Alert archive / California / Winter Storm Warnings in 2019

Winter Storm Warning 6, NWS Eureka, CA

February 13, 20194 counties in California

NWS Eureka, CA issued this winter storm warning at Feb 13, 2019, 3:00 PM PST for 4 counties in California. It took effect at Feb 14, 2019, 4:00 PM PST. It was in force for 45 hr. 24 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 13, 2019, 3:00 PM PST (23:00 UTC)
In effect from
Feb 14, 2019, 4:00 PM PST
Expired
Feb 16, 2019, 1:00 PM PST
In force
45 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 23:01 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 14, 5:20 PM PSTSNOW 9.79 Nw Dos Rios, CASNOWFALL ACCUMULATION FOR STRING OF SYSTEMS FROM 2/6/19 THROUGH 2/14/19. STATION ELEVATION: 3805 FT.
Feb 15, 7:00 AM PSTSNOW 17 W Calpella, CANEW SNOW ACCUMULATION. TOTAL DEPTH NOW 2 INCHES. STATION ELEVATION: 2492 FT.
Feb 15, 7:00 AM PSTSNOW 5.53 Nne Ruth, CANEW SNOW ACCUMULATION OVERNIGHT. STATION ELEVATION: 2762 FT.
Feb 15, 7:27 AM PSTSNOW 11 N Big Bar, CAONE INCH OF SNOW AT 1,200 FEET ON THE RIVER.
Feb 15, 8:00 AM PSTSNOW 62 Wnw Ruth, CASNOW TOTAL FROM 5PM THROUGH 8AM.
Feb 15, 8:15 AM PSTSNOW 67 E Bridgville, CAAT 2700 FEET BETWEEN BRIDGEVILLE AND DINSMORE. TEMP 34. BEEN SNOWING QUITE A BIT OVERNIGHT.
Feb 15, 8:30 AM PSTSNOW 34 E Potter Valley, CA2871 FEET. LOCATION APPROXIMATE, FROM SOCIAL MEDIA.
Feb 15, 9:00 AM PSTSNOW 16 Wnw Blocksburg, CA2100 FEET TEMP 33 1 1/4 FELL IN THE MORNING.
Feb 15, 9:30 AM PSTSNOW 67 Sse Kneeland, CASNOW STARTED AROUND 12:30 AM. CURRENTLY AROUND 6 INCHES ON THE GROUND AT 2,500 FEET.
Feb 15, 10:13 AM PSTSNOW 04 S Honeydew, CAAT 1500 FEET AND 4S HONEYDEW, OCCASIONAL SNOW AND HAIL. HAD T-STORM SHORTLY AFTER MIDNIGHT.
Feb 15, 1:32 PM PSTSNOW 5.15 Se Dinsmore, CANEW SNOW ACCUMULATION. TOTAL ACCUMULATION NOW 6.2 INCHES. STATION ELEVATION: 2532 FT.
Feb 15, 2:00 PM PSTSNOW 88 Sw Hoopa, CA8 INCHES OF SNOW REPORTED ON BAIR RD. LOCATION AND TIME ESTIMATED.
Feb 16, 6:00 AM PSTSNOW 127 E Bridgville, CA12 HOUR ACCUMULATION OF 12 NEW INCHES OF SNOW ON THE GROUND. TOTAL SNOW DEPTH IS 15 INCHES. ELEVATION 2625 FEET.
Feb 16, 7:00 AM PSTSNOW 5.75 Se Dinsmore, CANEW SNOW ACCUMULATION. TOTAL DEPTH NOW 10.0 INCHES. STATION ELEVATION: 2532 FT.
Feb 16, 7:00 AM PSTSNOW 63 Nne Ruth, CANEW SNOW ACCUMULATION. STATION ELEVATION: 2762 FT.
Feb 16, 7:14 AM PSTSNOW 123 Wsw Willow Creek, CALOCATION ESTIMATED. REPORT OF 1 FOOT OF NEW SNOW NEAR HORSE MOUNTAIN ON TITLOW HILL ROAD. ELEVATION APPROXIMATELY 4700 FEET.
Feb 16, 8:00 AM PSTSNOW 210 N Laytonville, CANEW SNOW ACCUMULATION. STATION ELEVATION: 2078 FT.
Feb 16, 8:00 AM PSTSNOW 102 Wnw Ruth, CANEW SNOW. ELEVATION 3100 FEET.
Feb 16, 8:00 AM PSTSNOW 102 Wnw Ruth, CANEW SNOW. ELEVATION 3100 FEET.
Feb 16, 9:29 AM PSTSNOW 21 Nne Carrville, CASNOW ACCUMULATION OVERNIGHT. ELEVATION: 2600 FT.
Feb 16, 9:48 AM PSTSNOW 2.57 E Benbow, CAHEAVY, WET SNOW ACCUMULATION. ELEVATION 2600 FT.
Feb 16, 9:51 AM PSTSNOW 13.52.5 W Dinsmore, CATOTAL SNOW ACCUMULATION. 10 INCHES NEW SNOWFALL OVERNIGHT. NORTH FACE OF BUCK MTN. ELEVATION: 2540 FT.
Feb 16, 12:00 PM PSTSNOW 51 Sw Denny, CASOCIAL MEDIA REPORT, LOCATION ESTIMATED. SNOW FELL FOR APPROXIMATELY 15 HOURS. ELEVATION 1500 FEET.
Feb 16, 12:53 PM PSTSNOW 241 Sw Ruth, CASOCIAL MEDIA REPORT , LOCATION ESTIMATED. OVER TWO FEET OF SNOW ON THE GROUND AND SNOW IS STILL FALLING.

