Alert archive / California / Winter Storm Warnings in 2025

Winter Storm Warning 3, NWS Eureka, CA

February 4, 2025Del Norte County, California

NWS Eureka, CA issued this winter storm warning at Feb 4, 2025, 10:12 PM PST for Del Norte County, California. It took effect at Feb 5, 2025, 6:00 AM PST. It was in force for 14 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
Feb 4, 2025, 10:12 PM PST (06:12 UTC)
In effect from
Feb 5, 2025, 6:00 AM PST
Expired
Feb 5, 2025, 8:21 PM PST
In force
14 hr
Issued by
NWS Eureka, CA

County Del Norte County, CA

The radar

The Medford radar (KMAX), 109 km from the middle of the area, began a volume at 06:15 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 00:00Z, 6.2 hours before the alert went out and 118 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 00:00Z on 2025-02-05Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 00:00Z on 2025-02-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -36 square meters per square second.1939587897117Sfc1 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
475 m above ground
0-6 km bulk shear
73 kt
0-1 km storm-relative helicity
-36 m²/s²
0-3 km storm-relative helicity
-33 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

246 
WWUS46 KEKA 050612
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1012 PM PST Tue Feb 4 2025

CAZ102-051415-
/O.UPG.KEKA.WW.Y.0003.250205T1200Z-250206T0300Z/
/O.NEW.KEKA.WS.W.0003.250205T1400Z-250206T0600Z/
Del Norte Interior-
Including Gasquet and Hwy 199-Collier Tunnel
1012 PM PST Tue Feb 4 2025

...WINTER STORM WARNING IN EFFECT FROM 6 AM TO 10 PM PST WEDNESDAY 
ABOVE 1500 FEET...

* WHAT...Heavy snow expected ABOVE 1500 FEET. Total snow 
  accumulations up to 13 inches. Winds gusting as high as 35 mph.

* WHERE...Del Norte Interior.

* WHEN...From 6 AM to 10 PM PST Wednesday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Visibilities may drop below 1/4 
  mile due to falling and blowing snow. The strong winds and weight 
  of snow on tree limbs may down power lines and could cause 
  sporadic power outages. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Persons should consider delaying all travel. Motorists should use 
extreme caution if travel is absolutely necessary.

Persons should consider delaying all travel. If travel is absolutely 
necessary, drive with extreme caution. Consider taking a winter 
storm kit along with you, including such items as tire chains, 
booster cables, flashlight, shovel, blankets and extra clothing. 
Also take water, a first aid kit, and anything else that would help 
you survive in case you become stranded.

&&

$$

CAZ101-051415-
/O.EXT.KEKA.WW.Y.0003.250205T1400Z-250206T0200Z/
Coastal Del Norte-
Including Klamath, Crescent City, and Smith River
1012 PM PST Tue Feb 4 2025

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 6 AM TO 6 PM PST 
WEDNESDAY...

* WHAT...Small hail accumulation will make roads icy and hazardous.

* WHERE...Del Norte Coast.

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

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ105-106-051415-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Humboldt Interior-Southern Humboldt Interior-
Including Bald Hills Rd, Hwy 299-Berry Summit, Orleans, Dinsmore,
and Hwy 101-Prairie Creek Summit
1012 PM PST Tue Feb 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST 
WEDNESDAY ABOVE 1500 FEET...

* WHAT...Snow ABOVE 1500 FEET. Additional snow accumulations between 
  3 and 5 inches.

* WHERE...Humboldt Interior.

* WHEN...Until 7 PM PST Wednesday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ107-108-051415-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Trinity-Southern Trinity-
Including Ruth
1012 PM PST Tue Feb 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST 
WEDNESDAY ABOVE 1500 FEET...

* WHAT...Snow ABOVE 1500 FEET. Additional snow accumulations between 
  4 and 6 inches.

* WHERE...Trinity County.

* WHEN...Until 7 PM PST Wednesday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ104-051415-
/O.CON.KEKA.WW.Y.0003.250205T1200Z-250205T1800Z/
Southwestern Humboldt-
1012 PM PST Tue Feb 4 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 10 AM PST 
WEDNESDAY ABOVE 1500 FEET...

* WHAT...Wet snow expected ABOVE 1500 FEET. Total snow accumulations 
  up to two inches.

* WHERE...Southwestern Humboldt.

