Alert archive / California / Winter Storm Warnings in 2019

Winter Storm Warning 1, NWS Eureka, CA

January 4, 2019Mendocino County, Trinity County, California

NWS Eureka, CA issued this winter storm warning at Jan 4, 2019, 4:36 AM PST for Mendocino County, Trinity County, California. It took effect at Jan 5, 2019, 4:00 AM PST. It was in force for 18 hr. 2 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Jan 4, 2019, 4:36 AM PST (12:36 UTC)
In effect from
Jan 5, 2019, 4:00 AM PST
Expired
Jan 5, 2019, 10:00 PM PST
In force
18 hr
Issued by
NWS Eureka, CA

Counties Mendocino County, CA, Trinity County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 100 km from the middle of the area, began a volume at 12:39 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.

What was reported inside it

TimeReportWhereRemark
Jan 5, 12:31 PM PSTSNOW 26 Se Lewiston, CACHP REPORT WITH PHOTO OF ACCUMULATING SNOW AT BUCKHORN SUMMIT (3,213 FT). NO SNOW MEASUREMENT WAS MADE HOWEVER SLUSH WAS COMPLETELY COVERING THE ROAD.
Jan 5, 3:30 PM PSTSNOW 2.56 W Forest Glen, CASOUTH FORK MOUNTAIN SUMMIT ON HIGHWAY 36. ELEVATION 4110. RAINING AT TIME OF OBSERVATION, & ROAD JUST WET. ESTIMATED 2 TO 3 INCHES SNOW ALONG ROADSIDE AT TIME OF OBSERVATION.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 0.6 hours before the alert went out and 262 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 2019-01-04Temperature 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 2019-01-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 247 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
1489 m above ground
0-6 km bulk shear
65 kt
0-1 km storm-relative helicity
247 m²/s²
0-3 km storm-relative helicity
345 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

046 
WWUS46 KEKA 041236
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
436 AM PST Fri Jan 4 2019

CAZ107-108-042045-
/O.UPG.KEKA.WS.A.0001.190105T1600Z-190106T0200Z/
/O.NEW.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northern Trinity-Southern Trinity-
436 AM PST Fri Jan 4 2019

...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 10 PM PST
SATURDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Tree branches could fall as well. Total snow accumulations of 4
  to 7 inches. Localized amounts of 20+ inches above 3,000 feet are
  expected.

* WHERE...Trinity County. Highways impacted include Highway 299 at
  Buckhorn Summit, Highway 3 north of Weaverville and Hayfork
  Summit, and Highway 36 at South Fork Mountain and areas east of
  there.

* WHEN...4 AM to 10 PM Saturday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ111-042045-
/O.UPG.KEKA.WS.A.0001.190105T1200Z-190106T0200Z/
/O.NEW.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northeastern Mendocino Interior-
436 AM PST Fri Jan 4 2019

...WINTER STORM WARNING IN EFFECT FROM 4 AM TO 10 PM PST
SATURDAY ABOVE 3500 FEET...

* WHAT...Heavy wet snow expected. Plan on difficult travel
  conditions. Tree branches could fall as well. Total wet snow
  accumulations of 2 to 5 inches. Localized amounts of 20+ inches
  in areas above 3,500 feet are expected.

* WHERE...Northeastern Mendocino County Interior above 3,500 feet.

* WHEN...4 AM to 10 PM Saturday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$
7 follow-up statements
550 
WWUS46 KEKA 041446
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
646 AM PST Fri Jan 4 2019

CAZ107-108-042100-
/O.CON.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northern Trinity-Southern Trinity-
646 AM PST Fri Jan 4 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
SATURDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Tree branches could fall as well. Total snow accumulations of 4
  to 7 inches. Localized amounts up to 16 inches above 3,000 feet 
  are expected.

* WHERE...Trinity County. Highways impacted include Trinity
  County. Highways impacted include Highway 299 at Buckhorn
  Summit, Highway 3 north of Weaverville and Hayfork Summit, and
  Highway 36 at South Fork Mountain and areas east of there.

* WHEN...4 AM to 10 PM Saturday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ111-042100-
/O.CON.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northeastern Mendocino Interior-
646 AM PST Fri Jan 4 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
SATURDAY ABOVE 3500 FEET...

* WHAT...Heavy wet snow expected. Plan on difficult travel
  conditions. Damage to trees and power lines is possible. Total
  wet snow accumulations of 2 to 5 inches. Localized amounts up 
  to 16 inches above 3,500 feet are expected.

* WHERE...Northeastern Mendocino County Interior above 3,500 feet.

