Alert archive / California / Winter Storm Warnings in 2017

Winter Storm Warning 6, NWS Eureka, CA

March 3, 20174 counties in California

NWS Eureka, CA issued this winter storm warning at Mar 3, 2017, 4:17 PM PST for 4 counties in California. It was in force for 72 hr. 37 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
Mar 3, 2017, 4:17 PM PST (00:17 UTC)
Expired
Mar 6, 2017, 4:00 PM PST
In force
72 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 00:20 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
Mar 5, 7:00 AM PSTSNOW 23 S Weaverville, CAWEAVERVILLE, 2400FT, 2, STARTED 11PM. STILL SNOWING. REPORT FROM SOCIAL MEDIA.
Mar 5, 7:00 AM PSTSNOW 2.1Douglas City, CAWE FINISHED AT ABOUT 2.1, 1700' IN DOUGLAS CITY. STOPPED AT ABOUT 7 AM. FROM SOCIAL MEDIA. LOCATION ESTIMATED.
Mar 5, 7:26 AM PSTSNOW 11 Sw Orleans, CAORLEANS, NE HUMBOLDT COUNTY, ELEVATION 400 FEET SURROUNDING BY MOUNTAINS REPORTED 1 INCH OF SNOW FALL OVERNIGHT.
Mar 5, 7:30 AM PSTSNOW 2.55 Nne Ettersburg, CADOODY RIDGE NEAR ETTERSBURG AT 1680' ELEV. MAXIMUM SNOW DEPTH WAS 2.5 INCHES BUT SNOW IS MELTING. THIS LOCATION IS ESTIMATED FROM A SOCIAL MEDIA POST.
Mar 5, 7:45 AM PSTSNOW 61 Wnw Dinsmore, CAWEST OF DINSMORE. APPROX. 6 INCHES AT 3200 FEET. .
Mar 5, 8:36 AM PSTHEAVY SNOW 85 Ene Covelo, CA6-8 INCHES AT 3500 FEET EAST OF COVELO. 8:34AM. LOCATION ESTIMATED.
Mar 5, 8:59 AM PSTSNOW 21 Ssw Weaverville, CAON BUCKHORM RIDGE AT 2450 FEET. WHITE FLUFFY SNOW OVERNIGHT...2 INCHES.
Mar 5, 8:59 AM PSTSNOW 62 Wnw Ruth, CAAT 3000 FEET. TEMP 28 DEGREES...SNOWING ALL NIGHT 6 INCHES ON GROUND. ZENIA/KETTENPOM.
Mar 5, 9:00 AM PSTSNOW 14 Nnw Willits, CAAPPROX. 8.5 MILES OUT SHERWOOD ROAD. 9AM, SUNDAY. SNOW. 1 INCH. ELEVATION 2,500 FT. LOCATION ESTIMATED. .
Mar 5, 9:00 AM PSTSNOW 1Lewiston, CAABOUT AN INCH OF SNOW OVERNIGHT IN LEWISTON AT 2010 ' ELEVATION...SNOW FLURRIES OFF AND ON ALL DAY TODAY, ALTERNATING WITH SUNLIGHT...MOST SNOW FROM LAST NIGHT HAS MELTED AWAY. FROM SOCIAL MEDIA, LOCATION APPROXIMATE.
Mar 5, 9:00 AM PSTSNOW 42 Sse Weaverville, CAWEAVERVILLE JUST BEFORE 9 AM, RIGHT IN TOWN (2000'), 4 INCHES OF SNOW. NOW SUN IS PEAKING THROUGH. .
Mar 5, 9:00 AM PSTSNOW 52 W Hayfork, CASNOW FELL IN A 4 HOUR PERIOD. .
Mar 5, 9:46 AM PSTSNOW 37 E Bridgeville, CA2800 FEET NEAR HWY36 BASICALLY BETWEEN BRIDGEVILLE AND DINSMORE...STARTED SNOWING LAST NIGHT ABOUT 9 PM THROUGH THIS MORNING. 3 INCHES ON GROUND...TEMP 31 DEGREES.
Mar 5, 10:10 AM PSTSNOW 12 Wnw Blue Lake, CA800 FEET BETWEEN BLUE LAKE AND GLENDALE ON LIPSCOM HILL RD. 1/2 INCH OF SNOW FALLING AND ON GROUND. TEMP 34 DEGREES.
Mar 5, 10:30 AM PSTSNOW 14 Ese Willits, CASNOW STARTED AT MIDNIGHT AND HAS BEEN OFF AND ON SNOW SINCE THEN. WE ARE AT 2300' EAST OF WILLITS. .
Mar 5, 11:37 AM PSTHEAVY SNOW 128 E Fieldbrook, CAWIREGRASS RIDGE, NORTH OF LORD ELLIS SUMMIT. 2800' FT. 12 OF NEW SNOW SINCE LAST NIGHT AND STILL SNOWING HARD. FROM SOCIAL MEDIA, LOCATION APPROXIMATE.
Mar 5, 1:05 PM PSTSLEET 03 N Westhaven-Moonstone, CAAT PATRICKS POINT NORTH OF TRINIDAD...HVY HAIL/SLEET. TEMP 39. 0.51 INCHES OF RAIN SINCE LAST NIGHT.