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, 11.0 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 2019-02-13Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2019-02-13The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 264 square meters per square second.1939587897117136Sfc1 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
479 m above ground
0-6 km bulk shear
62 kt
0-1 km storm-relative helicity
264 m²/s²
0-3 km storm-relative helicity
657 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

396 
WWUS46 KEKA 132300
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
300 PM PST Wed Feb 13 2019

CAZ102-105>108-140930-
/O.NEW.KEKA.WS.W.0006.190215T0600Z-190215T1800Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
300 PM PST Wed Feb 13 2019

...WINTER STORM WARNING IN EFFECT FROM 10 PM THURSDAY TO 10 AM
PST FRIDAY ABOVE 2500 FEET...

* WHAT...Heavy snow expected. Plan on difficult travel conditions.
  Total snow accumulations of 5 to 9 inches, with localized
  amounts up to 16 inches above 2500 feet are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Trinity
  County. Highways impacted include 299...36...3.

* WHEN...10 PM Thursday to 10 AM Friday.

* 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

&&

$$
14 follow-up statements
203 
WWUS46 KEKA 140048
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
448 PM PST Wed Feb 13 2019


CAZ111-140900-
/O.EXB.KEKA.WS.W.0006.190215T0000Z-190216T0600Z/
Northeastern Mendocino Interior-
448 PM PST Wed Feb 13 2019

...WINTER STORM WARNING IN EFFECT FROM 4 PM THURSDAY TO 10 PM PST
FRIDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions,
  including during the evening commute on Thursday. Total snow
  accumulations of 7 to 14 inches, with localized amounts up to 24
  inches, are expected for elevations above 2500 feet.

* WHERE...Northeastern Mendocino County Interior. Mainly impacting
  rural roads.

* WHEN...4 PM Thursday to 10 PM Friday.

* 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

&&

$$

CAZ102-105>108-140900-
/O.EXT.KEKA.WS.W.0006.190215T0000Z-190216T0600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
448 PM PST Wed Feb 13 2019

...WINTER STORM WARNING NOW IN EFFECT FROM 4 PM THURSDAY TO 10 PM
PST FRIDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions,
  including during the evening commute on Thursday. Total snow
  accumulations of 7 to 14 inches, with localized amounts in
  excess of 24 inches, are expected for elevations above 2500 
  feet.

* WHERE...Del Norte Interior, Interior Humboldt County, Trinity
  County. Highways impacted include 299, 199, 36, and 3.

* WHEN...4 PM Thursday to 10 PM Friday.

