Alert archive / California / High Surf Warnings in 2019

High Surf Warning 2, NWS Eureka, CA

November 25, 2019Del Norte County, Humboldt County, Mendocino County, California

NWS Eureka, CA issued this high surf warning at Nov 25, 2019, 4:24 AM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Nov 26, 2019, 4:00 PM PST. It was in force for 14 hr. 15 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
Nov 25, 2019, 4:24 AM PST (12:24 UTC)
In effect from
Nov 26, 2019, 4:00 PM PST
Expired
Nov 27, 2019, 6:00 AM PST
In force
14 hr
Issued by
NWS Eureka, CA

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

The radar

The Eureka (Bunker Hill) radar (KBHX), 47 km from the middle of the area, began a volume at 12:26 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
Nov 26, 4:39 PM PSTNON-TSTM WND DMG1 Ne Fort Bragg, CASMALL VEGETATION FIRE DUE TO DOWNED POWER LINE.
Nov 26, 4:44 PM PSTNON-TSTM WND DMG1 N Eureka, CAPOWER OUTAGE AT WFO EUREKA, INCLUDING PORTIONS OF DOWNTOWN EUREKA, CA. SOCIAL MEDIA REPORT OF 60 MPH GUST RECORDED 2 MILES WEST OF WFO EUREKA AT SAME TIME OF POWER OUTAGE.
Nov 26, 5:51 PM PSTNON-TSTM WND DMG1 Ssw Fortuna, CAREPORTED TREE BLOCKING ROADWAY KENMAR ROAD.
Nov 26, 6:43 PM PSTNON-TSTM WND DMGCutten, CALARGE DOWNED TREE BLOCKING HOLLY LN IN CUTTEN.
Nov 26, 6:49 PM PSTNON-TSTM WND DMGDowntown Eureka Ca, CADOWNED POWER LINE DUE TO TREE FALLING AND BLOCKING ROAD.
Nov 26, 7:15 PM PSTNON-TSTM WND DMG2 W Rio Dell, CAREPORT OF TREE BLOCKING LANE ON BLUE SLIDE ROAD NEAR LITTLE SISTER LANE.
Nov 26, 7:15 PM PSTNON-TSTM WND DMG4 Ese Carlotta, CAREPORT OF MULTIPLE LIMBS AND OTHER DEBRIS BLOCKING WB LANE ON HIGHWAY 36.
Nov 26, 7:25 PM PSTNON-TSTM WND DMG2 Ne Orick, CALARGE TREE DOWN BLOCKING NORTH BOUND LANE OF HWY 101.
Nov 26, 7:30 PM PSTNON-TSTM WND DMG7 N Trinidad, CA50 FT TREE BLOCKING HWY 101.
Nov 26, 7:34 PM PSTNON-TSTM WND DMG5 Sse Willits, CAREPORT OF A TREE DOWN BLOCKING BOTH LANES ON BLACK BART DRIVE, 1 MILE FROM 101.
Nov 26, 7:35 PM PSTNON-TSTM WND DMG8 Nnw Willits, CAREPORTS OF A TREE ACROSS THE ROADWAY NEAR SHERWOOD ROAD AND TIMBER ROAD.
Nov 26, 7:39 PM PSTNON-TSTM WND DMG1 Sse Myrtletown, CALARGE DOWNED TREE LIMB COMPLETELY BLOCKING MITCHELL HEIGHTS DR.
Nov 26, 8:25 PM PSTNON-TSTM WND DMG4 Nw Weitchpec, CAREPORTED TREE DOWN ON POWER LINES.
Nov 27, 4:05 AM PSTHAIL 0.251 Nw Humboldt Hill, CASMALL HAIL FELL FOR A COUPLE MINUTES. SOME ACCUMULATION, BUT IT QUICKLY WASHED AWAY.
Nov 27, 4:24 AM PSTHAIL 0.251 N Eureka, CASMALL HAIL FELL FOR 1 TO 2 MINUTES. BRIEF ACCUMULATION ON THE GROUND.

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

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 0.4 hours before the alert went out and 210 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 2019-11-25Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 12:00Z on 2019-11-25The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 155 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
631 m above ground
0-6 km bulk shear
77 kt
0-1 km storm-relative helicity
155 m²/s²
0-3 km storm-relative helicity
227 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

005 
WHUS46 KEKA 251224
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
424 AM PST Mon Nov 25 2019

...Powerful storm to bring large surf Tuesday afternoon and
overnight...