Mar 5, 4:45 PM PSTSNOW 125 N Ruth, CAINTERNET SUBMITTED STORM TOTAL SNOWFALL OF 12. LOCATION WAS RUTH LAKE HOWEVER EXACT LOCATION ESTIMATED.
Mar 5, 6:52 PM PSTSNOW 0.31 Nnw Big Bar, CASNOWFALL BEGAN TO STICK AROUND 4PM AT AN ELEVATION OF 1000 FEET.
Mar 5, 8:48 PM PSTSNOW 61 Ene Bridgeville, CAELEVATION OF 2800 FEET. SNOW IS CURRENTLY FALLING WITH 6 TOTAL ON THE GROUND. .
Mar 5, 9:04 PM PSTSNOW 0.53 Ene Westhaven-Moonsto, CAELEVATION 800 FEET. HALF AN INCH OF SNOW HAS FALLEN IN THE LAST 30 MINUTES. .
Mar 5, 9:36 PM PSTSNOW 63 Se Kneeland, CAFACEBOOK POST FROM KNEELAND AT AN ELEVATION OF 2200 FEET HAS 6 ON THE GROUND WITH SNOW STILL FALLING, LOCATION ESTIMATED.
Mar 5, 9:45 PM PSTSNOW 193 Nnw Denny, CAREPORT FROM FACEBOOK OF 19 INCHES AT AN ELEVATION OF 3000 FEET, WITH SNOW STILL FALLING. LOCATION ESTIMATED.
Mar 5, 10:00 PM PSTSNOW 62 Ssw Ruth, CA10AM-10PM SNOWFALL TOTAL OF 6 INCHES AT 3000 FEET ELEVATION. .
Mar 6, 7:45 AM PSTHEAVY SNOW 93 Nw Branscomb, CALINCOLN RIDGE NEAR BRANSCOMB 2500 FEET REPORTED 8' TO 10'. LOCATION VERY VAGUE AND ESTIMATED, REPORT FROM SOCIAL MEDIA.
Mar 6, 8:00 AM PSTSNOW 14 Nw Salyer, CAWILLOW CREEK RECEIVED ABOUT ONE INCH OF SNOW AT 700 FEET ABOVE SEA LEVEL. IT IS STILL SNOWING. REPORT FROM SOCIAL MEDIA.
Mar 6, 8:00 AM PSTSNOW 2.52 Ne Ettersburg, CAAN ADDITIONAL 2.5 INCHES OF SNOW FELL OVERNIGHT ON DOODY RIDGE NEAR ETTERSBURG AT 1680 FEET. REPORT FROM SOCIAL MEDIA AND LOCATION ESTIMATED.
Mar 6, 8:15 AM PSTHEAVY SNOW 104 Ene Potter Valley, CASTORM TOTAL SNOW OF TEN INCHES FELL 4 MILES NE OF POTTER VALLEY AT 2871 ELEVATION. LOCATION ESTIMATED. FROM SOCIAL MEDIA.
Mar 6, 8:20 AM PSTHEAVY SNOW 113 Wsw Dinsmore, CAABOUT 2 MI WEST OF DINSMORE ELEVATION 3200' A STORM TOTAL OF 11 OF SNOW WAS REPORTED. HWY 36 IS PLOWED AND SANDED. LOCATION ESTIMATED, REPORT FROM SOCIAL MEDIA. .
Mar 6, 8:30 AM PSTSNOW 12 N Potter Valley, CAONE INCH OF SNOW FELL OVERNIGHT IN POTTER VALLEY AT 1,200'. REPORT FROM SOCIAL MEDIA, LOCATION ESTIMATED.
Mar 6, 9:00 AM PSTHEAVY SNOW 113 E Blue Lake, CAA STORM TOTAL THROUGH 9 AM OF 11 INCHES OF SNOW FELL ON SNOW CAMP RD. 2600'. REPORT FROM SOCIAL MEDIA, LOCATION ESTIMATED.
Mar 6, 9:45 AM PSTHEAVY SNOW 11Ruth, CACURRENTLY 11 INCHES OF SNOW ON THE GROUND IN RUTH AND STILL SNOWING. LOCATION ESTIMATED, REPORT FROM SOCIAL MEDIA.
Mar 6, 10:20 AM PSTSNOW 411 Ssw Carrville, CALOCATED AT 2500 FEET IN COVINGTON MILL. TOTAL SNOW 4-5 INCHES. WAS 1 INCH AT 5 AM...BY 1000 AM MEASURED 5 INCHES.
Mar 6, 10:30 AM PSTHEAVY SNOW 273 Nnw Denny, CAA STORM TOTAL THROUGH 10:30 AM OF 27 INCHES FELL AT 3000 FEET 3 MILES NORTH NORTHWEST OF DENNY, CA.
Mar 6, 11:00 AM PSTHEAVY SNOW 153 S Gasquet, CAA STORM TOTAL OF 15INCHES IN THE DEL NORTE MOUNTAINS AT 1850 OF ELEVATION. LOCATION ONLY DESCRIBED AS DEL NORTE MOUNTAINS, FROM SOCIAL MEDIA. .
Mar 6, 11:00 AM PSTHEAVY SNOW 154 E Ft Dick, CAA STORM TOTAL OF 15 INCHES IN THE DEL NORTE MOUNTAINS OF DEL NORTE COUNTY AT 1850 OF ELEVATION. FROM SOCIAL MEDIA. REPLACES LSR SENT EARLY WITH BETTER LOCATION DATA. STILL APPROXIMATE.
Mar 6, 11:30 AM PSTHEAVY SNOW 63 E Branscomb, CAA STORM TOTAL OF 6 INCHES AT 2500 FEET. BRANSCOMB ROAD IS CLEAR, BUT SLUSHY. .