* WHEN...4 AM to 10 PM Saturday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$
623 
WWUS46 KEKA 041449 CCA
WSWEKA

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service Eureka CA
649 AM PST Fri Jan 4 2019

CAZ107-108-042100-
/O.COR.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northern Trinity-Southern Trinity-
649 AM PST Fri Jan 4 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
SATURDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Tree branches could fall as well. Total snow accumulations of 4
  to 7 inches between 3,000 feet and 4,000 feet. Localized 
  amounts up to 16 inches above 4,000 feet are expected.

* WHERE...Trinity County. Highways impacted include Trinity
  County. Highways impacted include Highway 299 at Buckhorn
  Summit, Highway 3 north of Weaverville and Hayfork Summit, and
  Highway 36 at South Fork Mountain and areas east of there.

* WHEN...4 AM to 10 PM Saturday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ111-042100-
/O.COR.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northeastern Mendocino Interior-
649 AM PST Fri Jan 4 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
SATURDAY ABOVE 3500 FEET...

* WHAT...Heavy wet snow expected. Plan on difficult travel
  conditions. Damage to trees and power lines is possible. Total
  snow accumulations of 2 to 5 inches between 3,500 feet and 
  4,500 feet. Localized amounts up to 16 inches above 4,500 feet 
  are expected.

* WHERE...Northeastern Mendocino County Interior above 3,500 feet.

* WHEN...4 AM to 10 PM Saturday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$
331 
WWUS46 KEKA 042101
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
101 PM PST Fri Jan 4 2019

...Strong winter storm to impact Trinity and northeast Mendocino 
counties...

.A strong front will bring mountain snow to the area late tonight
into Saturday. Lower snow levels are expected in Trinity and
northeast Mendocino county. In Trinity county some heavy wet snow
is possible as low as 2,000 feet. Amounts of 5 to 8 inches are
expected from 3,000 ft to 4,000 ft and amounts over 1 foot are
possible above 4,000 feet.

CAZ107-108-050515-
/O.CON.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northern Trinity-Southern Trinity-
101 PM PST Fri Jan 4 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
SATURDAY ABOVE 3000 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Damage to trees and power lines is possible. Total snow
  accumulations of 5 to 8 inches, with localized amounts up to 20 
  inches, are expected.

* WHERE...Trinity County. . Highways impacted include Trinity
  County. Highways impacted include Highway 299 at Buckhorn
  Summit, Highway 3 north of Weaverville and Hayfork Summit, and
  Highway 36 at South Fork Mountain and areas east of there.

* WHEN...4 AM to 10 PM Saturday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ111-050515-
/O.CON.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northeastern Mendocino Interior-
101 PM PST Fri Jan 4 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM TO 10 PM PST
SATURDAY ABOVE 3500 FEET...

* WHAT...Heavy wet snow expected. Plan on difficult travel 
  conditions. Expect damage to trees and power lines as well. 
  Total wet snow accumulations of 3 to 6 inches, with localized 
  amounts up to 19 inches, are expected.

* WHERE...Northeastern Mendocino County Interior above 3,500 feet.

* WHEN...4 AM to 10 PM Saturday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$
808 
WWUS46 KEKA 051114
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
314 AM PST Sat Jan 5 2019

...Strong winter storm to impact Trinity and northeast Mendocino
counties...

.A strong system will bring mountain snow to the area today. 
Lower snow levels are expected in Trinity and northeast Mendocino 
county. In Trinity county some heavy wet snow is possible as low 
as 2,000 feet. Amounts of 4 to 8 inches are expected from 3,000 
ft to 4,000 ft and amounts over 1 foot are possible above 4,000 
feet.

CAZ107-108-051915-
/O.CON.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northern Trinity-Southern Trinity-
314 AM PST Sat Jan 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3000 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Tree branches could fall as well. Total snow accumulations of 4
  to 8 inches, with localized amounts around 20 inches, are 
  expected.

* WHERE...Trinity County. Highways impacted include Highway 299 
  at Buckhorn Summit, Highway 3 north of Weaverville and Hayfork 
  Summit, and Highway 36 at South Fork Mountain and areas east of 
  there.

* WHEN...4 AM to 10 PM today.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ111-051915-
/O.CON.KEKA.WS.W.0001.190105T1200Z-190106T0600Z/
Northeastern Mendocino Interior-
314 AM PST Sat Jan 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3500 FEET...

* WHAT...Heavy wet snow expected. Plan on difficult travel 
  conditions. Damage to trees and power lines is possible. Total 
  wet snow accumulations of 3 to 6 inches, with localized 
  amounts up to 20 inches, are expected.

* WHERE...Northeastern Mendocino County Interior above 3,500 feet.

* WHEN...4 AM to 10 PM today.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$
894 
WWUS46 KEKA 051909
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1109 AM PST Sat Jan 5 2019

...Strong winter storm to impact Trinity and northeast Mendocino
counties...

.A strong system will bring mountain snow to the area today.
Lower snow levels are expected in Trinity and northeast Mendocino
county. In Trinity county some heavy wet snow is possible as low
as 2,000 feet. Amounts of 3 to 6 inches are expected from 3,000 
ft to 4,000 ft and amounts over 1 foot are possible above 4, 000 
feet.

