Alert archive / California / Winter Storm Watches in 2021

Winter Storm Watch 8, NWS Eureka, CA

December 20, 2021

NWS Eureka, CA issued this winter storm watch at Dec 20, 2021, 2:24 AM PST. It took effect at Dec 22, 2021, 1:00 PM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 20, 2021, 2:24 AM PST (10:24 UTC)
In effect from
Dec 22, 2021, 1:00 PM PST
Expired
Dec 21, 2021, 1:40 PM PST
In force
Issued by
NWS Eureka, CA

The text

As transmitted.

219 
WWUS46 KEKA 201024
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
224 AM PST Mon Dec 20 2021

...Quick-hitting Winter Storm to bring Tricky Travel Conditions
in Trinity County on Tuesday...

...Heavy snowfall expected above 3500ft in Trinity County late
Wednesday and Thursday...

.The first in several rounds of precipitation expected to impact
northwest California through the holiday weekend will arrive in
Trinity County Tuesday. Snow levels will start around 2500ft and
rise to around 3500ft overnight. A dusting is possible at
locations as low as Weaverville, but most light snow will fall
above 3000ft. Precipitation will taper off early Wednesday. Snow 
levels are expected to be mainly above 4000ft with the next round
of precipitation late Wednesday into Thursday, before much colder
air begins flowing in late Thursday through the weekend.

CAZ107-201830-
/O.NEW.KEKA.WS.A.0008.211222T1800Z-211223T1800Z/
/O.EXT.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
Northern Trinity-
224 AM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY ABOVE 2500 FEET...
...WINTER STORM WATCH IN EFFECT FROM WEDNESDAY MORNING THROUGH
THURSDAY MORNING ABOVE 3500 FEET...

* WHAT...For the Winter Weather Advisory above 2500 feet, wet snow
  expected. Total snow accumulations of 3 to 6 inches. For the
  Winter Storm Watch above 3500 feet, heavy snow possible. Total
  snow accumulations of 7 to 14 inches possible.

* WHERE...Northern Trinity County.

* WHEN...For the Winter Weather Advisory, from 10 AM to 10 PM 
  PST Tuesday. For the Winter Storm Watch, from Wednesday 
  morning through Thursday morning.

* IMPACTS...Travel could be difficult over mountain passes along
  Highways 299, 36, and especially 3. Plan on slippery and 
  potentially snow- covered roads. Chains may be required over 
  some mountain passes.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$

CAZ108-201830-
/O.EXT.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
Southern Trinity-
224 AM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 10 AM TO 10 PM PST
TUESDAY ABOVE 2500 FEET...

* WHAT...Wet snow expected above 2500 feet. Total snow
  accumulations of 2 to 5 inches.

* WHERE...Southern Trinity County.

* WHEN...From 10 AM to 10 PM PST Tuesday.

* IMPACTS...Travel could be difficult over mountain passes along
  Highways 3 and 36. Plan on slippery and potentially snow-
  covered roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$
7 follow-up statements
221 
WWUS46 KEKA 201033 AAA
WSWEKA

URGENT - WINTER WEATHER MESSAGE...UPDATED
National Weather Service Eureka CA
233 AM PST Mon Dec 20 2021

...Quick-hitting Winter Storm to bring Tricky Travel Conditions
in Trinity County on Tuesday...

...Heavy Snowfall Expected Above 3500 feet in Trinity County Late
Wednesday and Thursday...

.The first in several rounds of precipitation expected to impact
northwest California through the holiday weekend will arrive in
Trinity County Tuesday. Snow levels will start around 2500 feet 
and rise to around 3500 feet overnight. A dusting is possible at 
locations as low as Weaverville, but most light snow will fall 
above 3000 feet. Precipitation will taper off early Wednesday. 
Snow levels are expected to be mainly above 4000 feet with the 
next round of precipitation late Wednesday into Thursday, before 
much colder air begins flowing in late Thursday through the 
weekend.

