Alert archive / California / Winter Storm Warnings in 2021

Winter Storm Warning 1, NWS Eureka, CA

January 3, 2021

NWS Eureka, CA issued this winter storm warning at Jan 3, 2021, 3:50 AM PST. It took effect at Jan 4, 2021, 4:00 AM PST. It was in force for 18 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
Jan 3, 2021, 3:50 AM PST (11:50 UTC)
In effect from
Jan 4, 2021, 4:00 AM PST
Expired
Jan 4, 2021, 10:00 PM PST
In force
18 hr
Issued by
NWS Eureka, CA

The text

As transmitted.

632 
WWUS46 KEKA 031150
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
350 AM PST Sun Jan 3 2021

...HEAVY MOUNTAIN SNOW EXPECTED MONDAY...

.Precipitation will spread across Trinity County Monday morning
through the evening. As that occurs, snow levels will steadily
fall during the day. Heavy snow will be likely across the Trinity
Alps in northern Trinity County as a result.

CAZ107-032300-
/O.UPG.KEKA.WS.A.0001.210104T1200Z-210105T0600Z/
/O.NEW.KEKA.WS.W.0001.210104T1200Z-210105T0600Z/
Northern Trinity-
350 AM PST Sun Jan 3 2021

...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 10 PM MONDAY ABOVE
4000 FEET...

* WHAT...Snow accumulations in excess of one foot expected above 
  4000 feet.

* WHERE...Northern Trinity County.

* WHEN...From 4 AM to 10 PM Monday.

* IMPACTS...The hazardous conditions will impact travel through
  Scott Mountain Pass on Highway 3 and adjacent mountain roadways.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Prepare for possible power
outages. 

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

$$
4 follow-up statements
337 
WWUS46 KEKA 032207
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
207 PM PST Sun Jan 3 2021

...HEAVY MOUNTAIN SNOW EXPECTED MONDAY...

.Precipitation will spread across Trinity County Monday morning
through the evening. As that occurs, snow levels will steadily
fall during the day. Heavy snow will be likely across the Trinity
Alps in northern Trinity County as a result.

CAZ107-040615-
/O.CON.KEKA.WS.W.0001.210104T1200Z-210105T0600Z/
Northern Trinity-
207 PM PST Sun Jan 3 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
MONDAY ABOVE 4000 FEET...

* WHAT...Snowfall totals at or above one foot expected above 4000
  feet.

* WHERE...Northern Trinity County.

* WHEN...From 4 AM to 10 PM PST Monday.

* IMPACTS...Travel will be hazardous across Scott Mountain Pass on
  Highway 3 and surrounding roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Prepare for possible power
outages. 

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

&&

$$
501 
WWUS46 KEKA 040620
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1020 PM PST Sun Jan 3 2021

...HEAVY MOUNTAIN SNOW EXPECTED MONDAY...

.Precipitation will spread across Trinity County Monday morning
through the evening. As that occurs, snow levels will steadily
fall during the day. Heavy snow will be likely across the Trinity
Alps in northern Trinity County as a result.

CAZ107-041430-
/O.CON.KEKA.WS.W.0001.210104T1200Z-210105T0600Z/
Northern Trinity-
1020 PM PST Sun Jan 3 2021

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
MONDAY ABOVE 4000 FEET...

* WHAT...Snowfall totals at or above one foot expected above 4000
  feet.

* WHERE...Northern Trinity County.

* WHEN...From 4 AM to 10 PM PST Monday.

* IMPACTS...Travel will be hazardous across Scott Mountain Pass on
  Highway 3 and surrounding roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Prepare for possible power
outages. 

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

&&

$$
298 
WWUS46 KEKA 041417
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
617 AM PST Mon Jan 4 2021

...HEAVY MOUNTAIN SNOW TODAY...

.Precipitation will continue to spread across Trinity County through
this evening. As that occurs, snow levels will steadily fall through
the day. Heavy snow will be likely across the Trinity Alps in 
northern Trinity County as a result.

CAZ107-050600-
/O.CON.KEKA.WS.W.0001.000000T0000Z-210105T0600Z/
Northern Trinity-
617 AM PST Mon Jan 4 2021

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM THIS EVENING 
ABOVE 4000 FEET...

* WHAT...Snowfall totals at or above one foot expected above 
  4000 feet.

* WHERE...Northern Trinity County.

* WHEN...Through 10 PM this evening.

* IMPACTS...Travel will be hazardous across Scott Mountain Pass on
  Highway 3 and surrounding roads.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If you must travel, keep an extra flashlight, food, and water in
your vehicle in case of an emergency. Prepare for possible power
outages.

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

$$
394 
WWUS46 KEKA 050549
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
949 PM PST Mon Jan 4 2021

CAZ107-050700-
/O.EXP.KEKA.WS.W.0001.000000T0000Z-210105T0600Z/
Northern Trinity-
949 PM PST Mon Jan 4 2021

...WINTER STORM WARNING WILL EXPIRE AT 10 PM PST THIS EVENING
ABOVE 4000 FEET...

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 3, 2:58 AM PSTGale WarningEKA30 hr
Jan 3, 2:58 AM PSTStorm WarningEKA30 hr
Jan 3, 3:46 AM PSTHigh Wind WarningEKADel Norte29 hr
Jan 3, 3:46 AM PSTWind AdvisoryEKADel Norte, Humboldt, Lake, Mendocino, Trinity33 hr
Jan 3, 2:03 PM PSTHigh Surf AdvisoryEKADel Norte, Humboldt, Mendocino51 hr

Nearby

Winter Storm Warnings in California, 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.