Alert archive / California / Winter Storm Warnings in 2024

Winter Storm Warning 2, NWS Eureka, CA

January 8, 2024Humboldt County, Trinity County, California

NWS Eureka, CA issued this winter storm warning at Jan 8, 2024, 2:57 PM PST for Humboldt County, Trinity County, California. It took effect at Jan 9, 2024, 10:00 PM 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 8, 2024, 2:57 PM PST (22:57 UTC)
In effect from
Jan 9, 2024, 10:00 PM PST
Expired
Jan 10, 2024, 4:00 PM PST
In force
18 hr
Issued by
NWS Eureka, CA

Counties Humboldt County, CA, Trinity County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 69 km from the middle of the area, began a volume at 22:56 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 11.0 hours before the alert went out and 197 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Medford/Jackson, OR at 12:00Z on 2024-01-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2024-01-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 35 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
780 m above ground
0-6 km bulk shear
60 kt
0-1 km storm-relative helicity
35 m²/s²
0-3 km storm-relative helicity
351 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

085 
WWUS46 KEKA 082257
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
257 PM PST Mon Jan 8 2024

CAZ107-108-090700-
/O.UPG.KEKA.WS.A.0003.240110T0600Z-240111T0000Z/
/O.NEW.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Northern Trinity-Southern Trinity-
257 PM PST Mon Jan 8 2024

...WINTER STORM WARNING IN EFFECT FROM 10 PM TUESDAY TO 4 PM PST
WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected above 2500 feet. Total snow
  accumulations of up to 10 inches. Winds gusting as high as 50 
  mph.

* WHERE...Northern Trinity and Southern Trinity Counties.

* WHEN...From 10 PM Tuesday to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning commute. Gusty
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ106-090700-
/O.NEW.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Southern Humboldt Interior-
257 PM PST Mon Jan 8 2024

...WINTER STORM WARNING IN EFFECT FROM 10 PM TUESDAY TO 4 PM PST
WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy wet snow expected above 2500 feet. Total snow
  accumulations of up to 8 inches. Winds gusting as high as 40 
  mph.

* WHERE...Southern Humboldt Interior County.

* WHEN...From 10 PM Tuesday to 4 PM PST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ105-090700-
/O.EXB.KEKA.WW.Y.0003.240110T0600Z-240111T0000Z/
Northern Humboldt Interior-
257 PM PST Mon Jan 8 2024

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 PM TUESDAY TO 4 PM
PST WEDNESDAY...

* WHAT...Wet snow expected. Total snow accumulations of 2 to 4
  inches at Berry Summit and higher at higher elevations. Winds 
  gusting as high as 40 mph.

* WHERE...Northern Humboldt Interior County.

* WHEN...From 10 PM Tuesday to 4 PM PST Wednesday.

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

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.

&&

$$

CAZ102-090700-
/O.CON.KEKA.WW.Y.0003.240109T1400Z-240111T0000Z/
Del Norte Interior-
257 PM PST Mon Jan 8 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM TUESDAY TO
4 PM PST WEDNESDAY ABOVE 2000 FEET...

* WHAT...Snow expected above 2000 feet. Total snow accumulations
  of up to 4 inches. Winds gusting as high as 55 mph.

* WHERE...Del Norte Interior County.

* WHEN...From 6 AM Tuesday to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning or evening
  commute. Gusty winds could bring down tree branches.

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
217 
WWUS46 KEKA 090636
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1036 PM PST Mon Jan 8 2024

CAZ106>108-091445-
/O.CON.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
1036 PM PST Mon Jan 8 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM TUESDAY TO
4 PM PST WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected above 2500 feet. Total snow
  accumulations of 5 to 10 inches. Winds gusting as high as 45 
  mph.

* WHERE...Southern Humboldt Interior, Northern Trinity and 
  Southern Trinity Counties.

* WHEN...From 10 PM Tuesday to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning commute. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ105-091445-
/O.CON.KEKA.WW.Y.0003.240110T0600Z-240111T0000Z/
Northern Humboldt Interior-
1036 PM PST Mon Jan 8 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM TUESDAY
TO 4 PM PST WEDNESDAY...

* WHAT...Wet snow expected. Total snow accumulations of 2 to 4
  inches at Berry Summit and higher at higher elevations. Winds 
  gusting as high as 40 mph.


* WHERE...Northern Humboldt Interior County.

* WHEN...From 10 PM Tuesday to 4 PM PST Wednesday.

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

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.