* 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

&&

$$
241 
WWUS46 KEKA 140548
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
948 PM PST Wed Feb 13 2019


CAZ102-105>108-111-141400-
/O.CON.KEKA.WS.W.0006.190215T0000Z-190216T0600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
948 PM PST Wed Feb 13 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THURSDAY TO
10 PM PST FRIDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions,
  including during the evening commute on Thursday. Total snow
  accumulations of 7 to 14 inches, with localized amounts up to 24
  inches, are expected for elevations above 2500 feet.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 199, 36, 3, and many
  adjacent mountain roads.

* WHEN...4 PM Thursday to 10 PM Friday.

* 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

&&

$$
532 
WWUS46 KEKA 141233
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
433 AM PST Thu Feb 14 2019

CAZ102-105>108-111-142045-
/O.CON.KEKA.WS.W.0006.190215T0000Z-190216T0600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
433 AM PST Thu Feb 14 2019

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

* WHAT...Heavy snow expected. Plan on difficult travel 
  conditions, including during the evening commute. Total snow 
  accumulations of 7 to 14 inches, with localized amounts up to 
  24 inches, are expected for elevations above 2,500 feet.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 199, 36, 3, and many
  adjacent mountain roads.

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

* 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

&&

$$
474 
WWUS46 KEKA 141409
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
609 AM PST Thu Feb 14 2019

CAZ102-105>108-111-142215-
/O.CON.KEKA.WS.W.0006.190215T0000Z-190216T0600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
609 AM PST Thu Feb 14 2019

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 10 PM PST FRIDAY...

* WHAT...Heavy snow expected. Plan on difficult travel conditions,
  including during the evening commute. Total snow accumulations
  of 7 to 11 inches, with localized amounts up to 24 inches, are 
  expected above 2,500 feet.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 36, 3, and other 
  adjacent mountain roads..

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

* 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

&&

$$
452 
WWUS46 KEKA 142227
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
227 PM PST Thu Feb 14 2019

CAZ102-105>108-111-150630-
/O.EXT.KEKA.WS.W.0006.190215T0000Z-190216T1800Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
227 PM PST Thu Feb 14 2019

...WINTER STORM WARNING NOW IN EFFECT UNTIL 10 AM PST SATURDAY...

* WHAT...Heavy snow expected. Travel will be very difficult to
  impossible. Total snow accumulations of 8 to 14 inches, with
  localized amounts above 24 inches, are expected for elevations
  above 2,500.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 36, 3, and other 
  adjacent mountain roads...

* WHEN...4 PM today to 10 AM 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 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

&&

$$
029 
WWUS46 KEKA 150418
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
818 PM PST Thu Feb 14 2019


CAZ102-105>108-111-151230-
/O.CON.KEKA.WS.W.0006.000000T0000Z-190216T1800Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
818 PM PST Thu Feb 14 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SATURDAY...

* WHAT...Heavy snow occurring. Travel will be very difficult to
  impossible. Additional snow accumulations of 10 to 20 inches,
  with localized amounts in excess of 24 inches, are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 36, 3, and other 
  adjacent mountain roads.

* WHEN...Until 10 AM 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 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

&&

$$
307 
WWUS46 KEKA 150425
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
825 PM PST Thu Feb 14 2019


CAZ102-105>108-111-151230-
/O.CON.KEKA.WS.W.0006.000000T0000Z-190216T1800Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
825 PM PST Thu Feb 14 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SATURDAY...

* WHAT...Heavy snow occurring for elevations above 2500 feet. 
  Travel will be very difficult to impossible. Additional snow 
  accumulations of 10 to 20 inches, with localized amounts in 
  excess of 24 inches, are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 199, 36, 3, and other 
  adjacent mountain roads.

* WHEN...Until 10 AM 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 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

&&

$$
639 
WWUS46 KEKA 151209
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
409 AM PST Fri Feb 15 2019

CAZ102-105>108-111-160000-
/O.CON.KEKA.WS.W.0006.000000T0000Z-190216T1800Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
409 AM PST Fri Feb 15 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SATURDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the evening commute. Additional
  snow accumulations of 10 to 15 inches, with localized amounts in
  excess of 24 inches.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 199, 36, 3, and other 
  adjacent mountain roads.