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 00:00Z, 0.3 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 00:00Z on 2017-03-04Temperature 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 00:00Z on 2017-03-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 137 square meters per square second.19395878Sfc1 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
867 m above ground
0-6 km bulk shear
54 kt
0-1 km storm-relative helicity
137 m²/s²
0-3 km storm-relative helicity
414 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

747 
WWUS46 KEKA 040017
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
417 PM PST Fri Mar 3 2017

CAZ102-104>108-040830-
/O.UPG.KEKA.WS.A.0007.170305T0000Z-170306T1800Z/
/O.NEW.KEKA.WS.W.0006.170304T0017Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
417 PM PST Fri Mar 3 2017

...WINTER STORM WARNING IN EFFECT UNTIL 10 AM PST MONDAY ABOVE
2000 FEET...

The National Weather Service in Eureka has issued a Winter Storm
Warning for MODERATE TO HEAVY SNOW ACCUMULATIONS which is in 
effect until 10 AM PST Monday. The Winter Storm Watch is no longer
in effect. 

SNOW ACCUMULATIONS...Between 2000 and 4000 ft...5 to 10
inches.   Above 4000 ft...10 to 15 inches of accumulation.

LOCATIONS IMPACTED...Weaverville...Burnt Ranch...Trinity 
Center...Hayfork...Ruth.

HIGHWAYS IMPACTED...Elevated Portions and Passes of Hwy 199...Hwy
299...HWY 96...HWY 36...Hwy 3.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a strong liklihood of  
significant snow accumulations,sleet,or ice accumulations that 
will impact travel. Continue to monitor the latest forecasts.

&&

$$

CAZ110-111-040830-
/O.UPG.KEKA.WS.A.0007.170305T0000Z-170306T1800Z/
/O.NEW.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
417 PM PST Fri Mar 3 2017

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM SUNDAY TO 4 AM PST
MONDAY FOR 2 TO 4 INCHES OF SNOW ABOVE 1000 FEET...

The National Weather Service in Eureka has issued a Winter
Weather Advisory for light to moderate snow accumulations which 
is in effect from 4 AM Sunday to 4 AM PST Monday. 

SNOW ACCUMULATIONS...Above 1000 feet...2 to 4 inches of snow 
accumulation.

LOCATIONS IMPACTED...Leggett...Laytonville...Willits...Covelo.

HIGHWAYS IMPACTED...Elevated portions and passes of Hwy 101 and Hwy
162.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
17 follow-up statements
493 
WWUS46 KEKA 040602
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1002 PM PST Fri Mar 3 2017

CAZ102-104>108-041415-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
1002 PM PST Fri Mar 3 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 2000 FEET...

SNOW ACCUMULATIONS...Between 2000 and 4000 ft...5 to 10 inches.  
Above 4000 ft...10 to 15 inches.

LOCATIONS IMPACTED...Weaverville...Burnt Ranch...Trinity Center...
Hayfork...Ruth.

HIGHWAYS IMPACTED...Elevated Portions and Passes of Hwy 199...Hwy
299...HWY 96...HWY 36...Hwy 3.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a strong likelihood of
significant snow accumulations,sleet,or ice accumulations that
will impact travel. Continue to monitor the latest forecasts.

&&

$$

CAZ110-111-041415-
/O.CON.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
1002 PM PST Fri Mar 3 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
4 AM PST MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...Above 1000 feet...2 to 4 inches of snow.

LOCATIONS IMPACTED...Leggett...Laytonville...Willits...Covelo.

HIGHWAYS IMPACTED...Elevated portions and passes of Hwy 101 and
Hwy 162.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
756 
WWUS46 KEKA 041028
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
228 AM PST Sat Mar 4 2017

CAZ102-104>108-042000-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
228 AM PST Sat Mar 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 2000 FEET...

TIMING...Rain and snow will changeover to all snow through the
day. Snow will become moderate to heavy at times from this 
evening through the overnight hours into Sunday. 