&&

$$

CAZ102-091445-
/O.CON.KEKA.WW.Y.0003.240109T1400Z-240111T0000Z/
Del Norte Interior-
1036 PM PST Mon Jan 8 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 AM TUESDAY TO
4 PM PST WEDNESDAY ABOVE 2000 FEET...

* WHAT...Snow expected above 2000 feet. Total snow accumulations
  of up to 4 inches at Collier Tunnel and high parts of highway
  299. Winds gusting as high as 55 mph.

* WHERE...Del Norte Interior County.

* WHEN...From 6 AM Tuesday to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Gusty winds could bring down tree branches.

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.

&&

$$
239 
WWUS46 KEKA 091225
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
425 AM PST Tue Jan 9 2024

CAZ106-092030-
/O.CON.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Southern Humboldt Interior-
425 AM PST Tue Jan 9 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 4 PM PST WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy wet snow expected above 2500 feet. Total snow
  accumulations of 5 to 10 inches. Winds gusting as high as 45 
  mph.

* WHERE...Southern Humboldt Interior County including higher
  elevations of Hwy 36 near Dinsmore.

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ107-108-092030-
/O.CON.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Northern Trinity-Southern Trinity-
425 AM PST Tue Jan 9 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 4 PM PST WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected above 2500 feet. Total snow
  accumulations of 5 to 10 inches. Higher amounts above 4000 feet.  
  Winds gusting as high as 45 mph.

* WHERE...Trinity County including the higher summits on Hwy 3,
  299 and 36. 

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning commute. Gusty 
  winds could bring down tree branches.

* Additional Details...Most of the snow will fall above 2,500 
  feet but up to 3 inches may fall as low as 1500 feet. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ102-092030-
/O.EXT.KEKA.WW.Y.0003.240110T0100Z-240111T0000Z/
Del Norte Interior-
425 AM PST Tue Jan 9 2024

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 5 PM THIS AFTERNOON
TO 4 PM PST WEDNESDAY ABOVE 2000 FEET...

* WHAT...Snow expected above 2000 feet. Total snow accumulations
  of 4 to 6 inches at the Collier Tunnel with local amounts to 10
  inches at higher elevations. Winds gusting as high as 50 mph.

* WHERE...Del Norte Interior County including hwy 199 at the 
  Collier Tunnel

* WHEN...From 5 PM this afternoon to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause tree damage.

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.

&&

$$

CAZ105-092030-
/O.CON.KEKA.WW.Y.0003.240110T0600Z-240111T0000Z/
Northern Humboldt Interior-
425 AM PST Tue Jan 9 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 4 PM PST WEDNESDAY ABOVE 2500 FEET...

* WHAT...Wet snow expected above 2500 feet. Total snow
  accumulations of 3 to 6 inches at Berry Summit on Hwy 299. 
  Winds gusting as high as 40 mph.

* WHERE...Northern Humboldt Interior County including Berry Summit
  on Hwy 299.

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning commute. Gusty 
  winds could bring down tree branches.

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.

&&

$$
597 
WWUS46 KEKA 092041
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1241 PM PST Tue Jan 9 2024

CAZ106-100445-
/O.CON.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Southern Humboldt Interior-
1241 PM PST Tue Jan 9 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 4 PM PST WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy wet snow expected above 2500 feet. Total snow 
  accumulations of 5 to 10 inches. Winds gusting as high as 45 
  mph.

* WHERE...Southern Humboldt Interior County including higher 
  elevations of Hwy 36 near Dinsmore.

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ107-108-100445-
/O.CON.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Northern Trinity-Southern Trinity-
1241 PM PST Tue Jan 9 2024

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 4 PM PST WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected above 2500 feet. Total snow 
  accumulations of 5 to 10 inches. Higher amounts above 4000 
  feet. Winds gusting as high as 45 mph.

* WHERE...Trinity County including the higher summits on Hwy 3, 
  299 and 36.

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning commute. Gusty
  winds could bring down tree branches.

* ADDITIONAL DETAILS...Most of the snow will fall above 2,500 
  feet but up to 3 inches may fall as low as 1500 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ102-100445-
/O.CON.KEKA.WW.Y.0003.240110T0100Z-240111T0000Z/
Del Norte Interior-
1241 PM PST Tue Jan 9 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 5 PM THIS
AFTERNOON TO 4 PM PST WEDNESDAY ABOVE 2000 FEET...

* WHAT...Snow expected above 2000 feet. Total snow accumulations 
  of 4 to 6 inches at the Collier Tunnel with local amounts to 
  10 inches at higher elevations. Winds gusting as high as 50 
  mph.