* WHEN...Until 10 AM 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 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

&&

$$
682 
WWUS46 KEKA 151550
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
750 AM PST Fri Feb 15 2019

CAZ102-105>108-111-160000-
/O.CON.KEKA.WS.W.0006.000000T0000Z-190216T1800Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
750 AM PST Fri Feb 15 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 AM PST
SATURDAY...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the evening commute. Additional
  snow accumulations of 10 to 15 inches, with localized amounts in
  excess of 24 inches, are expected for locations above 2,500
  feet. Lesser amounts of snow will be possible for lower
  elevations.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern 
  Trinity, Southern Trinity and Northeastern Mendocino Interior 
  County. Highways impacted include 299, 199, 36, 3, and other 
  adjacent mountain roads.

* WHEN...Until 10 AM 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 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

&&

$$
289 
WWUS46 KEKA 152300
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
300 PM PST Fri Feb 15 2019

CAZ102-105>108-111-160700-
/O.EXT.KEKA.WS.W.0006.000000T0000Z-190216T2100Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
300 PM PST Fri Feb 15 2019

...WINTER STORM WARNING NOW IN EFFECT UNTIL 1 PM PST SATURDAY
ABOVE 2500 FEET...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the evening commute. Additional
  snow accumulations of 7 to 11 inches, with localized amounts in
  excess of 18 inches, are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 199, 36, 3, and other
  adjacent mountain roads. 


* WHEN...Until 1 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 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

&&

$$

CAZ110-160700-
/O.NEW.KEKA.WW.Y.0005.190215T2300Z-190216T2100Z/
Northwestern Mendocino Interior-
300 PM PST Fri Feb 15 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 1 PM PST SATURDAY
ABOVE 3000 FEET...

* WHAT...Wet snow expected. Plan on slippery road conditions.
  Total wet snow accumulations of 2 to 5 inches. 

* WHERE...Northwestern Mendocino County Interior.  

* WHEN...3 PM today to 1 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 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

&&

$$
325 
WWUS46 KEKA 160403
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
803 PM PST Fri Feb 15 2019


CAZ102-105>108-111-161215-
/O.CON.KEKA.WS.W.0006.000000T0000Z-190216T2100Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
803 PM PST Fri Feb 15 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM PST SATURDAY
ABOVE 2500 FEET...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions, including during the evening commute. Additional
  snow accumulations of 5 to 10 inches, with localized amounts in
  excess of 12 inches, are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 199, 36, 3, and other
  adjacent mountain roads.

* WHEN...Until 1 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 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

&&

$$

CAZ110-161215-
/O.CON.KEKA.WW.Y.0005.000000T0000Z-190216T2100Z/
Northwestern Mendocino Interior-
803 PM PST Fri Feb 15 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST
SATURDAY ABOVE 3000 FEET...

* WHAT...Wet snow occurring. Plan on slippery road conditions. 
  Additional wet snow accumulations of 2 to 5 inches are 
  expected.

* WHERE...Northwestern Mendocino County Interior. Highways
  impacted include 101 and other adjacent mountain roads.

* WHEN...Until 1 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 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

&&

$$
361 
WWUS46 KEKA 161157
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
357 AM PST Sat Feb 16 2019


CAZ102-105>108-111-162100-
/O.CON.KEKA.WS.W.0006.000000T0000Z-190216T2100Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
357 AM PST Sat Feb 16 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON ABOVE 2500 FEET...

* WHAT...Heavy snow occurring. Plan on difficult travel 
  conditions. Additional snow accumulations of 3 to 6 inches, 
  with localized amounts up to 9 inches, are expected.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include 299, 199, 36, 3, and other
  adjacent mountain roads.

* WHEN...Until 1 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

&&

$$

CAZ110-162100-
/O.CON.KEKA.WW.Y.0005.000000T0000Z-190216T2100Z/
Northwestern Mendocino Interior-
357 AM PST Sat Feb 16 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON ABOVE 3000 FEET...

* WHAT...Wet snow occurring. Plan on slippery road conditions. 
  Additional wet snow accumulations of 1 to 3 inches are 
  expected.

* WHERE...Northwestern Mendocino County Interior. Highways
  impacted include 101 and other adjacent mountain roads.