SNOW ACCUMULATIONS...Between 2000 and 4000 feet...5 to 10 inches.
Above 4000 feet...10 to 15 inches.

LOCATIONS IMPACTED...Weaverville...Burnt Ranch...Trinity Center...
Hayfork...Ruth.

HIGHWAYS IMPACTED...Elevated Portions and Passes of Hwy 199...Hwy
299...HWY 96...HWY 36...Hwy 3...and US 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a strong likelihood of
significant snow accumulations,sleet,or ice accumulations that
will impact travel. Continue to monitor the latest forecasts.

&&

$$

CAZ110-111-042000-
/O.CON.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
228 AM PST Sat Mar 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
4 AM PST MONDAY ABOVE 1000 FEET...

TIMING...Precipitation will changeover to snow late tonight. Snow
will continue through the day on Sunday into Sunday night. Snow
can be moderate to heavy at times.

SNOW ACCUMULATIONS...Above 1000 feet...2 to 6 inches of snow. 

LOCATIONS IMPACTED...Leggett...Laytonville...Willits...Covelo.

HIGHWAYS IMPACTED...Elevated portions and passes of US 101 and 
Hwy 162.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
952 
WWUS46 KEKA 041959
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1159 AM PST Sat Mar 4 2017

CAZ102-104>108-050400-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
1159 AM PST Sat Mar 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 2000 FEET...

SNOW ACCUMULATIONS...Between 2000 and 4000 feet...5 to 10 inches.
Above 4000 feet...10 to 15 inches.

LOCATIONS IMPACTED...Weaverville...Burnt Ranch...Trinity Center...
Hayfork...Ruth.

HIGHWAYS IMPACTED...Elevated Portions and Passes of Hwy 199...Hwy
299...HWY 96...HWY 36...Hwy 3...and US 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a strong likelihood of
significant snow accumulations,sleet,or ice accumulations that
will impact travel. Continue to monitor the latest forecasts.

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

&&

$$

CAZ110-111-050400-
/O.CON.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
1159 AM PST Sat Mar 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
4 AM PST MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...Above 1000 feet...2 to 6 inches of snow.

LOCATIONS IMPACTED...Leggett...Laytonville...Willits...Covelo.

HIGHWAYS IMPACTED...Elevated portions and passes of US 101 and
Hwy 162.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
869 
WWUS46 KEKA 042330
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
330 PM PST Sat Mar 4 2017

...Cold air filtering into the region will allow snow levels to
continue to rapidly fall through the evening, with significant
snowfall accumulations likely.

CAZ102-104>108-050830-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
330 PM PST Sat Mar 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 2000 FEET...

LOCATIONS IMPACTED...Weaverville...Burnt Ranch...Trinity Center...
Hayfork...Ruth.

HIGHWAYS IMPACTED...Elevated Portions and Passes of Hwy 199...Hwy
299...HWY 96...HWY 36...Hwy 3...and US 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a strong likelihood of
significant snow accumulations,sleet,or ice accumulations that
will impact travel. Continue to monitor the latest forecasts.

&&

$$

CAZ110-111-050830-
/O.CON.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
330 PM PST Sat Mar 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
4 AM PST MONDAY ABOVE 1000 FEET...

LOCATIONS IMPACTED...Leggett...Laytonville...Willits...Covelo.

HIGHWAYS IMPACTED...Elevated portions and passes of US 101 and
Hwy 162.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
393 
WWUS46 KEKA 042340
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
340 PM PST Sat Mar 4 2017

...Cold air filtering into the region will allow snow levels to
continue to rapidly fall through the evening, with significant
snowfall accumulations likely.

CAZ102-104>108-050745-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
340 PM PST Sat Mar 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 2000 FEET...

SNOW ACCUMULATIONS...2 to 6 inches between 1500 and 2000 feet, 7
to 10 inches between 2000 and 5000 feet, and 10 to 16 inches 
above 5000 feet. .

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet......Willow 
Creek...Orleans...Patrolia...Honeydew...Ettersberg... 
Weaverville...Burnt Ranch...Trinity Center...Garberville... 
Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 299...HWY 96...Hwy 
101...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$

CAZ110-111-050745-
/O.CON.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
340 PM PST Sat Mar 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
4 AM PST MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...2 to 5 inches above 1500 feet.

LOCATIONS IMPACTED...Covelo......Leggett...Laytonville...Willits.

HIGHWAYS IMPACTED...Hwy 162...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
307 
WWUS46 KEKA 042346 CCA
WSWEKA

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service Eureka CA
346 PM PST Sat Mar 4 2017

...Cold air filtering into the region will allow snow levels to
continue to rapidly fall through the evening, with significant
snowfall accumulations likely.

CAZ102-104>108-051200-
/O.COR.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
346 PM PST Sat Mar 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 2000 FEET...

SNOW ACCUMULATIONS...2 to 6 inches between 1500 and 2000 feet, 7
to 10 inches between 2000 and 5000 feet, and 10 to 16 inches 
above 5000 feet. 

