Alert archive / California / Winter Storm Warnings in 2019

Winter Storm Warning 3, NWS Eureka, CA

February 2, 20194 counties in California

NWS Eureka, CA issued this winter storm warning at Feb 2, 2019, 2:43 PM PST for 4 counties in California. It took effect at Feb 3, 2019, 4:00 PM PST. It was in force for 30 hr. 31 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
Feb 2, 2019, 2:43 PM PST (22:43 UTC)
In effect from
Feb 3, 2019, 4:00 PM PST
Expired
Feb 4, 2019, 10:00 PM PST
In force
30 hr
Issued by
NWS Eureka, CA

Counties Del Norte County, CA, Humboldt County, CA, Mendocino County, CA, Trinity County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 60 km from the middle of the area, began a volume at 22:45 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
Feb 4, 8:15 AM PSTSNOW 54 Wsw Dinsmore, CA5 INCHES OF SNOW AS OF 8 AM SNOW STARTED SOMETIME AFTER MIDNIGHT. ELEVATION 2700 FEET.
Feb 4, 8:24 AM PSTSNOW 4.59 Nw Dos Rios, CA4-5 INCHES OF SNOW ON THE GROUND. ELEVATION 3750 FEET.
Feb 4, 8:30 AM PSTSNOW 0.34 S Honeydew, CASNOW BEGAN TO FALL AT 8 AM AT 1500 FEET SO FAR A LITTLE MORE THAN A QUARTER OF AN INCH ON THE GROUND.
Feb 4, 8:35 AM PSTSNOW 0Mckinleyville, CALIGHT SNOW MIXING WITH RAIN. ELEVATION 250 FEET.
Feb 4, 8:39 AM PSTSNOW 01 N Eureka, CALIGHT SNOW MIXED WITH RAIN. ELEVATION 20 FEET.
Feb 4, 8:57 AM PSTSNOW 01 E Mckinleyville, CASNOW ACCUMULATING ON RAISED SURFACES ROADS ARE STILL CLEAR. ELEVATION 82 FEET.
Feb 4, 9:00 AM PSTSNOW 0.54 Ene Myers Flat, CASOCIAL MEDIA POST SHOWING AROUND A HALF AN INCH IN FRUITLAND RIDGE THIS MORNING AROUND 9 AM AT AN ELEVATION AROUND 1,200 FEET.
Feb 4, 9:07 AM PSTSNOW 02 N Blue Lake, CAMIX OF SLEET AND SNOW BECOMING MOSTLY SNOW. ASPHALT HAS BECOME WHITE. ELEVATION 800 FEET.
Feb 4, 9:26 AM PSTSNOW 0.34 Ssw Blue Lake, CALOCATION APPROXIMATED. SNOW BEGAN FALLING AROUND 8 AM AND HAS ACCUMULATED APPROXIMATELY A THIRD OF AN INCH. ELEVATION 925 FEET.
Feb 4, 9:31 AM PSTSNOW 14 Ene Garberville, CALOCATION AND MAGNITUDE APPROXIMATED FROM SOCIAL MEDIA POST. AT LEAST ONE INCH OF SNOW ON THE GROUND. ELEVATION AROUND 2500 FEET.
Feb 4, 9:32 AM PSTSNOW 6Kneeland, CAFACEBOOK REPORT OF 6 INCHES OF SNOW ON THE GROUND. ELEVATION 2500 FEET.
Feb 4, 10:00 AM PSTSNOW 01 Ssw Douglas City, CASNOW JUST BEGINNING TO FALL. ELEVATION 1700 FEET.
Feb 4, 10:00 AM PSTSNOW 3.56 E Benbow, CAPUBLIC REPORT OF 3.5 INCHES OF SNOW. ELEVATION 2600 FEET.
