Alert archive / Alaska / Winter Storm Warnings in 2017

Winter Storm Warning 32, NWS Fairbanks, AK

December 20, 2017

NWS Fairbanks, AK issued this winter storm warning at Dec 20, 2017, 4:52 AM AKST. It took effect at Dec 20, 2017, 6:00 PM AKST. It was in force for 21 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 20, 2017, 4:52 AM AKST (13:52 UTC)
In effect from
Dec 20, 2017, 6:00 PM AKST
Expired
Dec 21, 2017, 2:55 PM AKST
In force
21 hr
Issued by
NWS Fairbanks, AK

The text

As transmitted.

026 
WWAK41 PAFG 201352
WSWNSB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
452 AM AKST Wed Dec 20 2017

AKZ201-210300-
/O.NEW.PAFG.WS.W.0032.171221T0300Z-171222T1500Z/
Western Arctic Coast-
Including Wainwright, Atqasuk, Point Lay, and Cape Lisburne
452 AM AKST Wed Dec 20 2017

...WINTER STORM WARNING IN EFFECT FROM 6 PM THIS EVENING TO 6 AM
AKST FRIDAY...

* WHAT...Heavy snow and blowing snow expected. Plan on difficult
  travel conditions. Damage to power lines is possible. Total 
  snow accumulations of up to two inches, with localized amounts 
  up to 8 inches, are expected.

* WHERE...Western Arctic Coast.

* WHEN...6 PM today to 6 AM Friday.

* ADDITIONAL DETAILS...Winds gusting as high as 55 mph, gusts to
  80 mph near Cape Lisburne, will cause areas of blowing and 
  drifting snow with near whiteout conditions at times. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will make travel
very hazardous or impossible. The latest road conditions can be
obtained by calling 5 1 1.

$$

AKZ205-210300-
/O.EXT.PAFG.WW.Y.0117.000000T0000Z-171222T1500Z/
Northwestern Brooks Range-
Including Singiluk and Umiat
452 AM AKST Wed Dec 20 2017

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

* WHAT...Snow and blowing snow occurring. Areas of poor visibility
  are expected. Additional snow accumulations of 2 to 4 inches, 
  with localized amounts up to 25 inches, are expected.

* WHERE...Northwestern Brooks Range west of Howard Pass.

* WHEN...Until 6 AM Friday.

* ADDITIONAL DETAILS...Winds gusting as high as 65 mph will cause
  areas of blowing and drifting snow with near whiteout conditions
  at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause travel difficulties. The
latest road conditions can be obtained by calling 5 1 1.

$$

AKZ206-210300-
/O.CON.PAFG.WW.Y.0117.000000T0000Z-171221T2100Z/
Northeastern Brooks Range-
Including Anaktuvuk Pass, Atigun Pass, Galbraith Lake, Sagwon, 
and Franklin Bluffs
452 AM AKST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON AKST
THURSDAY...

* WHAT...Snow and blowing snow occurring. Areas of poor 
  visibility are expected. Additional snow accumulations of up to 
  two inches, with localized amounts up to 5 inches, are expected.

* WHERE...Northeastern Brooks Range.

* WHEN...Until noon Thursday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will cause
  areas of blowing and drifting snow with near whiteout conditions
  at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause travel difficulties. The
latest road conditions can be obtained by calling 5 1 1.

$$
3 follow-up statements
760 
WWAK41 PAFG 202320
WSWNSB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
220 PM AKST Wed Dec 20 2017


AKZ201-211500-
/O.EXT.PAFG.WS.W.0032.171221T0300Z-171222T0300Z/
Western Arctic Coast-
Including Wainwright, Atqasuk, Point Lay, and Cape Lisburne
220 PM AKST Wed Dec 20 2017

...WINTER STORM WARNING NOW IN EFFECT FROM 6 PM THIS EVENING TO
6 PM AKST THURSDAY...