* WHERE...Del Norte Interior County including hwy 199 at the 
  Collier Tunnel.

* WHEN...From 5 PM this afternoon to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning or evening
  commute. Strong winds could cause tree damage.

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.

&&

$$

CAZ105-100445-
/O.CON.KEKA.WW.Y.0003.240110T0600Z-240111T0000Z/
Northern Humboldt Interior-
1241 PM PST Tue Jan 9 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 4 PM PST WEDNESDAY ABOVE 2500 FEET...

* WHAT...Wet snow expected above 2500 feet. Total snow 
  accumulations of 3 to 6 inches at Berry Summit on Hwy 299. 
  Winds gusting as high as 40 mph.

* WHERE...Northern Humboldt Interior County including Berry 
  Summit on Hwy 299.

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning commute. Gusty
  winds could bring down tree branches.

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.

&&

$$
884 
WWUS46 KEKA 100457
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
857 PM PST Tue Jan 9 2024

CAZ106-101300-
/O.CON.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Southern Humboldt Interior-
857 PM PST Tue Jan 9 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST
WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy wet snow expected above 2500 feet. Total snow 
  accumulations of 5 to 10 inches. Winds gusting as high as 45 
  mph.

* WHERE...Southern Humboldt Interior County including higher 
  elevations of Hwy 36 near Dinsmore.

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ107-108-101300-
/O.CON.KEKA.WS.W.0002.240110T0600Z-240111T0000Z/
Northern Trinity-Southern Trinity-
857 PM PST Tue Jan 9 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST
WEDNESDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected above 2500 feet. Total snow 
  accumulations of 5 to 10 inches. Higher amounts above 4000 
  feet. Winds gusting as high as 45 mph.

* WHERE...Trinity County including the higher summits on Hwy 3, 
  299 and 36.

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning commute. Gusty 
  winds could bring down tree branches.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ102-101300-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-240111T0000Z/
Del Norte Interior-
857 PM PST Tue Jan 9 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
WEDNESDAY ABOVE 2000 FEET...

* WHAT...Snow expected above 2000 feet. Total snow accumulations 
  of 4 to 6 inches at the Collier Tunnel with local amounts to 
  10 inches at higher elevations. Winds gusting as high as 50 
  mph.

* WHERE...Del Norte Interior County including hwy 199 at the 
  Collier Tunnel.

* WHEN...From 5 PM this afternoon to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning or evening 
  commute. Strong winds could cause tree damage.

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.

&&

$$

CAZ105-101300-
/O.CON.KEKA.WW.Y.0003.240110T0600Z-240111T0000Z/
Northern Humboldt Interior-
857 PM PST Tue Jan 9 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST
WEDNESDAY ABOVE 2500 FEET...

* WHAT...Wet snow expected above 2500 feet. Total snow 
  accumulations of 3 to 6 inches at Berry Summit on Hwy 299. 
  Winds gusting as high as 40 mph.

* WHERE...Northern Humboldt Interior County including Berry 
  Summit on Hwy 299.

* WHEN...From 10 PM this evening to 4 PM PST Wednesday.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning commute. Gusty 
  winds could bring down tree branches.

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.

&&

$$
909 
WWUS46 KEKA 101218
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
418 AM PST Wed Jan 10 2024

CAZ107-108-102030-
/O.CON.KEKA.WS.W.0002.000000T0000Z-240111T0000Z/
Northern Trinity-Southern Trinity-
418 AM PST Wed Jan 10 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 2500 FEET...

* WHAT...Heavy snow above 2500 feet. Additional snow accumulations
  of up to 4 to 8 inches. Winds gusting as high as 45 mph.

* WHERE...Trinity County including the higher summits on Hwy 3, 
  299 and 36.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning commute. Gusty 
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ106-102030-
/O.CON.KEKA.WS.W.0002.000000T0000Z-240111T0000Z/
Southern Humboldt Interior-
418 AM PST Wed Jan 10 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 3000 FEET...

* WHAT...Heavy wet snow above 3000 feet. Additional snow 
  accumulations of up to 10 inches. Winds gusting as high as 45 
  mph.

* WHERE...Southern Humboldt Interior County. Snow levels may be
  lower in far southeastern Humboldt county.

* WHEN...Until 4 PM PST this afternoon.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ102-102030-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-240111T0000Z/
Del Norte Interior-
418 AM PST Wed Jan 10 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 2000 FEET...

* WHAT...Snow above 2000 feet. Additional snow accumulations of up
  to 6 inches. Winds gusting as high as 45 mph.