Feb 4, 10:01 AM PSTSNOW 0.86 S Ferndale, CALOCATION ESTIMATED. FACEBOOK REPORT OF SNOW NEAR BUNKER HILL ELEVATION APPROXIMATELY 2000 FEET.
Feb 4, 10:11 AM PSTSNOW 6.51 Wnw Dinsmore, CAFACEBOOK REPORT LOCATION ESTIMATED. BUCK MOUNTAIN ELVATION 2500 FEET.
Feb 4, 10:40 AM PSTSNOW 42 Wnw Ruth, CAELEVATION 3100 FEET.
Feb 4, 10:55 AM PSTSNOW 02 S Arcata, CASNOW FELL FOR ABOUT 20 MINUTES FROM 10:35 TO 10:55 AM. ONLY STUCK TO CAR ROOFS FOR A SHORT TIME. ELEVATION 50 FEET.
Feb 4, 11:03 AM PSTSNOW 01 E Arcata, CASNOW BEGINNING TO STICK ON THE ROADS AT AN ELEVATION OF 400 FEET.
Feb 4, 11:04 AM PSTSNOW 127 E Fieldbrook, CAFACEBOOK REPORT, LOCATION ESTIMATED. 12 INCHES OF NEW SNOW ON WIREGRASS RIDGE. ELEVATION 3000 FEET.
Feb 4, 11:21 AM PSTSNOW 01 Nnw Loleta, CALOCATION ESTIMATED. SOCIAL MEDIA REPORT OF SNOW FALLING IN LOLETA. SNOW NOT STICKING ELEVATION 50 FEET.
Feb 4, 11:24 AM PSTSNOW 0.52 W Redwood Valley, CASNOW ACCUMULATING ON RIDGEWOOD GRADE ON HWY 101 LEADING TO SOME LANE CLOSURES. ELEVATION APPROXIMATELY 1100 FEET.
Feb 4, 11:51 AM PSTSNOW 0Ft Dick, CAFACEBOOK REPORT LOCATION ESTIMATED. SNOW FELL FOR APPROXIMATELY 15 MINUTES AND WAS STICKING TO THE TOPS OF VEHICLES BUT NOT ON THE GROUND.
Feb 4, 1:56 PM PSTSNOW 01 Ssw Douglas City, CAICE PELLETS TRANSITIONED TO SNOW AND IS NOW BEGINNING TO STICK.
Feb 4, 2:20 PM PSTSNOW 103 W Willow Creek, CAFACEBOOK REPORT AND PHOTO OF SNOW FROM HORSE MOUTNAIN.
Feb 4, 2:31 PM PSTSNOW 0Gualala, CASOCIAL MEDIA REPORT OF SNOW MIXING IN WITH RAIN.
Feb 4, 2:45 PM PSTSNOW 06 Se Lewiston, CASOCIAL MEDIA POST REPORTED SNOW NEAR HAWKINS BAR NEAR THE COUNTY LINE ON HIGHWAY 299.
Feb 4, 2:57 PM PSTSNOW 0Ukiah, CALOCATION ESTIMATED. SEVERAL SOCIAL MEDIA REPORTS AND PICTURES OF SNOW FALLING IN UKIAH. ELEVATION 845 FEET.
Feb 4, 2:57 PM PSTSNOW 0Ukiah, CALOCATION ESTIMATED. SEVERAL SOCIAL MEDIA REPORTS AND PICTURES OF SNOW FALLING IN UKIAH. ELEVATION APPROXIMATELY 600 FEET.
Feb 4, 7:25 PM PSTSNOW 01 Nw Fortuna, CALIGHT SNOW OCCURRED IN DOWNTOWN FORTUNA. NO MEASURABLE ACCUMULATION. ELEVATION WAS 66 FEET.
Feb 4, 7:25 PM PSTSNOW 0Fortuna, CALIGHT SNOW FELL AROUND DOWNTOWN FORTUNA...SLIGHTLY STICKING. TEMPERATURE 35 DEGREES. ELEVATION 66 FEET.
Feb 4, 7:56 PM PSTSNOW 01 N Fortuna, CASOCIAL MEDIA POST SHOWING A DUSTING JUST NORTH OF FORTUNA AN ELEVATION OF 284 FEET.