* WHAT...Heavy snow and blowing snow expected. Plan on difficult 
  travel conditions. Damage to power lines is possible. Total 
  snow accumulations of up to two inches, with localized amounts 
  up to 8 inches, are expected.

* WHERE...Western Arctic Coast.

* WHEN...6 PM today to 6 PM Thursday.

* ADDITIONAL DETAILS...Winds gusting as high as 55 mph, gusts to 
  80 mph near Cape Lisburne, will cause areas of blowing and 
  drifting snow with near whiteout conditions at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow and blowing snow means severe
winter weather conditions are expected. This will make travel
very hazardous or impossible. The latest road conditions can be
obtained by calling 5 1 1.

$$

AKZ202-211500-
/O.EXB.PAFG.WW.Y.0117.171221T0900Z-171222T0300Z/
Northern Arctic Coast-
Including Barrow, Alaktak, Pitt Point, and Nulavik
220 PM AKST Wed Dec 20 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM MIDNIGHT TONIGHT TO
6 PM AKST THURSDAY...

* WHAT...Snow and blowing snow expected. Areas of poor visibility
  are expected. Additional snow accumulations of up to two 
  inches, with localized amounts up to 5 inches, are expected.

* WHERE...Northern Arctic Coast.

* WHEN...Midnight to 6 PM Thursday.

* ADDITIONAL DETAILS...Winds gusting as high as 40 mph will 
  cause areas of blowing and drifting snow with near whiteout 
  conditions at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means periods of
blowing snow will cause travel difficulties. The latest road
conditions can be obtained by calling 5 1 1.

$$

AKZ205-211500-
/O.CON.PAFG.WW.Y.0117.000000T0000Z-171222T1500Z/
Northwestern Brooks Range-
Including Singiluk and Umiat
220 PM AKST Wed Dec 20 2017

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

* WHAT...Snow and blowing snow occurring. Areas of poor visibility
  are expected. Additional snow accumulations up to 6 inches, are
  expected.

* WHERE...Northwestern Brooks Range west of Howard Pass.

* WHEN...Until 6 AM Friday.

* ADDITIONAL DETAILS...Winds gusting as high as 65 mph will 
  cause areas of blowing and drifting snow with near whiteout 
  conditions at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause travel difficulties. The
latest road conditions can be obtained by calling 5 1 1.

$$

AKZ206-211500-
/O.CON.PAFG.WW.Y.0117.000000T0000Z-171221T2100Z/
Northeastern Brooks Range-
Including Anaktuvuk Pass, Atigun Pass, Galbraith Lake, Sagwon, 
and Franklin Bluffs
220 PM AKST Wed Dec 20 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL NOON AKST
THURSDAY...

* WHAT...Snow and blowing snow occurring. Areas of poor visibility
  are expected. Additional snow accumulations up to 6 inches, are
  expected.

* WHERE...Northeastern Brooks Range.

* WHEN...Until noon Thursday.

* ADDITIONAL DETAILS...Winds gusting as high as 45 mph will 
  cause areas of blowing and drifting snow with near whiteout 
  conditions at times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause travel difficulties. The
latest road conditions can be obtained by calling 5 1 1.

$$
897 
WWAK41 PAFG 211236
WSWNSB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
336 AM AKST Thu Dec 21 2017

AKZ201-220300-
/O.CON.PAFG.WS.W.0032.000000T0000Z-171222T0300Z/
Western Arctic Coast-
Including Wainwright, Atqasuk, Point Lay, and Cape Lisburne
336 AM AKST Thu Dec 21 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 PM AKST THIS
EVENING...

* WHAT...Blowing snow expected. Plan on significant reductions 
  in visibility along with slick roads, resulting in difficult 
  travel conditions. Winds gusting as high as 55 mph will cause 
  widespread blowing and drifting snow.

* WHERE...Western Arctic Coast.

* WHEN...Until 6 PM today.