CAZ107-108-060315-
/O.CON.KEKA.WS.W.0001.000000T0000Z-190106T0600Z/
Northern Trinity-Southern Trinity-
1109 AM PST Sat Jan 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3000 FEET...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions. Expect damage to trees and power lines as well. 
  Additional snow accumulations of 2 to 5 inches, with localized 
  amounts up to 16 inches, are expected.

* WHERE...Highways impacted include Highway 299 at Buckhorn 
  Summit, Highway 3 north of Weaverville and Hayfork Summit, and 
  Highway 36 at South Fork Mountain and areas east of there.

* WHEN...Until 10 PM today.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ111-060315-
/O.CON.KEKA.WS.W.0001.000000T0000Z-190106T0600Z/
Northeastern Mendocino Interior-
1109 AM PST Sat Jan 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3500 FEET...

* WHAT...Heavy wet snow occurring. Plan on difficult travel 
  conditions. Expect damage to trees and power lines as well. 
  Additional wet snow accumulations of 1 to 3 inches, with 
  localized amounts up to 9 inches, are expected.

* WHERE...Northeastern Mendocino County Interior above 3,500 feet.

* WHEN...Until 10 PM today.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$
623 
WWUS46 KEKA 052333
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
333 PM PST Sat Jan 5 2019

...Winter storm to impact Northwest California...

.A strong system will bring mountain snow to the area this
afternoon and will continue into the evening and overnight. Snow
levels will fall across the region to around 3,000 feet. Sunday
afternoon a second system will bring additional snow. Snow levels
in Trinity county are expected to be around 3,000 feet with other
areas remaining rising above 4,000 feet on Sunday. 

CAZ107-108-060745-
/O.NEW.KEKA.WS.A.0002.190106T1500Z-190107T0500Z/
/O.CON.KEKA.WS.W.0001.000000T0000Z-190106T0600Z/
Northern Trinity-Southern Trinity-
333 PM PST Sat Jan 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3000 FEET...
...WINTER STORM WATCH IN EFFECT FROM SUNDAY MORNING THROUGH
SUNDAY EVENING ABOVE 3000 FEET...

* WHAT...This evening...Heavy wet snow occurring above 3000 feet.
  Heavy snow possible above 3000 feet. Plan on difficult travel
  conditions. Above 3000 feet, additional wet snow accumulations 
  of 3 to 6 inches, with localized amounts up to 9 inches, are 
  expected. 

* WHAT...Sunday...Above 3000 feet, total snow accumulations of 4 
  to 7 inches, with localized amounts up to 16 inches, are 
  possible.

* WHERE...Trinity County. Highways impacted include Highway 299 
  at Buckhorn Summit, Highway 3 north of Weaverville and Hayfork 
  Summit, and Highway 36 at South Fork Mountain and areas east of 
  there.

* WHEN...For the Winter Storm Warning, until 10 PM today. For 
  the Winter Storm Watch, from Sunday morning through Sunday 
  evening.

* ADDITIONAL DETAILS...Slow down, allow extra time and be prepared
  for changing conditions. Check the latest forecasts and call
  1-800-427-7623 for current road conditions and chain
  requirements before traveling. Be alert for rock slides in
  mountainous terrain. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before travelling. Be alert for rock slides in
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

&&

$$

CAZ111-060600-
/O.CON.KEKA.WS.W.0001.000000T0000Z-190106T0600Z/
Northeastern Mendocino Interior-
333 PM PST Sat Jan 5 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3500 FEET...

* WHAT...Heavy wet snow occurring. Plan on difficult travel 
  conditions. Expect damage to trees and power lines as well. 
  Additional wet snow accumulations of 1 to 3 inches, with 
  localized amounts up to 5 inches, are expected.

* WHERE...Northeastern Mendocino County Interior above 3,500 feet.

* WHEN...Until 10 PM today.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for wet snow means severe winter weather
conditions are occurring. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before travelling. Be alert for rock slides in
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ102-105-106-060745-
/O.NEW.KEKA.WW.Y.0001.190106T0200Z-190106T1200Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-
333 PM PST Sat Jan 5 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SUNDAY ABOVE
3000 FEET...

* WHAT...Wet snow expected. Plan on slippery road conditions.
  Expect damage to trees and power lines as well. Total wet snow
  accumulations of 2 to 4 inches, with localized amounts up to 6 
  inches, are expected.

* WHERE...Del Norte Interior and Humboldt Interior. Highways 
  impacted include rural roads above 3,000 feet..

* WHEN...6 PM today to 4 AM Sunday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for wet snow means periods of wet snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving. 

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$
448 
WWUS46 KEKA 060611
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1011 PM PST Sat Jan 5 2019

...Winter storm to impact Northwest California...