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet......Willow 
Creek...Orleans...Patrolia...Honeydew...Ettersberg... 
Weaverville...Burnt Ranch...Trinity Center...Garberville... 
Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 299...HWY 96...Hwy 
101...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$

CAZ110-111-051200-
/O.CON.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
346 PM PST Sat Mar 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
4 AM PST MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...2 to 5 inches above 1500 feet.

LOCATIONS IMPACTED...Covelo......Leggett...Laytonville...Willits.

HIGHWAYS IMPACTED...Hwy 162...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
618 
WWUS46 KEKA 050411
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
811 PM PST Sat Mar 4 2017

...Cold air spreading south across the region will allow snow 
levels to fall, with moderate to heavy snow accumulations occurring
as a result.

CAZ102-104>108-051215-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
811 PM PST Sat Mar 4 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 2000 FEET...

SNOW ACCUMULATIONS...2 to 6 inches between 1500 and 2000 feet...7
to 10 inches between 2000 and 5000 feet...and 10 to 16 inches
above 5000 feet.

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet...Willow Creek... 
Orleans...Patrolia...Honeydew...Ettersberg... Weaverville...Burnt 
Ranch...Trinity Center...Garberville... Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 299...HWY 96...Hwy
101...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$

CAZ110-111-051215-
/O.CON.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
811 PM PST Sat Mar 4 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM SUNDAY TO
4 AM PST MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...2 to 5 inches above 1000 feet.

LOCATIONS IMPACTED...Covelo...Leggett...Laytonville...Willits.

HIGHWAYS IMPACTED...Hwy 162...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
034 
WWUS46 KEKA 051050
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
250 AM PST Sun Mar 5 2017

...Cold air spreading south across the region will allow snow
levels to fall, with moderate to heavy snow accumulations
occurring today through early Monday as a result. Snow will be 
periodic and highly variable as showers move through the region, 
with occasional low visibilities due to heavy snow rates, and also
extended breaks in between waves of showers...

CAZ102-104>108-051900-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
250 AM PST Sun Mar 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 2000 FEET...

SNOW ACCUMULATIONS...2 to 6 inches between 1500 and 2000 feet...7
to 10 inches between 2000 and 5000 feet...and 10 to 16 inches 
above 5000 feet. Lighter accumulations likely to as low as 1000
feet. 

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet...Willow Creek...
Orleans...Patrolia...Honeydew...Ettersberg... Weaverville...Burnt
Ranch...Trinity Center...Garberville...Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 299...HWY 96...Hwy
101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit 
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a potential for significant
snow that may impact travel. Continue to monitor the latest 
forecasts.

&&

$$

CAZ110-111-051900-
/O.CON.KEKA.WW.Y.0013.170305T1200Z-170306T1200Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
250 AM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...2 to 5 inches above 1000 feet.

LOCATIONS IMPACTED...Covelo...Leggett...Laytonville...Willits.

HIGHWAYS IMPACTED...Hwy 162...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$
686 
WWUS46 KEKA 051734
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
934 AM PST Sun Mar 5 2017

...Cold air spreading south across the region will allow snow
levels to fall, with moderate to heavy snow accumulations
occurring today through early Monday as a result. Snow will be
periodic and highly variable as showers move through the region,
with occasional low visibilities due to heavy snow rates, and
also extended breaks in between waves of showers...

CAZ110-111-060600-
/O.UPG.KEKA.WW.Y.0013.000000T0000Z-170306T1200Z/
/O.EXA.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
934 AM PST Sun Mar 5 2017

...WINTER STORM WARNING IN EFFECT UNTIL 10 AM PST MONDAY ABOVE
1500 FEET...
...WINTER WEATHER ADVISORY NO LONGER IN EFFECT...

The National Weather Service in Eureka has issued a Winter Storm
Warning for snow...which is in effect until 10 AM PST Monday. The
Winter Weather Advisory is no longer in effect.


SNOW ACCUMULATIONS...2 to 6 inches between 1000 and 1500 feet...7
to 10 inches between 2000 and 5000 feet...and 10 to 16 inches 
above 5000 feet. Lighter accumulations likely to as low as 700 
feet. 

LOCATIONS IMPACTED...Leggett...Laytonville...Willits...Covelo... 
.

HIGHWAYS IMPACTED...Hwy 101...Hwy 162

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$

CAZ102-104>108-060600-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-
934 AM PST Sun Mar 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 1500 FEET...

SNOW ACCUMULATIONS...2 to 6 inches between 1000 and 1500 feet...7
to 12 inches between 2000 and 5000 feet...and 10 to 16 inches 
above 5000 feet. Lighter accumulations likely to as low as 400 
feet.


LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet......Willow 
Creek...Orleans...Patrolia...Honeydew...Ettersberg... 
Weaverville...Burnt Ranch...Trinity Center...Garberville... 
Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 299...HWY 96...Hwy 
101...HWY 3...HWY 36*.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$

CAZ113-060600-
/O.NEW.KEKA.WW.Y.0014.170305T1734Z-170306T1800Z/
Southeastern Mendocino Interior-
934 AM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST MONDAY ABOVE
1000 FEET...

