Wind Chill Advisory 22, NWS Fairbanks, AK

058 
WWAK42 PAFG 190017
WSWWCZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
317 PM AKST Thu Feb 18 2021

AKZ210-191500-
/O.CON.PAFG.WC.Y.0022.000000T0000Z-210219T1500Z/
Northern and Interior Seward Peninsula-
Including Buckland, Deering, Candle, Council, Haycock, 
Pilgrim Springs, Serpentine Hot Springs, and Taylor
317 PM AKST Thu Feb 18 2021

...WIND CHILL ADVISORY REMAINS IN EFFECT UNTIL 6 AM AKST FRIDAY...

* WHAT...Very cold wind chills to 40 below occuring. The cold 
  wind chills will cause frostbite in as little as 10 minutes to 
  exposed skin.

* WHERE...Northern and Interior Seward Peninsula.

* WHEN...Now to 6 AM Friday.

* ADDITIONAL DETAILS...Very cold wind chills will continue 
  through early Friday. Conditions are exepcted to become less 
  severe Friday as winds decrease.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and sustained wind
speeds of 15 mph or more will create low wind chills. Frost bite
and hypothermia can occur if precautions are not taken.

$$

664 
WWAK42 PAFG 191153
WSWWCZ

URGENT - WINTER WEATHER MESSAGE
National Weather Service Fairbanks AK
253 AM AKST Fri Feb 19 2021


AKZ210-192100-
/O.EXT.PAFG.WC.Y.0022.000000T0000Z-210219T2100Z/
Northern and Interior Seward Peninsula-
Including Buckland, Deering, Candle, Council, Haycock, 
Pilgrim Springs, Serpentine Hot Springs, and Taylor
253 AM AKST Fri Feb 19 2021

...WIND CHILL ADVISORY NOW IN EFFECT UNTIL NOON AKST TODAY...

* WHAT...Very cold wind chills to 40 below occuring. The cold 
  wind chills will cause frostbite in as little as 10 minutes to 
  exposed skin.

* WHERE...Northern and Interior Seward Peninsula.

* WHEN...Through noon today.

* ADDITIONAL DETAILS...Very cold wind chills will continue through
  noon today. Conditions are exepcted to become less severe this
  afternoon as winds decrease.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Chill Advisory means that cold air and sustained wind
speeds of 15 mph or more will create low wind chills. Frost bite
and hypothermia can occur if precautions are not taken.

$$

Northern Alaska Forecast Discussion
National Weather Service Fairbanks AK
355 AM AKST Thu Feb 18 2021

.SYNOPSIS...
Light snow is currently falling over portions of Northern Alaska
from the Northern Interior mainly along a band from Arctic Village
to Fort Yukon to Fairbanks and southwest to near McGrath. Snow
will increase ahead of and along this band as it slowly drifts
south and east hanging up on the Alaska Range and stalling this
evening. Moisture moving north into the Eastern Alaksa Range will
enhance snowfall where a Winter Weather Advisory issued for this
area. Snow will gradually diminish west to east and move out of
the Eastern Interior and into the Yukon by Friday evening. Along
the Arctic Coast, temperatures continue to drop and winds
continue to increase resulting in a return of dangerously cold
wind chills to the area into Friday. Wind Chill Warnings have been
issued for these areas.

&&

.DISCUSSION...
Models, the 18/00z model suite initialized well against the 00z
surface analysis and verified well against the 06z surface
analysis. Model spread is reasonable in the short range and mid
rang as well, but begins to display considerable spread in the
long range. Minimal changes where made to this forecast package
other than to slow down the south and east progression and
therefore snowfall start times in the Central Interior.

Aloft at 500 hpa, a sharp trough extends south and west over
northern Alaska from near Demarcation Point to the Seward
Peninsula as a ridge dominates southeast Alsaka and the Yukon.
the trough will continue to strength and push south and east
pushing the ridge over the Yukon to the east. The trough will
continue to dig south and east into the Northern Gulf Friday and
the Alaska Panhandle late Friday into Saturday. Very cold
temperatures will follow the trough with 850 mb temperatures at
Fairbanks dropping from around 9 below this morning to near 24
below by Friday morning. Temperatures continue to drop to around
28 below at 850 hpa over the weekend. Temperatures are expected to
remain well below normal into next week with more cold air
funneling into Northern Alaska by early next week.