* WHEN...From 4 AM to 10 AM PST Wednesday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Plan on slippery road 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

DB
5 follow-up statements
489 
WWUS46 KEKA 051327
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
527 AM PST Wed Feb 5 2025

CAZ102-052130-
/O.CON.KEKA.WS.W.0003.250205T1400Z-250206T0600Z/
Del Norte Interior-
Including Hwy 199-Collier Tunnel and Gasquet
527 AM PST Wed Feb 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...Heavy snow expected ABOVE 1500 FEET. Total snow 
  accumulations up to 9 inches. Winds gusting as high as 35 mph.

* WHERE...Del Norte Interior.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Visibilities may drop below 1/4 
  mile due to falling and blowing snow. The strong winds and weight 
  of snow on tree limbs may down power lines and could cause 
  sporadic power outages. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Persons should consider delaying all travel. Motorists should use 
extreme caution if travel is absolutely necessary.

Persons should consider delaying all travel. If travel is absolutely 
necessary, drive with extreme caution. Consider taking a winter 
storm kit along with you, including such items as tire chains, 
booster cables, flashlight, shovel, blankets and extra clothing. 
Also take water, a first aid kit, and anything else that would help 
you survive in case you become stranded.

&&

$$

CAZ104-051800-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250205T1800Z/
Southwestern Humboldt-
527 AM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS 
MORNING ABOVE 1500 FEET...

* WHAT...Wet snow ABOVE 1500 FEET. Additional snow accumulations up 
  to one inch.

* WHERE...Southwestern Humboldt.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Plan on slippery road 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ105-106-052130-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Humboldt Interior-Southern Humboldt Interior-
Including Hwy 101-Prairie Creek Summit, Dinsmore, Orleans, Hwy
299-Berry Summit, and Bald Hills Rd
527 AM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...Snow ABOVE 1500 FEET. Additional snow accumulations up to 4 
  inches.

* WHERE...Humboldt Interior.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult. 
  Tire chains may be necessary if travelling through mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ107-108-052130-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Trinity-Southern Trinity-
Including Ruth
527 AM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...Snow ABOVE 1500 FEET. Additional snow accumulations between 
  2 and 4 inches.

* WHERE...Trinity County.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult. 
  Tire chains may be necessary if travelling through mountain passes.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ101-052130-
/O.CON.KEKA.WW.Y.0003.250205T1400Z-250206T0200Z/
Coastal Del Norte-
Including Smith River, Klamath, and Crescent City
527 AM PST Wed Feb 5 2025

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

* WHAT...Small hail accumulation will make roads icy and hazardous.

* WHERE...Del Norte Coast.

* WHEN...Until 6 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

EYS
998 
WWUS46 KEKA 051817
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1017 AM PST Wed Feb 5 2025

CAZ104-051930-
/O.EXP.KEKA.WW.Y.0003.000000T0000Z-250205T1800Z/
Southwestern Humboldt-
1017 AM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY HAS EXPIRED...

The threat has ended.

$$

CAZ102-060230-
/O.CON.KEKA.WS.W.0003.000000T0000Z-250206T0600Z/
Del Norte Interior-
Including Gasquet and Hwy 199-Collier Tunnel
1017 AM PST Wed Feb 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...Heavy snow ABOVE 1500 FEET. Additional snow accumulations 
  up to 6 inches. Winds gusting as high as 35 mph.

* WHERE...Del Norte Interior.

* WHEN...Until 10 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Visibilities may drop below 1/4 
  mile due to falling and blowing snow. The strong winds and weight 
  of snow on tree limbs may down power lines and could cause 
  sporadic power outages. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Persons should consider delaying all travel. Motorists should use 
extreme caution if travel is absolutely necessary.

Persons should consider delaying all travel. If travel is absolutely 
necessary, drive with extreme caution. Consider taking a winter 
storm kit along with you, including such items as tire chains, 
booster cables, flashlight, shovel, blankets and extra clothing. 
Also take water, a first aid kit, and anything else that would help 
you survive in case you become stranded.

&&

$$

CAZ101-060200-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0200Z/
Coastal Del Norte-
Including Crescent City, Smith River, and Klamath
1017 AM PST Wed Feb 5 2025

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

* WHAT...Small hail accumulation will make roads icy and hazardous.

* WHERE...Del Norte Coast.

* WHEN...Until 6 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ105-106-060230-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Humboldt Interior-Southern Humboldt Interior-
Including Hwy 299-Berry Summit, Bald Hills Rd, Hwy 101-Prairie
Creek Summit, Orleans, and Dinsmore
1017 AM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...Snow ABOVE 1500 FEET. Additional snow accumulations up to 3 
  inches.