The National Weather Service in Eureka has issued a Winter
Weather Advisory for snow...which is in effect until 10 AM PST 
Monday. 

SNOW ACCUMULATIONS...2 to 5 inches above 1000 feet.

LOCATIONS IMPACTED...Ukiah...Hopland.

HIGHWAYS IMPACTED...Hwy 101*.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
415 
WWUS46 KEKA 051759
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
959 AM PST Sun Mar 5 2017

...Cold air spreading south across the region will allow snow
levels to fall, with moderate to heavy snow accumulations
occurring today through early Monday as a result. Snow will be
periodic and highly variable as showers move through the region,
with occasional low visibilities due to heavy snow rates, and
also extended breaks in between waves of showers...

CAZ102-104>108-110-111-060200-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
959 AM PST Sun Mar 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 1500 FEET...

SNOW ACCUMULATIONS...2 to 6 inches between 1000 and 1500 feet...7
to 12 inches between 2000 and 5000 feet...and 10 to 16 inches 
above 5000 feet. Lighter accumulations likely to as low as 400 
feet.

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet......Leggett... 
Laytonville...Willits...Covelo......Willow Creek...Orleans... 
Patrolia...Honeydew...Ettersberg...Weaverville...Burnt Ranch... 
Trinity Center...Garberville...Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 101...Hwy 162...Hwy 
299...HWY 96...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$

CAZ112-060200-
/O.EXA.KEKA.WW.Y.0014.000000T0000Z-170306T1800Z/
Southwestern Mendocino Interior-
959 AM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST MONDAY ABOVE
1000 FEET...

The National Weather Service in Eureka has issued a Winter
Weather Advisory for snow...which is in effect until 10 AM PST 
Monday. 

SNOW ACCUMULATIONS...2 to 5 inches above 1000 feet.

LOCATIONS IMPACTED...Boonville...Comptche.

HIGHWAYS IMPACTED...Hwy 128.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$

CAZ113-060200-
/O.CON.KEKA.WW.Y.0014.000000T0000Z-170306T1800Z/
Southeastern Mendocino Interior-
959 AM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...2 to 5 inches above 1000 feet.

LOCATIONS IMPACTED...Ukiah...Hopland.

HIGHWAYS IMPACTED...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
418 
WWUS46 KEKA 052216
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
216 PM PST Sun Mar 5 2017

...Cold air spreading south across the region will support 
moderate to heavy snow accumulations through Monday morning. Snow
will be periodic and highly variable as showers move through the 
region. Low visibilities will be possible due to heavy snowfall
rates, with improved visibility occurring in between waves of 
showers.

CAZ102-104>108-110-111-060630-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
216 PM PST Sun Mar 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 1500 FEET...

SNOW ACCUMULATIONS...Storm total snow accumulations from 2 to 6
inches between 1000 and 1500 feet...7 to 12 inches between 2000
and 5000 feet...and 10 to 16 inches above 5000 feet. Lighter
accumulations are likely as low as 400 feet.

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet...Leggett... 
Laytonville...Willits...Covelo...Willow Creek...Orleans... 
Patrolia...Honeydew...Ettersberg...Weaverville...Burnt Ranch... 
Trinity Center...Garberville...Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 101...Hwy 162...Hwy
299...HWY 96...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$

CAZ112-113-060630-
/O.CON.KEKA.WW.Y.0014.000000T0000Z-170306T1800Z/
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
216 PM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...2 to 5 inches above 1000 feet.

LOCATIONS IMPACTED...Boonville...Comptche...Ukiah...Hopland.

HIGHWAYS IMPACTED...Hwy 128...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
818 
WWUS46 KEKA 060511
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
911 PM PST Sun Mar 5 2017

...Cold air spreading south across the region will support
moderate to heavy snow accumulations through Monday morning. Snow
will be periodic and highly variable as showers move through the
region. Low visibilities will be possible due to heavy snowfall
rates, with improved visibility occurring in between waves of
showers.

CAZ102-104>108-110-111-061315-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
911 PM PST Sun Mar 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 1500 FEET...

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet...Leggett...
Laytonville...Willits...Covelo...Willow Creek...Orleans...
Patrolia...Honeydew...Ettersberg...Weaverville...Burnt Ranch...
Trinity Center...Garberville...Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 101...Hwy 162...Hwy
299...HWY 96...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

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

&&

$$

CAZ103-061200-
/O.EXB.KEKA.WW.Y.0014.000000T0000Z-170306T1200Z/
Northern Humboldt Coast-
911 PM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST MONDAY...

The National Weather Service in Eureka has issued a Winter
Weather Advisory for snow...which is in effect until 4 AM PST 
Monday. 

SNOW ACCUMULATIONS...1 to 3 inches.

LOCATIONS IMPACTED...Blue Lake...McKinleyville.