.Another storm system will track toward northwest California for
Sunday. Snow levels around Trinity county and adjacent areas of
northern Humboldt and interior Del Norte County are expected to 
be around 3,000 feet Sunday morning. Portions of those areas will
see snow levels rise from 3,000 feet to closer to 4,000 feet by
Sunday evening. 


CAZ107-108-061415-
/O.EXP.KEKA.WS.W.0001.000000T0000Z-190106T0600Z/
/O.UPG.KEKA.WS.A.0002.190106T1500Z-190107T0500Z/
/O.NEW.KEKA.WS.W.0002.190106T1500Z-190107T0600Z/
Northern Trinity-Southern Trinity-
1011 PM PST Sat Jan 5 2019

...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 10 PM PST SUNDAY
ABOVE 3000 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Tree branches could fall as well. Total snow accumulations of 4
  to 8 inches above 3000 feet, with localized amounts up to 18
  inches above 4000 feet, are expected.

* WHERE...Trinity County. Highways impacted include Highway 299 at
  Buckhorn Summit, Highway 3 north of Weaverville and Hayfork
  Summit, Highway 36 at South Fork Mountain and areas east of 
  there.

* WHEN...7 AM to 10 PM Sunday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before travailing. Be alert for rock slides in
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ111-060715-
/O.EXP.KEKA.WS.W.0001.000000T0000Z-190106T0600Z/
Northeastern Mendocino Interior-
1011 PM PST Sat Jan 5 2019

...WINTER STORM WARNING HAS EXPIRED...

$$

CAZ102-105-061415-
/O.NEW.KEKA.WS.W.0002.190106T1500Z-190107T0600Z/
/O.CON.KEKA.WW.Y.0001.000000T0000Z-190106T1200Z/
Del Norte Interior-Northern Humboldt Interior-
1011 PM PST Sat Jan 5 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
SUNDAY ABOVE 3000 FEET...
...WINTER STORM WARNING IN EFFECT FROM 7 AM TO 10 PM PST SUNDAY
ABOVE 3000 FEET...

* WHAT...Heavy snow expected above 3000 feet. Plan on difficult
  travel conditions. Damage to trees and power lines is possible.
  Above 3000 feet, total snow accumulations of 4 to 7 inches are
  expected. Localized amounts up to 15 inches above 4000 are
  possible.

* WHERE...Del Norte Interior and Northern Humboldt Interior
  County. Rural roads above 3000 ft elevation will be impacted,
  while only minor accumulations are expected on highway passes
  below 3000 ft Sunday morning. 

* WHEN...For the Winter Storm Warning, 7 AM to 10 PM Sunday. For 
  the Winter Weather Advisory, until 4 AM Sunday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain. Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1- 800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Warning for snow means severe winter weather
conditions are expected. If you must travel, keep an extra
flashlight, food and water in your vehicle in case of an
emergency. If driving, slow down. Allow extra time and be
prepared for changing conditions. Check the latest forecasts and
call 1-800-427-7623 for current road conditions and chain
requirements before traveling. Be alert for rock slides in 
mountainous terrain.

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

A Winter Weather Advisory for wet snow means periods of wet snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving. 

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

CAZ106-061200-
/O.CON.KEKA.WW.Y.0001.000000T0000Z-190106T1200Z/
Southern Humboldt Interior-
1011 PM PST Sat Jan 5 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
SUNDAY ABOVE 3000 FEET...

* WHAT...Wet snow occurring. Plan on slippery road conditions.
  Tree branches could fall as well. Additional wet snow
  accumulations of up to two inches, with localized amounts up to
  4 inches, are expected.

* WHERE...Southern Humboldt County Interior. Rural roads above
  3000 feet elevation will be impacted. 

* WHEN...Until 4 AM Sunday.

* ADDITIONAL DETAILS...Slow down, allow extra time and be 
  prepared for changing conditions. Check the latest forecasts 
  and call 1-800-427-7623 for current road conditions and chain 
  requirements before traveling. Be alert for rock slides in 
  mountainous terrain.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for wet snow means periods of wet snow
will cause primarily travel difficulties. Be prepared for snow
covered roads and limited visibilities, and use caution while
driving. 

For a detailed view of the hazard area visit:
http://www.wrh.noaa.gov/map/?wfo=eka

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 4, 3:05 AM PSTGale WarningEKA42 hr
Jan 4, 3:05 AM PSTHazardous Seas WarningEKA15 hr
Jan 4, 4:21 AM PSTHigh Wind WarningEKADel Norte, Humboldt38 hr
Jan 4, 4:21 AM PSTWind AdvisoryEKADel Norte, Humboldt, Mendocino, Trinity38 hr

Nearby

Winter Storm Warnings in California, 2019Every winter storm warning in 2019

Sources

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