* ADDITIONAL DETAILS...Winds gusting as high as 55 mph will 
  cause widespread blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for blowing snow means severe winter
weather conditions are occurring. This will make travel very
hazardous or impossible. The latest road conditions can be
obtained by calling 5 1 1.

$$

AKZ206-220300-
/O.EXT.PAFG.WW.Y.0117.000000T0000Z-171224T0900Z/
Northeastern Brooks Range-
Including Anaktuvuk Pass, Atigun Pass, Galbraith Lake, Sagwon, 
and Franklin Bluffs
336 AM AKST Thu Dec 21 2017

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL MIDNIGHT AKST
SATURDAY NIGHT...

* WHAT...Snow and blowing snow occurring. Plan on slippery road 
  conditions. In addition, areas of poor visibility are 
  expected. Additional snow accumulations of up to one inch, 
  with localized amounts up to 3 inches, are expected.

* WHERE...Northeastern Brooks Range.

* WHEN...Until midnight Saturday night.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause travel difficulties. The
latest road conditions can be obtained by calling 5 1 1.

$$

AKZ202-220300-
/O.CON.PAFG.WW.Y.0117.000000T0000Z-171222T0300Z/
Northern Arctic Coast-
Including Barrow, Alaktak, Pitt Point, and Nulavik
336 AM AKST Thu Dec 21 2017

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

* WHAT...Blowing snow expected. Plan on areas of poor visibilities  
  to create difficult travel conditions at times. Winds gusting as
  high as 45 mph will cause areas of blowing and drifting snow.

* WHERE...Northern Arctic Coast.

* WHEN...Until 6 PM today.

* ADDITIONAL DETAILS...Winds gusting as high as 45 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means periods of
blowing snow will cause travel difficulties. The latest road
conditions can be obtained by calling 5 1 1.

$$

AKZ205-220300-
/O.CON.PAFG.WW.Y.0117.000000T0000Z-171222T1500Z/
Northwestern Brooks Range-
Including Singiluk and Umiat
336 AM AKST Thu Dec 21 2017

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

* WHAT...Snow and blowing snow occurring. Areas of poor 
  visibility are expected. Additional snow accumulations of up to 
  one inch, with localized amounts up to 3 inches, are expected.

* WHERE...Northwestern Brooks Range.

* WHEN...Until 6 AM Friday.

* ADDITIONAL DETAILS...Winds gusting as high as 55 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow and blowing snow means periods
of snow and blowing snow will cause travel difficulties. The
latest road conditions can be obtained by calling 5 1 1.

$$
355 
WWAK41 PAFG 212355
WSWNSB

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
255 PM AKST Thu Dec 21 2017

AKZ201-220100-
/O.CAN.PAFG.WS.W.0032.000000T0000Z-171222T0300Z/
Western Arctic Coast-
Including Wainwright, Atqasuk, Point Lay, and Cape Lisburne
255 PM AKST Thu Dec 21 2017

...WINTER STORM WARNING IS CANCELLED...


$$

AKZ202-220300-
/O.CON.PAFG.WW.Y.0117.000000T0000Z-171222T0300Z/
Northern Arctic Coast-
Including Barrow, Alaktak, Pitt Point, and Nulavik
255 PM AKST Thu Dec 21 2017

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

* WHAT...Blowing snow with areas of poor visibilities. Winds 
  gusting as high as 45 mph will cause areas of blowing and 
  drifting snow.

* WHERE...Northern Arctic Coast.

* WHEN...Until 6 PM today. Conditions will improve this evening as
  winds decrease. 

* ADDITIONAL DETAILS...Winds gusting as high as 45 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means periods of
blowing snow will cause travel difficulties. 

$$

AKZ205-221500-
/O.CON.PAFG.WW.Y.0117.000000T0000Z-171222T1500Z/
Northwestern Brooks Range-
Including Singiluk and Umiat
255 PM AKST Thu Dec 21 2017

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

* WHAT...Blowing snow occurring. Areas of poor visibility are
  expected. 