HIGHWAYS IMPACTED...Elevated portions of Hwy 101 and Hwy 299.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$

CAZ112-113-061315-
/O.CON.KEKA.WW.Y.0014.000000T0000Z-170306T1800Z/
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
911 PM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...2 to 5 inches above 1000 feet.

LOCATIONS IMPACTED...Boonville...Comptche...Ukiah...Hopland.

HIGHWAYS IMPACTED...Hwy 128...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
934 
WWUS46 KEKA 060538
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
938 PM PST Sun Mar 5 2017

...Cold air spreading south across the region will support
moderate to heavy snow accumulations through Monday morning. Snow
will be periodic and highly variable as showers move through the
region. Low visibilities will be possible due to heavy snowfall
rates, with improved visibility occurring in between waves of
showers.

CAZ102-104>108-110-111-061345-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170306T1800Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
938 PM PST Sun Mar 5 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST MONDAY
ABOVE 1500 FEET...

SNOW ACCUMULATIONS...Storm total snow accumulations from 2 to 5
inches between 1000 and 1500 feet...7 to 12 inches between 1500 
and 5000 feet...and 10 to 16 inches above 5000 feet. Lighter 
accumulations are likely as low as 400 feet.

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet...Leggett...
Laytonville...Willits...Covelo...Willow Creek...Orleans...
Patrolia...Honeydew...Ettersberg...Weaverville...Burnt Ranch...
Trinity Center...Garberville...Bridgeville.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 101...Hwy 162...Hwy
299...HWY 96...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

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

&&

$$

CAZ103-061200-
/O.CON.KEKA.WW.Y.0014.000000T0000Z-170306T1200Z/
Northern Humboldt Coast-
938 PM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST
MONDAY...

SNOW ACCUMULATIONS...1 to 3 inches.

LOCATIONS IMPACTED...Blue Lake...McKinleyville.

HIGHWAYS IMPACTED...Higher elevations of Hwy 101 and Hwy 299.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$

CAZ112-113-061345-
/O.CON.KEKA.WW.Y.0014.000000T0000Z-170306T1800Z/
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
938 PM PST Sun Mar 5 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST
MONDAY ABOVE 1000 FEET...

SNOW ACCUMULATIONS...2 to 5 inches above 1000 feet.

LOCATIONS IMPACTED...Boonville...Comptche...Ukiah...Hopland.

HIGHWAYS IMPACTED...Hwy 128...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
869 
WWUS46 KEKA 061043
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
243 AM PST Mon Mar 6 2017

...Waves of showers will continue to move through the area during
the day today, with additional snow accumulations expected at low
elevations and pass levels. Snow levels will gradually rise this 
afternoon, likely reaching near 3000 feet by this evening. Snow 
showers will diminish in coverage and intensity this evening...

CAZ102-104>108-110-111-061845-
/O.EXT.KEKA.WS.W.0006.000000T0000Z-170307T0000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
243 AM PST Mon Mar 6 2017

...WINTER STORM WARNING NOW IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 1500 FEET...

SNOW ACCUMULATIONS...Additional snow accumulations from 1 to 2 
inches between 500 and 1500 feet...3 to 7 inches between 1500 and
5000 feet...and 7 to 12 inches above 5000 feet.  

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet...Leggett...
Laytonville...Willits...Covelo...Willow Creek...Orleans...
Patrolia...Honeydew...Ettersberg...Weaverville...Burnt Ranch...
Trinity Center...Garberville...Bridgeville. 

Highest totals expected in the high elevations of Humboldt and 
Del Norte counties. 

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 101...Hwy 162...Hwy
299...HWY 96...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a potential for significant
snow accumulations that may impact travel. Continue to monitor 
the latest forecasts.

&&

$$

CAZ103-061200-
/O.CON.KEKA.WW.Y.0014.000000T0000Z-170306T1200Z/
Northern Humboldt Coast-
243 AM PST Mon Mar 6 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST EARLY
THIS MORNING...

SNOW ACCUMULATIONS...Up to 1 inch.

LOCATIONS IMPACTED...Elevations above 400 feet. Small hail may
also coat roadways as low as sea level. 

HIGHWAYS IMPACTED...Higher elevations of Hwy 101 and Hwy
299...mostly from 400 feet and up. 

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$

CAZ112-113-061800-
/O.CON.KEKA.WW.Y.0014.000000T0000Z-170306T1800Z/
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
243 AM PST Mon Mar 6 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING ABOVE 1000 FEET...

SNOW ACCUMULATIONS...Additional accumulations of 1 to 3 inches 
above 1000 feet.

LOCATIONS IMPACTED...Boonville...Comptche...Ukiah...Hopland.

HIGHWAYS IMPACTED...Hwy 128...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
953 
WWUS46 KEKA 061204
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
404 AM PST Mon Mar 6 2017

...Waves of showers will continue to move through the area during
the day today, with additional snow accumulations expected at low
elevations and pass levels. Snow levels will gradually rise this
afternoon, likely reaching near 3000 feet by this evening. Snow
showers will diminish in coverage and intensity this evening...