.A strong area of low pressure will bring strong southerly winds
and waves briefly Tuesday afternoon and evening before the winds
veer to the west and northwest. This will bring a brief period of
southerly waves with very large northwest waves coming behind the
low.

CAZ101-103-104-252030-
/O.NEW.KEKA.SU.W.0002.191127T0000Z-191127T1400Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
424 AM PST Mon Nov 25 2019

...HIGH SURF WARNING IN EFFECT FROM 4 PM TUESDAY TO 6 AM PST
WEDNESDAY...

The National Weather Service in Eureka has issued a High Surf
Warning...which is in effect from 4 PM Tuesday to 6 AM PST
Wednesday. 

* WAVES AND SURF...Breaking waves 30 to 35 feet along west and 
  northwest facing beaches.

* TIMING...Late Tuesday afternoon and Tuesday night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. Please contact the U.S. Coast Guard 
  for information regarding harbor and bar closures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$

CAZ109-252030-
/O.NEW.KEKA.SU.W.0002.191127T0400Z-191127T1400Z/
Mendocino Coast-
424 AM PST Mon Nov 25 2019

...HIGH SURF WARNING IN EFFECT FROM 8 PM TUESDAY TO 6 AM PST
WEDNESDAY...

The National Weather Service in Eureka has issued a High Surf
Warning...which is in effect from 8 PM Tuesday to 6 AM PST
Wednesday. 

* WAVES AND SURF...Breaking waves 25 to 30 feet along west and 
  northwest facing beaches.

* TIMING...Tuesday night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. Please contact the U.S. Coast Guard 
  for information regarding harbor and bar closures.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$
7 follow-up statements
089 
WHUS46 KEKA 251830
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
1030 AM PST Mon Nov 25 2019

...Powerful storm to bring large surf Tuesday afternoon and
overnight...

.A strong area of low pressure will bring strong southerly winds
and waves briefly Tuesday afternoon and evening before the winds
veer to the west and northwest. This will bring a brief period of
southerly waves with very large northwest waves coming behind the
low.

CAZ101-103-104-260230-
/O.CON.KEKA.SU.W.0002.191127T0000Z-191127T1400Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
1030 AM PST Mon Nov 25 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 4 PM TUESDAY TO 6 AM
PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 30 to 35 feet along west and 
  northwest facing beaches. 

* TIMING...Late Tuesday afternoon and Tuesday night.

* IMPACTS...Large breaking waves along the coast will lead to
  increased wave run-up on beaches with waves topping and washing
  over large rocks and jetties. These large waves can be erratic
  and unpredictable. Use extra caution near the surf zone as these
  large waves will be capable of sweeping people into the frigid
  and turbulent ocean water. Mariners traversing the bar are urged
  to exercise extreme caution or stay in port until the threat
  subsides. This surf will also likely contribute to localized
  coastal flooding. Please contact the U.S. Coast Guard for 
  information regarding harbor and bar closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far 
back from the surf and do not enter areas flooded by the waves.

&&

$$

CAZ109-260230-
/O.CON.KEKA.SU.W.0002.191127T0400Z-191127T1400Z/
Mendocino Coast-
1030 AM PST Mon Nov 25 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 8 PM TUESDAY TO 6 AM
PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 25 to 30 feet along west and 
  northwest facing beaches. 

* TIMING...Tuesday night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. Please contact the U.S. Coast Guard 
  for information regarding harbor and bar closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$
046 
WHUS46 KEKA 260215
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
615 PM PST Mon Nov 25 2019

...Powerful storm to bring large surf Tuesday afternoon and night...

.A strong area of low pressure will bring strong southerly winds
and waves Tuesday afternoon and evening before the winds veer to 
the west and northwest. Southerly waves will switch to large
northwesterly wave as the low progresses inland.

CAZ101-103-104-261015-
/O.CON.KEKA.SU.W.0002.191127T0000Z-191127T1400Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
615 PM PST Mon Nov 25 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 4 PM TUESDAY TO 6 AM
PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 30 to 35 feet along west and 
  northwest facing beaches. 