* WHEN...Until 1 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 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

&&

$$
619 
WWUS46 KEKA 161552
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
752 AM PST Sat Feb 16 2019

CAZ102-105>108-111-162100-
/O.CON.KEKA.WS.W.0006.000000T0000Z-190216T2100Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Northern Trinity-Southern Trinity-
Northeastern Mendocino Interior-
752 AM PST Sat Feb 16 2019

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON ABOVE 2500 FEET...

* WHAT...Heavy snow occurring. Plan on difficult travel
  conditions. Additional snow accumulations of 2 to 5 inches are
  expected above 2500 feet. Lighter accumulations are expected all
  the way to valley floors in most interior areas.

* WHERE...Del Norte Interior, Interior Humboldt County, Northern
  Trinity, Southern Trinity and Northeastern Mendocino Interior
  County. Highways impacted include Highways impacted include 299,
  199, 36, 3, and other adjacent mountain roads.

* WHEN...Until 1 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

&&

$$

CAZ110-162100-
/O.CON.KEKA.WW.Y.0005.000000T0000Z-190216T2100Z/
Northwestern Mendocino Interior-
752 AM PST Sat Feb 16 2019

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON ABOVE 3000 FEET...

* WHAT...Wet snow occurring. Plan on slippery road conditions. 
  Additional wet snow accumulations of 1 to 3 inches are 
  expected.

* WHERE...Northwestern Mendocino County Interior. Highways 
  impacted include 101 and other adjacent mountain roads.

* WHEN...Until 1 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 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

&&

$$
307 
WWUS46 KEKA 162053
WSWEKA

URGENT - WINTER WEATHER MESSAGE
National Weather Service Eureka CA
1253 PM PST Sat Feb 16 2019

CAZ102-105-106-108-170500-
/O.EXP.KEKA.WS.W.0006.000000T0000Z-190216T2100Z/
/O.EXB.KEKA.WW.Y.0005.190216T2100Z-190217T1600Z/
Del Norte Interior-Northern Humboldt Interior-
Southern Humboldt Interior-Southern Trinity-
1253 PM PST Sat Feb 16 2019

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 8 AM PST SUNDAY ABOVE
1500 FEET...
...WINTER STORM WARNING WILL EXPIRE AT 1 PM PST THIS AFTERNOON
ABOVE 2500 FEET...

* WHAT...Light to moderate snow will continue. Plan on slippery 
  road conditions. Total additional snow accumulations of 2 to 4 
  inches above 1500 feet, with localized amounts up to 8 inches 
  along higher peaks, are expected. Lighter accumulations are 
  possible all the way to valley floors in interior areas.

* WHERE...Del Norte Interior, Interior Humboldt County and
  Southern Trinity County above 1500 feet. Highways impacted 
  include 199, 299, and 36.

* WHEN...1 PM today to 8 AM Sunday. A resurgence in snow rates is
  most likely during the evening and early overnight hours 
  tonight.

* 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

&&

$$

CAZ107-111-162200-
/O.EXP.KEKA.WS.W.0006.000000T0000Z-190216T2100Z/
Northern Trinity-Northeastern Mendocino Interior-
1253 PM PST Sat Feb 16 2019

...WINTER STORM WARNING WILL EXPIRE AT 1 PM PST THIS AFTERNOON
ABOVE 2500 FEET...

Snow rates have decreased sufficiently to allow the Winter Storm
Warning to expire. However, some very light snow accumulations 
will remain possible through the night, particularly at summit 
levels, and icy patches may develop on road surfaces. Please 
continue to exercise caution while driving in these areas, 
particularly overnight. 

$$

CAZ110-162200-
/O.EXP.KEKA.WW.Y.0005.000000T0000Z-190216T2100Z/
Northwestern Mendocino Interior-
1253 PM PST Sat Feb 16 2019

...WINTER WEATHER ADVISORY WILL EXPIRE AT 1 PM PST THIS AFTERNOON
ABOVE 3000 FEET...

Snow rates have decreased sufficiently to allow the Winter Weather
Advisory to expire. However, some very light snow accumulations 
will remain possible through the night, particularly at summit 
levels, and icy patches may develop on road surfaces. Please 
continue to exercise caution while driving in these areas, 
particularly overnight. 

$$

CAZ104-170500-
/O.NEW.KEKA.WW.Y.0006.190217T0300Z-190217T1600Z/
Southwestern Humboldt-
1253 PM PST Sat Feb 16 2019

...WINTER WEATHER ADVISORY IN EFFECT FROM 7 PM THIS EVENING TO
8 AM PST SUNDAY ABOVE 1500 FEET...