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, 10.7 hours before the alert went out and 204 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 2019-02-02Temperature 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 2019-02-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 192 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
739 m above ground
0-6 km bulk shear
36 kt
0-1 km storm-relative helicity
192 m²/s²
0-3 km storm-relative helicity
288 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

104 
WWUS46 KEKA 022243
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
243 PM PST Sat Feb 2 2019

...Winter Storm to Bring Low Snow Levels to Northwest California
late Sunday through Monday...

.A potent area of low pressure will continue to track toward the 
Bay Area this evening. Snow levels will remain above 5000 feet 
through tonight. On Sunday and Monday, additional waves of low 
pressure will pass across northwest California, accompanied by 
numerous showers and increasingly cold air. Snow levels will fall 
to around 2500 feet near the Oregon border by Sunday afternoon and
continue to drop into the 1000 to 1500 feet range by Monday. 
Moderate to heavy snow accumulations will occur above 2500 feet 
Sunday night into Monday. Several inches will be possible above 
1500 feet by late Monday across northern Trinity, Humboldt, and 
Del Norte counties.

CAZ102-105-107-030645-
/O.UPG.KEKA.WS.A.0003.190204T0000Z-190205T0600Z/
/O.NEW.KEKA.WS.W.0003.190204T0000Z-190205T0600Z/
Del Norte Interior-Northern Humboldt Interior-Northern Trinity-
243 PM PST Sat Feb 2 2019

...WINTER STORM WARNING IN EFFECT FROM 4 PM SUNDAY TO 10 PM PST
MONDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected. Travel will be very difficult to
  impossible. Total snow accumulations of 9 to 13 inches, with 
  localized amounts up to 28 inches, are expected.

* WHERE...Del Norte Interior, Northern Humboldt Interior and
  Northern Trinity County. Heavy snow accumulations are expected 
  over Highway 299 passes of Berry Summit, Oregon Mountain, and 
  Buckhorn Summit.

* WHEN...4 PM Sunday to 10 PM Monday.

* 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 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

&&

$$

CAZ106-108-110-111-030645-
/O.UPG.KEKA.WS.A.0003.190204T0600Z-190205T0600Z/
/O.NEW.KEKA.WS.W.0003.190204T0600Z-190205T0600Z/
Southern Humboldt Interior-Southern Trinity-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
243 PM PST Sat Feb 2 2019

...WINTER STORM WARNING IN EFFECT FROM 10 PM SUNDAY TO 10 PM PST
MONDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Total snow accumulations of 5 to 8 inches, with localized 
  amounts up to 17 inches, are expected.

* WHERE...Southern Humboldt Interior, Southern Trinity,
  Northwestern Mendocino Interior and Northeastern Mendocino
  County Interior. Highways impacted include Highway 3 north of 
  Weaverville and at Hayfork Summit, Highway 36 at South Fork 
  Mountain and points east.

* WHEN...10 PM Sunday to 10 PM Monday.

* 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 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

&&

$$
7 follow-up statements
334 
WWUS46 KEKA 030619
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1019 PM PST Sat Feb 2 2019

...Winter Storm to Bring Low Snow Levels to Northwest California
late Sunday through Monday...

.A potent area of low pressure will continue to track toward the
Bay Area this evening, and snow levels will remain above 4500 
feet through tonight. On Sunday and Monday, additional waves of 
low pressure will pass across northwest California, accompanied by
numerous showers and increasingly cold air. Snow levels will fall
to around 2500 feet near the Oregon border by Sunday afternoon 
and continue to drop into the 1000 to 1500 feet range by Monday. 
Moderate to heavy snow accumulations will occur above 2500 feet 
Sunday night into Monday. Several inches will be possible above 
1500 feet by late Monday across northern Trinity, Humboldt, and 
Del Norte counties.

CAZ102-105-107-031430-
/O.CON.KEKA.WS.W.0003.190204T0000Z-190205T0600Z/
Del Norte Interior-Northern Humboldt Interior-Northern Trinity-
1019 PM PST Sat Feb 2 2019

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

* WHAT...Heavy snow expected. Travel will be very difficult to 
  impossible, including during the morning commute on Monday. 
  Total snow accumulations of 9 to 13 inches, with localized 
  amounts up to 28 inches, are expected.