* WHERE...Northwestern Brooks Range.

* WHEN...Until 6 AM Friday.

* ADDITIONAL DETAILS...Winds gusting as high as 55 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means periods of
blowing snow will cause travel difficulties. 

$$

AKZ206-221515-
/O.CON.PAFG.WW.Y.0117.000000T0000Z-171224T0900Z/
Northeastern Brooks Range-
Including Anaktuvuk Pass, Atigun Pass, Galbraith Lake, Sagwon, 
and Franklin Bluffs
255 PM AKST Thu Dec 21 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT AKST
SATURDAY NIGHT...

* WHAT...Blowing snow with areas of poor visibility. 

* WHERE...Northeastern Brooks Range.

* WHEN...Until midnight Saturday night.

* ADDITIONAL DETAILS...Winds gusting as high as 35 mph will 
  cause areas of blowing and drifting snow.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means periods of
blowing snow will cause travel difficulties. The latest road
conditions can be obtained by calling 5 1 1.

$$

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 Fairbanks, AK wrote its last area forecast discussion before this winter storm warning went out at Dec 19, 2:35 PM AKST, 14 hours 17 minutes earlier.

Area forecast discussion, Dec 19, 2:35 PM AKST, 14 hours 17 minutes before
Northern Alaska Forecast Discussion...CORRECTED
National Weather Service Fairbanks AK
235 PM AKST Tue Dec 19 2017

.DISCUSSION...

Main forecast highlight will be a series of strong storms for the
west coast through the week. The next round is expected to hit
Wednesday into Thursday. Southwestly flow over the mainland will
bring heavy snow to the western interior and central interior
Tuesday afternoon into Wednesday. The interior is now seeing
snow move over the area from the first front that hit the west
coast yesterday. Continuity is showing the GFS and NAM are in
better agreement with the winds so we leaned more towards the GFS
for the afternoon forecast package. The west coast will see the
brunt of these storms from now through Saturday.

Surface...A 965 mb low near the Gulf of Anadyr will move over
the Bering Strait Coast tonight and then over the Chukchi Sea as
a 980 mb low Wed morning. A 980 mb low will move N over the
southern Bering Sea and be 100 NM W of St. Lawrence Island Wed
afternoon as a 976 mb low. Then track over the Chukchi sea as
a 981 mb low 12z on Thursday. Another strong low will move
in the southern Bering Thursday afternoon.
High pressure will build over the interior Thursday and Friday.

Western Interior and West Coast...A 965 mb low near the Gulf of
Anadyr and front over the Western Interior will continue to move
northwest while the low moves northwest over the Bering Strait
and Chukchi Sea through Wednesday morning. Strong southwest flow
continues to pump moisture towards the southern slopes Brooks
Range (zones 208 and 217), where 12 to 24 inches of snow
accumulation is expected through Thursday morning.

For Saint Lawrence Island and Bering Strait, the next 24 to 36
hours will be a bit tricky as there are multiple hazards to
contend with. The AKGFS22 and AKNAM12 are both indicating that a
75 to 85 kt low level jet will move over Saint Lawrence Island
Wednesday afternoon and then the Bering Strait Coast by the
evening. This low level jet will weaken some as in moves north
over the Chukchi Sea, but will still be around 65 to 70 kts. For
Saint Lawrence Island, particularly Savoonga, this will be similar
to the strong wind event where strong downslope winds caused
damage to buildings and structures. Near blizzard conditions are
also very likely in this scenario with warning level accumulating
snow. For the next round have reissued winter storm warnings for
zones 214 212 211 and 210 209 and 207 for blizzard conditions and
the high wind potential. The strongest southerly winds will be
from Wednesday afternoon into Thursday morning for these zones.