* WHAT...Snow expected. Plan on slippery road conditions. Total
  snow accumulations of 1 to 4 inches are expected above 1500 feet.

* WHERE...Southwestern Humboldt County. Highways impacted include
  Mattole Road...Shelter Cove Road...Wilder Ridge Road...and other
  rural high elevation roadways.

* WHEN...7 PM today to 8 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 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

&&

$$

What forecasters said that day

The local office's own words before this winter storm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS Eureka, CA wrote its last area forecast discussion before this winter storm warning went out at Feb 13, 5:16 AM PST, 9 hours 44 minutes earlier.

Area forecast discussion, Feb 13, 5:16 AM PST, 9 hours 44 minutes before
AREA FORECAST DISCUSSION
National Weather Service Eureka CA
516 AM PST Wed Feb 13 2019

.SYNOPSIS...Intermittent periods of moderate to heavy rain will
occur across the area through Thursday. A colder airmass will
move over the region late on Thursday, which will lower
temperatures and snow levels.

&&

.DISCUSSION...Wet and unsettled weather will continue across the
forecast area through early this weekend. The Blended TPW product
shows a moisture plume associated with the upper-level trough
nosing its way toward the California coast. PWATs around an inch
were observed in the product just offshore, placing the PWAT
anomalies in the two to three standard deviations range above
normal. Needless to say, widespread rain will occur across the
area, with moderate to heavy rain expected, mainly south of Del
Norte county through this morning. Overnight, a Winter Weather
Advisory was issued for the interior northern Humboldt county
zone, this is set to expire later this morning. A Winter Storm
Warning is in effect through this afternoon for the Trinity county
zones from 2,500 to 3,000 feet. Though, things are a bit tricky
with the rising snow levels and forecast soundings continuing to
show a warm nose. Should this occur this morning, sleet or
freezing rain would be possible, though confidence remains low. A
bit of an interlude is expected from this late this morning
through early this afternoon in terms of heavy rain, though light
to moderate rain will likely persist. The Wind Advisory will
expire this afternoon, though some gusty winds will return
Thursday afternoon. A low pressure system and associated frontal
boundary will approach the coast tonight, bringing with it another
round of moderate to heavy rain through Thursday morning. A Flood
Watch is in effect through Thursday afternoon for southern
Humboldt county and all of Mendocino county. Lowest totals are
expected to be in vicinity of the Humboldt Bay area due to
downsloping winds. Highest totals will be along west to southwest
facing ranges in southern Humboldt county and Mendocino county
where orographic enhancements will likely occur given the upslope
winds. Area rivers are forecast to see sharp rises, with some
forecast to reach flood stage. This will continue to be monitored.

A colder airmass will move over the area beginning late on Thursday,
dropping snow levels back down to around 2,500 to 3,000 feet.
Another system is forecast to move through the area late on
Friday and into Saturday, bringing another round of rain, snow,
and gusty winds. Lapse rates are forecast to be steep, which
would favor the development of some isolated thunderstorms from
late Thursday through Friday. Showers producing small hail will
be possible, as well as, impactful snow late on Friday and
Saturday. Snow levels will continue to fall through the weekend,
with snow levels forecast to be around 2,000 feet at the coast and
lower across the interior early on Sunday. High pressure is
forecast to build into region late on Sunday and drier conditions
are expected through Tuesday. Given the cold and dry airmass,
potentially cold overnight temperatures will be possible early
next week.