* TIMING...Late Tuesday afternoon into the night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$

CAZ109-261015-
/O.CON.KEKA.SU.W.0002.191127T0400Z-191127T1400Z/
Mendocino Coast-
615 PM PST Mon Nov 25 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 8 PM TUESDAY TO 6 AM
PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 25 to 30 feet along west and 
  northwest facing beaches. 

* TIMING...Tuesday evening and night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. Please contact the U.S. Coast Guard 
  for information regarding harbor and bar closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$
585 
WHUS46 KEKA 260632
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
1032 PM PST Mon Nov 25 2019

...Powerful storm to bring large surf Tuesday afternoon and
night...

.A deep area of low pressure will yield strong southerly winds 
and waves Tuesday afternoon and evening before the winds veer to 
the west and northwest during Tuesday evening. Southerly waves 
will switch to large northwesterly waves as the low progresses 
inland.

CAZ101-103-104-261445-
/O.CON.KEKA.SU.W.0002.191127T0000Z-191127T1400Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
1032 PM PST Mon Nov 25 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 4 PM TUESDAY TO 6 AM
PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 30 to 35 feet along west and 
  northwest facing beaches. 

* TIMING...Late Tuesday afternoon into the night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$

CAZ109-261445-
/O.CON.KEKA.SU.W.0002.191127T0400Z-191127T1400Z/
Mendocino Coast-
1032 PM PST Mon Nov 25 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 8 PM TUESDAY TO 6 AM
PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 25 to 30 feet along west and 
  northwest facing beaches. 

* TIMING...Tuesday evening and night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. Please contact the U.S. Coast Guard 
  for information regarding harbor and bar closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$
366 
WHUS46 KEKA 261158
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
358 AM PST Tue Nov 26 2019

...Powerful storm to bring large surf this afternoon and 
overnight...

.A deep area of low pressure will bring strong southerly winds 
and waves this afternoon and evening before the winds veer to the
west and northwest during Tuesday evening. Southerly waves will 
switch to large northwesterly waves as the low progresses inland.

CAZ103-262000-
/O.NEW.KEKA.CF.Y.0012.191127T1700Z-191127T2000Z/
/O.CON.KEKA.SU.W.0002.191127T0000Z-191127T1400Z/
Northern Humboldt Coast-
358 AM PST Tue Nov 26 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 6 AM PST WEDNESDAY...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 AM TO NOON PST
WEDNESDAY...

The National Weather Service in Eureka has issued a Coastal Flood
Advisory...which is in effect from 9 AM to noon PST Wednesday. 

* WAVES AND SURF...Breaking waves 30 to 35 feet along west and 
  northwest facing beaches. 

* TIMING...Late Tuesday afternoon into the night.

* COASTAL FLOODING...High astronomical tides and elevated tides
  will cause minor flooding in low lying areas around Humboldt 
  Bay. Up to one half foot of saltwater inundation above ground 
  level is possible in low lying areas near shorelines and tidal 
  waterways (Between 8.8 and 9.0 feet MLLW at the North Spit tide 
  gauge).

* TIMING...High tide is at 10:46 AM Humboldt Bay North Spit tide 
  gauge. Saltwater inundation will be possible 1 to 2 hours before
  and after high tide.

* IMPACTS...Low lying areas will experience minor flooding
  including, but not limited to, roadways in King Salmon and the 
  Arcata bottoms.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.

&&

$$

CAZ101-104-262000-
/O.CON.KEKA.SU.W.0002.191127T0000Z-191127T1400Z/
Coastal Del Norte-Southwestern Humboldt-
358 AM PST Tue Nov 26 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 6 AM PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 30 to 35 feet along west and 
  northwest facing beaches. 

* TIMING...Late Tuesday afternoon into the night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$

CAZ109-262000-
/O.CON.KEKA.SU.W.0002.191127T0400Z-191127T1400Z/
Mendocino Coast-
358 AM PST Tue Nov 26 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
6 AM PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 25 to 30 feet along west and 
  northwest facing beaches. 

* TIMING...Tuesday evening and night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. Please contact the U.S. Coast Guard 
  for information regarding harbor and bar closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$
172 
WHUS46 KEKA 261944
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
1144 AM PST Tue Nov 26 2019

...Powerful storm to bring large surf this afternoon and
overnight...