* WHERE...Del Norte Interior, Northern Humboldt Interior and
  Northern Trinity County. Heavy snow accumulations are expected
  over Highway 299 passes of Berry Summit, Oregon Mountain, and
  Buckhorn Summit, Highway 199 near Collier Tunnel, and
  potentially some light amounts along Highway 101 near Prairie
  Creek Summit.

* WHEN...4 PM Sunday to 10 PM Monday.

* 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 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

&&

$$

CAZ106-108-110-111-031430-
/O.CON.KEKA.WS.W.0003.190204T0600Z-190205T0600Z/
Southern Humboldt Interior-Southern Trinity-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
1019 PM PST Sat Feb 2 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM SUNDAY TO
10 PM PST MONDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions, including during the morning commute on Monday. 
  Total snow accumulations of 5 to 8 inches, with localized 
  amounts up to 17 inches, are expected.

* WHERE...Southern Humboldt Interior, Southern Trinity,
  Northwestern Mendocino Interior and Northeastern Mendocino
  County Interior. Highways impacted include Highway 3 north of
  Weaverville and at Hayfork Summit, Highway 36 at South Fork
  Mountain and points east...with light amounts expected well 
  below summit elevations.

* WHEN...10 PM Sunday to 10 PM Monday.

* 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 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

&&

$$
278 
WWUS46 KEKA 031429
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
629 AM PST Sun Feb 3 2019

...Winter Storm to Bring Low Snow Levels to Northwest California
late Sunday through Monday...

.A series of storm systems will sweep across northwest California,
accompanied by numerous showers and increasingly cold air. Snow 
levels will fall to around 2500 feet near the Oregon border by 
this afternoon and continue to drop to around 1000 feet by Monday.
Moderate to heavy snow accumulations will occur above 2500 feet 
Sunday night into Monday. Several inches will be possible above 
1500 feet by late Monday across northern Trinity, Humboldt, and 
Del Norte counties.

CAZ102-105-107-032230-
/O.CON.KEKA.WS.W.0003.190204T0000Z-190205T0600Z/
Del Norte Interior-Northern Humboldt Interior-Northern Trinity-
629 AM PST Sun Feb 3 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 PM MONDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected. Travel will be very difficult to
  impossible, including the morning commute on Monday. Total snow
  accumulations of 8 to 12 inches, with localized amounts up to 
  25 inches, are expected.

* WHERE...Del Norte Interior, Northern Humboldt Interior and
  Northern Trinity County. Heavy snow accumulations are expected
  over Highway 299 passes of Berry Summit, Oregon Mountain, and
  Buckhorn Summit, and Highway 199 near the Collier Tunnel.
  Potentially some light amounts along Highway 101 near Prairie
  Creek Summit.

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

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 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

$$

CAZ106-108-110-111-032230-
/O.CON.KEKA.WS.W.0003.190204T0600Z-190205T0600Z/
Southern Humboldt Interior-Southern Trinity-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
629 AM PST Sun Feb 3 2019

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

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions, including the morning commute on Monday. Total snow 
  accumulations of 6 to 9 inches, with localized amounts up to 18 
  inches, are expected.

* WHERE...Southern Humboldt Interior, Southern Trinity,
  Northwestern Mendocino Interior, and Northeastern Mendocino
  County Interior. Highways impacted include Highway 3 north of
  Weaverville and at Hayfork Summit, Highway 36 at South Fork
  Mountain and points east...with light amounts expected well 
  below summit elevations.

* WHEN...10 PM today to 10 PM Monday.

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 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

$$
997 
WWUS46 KEKA 032229
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
229 PM PST Sun Feb 3 2019

...Winter Storm to Bring Low Snow Levels to Northwest California
late Sunday through Monday...

.A series of storm systems will sweep across northwest California,
accompanied by numerous showers and increasingly cold air. Snow
levels will fall to around 2500 feet near the Oregon border this 
afternoon and continue to drop to around 1000 feet by Monday. 
Moderate to heavy snow accumulations will occur above 2500 feet 
Sunday night into Monday. Several inches will be possible above 
1500 feet by late Monday across northern Trinity, Humboldt, and 
Del Norte counties.