CAZ107-201845-
/O.CON.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
/O.CON.KEKA.WS.A.0008.211222T1800Z-211223T1800Z/
Northern Trinity-
233 AM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
PST TUESDAY ABOVE 2500 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH THURSDAY MORNING ABOVE 3500 FEET...

* WHAT...For the Winter Weather Advisory above 2500 feet, wet 
  snow expected. Total snow accumulations of 3 to 6 inches. For 
  the Winter Storm Watch above 3500 feet, heavy snow possible. 
  Total snow accumulations of 7 to 14 inches possible.

* WHERE...Northern Trinity County.

* WHEN...For the Winter Weather Advisory, from 10 AM to 10 PM 
  PST Tuesday. For the Winter Storm Watch, from Wednesday 
  morning through Thursday morning.

* IMPACTS...Travel could be difficult over mountain passes along 
  Highways 299, 36, and especially 3. Plan on slippery and 
  potentially snow- covered roads. Chains may be required over 
  some mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$

CAZ108-201845-
/O.CON.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
Southern Trinity-
233 AM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
PST TUESDAY ABOVE 2500 FEET...

* WHAT...Wet snow expected above 2500 feet. Total snow 
  accumulations of 2 to 5 inches.

* WHERE...Southern Trinity County.

* WHEN...From 10 AM to 10 PM PST Tuesday.

* IMPACTS...Travel could be difficult over mountain passes along 
  Highways 3 and 36. Plan on slippery and potentially snow- 
  covered roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$
552 
WWUS46 KEKA 201855
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1055 AM PST Mon Dec 20 2021

...Quick-hitting Period of Wet Snow will bring Tricky Travel 
Conditions to some Trinity County Mountain Passes on Tuesday...

...Heavy Snowfall Expected Above 3500 feet in Trinity County Late
Wednesday and Thursday...

.The first in several rounds of precipitation expected to impact
northwest California through the holiday weekend will arrive in
Trinity County Tuesday. Snow levels will start around 2500 feet
and rise to around 3500 feet Tuesday night. Most snow
accumulations are now expected to be limited to elevations above 
3000 feet, though some light snow may fall down to 2500 feet
initially as the precipitation finally arrives Tuesday afternoon.
Precipitation will taper off later Tuesday night. Snow levels are
expected to be mainly above 4000 feet with the next round of 
precipitation late Wednesday into Thursday, before much colder air
begins flowing in late Thursday through the weekend.

CAZ107-210300-
/O.CON.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
/O.CON.KEKA.WS.A.0008.211222T1800Z-211223T1800Z/
Northern Trinity-
1055 AM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
PST TUESDAY ABOVE 3000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH THURSDAY MORNING ABOVE 3500 FEET...

* WHAT...For the Winter Weather Advisory above 3000 feet, wet snow
  expected. Total snow accumulations of 2 to 5 inches. For the 
  Winter Storm Watch above 3500 feet, heavy snow possible. Total 
  snow accumulations of 7 to 14 inches possible.

* WHERE...Northern Trinity County.

* WHEN...For the Winter Weather Advisory, from 10 AM to 10 PM 
  PST Tuesday. For the Winter Storm Watch, from Wednesday 
  morning through Thursday morning.

* IMPACTS...Travel could be difficult over mountain passes along
  Highways 299 and especially 3. Plan on slippery and potentially
  snow- covered roads. Chains may be required over some mountain 
  passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$

CAZ108-210300-
/O.CON.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
Southern Trinity-
1055 AM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
PST TUESDAY ABOVE 3000 FEET...

* WHAT...Wet snow expected above 3000 feet. Total snow
  accumulations of 2 to 5 inches.

* WHERE...Southern Trinity County.

* WHEN...From 10 AM to 10 PM PST Tuesday.

* IMPACTS...Travel could be difficult over mountain passes along 
  Highways 3 and 36. Plan on slippery and potentially snow- 
  covered roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$
874 
WWUS46 KEKA 202225
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
225 PM PST Mon Dec 20 2021

...Quick-hitting Period of Wet Snow will bring Tricky Travel
Conditions to some Trinity County Mountain Passes above 3000 feet  
on Tuesday...