* WHERE...Humboldt Interior.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Plan on slippery road 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ107-108-060230-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Trinity-Southern Trinity-
Including Ruth
1017 AM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...Snow ABOVE 1500 FEET. Additional snow accumulations between 
  1 and 3 inches.

* WHERE...Trinity County.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Plan on slippery road 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

JLW
270 
WWUS46 KEKA 052250
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
250 PM PST Wed Feb 5 2025

CAZ107-060700-
/O.NEW.KEKA.WS.W.0004.250206T1800Z-250207T1800Z/
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Trinity-
Including Hwy 3-Scott Mountain
250 PM PST Wed Feb 5 2025

...WINTER STORM WARNING IN EFFECT FROM 10 AM THURSDAY TO 10 AM PST 
FRIDAY ABOVE 2500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...For the Winter Weather Advisory ABOVE 1500 FEET, snow. 
  Additional snow accumulations up to one inch. For the Winter Storm 
  Warning ABOVE 2500, heavy snow expected. Total snow accumulations 
  between 8 and 13 inches.

* WHERE...Northern Trinity.

* WHEN...For the Winter Weather Advisory, until 7 PM PST this 
  evening. For the Winter Storm Warning, from 10 AM Thursday to 10 
  AM PST Friday.

* IMPACTS...Travel could be very difficult. Roads, and especially 
  bridges and overpasses, will likely become slick and hazardous.

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 you are calling from can be obtained by calling 5 1 1.

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ102-060700-
/O.NEW.KEKA.WW.Y.0004.250207T0000Z-250207T1800Z/
/O.CON.KEKA.WS.W.0003.000000T0000Z-250206T0600Z/
Del Norte Interior-
Including Gasquet and Hwy 199-Collier Tunnel
250 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THURSDAY TO 10 AM PST 
FRIDAY ABOVE 2500 FEET...
...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...For the Winter Storm Warning ABOVE 1500 FEET, heavy snow. 
  Additional snow accumulations up to 3 inches. For the Winter 
  Weather Advisory ABOVE 2500 FEET, snow expected. Total snow 
  accumulations up to 6 inches.

* WHERE...Del Norte Interior.

* WHEN...For the Winter Storm Warning, until 10 PM PST this evening. 
  For the Winter Weather Advisory, from 4 PM Thursday to 10 AM PST 
  Friday.

* IMPACTS...Travel could be very difficult. Roads, and especially 
  bridges and overpasses, will likely become slick and hazardous. 
  Visibilities may drop below 1/4 mile due to falling and blowing 
  snow. The strong winds and weight of snow on tree limbs may down 
  power lines and could cause sporadic power outages.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Persons should consider delaying all travel. Motorists should use 
extreme caution if travel is absolutely necessary.

Persons should consider delaying all travel. If travel is absolutely 
necessary, drive with extreme caution. Consider taking a winter 
storm kit along with you, including such items as tire chains, 
booster cables, flashlight, shovel, blankets and extra clothing. 
Also take water, a first aid kit, and anything else that would help 
you survive in case you become stranded.

&&

$$

CAZ105-060700-
/O.NEW.KEKA.WW.Y.0004.250207T0000Z-250207T1800Z/
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Humboldt Interior-
Including Hwy 101-Prairie Creek Summit, Orleans, Hwy 299-Berry
Summit, and Bald Hills Rd
250 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 PM THURSDAY TO 10 AM PST 
FRIDAY ABOVE 2500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...For the first Winter Weather Advisory ABOVE 1500 FEET, 
  snow. Additional snow accumulations up to one inch. For the second 
  Winter Weather Advisory ABOVE 2500 FEET, snow expected. Total snow 
  accumulations between 2 and 8 inches.

* WHERE...Northern Humboldt Interior.

* WHEN...For the first Winter Weather Advisory ABOVE 1500 FEET, 
  until 7 PM PST this evening. For the second Winter Weather 
  Advisory ABOVE 2500 FEET, from 4 PM Thursday to 10 AM PST Friday.