CAZ103-061315-
/O.EXP.KEKA.WW.Y.0014.000000T0000Z-170306T1200Z/
Northern Humboldt Coast-
404 AM PST Mon Mar 6 2017

...WINTER WEATHER ADVISORY HAS EXPIRED...

While bursts of light snow will continue to be possible to as low
as 400 feet through the early morning, temperatures are such that
most of this snow will melt quickly. Thus, the winter weather
advisory for coastal areas of Humboldt county below 1000 feet will
be allowed to expire. Motorists should continue to drive with
caution, as occasional light snow and small hail may briefly
create slippery roads. Inland areas will likely see additional
accumulations through the day. 

$$

CAZ102-104>108-110-111-062015-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170307T0000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
404 AM PST Mon Mar 6 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 1500 FEET...

Additional snow accumulations from 1 to 2 inches between 500 and 
1500 feet...3 to 7 inches between 1500 and 5000 feet...and 7 to 12
inches above 5000 feet. 

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet...Leggett...
Laytonville...Willits...Covelo...Willow Creek...Orleans...
Patrolia...Honeydew...Ettersberg...Weaverville...Burnt Ranch...
Trinity Center...Garberville...Bridgeville.

Highest totals expected in the high elevations of Humboldt and
Del Norte counties.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 101...Hwy 162...Hwy
299...HWY 96...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts.

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

&&

$$

CAZ112-113-061800-
/O.CON.KEKA.WW.Y.0014.000000T0000Z-170306T1800Z/
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
404 AM PST Mon Mar 6 2017

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING ABOVE 1000 FEET...

SNOW ACCUMULATIONS...Additional accumulations of 1 to 3 inches 
above 1000 feet.

LOCATIONS IMPACTED...Boonville...Comptche...Ukiah...Hopland.

HIGHWAYS IMPACTED...Hwy 128...Hwy 101.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

A Winter Weather Advisory means that periods of snow,sleet,or
freezing rain will cause travel difficulties. Be prepared for
slippery roads and limited visibilities,and use caution while
driving.

&&

$$
195 
WWUS46 KEKA 061801
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1001 AM PST Mon Mar 6 2017

...Snow will taper off this afternoon...
Waves of showers will continue to move through the area during 
the day today, with additional snow accumulations expected at low 
elevations and pass levels. Snow levels will gradually rise this 
afternoon, likely reaching near 3000 feet by this evening. Snow 
showers will diminish in coverage and intensity this evening.

CAZ112-113-061915-
/O.EXP.KEKA.WW.Y.0014.000000T0000Z-170306T1800Z/
Southwestern Mendocino Interior-Southeastern Mendocino Interior-
1001 AM PST Mon Mar 6 2017

...WINTER WEATHER ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING
ABOVE 1000 FEET...

Snow showers will diminish this afternoon and snow levels will
rise through the afternoon.

$$

CAZ102-104>108-110-111-070000-
/O.CON.KEKA.WS.W.0006.000000T0000Z-170307T0000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
1001 AM PST Mon Mar 6 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON ABOVE 1500 FEET...

LOCATIONS IMPACTED...Hayfork...Ruth...Gasquet...Leggett...
Laytonville...Willits...Covelo...Willow Creek...Orleans...
Patrolia...Honeydew...Ettersberg...Weaverville...Burnt Ranch...
Trinity Center...Garberville...Bridgeville.

Additional snow accumulations from 1 to 2 inches between 500 and 
1500 feet...3 to 7 inches between 1500 and 5000 feet...and 7 to 12
inches above 5000 feet. 

Highest totals expected in the high elevations of Humboldt and
Del Norte counties.

HIGHWAYS IMPACTED...Hwy 3...Hwy 199...Hwy 101...Hwy 162...Hwy
299...HWY 96...HWY 3...HWY 36.

FOR A DETAILED VIEW OF THE HAZARD AREA...visit
http://www.weather.gov/eureka/hazards

Precautionary/preparedness actions...

A Winter Storm Warning means there is a potential for significant
snow accumulations that may impact travel. Continue to monitor
the latest forecasts.

&&

$$
520 
WWUS46 KEKA 062344
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
344 PM PST Mon Mar 6 2017

CAZ102-104>108-110-111-070045-
/O.EXP.KEKA.WS.W.0006.000000T0000Z-170307T0000Z/
Del Norte Interior-Southwestern Humboldt-
Northern Humboldt Interior-Southern Humboldt Interior-
Northern Trinity-Southern Trinity-Northwestern Mendocino Interior-
Northeastern Mendocino Interior-
344 PM PST Mon Mar 6 2017

...WINTER STORM WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON
ABOVE 1500 FEET...

A few snow showers may perist above 2000 feet, but these will
diminish and snow levels will rise this evening.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 3, 4:17 PM PSTWinter Weather AdvisoryEKAMendocino41 hr
Mar 3, 8:15 PM PSTSmall Craft AdvisoryEKA72 hr

Nearby

Winter Storm Warnings in California, 2017Every winter storm warning in 2017

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.