...Heavy Snowfall Expected Above 4000 feet in Trinity County Late
Wednesday and Thursday...

.The first in several rounds of precipitation expected to impact
northwest California through the holiday weekend will arrive in
Trinity County Tuesday. Snow levels will start around 2500 feet
and rise to around 3500 feet Tuesday night. Most snow
accumulations are now expected to be limited to elevations above
3000 feet, though some light snow may fall down to 2500 feet
initially as the precipitation finally arrives Tuesday afternoon.
Precipitation will taper off later Tuesday night. Snow levels are
expected to be mainly above 4000 feet with the next round of
heavier precipitation Wednesday into Thursday, before much colder
air begins flowing in through the weekend.

CAZ107-210600-
/O.CON.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
/O.CON.KEKA.WS.A.0008.211222T1800Z-211223T1800Z/
Northern Trinity-
225 PM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
PST TUESDAY ABOVE 3000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING
THROUGH THURSDAY MORNING ABOVE 4000 FEET...

* WHAT...For the Winter Weather Advisory above 3000 feet, wet snow
  expected. Total snow accumulations of 2 to 5 inches. For the
  Winter Storm Watch above 4000 feet, heavy snow possible. Total
  snow accumulations of 7 to 12 inches possible.

* WHERE...Northern Trinity County. 

* WHEN...For the Winter Weather Advisory, from 10 AM to 10 PM 
  PST Tuesday. For the Winter Storm Watch, from Wednesday 
  morning through Thursday morning.

* IMPACTS...Travel could be difficult over some mountain passes 
  along Highways 3, 36 and 299. Plan on slippery and potentially 
  snow- covered roads, with possible chain restrictions over some 
  passes. On Wednesday and Wednesday Night, travel over Scott 
  Mountain Summit could be very difficult. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$

CAZ108-210600-
/O.CON.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
Southern Trinity-
225 PM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
PST TUESDAY ABOVE 3000 FEET...

* WHAT...Wet snow expected above 3000 feet. Total snow 
  accumulations of up to 2 to 5 inches.

* WHERE...Southern Trinity County.

* WHEN...From 10 AM to 10 PM PST Tuesday.

* IMPACTS...Travel could be difficult over mountain passes along
  Highways 3 and 36. Plan on slippery and potentially snow-
  covered roads, with possible chain restrictions over some
  passes. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$
426 
WWUS46 KEKA 210554
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
954 PM PST Mon Dec 20 2021

...Quick-hitting period of wet snow will bring slippery travel 
conditions to some Trinity County mountain passes above 3000 feet 
on Tuesday...

...Heavy snowfall expected above 4000 feet in Trinity County late
Wednesday and Thursday...

.The first in several rounds of precipitation expected to impact
northwest California through the holiday weekend will arrive in
Trinity County on Tuesday. Snow levels will start around 2500 feet
and rise to around 3500 feet Tuesday night. Most snow accumulations 
are now expected to be limited to elevations above 3000 feet, though 
some light snow may fall down to 2500 feet initially as the 
precipitation finally arrives Tuesday afternoon. Precipitation will 
taper off later Tuesday night. Snow levels are expected to be mainly 
above 4000 feet with the next round of heavier precipitation 
Wednesday into Thursday, before much colder air begins flowing in 
through the weekend.

CAZ107-211400-
/O.CON.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
/O.CON.KEKA.WS.A.0008.211222T1800Z-211223T1800Z/
Northern Trinity-
954 PM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
TUESDAY ABOVE 3000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY MORNING 
THROUGH THURSDAY MORNING ABOVE 4000 FEET...

* WHAT...For the Winter Weather Advisory above 3000 feet, wet 
  snow expected. Total snow accumulations of 2 to 5 inches. For 
  the Winter Storm Watch above 4000 feet, heavy snow possible. 
  Total snow accumulations of 7 to 12 inches possible.