* IMPACTS...Travel could be very difficult. Roads, and especially 
  bridges and overpasses, will likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ108-060700-
/O.NEW.KEKA.WW.Y.0004.250206T1800Z-250207T1800Z/
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Southern Trinity-
Including Ruth
250 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY IN EFFECT FROM 10 AM THURSDAY TO 10 AM 
PST FRIDAY ABOVE 2500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...For the first Winter Weather Advisory ABOVE 1500 FEET, 
  snow. Additional snow accumulations up to one inch. For the second 
  Winter Weather Advisory ABOVE 2500, snow expected. Total snow 
  accumulations between 4 and 9 inches.

* WHERE...Southern Trinity.

* WHEN...For the first Winter Weather Advisory, until 7 PM PST this 
  evening. For the second Winter Weather Advisory, from 10 AM 
  Thursday to 10 AM PST Friday.

* IMPACTS...Travel could be very difficult. Roads, and especially 
  bridges and overpasses, will likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ101-060200-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0200Z/
Coastal Del Norte-
Including Crescent City, Smith River, and Klamath
250 PM PST Wed Feb 5 2025

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

* WHAT...Small hail accumulation will make roads icy and hazardous.

* WHERE...Del Norte Coast.

* WHEN...Until 6 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ106-060300-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Southern Humboldt Interior-
Including Dinsmore
250 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...Snow ABOVE 1500 FEET. Additional snow accumulations up to 
  one inch.

* WHERE...Southern Humboldt Interior.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Plan on slippery road 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

JLW
341 
WWUS46 KEKA 060157
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
557 PM PST Wed Feb 5 2025

CAZ101-060300-
/O.EXP.KEKA.WW.Y.0003.000000T0000Z-250206T0200Z/
Coastal Del Norte-
Including Smith River, Crescent City, and Klamath
557 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 PM PST THIS EVENING...

The threat has ended.

$$

CAZ102-061000-
/O.CON.KEKA.WS.W.0003.000000T0000Z-250206T0600Z/
/O.CON.KEKA.WW.Y.0004.250207T0000Z-250207T1800Z/
Del Norte Interior-
Including Gasquet and Hwy 199-Collier Tunnel
557 PM PST Wed Feb 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS 
EVENING ABOVE 1500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THURSDAY TO 
10 AM PST FRIDAY...

* WHAT...For the Winter Storm Warning ABOVE 1500 FEET, heavy snow. 
  Additional snow accumulations up to 3 inches. For the Winter 
  Weather Advisory ABOVE 2500 FEET, snow expected. Total snow 
  accumulations up to 6 inches.

* WHERE...Del Norte Interior.

* WHEN...For the Winter Storm Warning, until 10 PM PST this evening. 
  For the Winter Weather Advisory, from 4 PM Thursday to 10 AM PST 
  Friday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Visibilities may drop below 1/4 
  mile due to falling and blowing snow. The strong winds and weight 
  of snow on tree limbs may down power lines and could cause 
  sporadic power outages. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Persons should delay all travel if possible. If travel is absolutely 
necessary, drive with extreme caution and be prepared for sudden 
changes in visibility. Leave plenty of room between you and the 
motorist ahead of you, and allow extra time to reach your 
destination. Avoid sudden braking or acceleration, and be especially 
cautious on hills or when making turns. Make sure your car is 
winterized and in good working order.

Persons should consider delaying all travel. Motorists should use 
extreme caution if travel is absolutely necessary.

Persons should consider delaying all travel. If travel is absolutely 
necessary, drive with extreme caution. Consider taking a winter 
storm kit along with you, including such items as tire chains, 
booster cables, flashlight, shovel, blankets and extra clothing. 
Also take water, a first aid kit, and anything else that would help 
you survive in case you become stranded.

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

CAZ107-061000-
/O.CON.KEKA.WS.W.0004.250206T1800Z-250207T1800Z/
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Northern Trinity-
Including Hwy 3-Scott Mountain
557 PM PST Wed Feb 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THURSDAY TO 10 
AM PST FRIDAY...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...For the Winter Weather Advisory ABOVE 1500 FEET, snow. 
  Additional snow accumulations up to one inch. For the Winter Storm 
  Warning ABOVE 2500, heavy snow expected. Total snow accumulations 
  between 8 and 13 inches.

* WHERE...Northern Trinity.

* WHEN...For the Winter Weather Advisory, until 7 PM PST this 
  evening. For the Winter Storm Warning, from 10 AM Thursday to 10 
  AM PST Friday.

* IMPACTS...Travel could be very difficult. Roads, and especially 
  bridges and overpasses, will likely become slick and hazardous.

