snow showers. Additional snow accumulations of 2 to 4 
  inches over the southern Panhandle, except 5 to 7 inches of 
  snowfall near Hyder.

* WHERE...Highest amounts near Hyder. Lower amounts on Prince of 
  Wales Island and the southern Inner Channels including 
  Ketchikan, Craig, Klawock, Thorne Bay, Hollis, Hydaburg.

* WHEN...Until 6 PM AKST Friday.

* IMPACTS...Plan on slippery road conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

&&

$$

http://www.weather.gov/juneau
4 follow-up statements
786 
WWAK47 PAJK 040251
WSWAJK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Juneau AK
551 PM AKST Fri Dec 3 2021

AKZ026-040600-
/O.CON.PAJK.WS.W.0032.000000T0000Z-211204T0600Z/
Inner Channels from Kupreanof Island to Etolin Island-
Including the cities of Petersburg, Wrangell, and Kake
551 PM AKST Fri Dec 3 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 9 PM AKST THIS
EVENING...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 3
  inches, mainly in the evening.

* WHERE...Petersburg, Wrangell, Coffman Cove, and Kake.

* WHEN...Until 9 PM AKST this evening.

* IMPACTS...Road conditions will likely be very slippery. Snow
  squalls will significantly lower visibility at times. Use
  caution while driving. 

* ADDITIONAL DETAILS...Snow accumulations have amounted from a few
  inches up to 13 inches in Petersburg during the last 36 hours. 
  More bands of snow are expected this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency.

&&

$$

AKZ027>029-040600-
/O.EXT.PAJK.WW.Y.0049.000000T0000Z-211204T0900Z/
Dixon Entrance to Cape Decision Coastal Area-
Southern Inner Channels-Misty Fjords-
Including the cities of Craig, Klawock, Ketchikan, Metlakatla, 
and Hyder
551 PM AKST Fri Dec 3 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT AKST
TONIGHT...

* WHAT...Snow showers. Expect 1 to 2 inches, potentially quick
  inches in occasional heavy showers for the southern Panhandle.

* WHERE...Prince of Wales Island, Misty Fjords, and the southern
  Inner channels. Highest amounts this evening will be on Prince
  of Wales Island and in Hyder.

* WHEN...Through midnight Friday night.

* IMPACTS...Road conditions can be slippery. Snow squalls can
  lower visibility. Exercise caution when driving. 

* ADDITIONAL DETAILS...Snow showers are expected to lessen
  overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

&&

$$

http://www.weather.gov/juneau
075 
WWAK47 PAJK 040557
WSWAJK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Juneau AK
857 PM AKST Fri Dec 3 2021

AKZ026-040900-
/O.EXT.PAJK.WS.W.0032.000000T0000Z-211204T1500Z/
Inner Channels from Kupreanof Island to Etolin Island-
Including the cities of Petersburg, Wrangell, and Kake
857 PM AKST Fri Dec 3 2021

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM AKST SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 5 
  inches.

* WHERE...Inner Channels from Kupreanof Island to Etolin Island
  including Petersburg.

* WHEN...Until 6 AM AKST Saturday.

* IMPACTS...Roads are very slick. Heavy snow will be difficult to
  manage.

* ADDITIONAL DETAILS...Wrangell received 3 to 4 inches today while
  Petersburg received 4 inches between 2 PM and 8 PM today. Heavy
  snow showers are likely overnight. Accumulations will be highly
  variable in showers with quicker accumulations at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

AKZ027-028-040900-
/O.EXT.PAJK.WW.Y.0049.000000T0000Z-211204T1500Z/
Dixon Entrance to Cape Decision Coastal Area-
Southern Inner Channels-
Including the cities of Craig, Klawock, Ketchikan, and Metlakatla
857 PM AKST Fri Dec 3 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM AKST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...Prince of Wales Island and the southern Inner Channels.

* WHEN...Until 6 AM AKST Saturday.

* IMPACTS...Road conditions are slick.

* ADDITIONAL DETAILS...Snow shower accumulations will be highly
  variable with quick accumulations possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

AKZ029-040900-
/O.CON.PAJK.WW.Y.0049.000000T0000Z-211204T0900Z/
Misty Fjords-
Including the city of Hyder
857 PM AKST Fri Dec 3 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT AKST
TONIGHT...

* WHAT...Snow. Additional snow accumulations of up to one inch.

* WHERE...Misty Fjords.