* WHERE...Northern Trinity County.

* WHEN...For the Winter Weather Advisory, from 10 AM to 10 PM Tuesday.
  For the Winter Storm Watch, from Wednesday morning through 
  Thursday morning.

* IMPACTS...Travel could be difficult over some mountain passes along
  Highways 3, 36 and 299. Plan on slippery and potentially snow-
  covered roads, with possible chain restrictions over some passes. 
  On Wednesday and Wednesday Night, travel over Scott Mountain Summit
  could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. Monitor the latest 
forecasts for updates on this situation. The latest road conditions 
for the state of California can be obtained by calling 
1-800-GAS-ROAD.

$$

CAZ108-211400-
/O.CON.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
Southern Trinity-
954 PM PST Mon Dec 20 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM TO 10 PM
TUESDAY ABOVE 3000 FEET...

* WHAT...Wet snow expected above 3000 feet. Total snow accumulations
  of up to 2 to 5 inches.

* WHERE...Southern Trinity County.

* WHEN...From 10 AM to 10 PM Tuesday.

* IMPACTS...Travel could be difficult over mountain passes along
  Highways 3 and 36. Plan on slippery and potentially snow-covered 
  roads, with possible chain restrictions over some passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state of California can be obtained by calling 
1-800-GAS- ROAD.

$$
442 
WWUS46 KEKA 211045
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
245 AM PST Tue Dec 21 2021

...MULTIPLE ROUNDS OF MOUNTAIN SNOW EXPECTED DURING THE NEXT
WEEK...

.The first in several rounds of precipitation will spread across
Northwest California today. Snow levels will range from 2500 to
3000 feet across Trinity County this afternoon, and then rise
through the evening. Accumulating snowfall will occur as a result
leading to travel impacts mainly along highway 3 north of
Weaverville. Precipitation will diminish Tuesday night, and then
increase once again Wednesday afternoon and evening. Snow levels 
on Wednesday will generally be above 4000 feet. However, colder
air will spread across the region Friday into the weekend and aid
in lowering snow levels to 2000 feet across much of Northwest
California.

CAZ108-211145-
/O.CAN.KEKA.WW.Y.0023.211221T1800Z-211222T0600Z/
Southern Trinity-
245 AM PST Tue Dec 21 2021

...WINTER WEATHER ADVISORY IS CANCELLED...


$$

CAZ107-211845-
/O.EXT.KEKA.WW.Y.0023.211221T2100Z-211222T0600Z/
/O.EXT.KEKA.WS.A.0008.211222T2100Z-211223T1800Z/
Northern Trinity-
245 AM PST Tue Dec 21 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 1 PM THIS AFTERNOON
TO 10 PM PST THIS EVENING ABOVE 3000 FEET...
...WINTER STORM WATCH NOW IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH THURSDAY MORNING ABOVE 4000 FEET...

* WHAT...For the Winter Weather Advisory above 3000 feet, wet snow
  expected. Total snow accumulations of up to 4 inches. For the
  Winter Storm Watch above 4000 feet, heavy snow possible. Total
  snow accumulations of 5 to 12 inches possible.

* WHERE...Northern Trinity County.

* WHEN...For the Winter Weather Advisory, from 1 PM this 
  afternoon to 10 PM PST this evening. For the Winter Storm 
  Watch, from Wednesday afternoon through Thursday morning.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$
998 
WWUS46 KEKA 211448
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
648 AM PST Tue Dec 21 2021

...MULTIPLE ROUNDS OF MOUNTAIN SNOW EXPECTED DURING THE NEXT
WEEK...

.The first in several rounds of precipitation will spread across
Northwest California today. Snow levels will range from 2500 to
3000 feet across Trinity County this afternoon, and then rise
through the evening. Accumulating snowfall will occur as a result
leading to travel impacts mainly along highway 3 north of
Weaverville. Precipitation will diminish Tuesday night, and then
increase once again Wednesday afternoon and evening. Snow levels
on Wednesday will generally be above 4000 feet. However, colder
air will spread across the region Friday into the weekend and aid
in lowering snow levels to 2000 feet across much of Northwest
California.