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 you are calling from can be obtained by calling 5 1 1.

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ105-061000-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
/O.CON.KEKA.WW.Y.0004.250207T0000Z-250207T1800Z/
Northern Humboldt Interior-
Including Hwy 101-Prairie Creek Summit, Orleans, Hwy 299-Berry
Summit, and Bald Hills Rd
557 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THURSDAY TO 
10 AM PST FRIDAY...

* WHAT...For the first Winter Weather Advisory ABOVE 1500 FEET, 
  snow. Additional snow accumulations up to one inch. For the second 
  Winter Weather Advisory ABOVE 2500 FEET, snow expected. Total snow 
  accumulations between 2 and 8 inches.

* WHERE...Northern Humboldt Interior.

* WHEN...For the first Winter Weather Advisory, until 7 PM PST this 
  evening. For the second Winter Weather Advisory, from 4 PM 
  Thursday to 10 AM PST Friday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ108-061000-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
/O.CON.KEKA.WW.Y.0004.250206T1800Z-250207T1800Z/
Southern Trinity-
Including Ruth
557 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THURSDAY TO 
10 AM PST FRIDAY...

* WHAT...For the first Winter Weather Advisory ABOVE 1500 FEET, 
  snow. Additional snow accumulations up to one inch. For the second 
  Winter Weather Advisory ABOVE 2500, snow expected. Total snow 
  accumulations between 4 and 9 inches.

* WHERE...Southern Trinity.

* WHEN...For the first Winter Weather Advisory, until 7 PM PST this 
  evening. For the second Winter Weather Advisory, from 10 AM 
  Thursday to 10 AM PST Friday.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

CAZ106-060300-
/O.CON.KEKA.WW.Y.0003.000000T0000Z-250206T0300Z/
Southern Humboldt Interior-
Including Dinsmore
557 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS 
EVENING ABOVE 1500 FEET...

* WHAT...For the first Winter Weather Advisory ABOVE 1500 FEET, 
  snow. Additional snow accumulations up to one inch. For the second 
  Winter Weather Advisory ABOVE 2500 FEET, snow expected. Total snow 
  accumulations between 2 and 8 inches.

* WHERE...Southern Humboldt Interior.

* WHEN...Until 7 PM PST this evening.

* IMPACTS...Roads, and especially bridges and overpasses, will 
  likely become slick and hazardous. Plan on slippery road 
  conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

Persons are urged to stay indoors until conditions improve. If you 
must go outside, dress in layers. Several layers of clothes will 
keep you warmer than a single heavy coat. Cover exposed skin to 
reduce your risk of frostbite or hypothermia. Gloves, a scarf, and a 
hat will keep you from losing your body heat.

Be prepared for slippery roads. Slow down and use caution while 
driving. If you are going outside, watch your first few steps taken 
on stairs, sidewalks, and driveways. These surfaces could be icy and 
slippery, increasing your risk of a fall and injury.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

ZVS
796 
WWUS46 KEKA 060421
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
821 PM PST Wed Feb 5 2025

CAZ102-061230-
/O.CAN.KEKA.WS.W.0003.000000T0000Z-250206T0600Z/
/O.CON.KEKA.WW.Y.0004.250207T0000Z-250207T1800Z/
Del Norte Interior-
Including Gasquet and Hwy 199-Collier Tunnel
821 PM PST Wed Feb 5 2025

...WINTER STORM WARNING IS CANCELLED...
...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THURSDAY TO 
10 AM PST FRIDAY...

* WHAT...Snow expected above 2500 feet. Total snow accumulations up 
  to 6 inches.

* WHERE...Del Norte Interior.

* WHEN...From 4 PM Thursday to 10 AM PST Friday.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Including Highway 199 at Collier Tunnel.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

CAZ107-061230-
/O.CON.KEKA.WS.W.0004.250206T1800Z-250207T1800Z/
Northern Trinity-
Including Hwy 3-Scott Mountain
821 PM PST Wed Feb 5 2025

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 AM THURSDAY TO 10 
AM PST FRIDAY...

* WHAT...Heavy snow expected. Total snow accumulations between 8 and 
  13 inches.

* WHERE...Northern Trinity.

* WHEN...From 10 AM Thursday to 10 AM PST Friday.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Including Highway 3 at Scott Mountain Pass.

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 you are calling from can be obtained by calling 5 1 1.