&&

.AVIATION...Moderate rain continues to impact all local
terminals, resulting in periodic MVFR visibility and ceiling
reductions with brief dips to IFR at UKI. Smaller non-TAF airports
east of South Fork Ridge in Trinity County are seeing much more
degraded conditions, with heavy snow and very low visibilities at
times. Precipitation intensity is expected to reduce from mid
morning until late afternoon/evening, when another round of
moderate to heavy rain will spread into the region. Snow across
interior regions will change to rain by mid to late morning, but
low ceilings and visibilities will remain low at times. Gusty
south winds seem to be remaining aloft at most TAF terminals,
which is likely resulting in LLWS as winds aloft are much
stronger. This will lessen during the day somewhat, but is
expected to return late today and overnight. /BRC

&&

.MARINE...Gale force south winds are generating very steep and
hazardous seas early Wednesday morning, most notably from roughly
the mouth of the Eel River southward. In northern areas along the
Redwood Coast winds have turned offshore and are much weaker than
areas farther south, although seas remain elevated as a result of
fresh swell propagating into the waters from the region of stronger
winds to the southwest. Winds will gradually weaken today and allow
steeper seas to settle. Moderate south winds will then continue
overnight tonight, but a quickly passing storm system will cause
south winds to increase briefly before quickly shifting to the west
or northwest. These westerlies may even reach Gale Force,
particularly Thursday morning across the southern waters. Fresh to
strong westerlies will then persist through the end of the week and
gradually become northerly by the weekend.

Meanwhile, a large northwesterly swell is expected to move through
the waters Friday, likely arriving with a height of 20 to 24 feet at
16 seconds. This will result in very large breaking waves in the
Humboldt Bay Bar, and will also result in increased shoaling and
hazardous surf conditions. This large swell will continue through
Saturday morning before subsiding Saturday afternoon and evening.
/BRC

&&

.HYDROLOGY...Periods of moderate to heavy rain are likely through
Thursday as an atmospheric river interacts with several
disturbances. Small stream, urban, and main stem flooding will be
possible. The Navarro River is forecast to reach flood stage late
this evening, which may cause Highway 128 to flood. The Russian
River at Hopland is expected to reach 17 feet Thursday morning,
which could flood Highway 175. The Eel River at Fernbridge is
expected to reach action stage late tonight through Friday night.
And the Garcia River is forecast to crest near 11 feet Thursday
morning. In addition, small streams may experience flooding,
particularly in Mendocino county. Please reference valid
Flood/Hydro Watch/Warning/Advisory statements for more
information.

&&

.BEACH HAZARDS...A large northwest swell will arrive along area
beaches early Friday, likely resulting in breaking waves of around
23-27 feet or possibly higher. Beaches with good northwest exposure
are most vulnerable to the largest waves, but hazardous beach
conditions are expected to develop in many areas. In addition,
jetties and rocks will be especially hazardous and should be avoided
entirely.

In addition to the likelihood of hazardous surf, highest high tides
will be on the rise late in the week and over the weekend, with
predicted astronomical tides of 7.29 and 7.66 ft MLLW at the
North Spit gauge Friday and Saturday morning, respectively. While
the highest high tides won't peak until Monday and Tuesday and
those numbers aren't particularly alarming on their own, the
combination of a lingering storm surge anomaly and the arriving
large swell may be enough to result in some minor coastal flooding
in some areas. /BRC

&&

.EKA WATCHES/WARNINGS/ADVISORIES...
CA...Flood Watch through Thursday afternoon for CAZ104-106-109>113.

     Wind Advisory until 3 PM PST this afternoon for CAZ103>106-
     109>111-113.

     Winter Storm Warning until 1 PM PST this afternoon for CAZ108.

     Winter Weather Advisory until 10 AM PST this morning for CAZ105.

     Winter Storm Warning until 4 PM PST this afternoon for CAZ107.

NORTHWEST CALIFORNIA COASTAL WATERS...Gale Warning until 9 AM PST
     this morning for PZZ450.

     Gale Warning until 3 PM PST this afternoon for PZZ455-470-475.

&&

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

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

For forecast zone information
see the forecast zone map online:
http://www.weather.gov/eureka/zonemap.png
Hazardous weather outlook, Feb 13, 4:54 AM PST, 10 hours 6 minutes before
Hazardous Weather Outlook
National Weather Service Eureka CA
454 AM PST Wed Feb 13 2019

CAZ112-141300-
Southwestern Mendocino Interior-
454 AM PST Wed Feb 13 2019

...FLOOD WATCH IN EFFECT THROUGH THURSDAY AFTERNOON...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Flood Watch is currently in effect.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A Flood Watch is currently in effect.