* WHEN...Until midnight AKST tonight.

* IMPACTS...Plan on slippery road conditions.

* ADDITIONAL DETAILS...Snow showers will ease overnight.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

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

&&

$$

http://www.weather.gov/juneau
733 
WWAK47 PAJK 040854
WSWAJK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Juneau AK
1154 PM AKST Fri Dec 3 2021

AKZ029-041000-
/O.EXP.PAJK.WW.Y.0049.000000T0000Z-211204T0900Z/
Misty Fjords-
Including the city of Hyder
1154 PM AKST Fri Dec 3 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT MIDNIGHT AKST TONIGHT...

$$

AKZ026-041500-
/O.CON.PAJK.WS.W.0032.000000T0000Z-211204T1500Z/
Inner Channels from Kupreanof Island to Etolin Island-
Including the cities of Petersburg, Wrangell, and Kake
1154 PM AKST Fri Dec 3 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM AKST
SATURDAY...

* WHAT...Heavy snow. Additional snow accumulations of 1 to 5 
  inches.

* WHERE...Inner Channels from Kupreanof Island to Etolin Island 
  including Petersburg.

* WHEN...Until 6 AM AKST Saturday.

* IMPACTS...Roads are very slick. Heavy snow will be difficult 
  to manage.

* ADDITIONAL DETAILS...Wrangell received 3 to 4 inches yesterday
  while Petersburg received 4 inches between 2 PM and 8 PM
  yesterdays. Heavy snow showers are likely tonight.  
  Accumulations will be highly variable in showers with quicker 
  accumulations at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

AKZ027-028-041500-
/O.CON.PAJK.WW.Y.0049.000000T0000Z-211204T1500Z/
Dixon Entrance to Cape Decision Coastal Area-
Southern Inner Channels-
Including the cities of Craig, Klawock, Ketchikan, and Metlakatla
1154 PM AKST Fri Dec 3 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST
SATURDAY...

* WHAT...Snow. Additional snow accumulations of 1 to 3 inches.

* WHERE...Prince of Wales Island and the southern Inner Channels.

* WHEN...Until 6 AM AKST Saturday.

* IMPACTS...Road conditions are slick.

* ADDITIONAL DETAILS...Snow shower accumulations will be highly 
  variable with quick accumulations possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling.

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

&&

$$

http://www.weather.gov/juneau
888 
WWAK47 PAJK 041410
WSWAJK

URGENT - WINTER WEATHER MESSAGE
National Weather Service Juneau AK
510 AM AKST Sat Dec 4 2021

AKZ026-041515-
/O.CAN.PAJK.WS.W.0032.000000T0000Z-211204T1500Z/
Inner Channels from Kupreanof Island to Etolin Island-
Including the cities of Petersburg, Wrangell, and Kake
510 AM AKST Sat Dec 4 2021

...WINTER STORM WARNING IS CANCELLED...

Heavy snowfall has ended. Light snow showers with minor 
accumulations early this morning will end before noon. 

$$

AKZ027-028-041515-
/O.CAN.PAJK.WW.Y.0049.000000T0000Z-211204T1500Z/
Dixon Entrance to Cape Decision Coastal Area-
Southern Inner Channels-
Including the cities of Craig, Klawock, Ketchikan, and Metlakatla
510 AM AKST Sat Dec 4 2021

...WINTER WEATHER ADVISORY IS CANCELLED...

Heavy snowfall has ended. Light snow showers with minor 
accumulations early this morning will end before noon.

$$

http://www.weather.gov/juneau

What forecasters said that day

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

NWS Juneau, AK wrote its last area forecast discussion before this winter storm warning went out at Dec 3, 6:09 AM AKST, 6 hours 5 minutes earlier.

Area forecast discussion, Dec 3, 6:09 AM AKST, 6 hours 5 minutes before
Southeast Alaska Forecast Discussion
National Weather Service Juneau AK
609 AM AKST Fri Dec 3 2021

.SHORT TERM.../Today through Tonight/...The broad area of low
pressure generally stayed farther west and northwest of what the
ensembles and deterministic models showed on previous
packages...still hanging back around 56.6N/144.3W. The low is
expected to continue a gradual track off to the southeast and
filling gradually as it moves to near Cape Decision tonight. The main
consideration for the morning's forecast package has been
extending the Winter Weather Advisory for the Petersburg area
through 9 AM AKST given persistent moderate snowfall totally 4.5
inches overnight. Snow continues to fall there at rates
consistent with the overnight values. If this continues through
mid morning, an additional extension to the advisory may be
required. Winter Weather Advisories will also stay posted for the
southern Panhandle zones through 6 PM this evening for continued
track of moderate snow showers off the Gulf on the SE side of the
broad low. Accumulations expected will range from 2 to 4 inches
around Prince of Wales Island...and 5 to 7 inches in Misty Fjords
through 6 PM this evening. Overall, coverages of snow showers in
the south should diminish through the evening hours as the low
weakens.