Eastern and Central Interior...Snow is already filling in on the
Pedro Dome radar this afternoon Over the Central Interior and
Middle Tanana Valley, 3 to 5 inches are expected through
Wednesday morning. Snow will taper off by Wednesday afternoon. Gap
winds in Alaska Range passes increased overnight with gusts
between 50 to 60 mph being reported. Winter weather advisories
still look good for the Alaska range. Also extended them out to
midnight tonight. Winds should be decreasing this evening. Will
see another round of stronger gap winds in the Alaska Range
Thursday morning and persist into Friday.

North Slope and Brooks Range...Visibilities have improved for
the time being over the north slope as winds have diminished
slightly. Have cancelled the blizzard warnings for the north
slope. Gusty gap winds through Brooks Range passes have resulted
in low visibility in blowing snow and snow where winter weather
advisories are in effect. There will be a slight lull in the winds
this evening but will pick up again as south to southwest winds
will increase Wednesday afternoon into Thursday where near
blizzard conditions may be possible along the western Arctic
Coast. Have extended winter weather advisories for zones 205 and
206.

Coastal Hazard Potential Short Term... A series of strong storms
moving north across the Bering and Chukchi Sea this week will
result in elevated water levels for much of western Alaska. Due to
the existing sea ice cover, there is uncertainty whether the
storms will create a significant amount of storm surge to impact
coastal communities. Shore fast ice will prevent or limit wave
runup and erosion in many locations except on Saint Lawrence
Island. There is the potential for water to cover ice, ice to push
up on south and southwest facing beaches, and minor flooding in
low lying areas. So we have issued coastal flood advisories for
zones 211 and zone 213 from 3 pm Wednesday to 9 AM Thursday.

LOCATION...From Golovin west including Nome.

COASTAL FLOODING...Storm surge and tides will combine to raise
sea levels 5 to 8 feet above the normal high tide line.

TIMING...South winds will increase to 35 to 45 mph Wednesday
afternoon and gradually diminish Thursday morning. Highest water
levels are expected Wednesday evening through Thursday morning.

IMPACTS...In Nome, minor flooding is expected in the Belmont
subdivision and along West Beach. In Golovin, the old runway and
other low lying areas will become inundated. Shore fast ice will
prevent or limit wave runup in some locations. It is likely water
will cover existing ice and ice will be lifted or pushed up on
south and southwest facing beaches.

LOCATION...Gambell and the Bering Strait Coast.

COASTAL FLOODING...Storm surge and tides will combine to raise
sea levels 3 to 6 feet above the normal high tide line. Expect
additional wave runup in Gambell and along ice free coastlines.

TIMING...South winds will increase to 40 to 65 mph Wednesday
afternoon and gradually diminish Thursday morning. Highest water
levels are expected late Wednesday afternoon through early
Thursday morning.

IMPACTS...In Gambell, storm surge combined with wave runup may
wash water over the runway and cause minor flooding at the dump.
Along the Bering Strait Coast, low lying areas will likely become
inundated. Shore fast ice will prevent or limit wave runup in some
locations. It is likely water will cover existing sea ice and ice
will push up on south and southwest facing beaches.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
Coastal Flood Advisory for AKZ211-AKZ213.

Wind Advisory for AKZ225.

Winter Storm Warning for AKZ207-AKZ208-AKZ209-AKZ210-AKZ211-
AKZ212-AKZ213-AKZ214-AKZ217-AKZ218-AKZ219.

Winter Weather Advisory for AKZ205-AKZ206-AKZ221-AKZ222-AKZ226.

Heavy Freezing Spray Warning for PKZ210-PKZ220.

Gale Warning for PKZ200-PKZ210-PKZ220-PKZ225-PKZ230.

Storm Warning for PKZ210.

Brisk Wind Advisory for PKZ215-PKZ230-PKZ235-PKZ240-PKZ245.
&&

JK DEC 17

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 20, 4:57 AM AKSTWinter Weather AdvisoryAFG51 hr

Nearby

Winter Storm Warnings in Alaska, 2017Every winter storm warning in 2017

Sources

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