* WHERE...Del Norte Interior County.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Travel could be very difficult. The hazardous 
  conditions could impact the morning commute.

* Additional Details...Snow levels are around 3,000 feet this
  morning and are expected to fall through the day to around 1500
  feet.

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.

&&

$$

CAZ105-102030-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-240111T0000Z/
Northern Humboldt Interior-
418 AM PST Wed Jan 10 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 2500 FEET...

* WHAT...Wet snow above 2500 feet. Snow accumulations of 1 to 3
  inches at Berry Summit on Hwy 299 this afternoon. Additional
  snow accumulations of up to 8 inches. Winds gusting as high as 
  45 mph.

* WHERE...Northern Humboldt Interior County.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Travel could be very difficult to impossible. The 
  hazardous conditions could impact the morning commute. Gusty 
  winds could bring down tree branches.

* Additional Details...Snow levels are mainly around 3,000 feet
  this morning, but local areas near the Hwy 96 corridor and near
  Trinity county may be lower. Snow levels are expected to fall
  through the day to around 2000 feet.

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.

&&

$$
613 
WWUS46 KEKA 102020
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1220 PM PST Wed Jan 10 2024

CAZ106-102130-
/O.CAN.KEKA.WS.W.0002.000000T0000Z-240111T0000Z/
Southern Humboldt Interior-
1220 PM PST Wed Jan 10 2024

...WINTER STORM WARNING IS CANCELLED...

Additional snowfall of one to two inches is possible this evening
with convective showers.

$$

CAZ107-108-110000-
/O.CON.KEKA.WS.W.0002.000000T0000Z-240111T0000Z/
Northern Trinity-Southern Trinity-
1220 PM PST Wed Jan 10 2024

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 3000 FEET...

* WHAT...Heavy snow above 3000 feet. Additional snow accumulations
  of up to four inches. Winds gusting as high as 45 mph.

* WHERE...Trinity County including the higher summits on Hwy 3, 
  299 and 36.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning commute. Gusty
  winds could bring down tree branches.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

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

&&

$$

CAZ102-110000-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-240111T0000Z/
Del Norte Interior-
1220 PM PST Wed Jan 10 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 2000 FEET...

* WHAT...Snow above 2000 feet. Additional snow accumulations of up
  to two inches.

* WHERE...Del Norte Interior County.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Travel could be very difficult. The hazardous
  conditions could impact the morning commute.

* ADDITIONAL DETAILS...Snow levels are around 3,000 feet this 
  morning and are expected to fall through the day to around 
  1500 feet.

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.

&&

$$

CAZ105-110000-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-240111T0000Z/
Northern Humboldt Interior-
1220 PM PST Wed Jan 10 2024

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 2500 FEET...

* WHAT...Wet snow above 2500 feet. Additional snow accumulations 
  of up to two inches.

* WHERE...Northern Humboldt Interior County.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Travel could be very difficult to impossible. The
  hazardous conditions could impact the morning commute. Gusty
  winds could bring down tree branches.

* ADDITIONAL DETAILS...Snow levels are mainly around 3,000 feet 
  this morning, but local areas near the Hwy 96 corridor and 
  near Trinity county may be lower. Snow levels are expected to 
  fall through the day to around 2000 feet this evening.

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.

&&

$$
408 
WWUS46 KEKA 110004
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
404 PM PST Wed Jan 10 2024

CAZ107-108-110115-
/O.EXP.KEKA.WS.W.0002.000000T0000Z-240111T0000Z/
Northern Trinity-Southern Trinity-
404 PM PST Wed Jan 10 2024

...WINTER STORM WARNING HAS EXPIRED...

An inch of snow possible this evening. 

$$

CAZ102-105-110115-
/O.EXP.KEKA.WW.Y.0003.000000T0000Z-240111T0000Z/
Del Norte Interior-Northern Humboldt Interior-
404 PM PST Wed Jan 10 2024

...WINTER WEATHER ADVISORY HAS EXPIRED...

An inch of snow possible this evening. 


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 8, 2:35 AM PSTSmall Craft AdvisoryEKA65 hr
Jan 8, 2:35 AM PSTHazardous Seas WatchEKA18 hr
Jan 8, 3:27 AM PSTWinter Storm WatchEKATrinity12 hr
Jan 8, 3:27 AM PSTWinter Weather AdvisoryEKADel Norte, Humboldt61 hr

Nearby

Winter Storm Warnings in California, 2024Every winter storm warning in 2024

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.