&&

$$

CAZ108-061230-
/O.CON.KEKA.WW.Y.0004.250206T1800Z-250207T1800Z/
Southern Trinity-
821 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 AM THURSDAY TO 
10 AM PST FRIDAY...

* WHAT...Snow expected. Total snow accumulations between 4 and 9 
  inches.

* WHERE...Southern Trinity.

* WHEN...From 10 AM Thursday to 10 AM PST Friday.

* IMPACTS...Travel could be very difficult.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

CAZ105-061230-
/O.CON.KEKA.WW.Y.0004.250207T0000Z-250207T1800Z/
Northern Humboldt Interior-
Including Hwy 299-Berry Summit
821 PM PST Wed Feb 5 2025

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THURSDAY TO 
10 AM PST FRIDAY...

* WHAT...Snow expected above 2500 feet. Total snow accumulations 
  between 2 and 8 inches.

* WHERE...Northern Humboldt Interior.

* WHEN...From 4 PM Thursday to 10 AM PST Friday.

* IMPACTS...Travel could be very difficult.

* ADDITIONAL DETAILS...Including Highway 299 at Berry Summits.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Slow down and use caution while traveling. The latest road 
conditions for the state you are calling from can be obtained by 
calling 5 1 1.

&&

$$

For hazard areas see https://www.wrh.noaa.gov/map/?wfo=eka

ZVS

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 Eureka, CA wrote its last area forecast discussion before this winter storm warning went out at Feb 4, 3:47 PM PST, 6 hours 25 minutes earlier.

Area forecast discussion, Feb 4, 3:47 PM PST, 6 hours 25 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
347 PM PST Tue Feb 4 2025

.SYNOPSIS...A band of rain and snow is moving through the area and
and on to the east. Showers are expected to return later this
evening and overnight in Humboldt and Del Norte counties. Wednesday
and Thursday rain and snow showers will continue, mainly in
Humboldt and Del Norte counties. Friday and Saturday may see a
few lingering showers with dry and chilly weather expected Sunday
and Monday.

&&

.DISCUSSION...A cold upper level trough is over the northeast
Pacific. This afternoon and shortwave moving around the base of
the low is bringing another round of rain and snow to the area.
Snow levels are lowest in the north with snow levels around 500 to
1000 feet in Humboldt county. Some snow has even been reported
down to near sea level. Farther north in Del Norte county there is
also cold air, but very little precip is falling near the coast
with some heavier precip farther inland. Late this afternoon and
evening rain and snow are coming to an end as this shortwave
moves out of the area. Once this moves out of the area chilly
temperatures are expected. Any areas that do clear out may see
freezing temperatures. This could make potentially dangerous
travel conditions tonight if black ice forms.

Late this evening and overnight the next round of rain and snow
showers are expected to move into the area. This is expected to
bring precip to mainly Humboldt and Del Norte counties. Some light
precip is expected in Trinity county and northern Mendocino
county. This will arrive with some colder air and snow levels are
expected to be around 1000 to 1500 feet possibly warming to 2000
feet by Wednesday afternoon. 3 to 6 inches of snow is expected
with locally higher amounts at the higher elevations. This cold
air may bring some instability to the waters and the coastal
areas of Humboldt and Del Norte counties. This could bring some
small hail showers or even a thunderstorm.

There may be a brief break in the rain Wednesday night before
another round of rain and snow is expected on Thursday. Snow
levels are expected to be higher with this, around 2500 to 3000
feet. So there may still be impacts to the highway passes.

Friday and Saturday the upper level trough remains near the area.
This will keep temperatures chilly, especially the overnight
lows. Some very light precip is possible, but at this point it
doesn't look too likely. Sunday and Monday cool and dry conditions
are expected. MKK

&&

.AVIATION...Flight categories have been deteriorating this afternoon
with another surge of rainfall. Heaviest precipitation is still
focused in the southern half of the CWA; IFR conditions are expected
to continue at UKI for the next several hours as a stationary front
moves onshore. Coastal terminals will see broken MVFR ceilings and
scattered showers tonight into tomorrow with the arrival of a cold
upper trough. Model soundings are indicative of potential for
shallow convection embedded within these showers across the northern
Humboldt and Del Norte coasts on Wednesday - potential for scattered
thundershowers with small hail is possible especially after 12 PM.
UKI will remain largely MVFR with periods of IFR ceilings overnight
into Wednesday with higher potential for brief periods of clearing
than the coast. Generally unsettled/showery conditions expected to
continue through the day before a stronger system arrives Thursday.