On the surface a 964 mb low in the northeastern Gulf of Alaska
continues to spin moisture into the eastern Alaska Range and over
a front that continues to drift south and west over the Central
and Eastern Interior. The additional moisture along this front
will produce generally 1 to 3 inches of snow south and east of a
line from Fort Yukon to Tanana to Mcgrath. The higher terrain in
the Fortymile Country will also enhance the snowfall in this area
with 3 to 5 inches with locally heavier amounts expected. A
Winter Weather Advisory has been issued for the this area.
Heavier snowfall is also expected in the Eastern Alaska Range
where 6 to 10 inches of snow is expected through Friday. Weak low
pressure drops south out of the high Arctic to be located 250 nm
north of Demarcation Point by Friday morning and will bring
another surge of cold air to the area. A strong front wrapping
northeast around a 956 mb low in the Western Bering Sea will
weaken as it pushes into the Central and Eastern Bering Sea
Friday and Saturday.

North Slope and Brooks Range...
Cold temperatures and brutally cold wind chills have made their
return to portions of the Central and Eastern Arctic Coast where
current temperatures have fallen into the 30s and 40s below and
winds chills values have again fallen to nearly 70 below. With
colder air continuing to filter south out of the Arctic, expect
more of the same today and again tonight with several areas
approaching the 40s below or colder. Colder temperatures coupled
with gusty winds along the Arctic Coast in the 15 to 20 mph range
continue to will bring dangerously cold wind chill values to the
Beaufort Sea Coast through Friday, with Wind Chill Warnings in
effect in these areas. The Chukchi Sea Coast will experience cold
wind chills as well, but not as cold, thus Wind Chill Advisories
have been issued for tonight through Thursday afternoon. Expect a
front to sweep south out of the Arctic impacting portions of the
Northwest Alaska Coast, bring light snow to the area today with
light snow expected into the evening, with generally less than one
inch of snow.

West Coast and Western Interior...
Relatively quiet weather across much of the region through the
remainder of the week, with the exception of the southern part of
the Western Interior where a front will be the focal point of
light snow this morning before tapering off this afternoon as
most the precipitation moves out of the area. Expect generally 1
to 3 inches of snow south of the Yukon River with areas to the
north seeing little to no snowfall. Colder temperatures will
filter in today from the north first along the West Coast then
into the Western Interior as an Arctic airmass spreads south over
the area. By Friday morning, many spots in the Western Interior
could see temperatures dip into the 30s below, with a few of the
colder spots pushing the 40s below.

Central and Eastern Interior...
Light snow continues along a weak front stretching from near
Arctic Village to Fort Yukon to Fairbanks to Tanana to McGrath.
Snowfall will continue to increase today and will linger into
Friday with Generally 1 to 3 inches of snow expected over much of
the Central and Eastern Interior. Moisture moving from a storm
system in the Northern Gulf of Alaska will enhance snowfall in the
Eastern Alaska Range where a Winter Weather Advisory has been
issued for snowfall of 6 to 10 inches through Friday. The heaviest
snowfall is expected south of Black Rapids . Heavier snowfall in
also expected in the Fortymile country where 4 to 6 inches is
expected into Friday. A Winter Weather Advisory has been issued
for this area. As the precipitation exits the region Friday, skies
will begin to clear and temperature will plummet with the cold
spots seeing temperatures dip to the 30s below and cold spots
dropping to near 40 below by Saturday morning. Well below normal
temperatures are expected into next week.

Coastal Hazard Potential Days 3 and 4...None.

Extended Forecast for Days 4 through 7...
Beginning the extended period on Saturday, models show dry
conditions over Northern Alaska as an upper level Arctic trough
digs down and remains in place through the weekend. This trough
will also be responsible for bringing in colder then normal
temperatures that will filter down from the Arctic across the
North Slope and Brooks Range into the Interior through early next
week. A large low near Banks Island will swing a front south
across the Arctic Plain Monday, then south across the Eastern
Interior, increasing chances of snow into Tuesday. Attention then
shifts to the Bering where a large low will move through,
increasing snow chances and northeasterly winds for much of the
West Coast into the middle of next week.

&&

.AFG WATCHES/WARNINGS/ADVISORIES...
Wind Chill Advisory for AKZ201-AKZ202.

Wind Chill Warning for AKZ203-AKZ204.

Winter Weather Advisory for AKZ226.
&&

CCC FEB 21