CAZ102-105-107-040700-
/O.CON.KEKA.WS.W.0003.190204T0000Z-190205T0600Z/
Del Norte Interior-Northern Humboldt Interior-Northern Trinity-
229 PM PST Sun Feb 3 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST MONDAY
ABOVE 2500 FEET...

* WHAT...Heavy snow expected. Travel will be very difficult to 
  impossible. Total snow accumulations of 8 to 12 inches, with 
  localized amounts up to 23 inches, are expected.

* WHERE...Del Norte Interior, Northern Humboldt Interior and
  Northern Trinity County. Heavy snow accumulations are expected
  over Highway 299 passes of Berry Summit, Oregon Mountain, and
  Buckhorn Summit, and Highway 199 near the Collier Tunnel.
  Potentially some light amounts along Highway 101 near Prairie
  Creek Summit.

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

* 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 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

&&

$$

CAZ106-108-110-111-040700-
/O.CON.KEKA.WS.W.0003.190204T0600Z-190205T0600Z/
Southern Humboldt Interior-Southern Trinity-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
229 PM PST Sun Feb 3 2019

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

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions, including during the morning commute on Monday. 
  Total snow accumulations of 6 to 9 inches, with localized 
  amounts up to 17 inches, are expected.

* WHERE...Southern Humboldt Interior, Southern Trinity,
  Northwestern Mendocino Interior and Northeastern Mendocino
  County Interior. Highways impacted include Highway 3 north of
  Weaverville and at Hayfork Summit, Highway 36 at South Fork
  Mountain and points east...with light amounts expected well 
  below summit elevations.

* WHEN...10 PM today to 10 PM Monday.

* 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 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

&&

$$
790 
WWUS46 KEKA 040706
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1106 PM PST Sun Feb 3 2019

...Winter Storm to Bring Low Snow Levels to Northwest California
late Sunday through Monday...

.A series of storm systems will sweep across northwest California,
accompanied by numerous showers and increasingly cold air. Snow
levels will fall to around 2500 feet tonight and continue to drop
to between 500 and 1500 feet by Monday. Moderate to heavy snow 
accumulations will occur above 2500 feet Sunday night into Monday,
with lower but still impactful snow accumulations between 1000 and
2500 feet. Some light accumulations will be possible as low as 500
feet in some areas as well. 

CAZ102-105>108-041515-
/O.CON.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
1106 PM PST Sun Feb 3 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST
MONDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the morning commute on Monday.
  Additional snow accumulations of 6 to 12 inches, with localized
  amounts up to 19 inches, are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Trinity
  County. Heavy snow accumulations are expected over Highway 299
  passes of Berry Summit, Oregon Mountain, and Buckhorn Summit,
  Highway 199 near Collier Tunnel, and many areas along Highway
  36. Potentially some light amounts along Highway 101 near 
  Prairie Creek Summit.

* WHEN...Until 10 PM Monday.

* 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 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

&&

$$

CAZ110-111-041515-
/O.CON.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
1106 PM PST Sun Feb 3 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST
MONDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the evening commute on Monday. 
  Additional snow accumulations of 3 to 6 inches, with localized 
  amounts up to 12 inches, are expected.

* WHERE...Northwestern Mendocino Interior and Northeastern
  Mendocino County Interior. Roadways impacted include mostly 
  rural roadways for heavy accumulations...but light accumulations
  will be possible at various locations along Highway 101.

* WHEN...Until 10 PM Monday.

* 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 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

&&

$$
377 
WWUS46 KEKA 041505
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
705 AM PST Mon Feb 4 2019

...Winter Storm to Bring Low Snow Levels to Northwest California
late Sunday through Monday...

.A cold storm systems will sweep across northwest California today,
accompanied by numerous showers and increasingly cold air. Snow 
levels will continue to drop to between 500 and 1500 feet today. 
Moderate to heavy snow accumulations will occur above 2500 feet 
today, with lower snow accumulations between 1000 and 2500 feet. 
Some light accumulations will be possible as low as 500 feet in 
some areas as well.