.LONG TERM.../Saturday through Tuesday night/...The mid-range
starts with a trough exiting to the southeast with more onshore
flow in its wake. The risk of snow showers continues through the
weekend, better chance for the north on Saturday and the south on
Sunday. It will be plenty cold throughout the atmospheric column
to support snow across the panhandle, so those areas that do
experience one or more showers could pick up a few inches of snow.
Amounts and rates will be variable due to the showery nature, but
generally look to remain below advisory criteria. Temperatures
were nudged downward for northern Lynn Canal on Saturday as cold
air from the Yukon makes its way across the border with northerly
flow.

The next low pressure system tracks along the AK peninsula to near
Prince William Sound by late Monday night. This will push a front
towards the panhandle Monday for Yakutat into Tuesday for the rest
of the panhandle. Flow is expected to turn southwesterly as the
front approaches, which brings the rain/snow line into play once
again. 850mb temps and 1000-850mb thickness values suggest that
the central and northern panhandle will start as a period of snow
with the rain/snow line getting as far north as the Icy Strait
corridor by Tuesday morning. This will need to be watched because
given the cold air in place, warning or advisory level snowfall
may occur before mixing with rain - specifically for Yakutat,
Juneau, and the Icy Strait corridor. Forecast winds were increased
and the timing adjusted with the arrival of the front, but
remained small craft strength for now.

Forecast confidence for the weekend is below average as is typical
in a showery pattern, especially regarding the snow amount and
location details. Confidence in the overall pattern evolution
regarding the front arrival early next week is above average.

&&

.AJK WATCHES/WARNINGS/ADVISORIES...
PUBLIC...Winter Weather Advisory until 9 AM AKST this morning for AKZ026.
     Winter Weather Advisory until 6 PM AKST this evening for
     AKZ027>029.
     Strong Wind from noon AKST today through this evening for AKZ018.
MARINE...Small Craft Advisory for PKZ012-013-022-041>043-051>053.

&&

Fritsch/Garmon/BFL

Visit us at http://www.weather.gov/Juneau

In the hours before

Local storm report, Dec 3, 6:29 AM AKST, 5 hours 45 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JUNEAU AK
629 AM AKST FRI DEC 3 2021

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

0555 AM     SNOW             PETERSBURG              56.81N 132.96W
12/03/2021  M4.5 INCH        PETERSBURG CENSUS AAK   TRAINED SPOTTER

            MEASURED 4.5 INCHES OF NEW SNOW OVERNIGHT.

&&

FCF
Local storm report, Dec 3, 8:56 AM AKST, 3 hours 18 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JUNEAU AK
856 AM AKST FRI DEC 3 2021

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

0746 AM     SNOW             7 SSE HAINES            59.14N 135.36W
12/03/2021  M7.0 INCH        HAINES             AK   PUBLIC

            7 INCHES OVERNIGHT AT MUD BAY. CURRENTLY 17
            DEGREES.

&&
Local storm report, Dec 3, 9:54 AM AKST, 2 hours 20 minutes before
PRELIMINARY LOCAL STORM REPORT
NATIONAL WEATHER SERVICE JUNEAU AK
954 AM AKST FRI DEC 3 2021

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

0700 AM     SNOW             SITKA                   57.05N 135.33W
12/03/2021  E10.0 INCH       SITKA              AK   PUBLIC

            ADDITIONAL 5 INCHES OF SNOW SINCE YESTERDAY
            MORNING. NEIGHBOR REPORTED 12 INCHES STORM
            TOTAL, ALSO REPORTS 10 INCHES STORM TOTAL AT
            SOMER DR. AND 12 INCHES OUT AT BLUE LAKE.

&&

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 3, 4:23 AM AKSTSmall Craft AdvisoryAJK42 hr

Nearby

Winter Storm Warnings in Alaska, 2021Every winter storm 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.