&&

.MARINE...Gusty northerly winds and steep seas diminish in the
southern waters this evening as a stationary front finally moves SE.
Winds will turn southwesterly and redevelop on Wednesday as a cold
upper trough and surface low cycles off the PNW coast - small craft
conditions are likely with 20 to 25 knot gusts and 7 to 10 foot
seas, especially in the northern waters. Scattered convection
embedded within lingering rain showers is also possible as this low
gradually weakens. Several small to moderate swells will make for a
conflicting sea state for the remainder of the week as winds turn
northerly again by Friday.

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...
     Winter Weather Advisory from 4 AM to 7 PM PST Wednesday for
     CAZ102-104-106.

     Winter Weather Advisory until 5 PM PST this afternoon for
     CAZ104.

     Winter Weather Advisory until 7 PM PST Wednesday for CAZ105.

     Winter Weather Advisory until 3 AM PST Wednesday for CAZ106-
     108.

     Winter Storm Warning until 4 AM PST Wednesday for CAZ107.

     Flood Watch until 8 PM PST this evening for CAZ114-115.

NORTHWEST CALIFORNIA COASTAL WATERS...
     Small Craft Advisory until 9 PM PST this evening for PZZ475.

&&

Visit us at https://www.weather.gov/eureka

Follow us on Facebook and Twitter at:
https://www.facebook.com/NWSEureka
https://www.twitter.com/NWSEureka

For forecast zone information
see the forecast zone map online:
https://www.weather.gov/images/eka/zonemap.png

In the hours before

Local storm report, Feb 4, 5:47 PM PST, 4 hours 25 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
547 PM PST Tue Feb 4 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0408 PM     Landslide        Adams                   38.86N 122.72W
02/04/2025                   Lake               CA   Law Enforcement

            MUD SLIDE COVERING 1/2 LANE 175 MM 20.62.

&&

ZVS
Local storm report, Feb 4, 5:49 PM PST, 4 hours 23 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
549 PM PST Tue Feb 4 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0523 PM     Landslide        Whispering Pines        38.81N 122.71W
02/04/2025                   Lake               CA   Law Enforcement

            SLIDE IS COVERING HALF RDWY.

&&

ZVS
Local storm report, Feb 4, 5:52 PM PST, 4 hours 20 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
552 PM PST Tue Feb 4 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0546 PM     Flood            1 NW Finley             39.01N 122.89W
02/04/2025                   Lake               CA   Law Enforcement

            RDWY FLOODED/ 2 VEHS STALLED/PARTIES ARE
            STILL DRIVING THROUGH WATER.

&&

ZVS
Local storm report, Feb 4, 7:31 PM PST, 2 hours 41 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
731 PM PST Tue Feb 4 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0500 PM     Snow             2 WNW Ruth              40.29N 123.44W
02/04/2025  M3.0 Inch        Trinity            CA   Trained Spotter

            3 inches of snow from 1045AM to 4PM.

&&

ZVS
Local storm report, Feb 4, 9:53 PM PST, 19 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
953 PM PST Tue Feb 4 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0657 PM     Flood            1 WNW Talmage           39.14N 123.19W
02/04/2025                   Mendocino          CA   Law Enforcement

            ROADWAY FLOODING NR THE BRIDGE. 14B ADVS
            RDWY HAS BEEN CLOSED.

&&

ZVS
Local storm report, Feb 4, 10:03 PM PST, 9 minutes before
Preliminary Local Storm Report
National Weather Service Eureka CA
1003 PM PST Tue Feb 4 2025

..TIME...   ...EVENT...      ...CITY LOCATION...     ...LAT.LON...
..DATE...   ....MAG....      ..COUNTY LOCATION..ST.. ...SOURCE....
            ..REMARKS..

0801 PM     Snow             Miranda                 40.23N 123.82W
02/04/2025  M1.0 Inch        Humboldt           CA   Public

            1 INCH OF SNOW AT 800 FEET.

&&

ZVS

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 4, 6:29 PM PSTWinter Weather AdvisoryEKADel Norte, Humboldt, Trinity25 hr
Feb 5, 2:50 PM PSTWinter Storm WarningEKATrinity41 hr
Feb 5, 2:50 PM PSTWinter Weather AdvisoryEKADel Norte, Humboldt, Trinity41 hr

Nearby

Winter Storm Warnings in California, 2025Every winter storm warning in 2025

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.