CAZ107-212300-
/O.CON.KEKA.WW.Y.0023.211221T2100Z-211222T0600Z/
/O.CON.KEKA.WS.A.0008.211222T2100Z-211223T1800Z/
Northern Trinity-
648 AM PST Tue Dec 21 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 1 PM THIS
AFTERNOON TO 10 PM PST THIS EVENING ABOVE 3000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM WEDNESDAY AFTERNOON
THROUGH THURSDAY MORNING ABOVE 4000 FEET...

* WHAT...For the Winter Weather Advisory above 3000 feet, wet snow
  expected. Total snow accumulations of up to 4 inches. For the
  Winter Storm Watch above 4000 feet, heavy snow possible. Total
  snow accumulations of 5 to 12 inches possible.

* WHERE...Northern Trinity County.

* WHEN...For the Winter Weather Advisory, from 1 PM this 
  afternoon to 10 PM PST this evening. For the Winter Storm 
  Watch, from Wednesday afternoon through Thursday morning.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. 

Monitor the latest forecasts for updates on this situation. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$
106 
WWUS46 KEKA 212140
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
140 PM PST Tue Dec 21 2021

...MULTIPLE ROUNDS OF MOUNTAIN SNOW EXPECTED DURING THE NEXT
WEEK...

.The first of several rounds of precipitation will continue to 
cross Trinity County through this afternoon into this evening,
before tapering off tonight. Snow levels may start off near 2500
to 3000 feet in parts of northeast Trinity County, but are above
3000 feet along the Highway 299 corridor, and will tend to rise 
tonight. Most Trinity County passes will just have wet road
conditions, with travel impacts mainly limited to higher portions
of highway 3 north of Weaverville. The next round of precipitation
will arrive by late Wednesday afternoon and evening. Snow levels 
on Wednesday will generally be near or above 4000 feet. However, 
colder air will spread across the region Friday, with snow levels
around 2500 to 3000 feet. Even lower snow levels along with 
additional precipitation is expected for the weekend across much 
of Northwest California.


CAZ107-220600-
/O.UPG.KEKA.WS.A.0008.211222T2100Z-211223T1800Z/
/O.NEW.KEKA.WS.W.0009.211222T2100Z-211223T1800Z/
/O.CON.KEKA.WW.Y.0023.000000T0000Z-211222T0600Z/
Northern Trinity-
140 PM PST Tue Dec 21 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3000 FEET...
...WINTER STORM WARNING IN EFFECT FROM 1 PM WEDNESDAY TO 10 AM
PST THURSDAY ABOVE 4000 FEET...

* WHAT...For the Winter Storm Warning above 4000 feet, heavy snow
  expected. Total snow accumulations of 6 to 12 inches, with
  higher amounts in the Trinity Alps. For the Winter Weather
  Advisory above 3000 feet, expect periods of wet snow with additional
  snow accumulations of 1 to 4 inches.

* WHERE...Northern Trinity County. 

* WHEN...For the Winter Storm Warning, from 1 PM Wednesday to 10 
  AM PST Thursday. For the Winter Weather Advisory, until 10 PM 
  PST this evening.

* IMPACTS...Travel could be difficult over some mountain passes
  along Highways 3. Plan on slippery and potentially snow- covered
  roads, and carry chains. On Wednesday and Wednesday Night,
  travel over Scott Mountain Summit could be very difficult to
  impossible.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

Slow down and use caution while traveling. 

The latest road conditions for the state of California can be
obtained by calling 1-800-GAS-ROAD.

&&

$$

The office that day

Everything else NWS Eureka, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 20, 2:32 PM PSTHazardous Seas WarningEKA27 hr

Nearby

Winter Storm Watches in California, 2021Every winter storm watch 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.