An active and wet pattern will bring multiple rounds of
rain, mountain snow, and gusty winds over the next week.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

CAZ102-141300-
Del Norte Interior-
454 AM PST Wed Feb 13 2019

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

An active and wet pattern will bring multiple rounds of rain,
mountain snow, and gusty winds over the next week.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

CAZ104-106-110-111-113-141300-
Southwestern Humboldt-Southern Humboldt Interior-
Northwestern Mendocino Interior-Northeastern Mendocino Interior-
Southeastern Mendocino Interior-
454 AM PST Wed Feb 13 2019

...WIND ADVISORY IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...
...FLOOD WATCH IN EFFECT THROUGH THURSDAY AFTERNOON...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Flood Watch is currently in effect.
A Wind Advisory is currently in effect.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A Flood Watch is currently in effect.

An active and wet pattern will bring multiple rounds of
rain, mountain snow, and gusty winds over the next week.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

CAZ105-141300-
Northern Humboldt Interior-
454 AM PST Wed Feb 13 2019

...WIND ADVISORY IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 10 AM PST THIS MORNING...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Winter Weather Advisory is currently in effect.
A Wind Advisory is currently in effect.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

An active and wet pattern will bring multiple rounds of
rain, mountain snow, and gusty winds over the next week.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

CAZ107-141300-
Northern Trinity-
454 AM PST Wed Feb 13 2019

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

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Winter Storm Warning is currently in effect above 2,500
feet.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

An active and wet pattern will bring multiple rounds of
rain, mountain snow, and gusty winds over the next week.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

CAZ108-141300-
Southern Trinity-
454 AM PST Wed Feb 13 2019

...WINTER STORM WARNING IN EFFECT UNTIL 1 PM PST THIS AFTERNOON ABOVE
3000 FEET...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Winter Storm Warning is currently in effect above 3,000
feet.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

An active and wet pattern will bring multiple rounds of
rain, mountain snow, and gusty winds over the next week.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

CAZ101-141300-
Coastal Del Norte-
454 AM PST Wed Feb 13 2019

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

An active and wet pattern will bring multiple rounds of
rain, mountain snow, and gusty winds over the next week.

A large northwest swell will arrive on area beaches early
on Friday bringing chances for hazardous surf.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

CAZ103-141300-
Northern Humboldt Coast-
454 AM PST Wed Feb 13 2019

...WIND ADVISORY IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Wind Advisory is currently in effect.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

An active and wet pattern will bring multiple rounds of
rain, mountain snow, and gusty winds over the next week.

A large northwest swell will arrive on area beaches early
on Friday bringing chances for hazardous surf.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

CAZ109-141300-
Mendocino Coast-
454 AM PST Wed Feb 13 2019

...WIND ADVISORY IN EFFECT UNTIL 3 PM PST THIS AFTERNOON...
...FLOOD WATCH IN EFFECT THROUGH THURSDAY AFTERNOON...

This hazardous weather outlook is for northwest California.

.DAY ONE...Today and tonight.

A Flood Watch is currently in effect.
A Wind Advisory is currently in effect.

A storm system will yield rain, high mountain snow, and
gusty winds tonight.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

A Flood Watch is currently in effect.

An active and wet pattern will bring multiple rounds of
rain, mountain snow, and gusty winds over the next week.

A large northwest swell will arrive on area beaches early
on Friday bringing chances for hazardous surf.

.SPOTTER INFORMATION STATEMENT...
Spotter activation is not expected at this time.

For further details please refer to NOAA Weather Radio or
weather.gov/eureka.

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 13, 12:16 AM PSTWinter Weather AdvisoryEKAHumboldt8 hr
Feb 13, 9:04 AM PSTSmall Craft AdvisoryEKA6 hr
Feb 13, 9:25 AM PSTRiver Flood WarningEKAMendocino43 hr
Feb 13, 9:25 AM PSTRiver Flood WarningEKAHumboldt43 hr
Feb 13, 10:01 AM PSTRiver Flood AdvisoryEKAMendocino33 hr
Feb 13, 2:47 PM PSTGale WarningEKA24 hr
Feb 13, 2:47 PM PSTSmall Craft AdvisoryEKA17 hr
Feb 13, 2:47 PM PSTSmall Craft AdvisoryEKA36 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.