CAZ102-105>108-042315-
/O.CON.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
705 AM PST Mon Feb 4 2019

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

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the morning commute. Additional 
  snow accumulations of 2 to 5 inches, with localized amounts up 
  to 11 inches, are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Trinity
  County. Heavy snow accumulations are expected over Highway 299
  passes of Berry Summit, Oregon Mountain, and Buckhorn Summit,
  Highway 199 near Collier Tunnel, and many areas along Highway
  36. Potentially some light amounts along Highway 101 near 
  Prairie Creek Summit.

* WHEN...Until 10 PM today.

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 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

$$

CAZ110-111-042315-
/O.CON.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
705 AM PST Mon Feb 4 2019

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

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the evening commute. Additional 
  snow accumulations of 2 to 4 inches, with localized amounts up 
  to 11 inches, are expected.

* WHERE...Northwestern Mendocino Interior and Northeastern
  Mendocino County Interior. Roadways impacted include mostly 
  rural roadways for heavy accumulations...but light accumulations
  will be possible at various locations along Highway 101.

* WHEN...Until 10 PM today.

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 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

$$
629 
WWUS46 KEKA 042248
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
248 PM PST Mon Feb 4 2019

...Winter Storm to Bring Low Snow Levels to Northwest California
late Sunday through Monday...

.A cold storm systems will sweep across northwest California
through this evening, accompanied by numerous showers and 
increasingly cold air. Snow levels will continue to drop to 
between 500 and 1000 feet this evening. Moderate to heavy snow 
accumulations will occur above 2500 feet through this evening, 
with lower snow accumulations between 1000 and 2500 feet. Some 
light accumulations will be possible as low as 500 feet in some 
areas as well.

CAZ102-105>108-050600-
/O.CON.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
248 PM PST Mon Feb 4 2019

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

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the evening commute. Additional 
  snow accumulations of 1 to 3 inches are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Trinity
  County. Highways impacted include Highway 299 passes of Berry 
  Summit, Oregon Mountain, and Buckhorn Summit, Highway 199 near 
  Collier Tunnel, and many areas along Highway 36. Potentially 
  some light amounts along Highway 101 near Prairie Creek Summit.

* 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 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

&&

$$

CAZ110-111-050600-
/O.CON.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
248 PM PST Mon Feb 4 2019

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

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions, including during the evening commute. Additional 
  snow accumulations of 2 to 4 inches are expected.

* WHERE...Northwestern Mendocino Interior and Northeastern
  Mendocino County Interior. Roadways impacted include mostly 
  rural roadways for heavy accumulations...but light accumulations
  will be possible at various locations along Highway 101.

* 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 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

&&

$$
594 
WWUS46 KEKA 050531
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
931 PM PST Mon Feb 4 2019


CAZ107-108-051200-
/O.EXP.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
/O.NEW.KEKA.WW.Y.0002.190205T0600Z-190205T1200Z/
Northern Trinity-Southern Trinity-
931 PM PST Mon Feb 4 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST TUESDAY...
...WINTER STORM WARNING WILL EXPIRE AT 10 PM PST THIS EVENING...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of up to one inch. Chain controls in effect
  for portions of highway 3 and highway 36.

* WHERE...Trinity County. Highways impacted include highway 3 and
  highway 36 due to chain controls.

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

* 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 snow means periods of 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

&&

$$

CAZ102-105-106-050645-
/O.EXP.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-
931 PM PST Mon Feb 4 2019

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


$$

CAZ110-111-050645-
/O.EXP.KEKA.WS.W.0003.000000T0000Z-190205T0600Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
931 PM PST Mon Feb 4 2019

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


$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 2, 3:18 AM PSTSmall Craft AdvisoryEKA29 hr
Feb 2, 8:43 AM PSTHazardous Seas WarningEKA6 hr
Feb 2, 8:51 AM PSTCoastal Flood AdvisoryEKAHumboldt2 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.