.A deep area of low pressure will bring strong southerly winds
and waves this afternoon and evening before the winds veer to the
west and northwest during Tuesday evening. Southerly waves will
switch to large northwesterly waves as the low progresses inland.

CAZ103-270345-
/O.CON.KEKA.SU.W.0002.191127T0000Z-191127T1400Z/
/O.CON.KEKA.CF.Y.0012.191127T1700Z-191127T2000Z/
Northern Humboldt Coast-
1144 AM PST Tue Nov 26 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 6 AM PST WEDNESDAY...
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 9 AM TO NOON PST
WEDNESDAY...

* WAVES AND SURF...Breaking waves 30 to 35 feet along west and 
  northwest facing beaches. 

* TIMING...Late Tuesday afternoon into the night.

* COASTAL FLOODING...High astronomical tides and elevated tides 
  will cause minor flooding in low lying areas around Humboldt 
  Bay. Up to one half foot of saltwater inundation above ground 
  level is possible in low lying areas near shorelines and tidal 
  waterways (Between 8.8 and 9.0 feet MLLW at the North Spit 
  tide gauge). 

* TIMING...High tide is at 10:46 AM on Wednesday at the Humboldt 
  Bay North Spit tide gauge. Saltwater inundation will be possible
  1 to 2 hours before and after high tide. 

* IMPACTS...Low lying areas will experience minor flooding 
  including, but not limited to, roadways in King Salmon and the 
  Arcata bottoms. 

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.

&&

$$

CAZ101-104-270345-
/O.CON.KEKA.SU.W.0002.191127T0000Z-191127T1400Z/
Coastal Del Norte-Southwestern Humboldt-
1144 AM PST Tue Nov 26 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON
TO 6 AM PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 30 to 35 feet along west and 
  northwest facing beaches. 

* TIMING...Late Tuesday afternoon into the night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$

CAZ109-270345-
/O.CON.KEKA.SU.W.0002.191127T0400Z-191127T1400Z/
Mendocino Coast-
1144 AM PST Tue Nov 26 2019

...HIGH SURF WARNING REMAINS IN EFFECT FROM 8 PM THIS EVENING TO
6 AM PST WEDNESDAY...

* WAVES AND SURF...Breaking waves 25 to 35 feet along west and 
  northwest facing beaches. 

* TIMING...Tuesday evening and night.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. Please contact the U.S. Coast Guard 
  for information regarding harbor and bar closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$
674 
WHUS46 KEKA 271143
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
343 AM PST Wed Nov 27 2019

...Powerful storm to bring large surf this afternoon and
overnight...

.A deep area of low pressure will bring strong southerly winds
and waves this afternoon and evening before the winds veer to the
west and northwest during Tuesday evening. Southerly waves will
switch to large northwesterly waves as the low progresses inland.

CAZ103-271945-
/O.CON.KEKA.SU.W.0002.000000T0000Z-191127T1400Z/
/O.CON.KEKA.CF.Y.0012.191127T1700Z-191127T2000Z/
Northern Humboldt Coast-
343 AM PST Wed Nov 27 2019

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS
MORNING...
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 9 AM THIS
MORNING TO NOON PST TODAY...

* WAVES AND SURF...Breaking waves 18 to 25 feet along west and 
  northwest facing beaches slowly diminishing this morning. 

* TIMING...Early this morning.

* COASTAL FLOODING...High astronomical tides and elevated tides 
  will cause minor flooding in low lying areas around Humboldt 
  Bay. Up to one half foot of saltwater inundation above ground 
  level is possible in low lying areas near shorelines and tidal 
  waterways (Between 8.8 and 9.0 feet MLLW at the North Spit 
  tide gauge). 

* TIMING...High tide is at 10:46 AM on Wednesday at the Humboldt 
  Bay North Spit tide gauge. Saltwater inundation will be 
  possible 1 to 2 hours before and after high tide. 

* IMPACTS...Low lying areas will experience minor flooding 
  including, but not limited to, roadways in King Salmon and the 
  Arcata bottoms. 

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.

&&

$$

CAZ101-104-109-271400-
/O.CON.KEKA.SU.W.0002.000000T0000Z-191127T1400Z/
Coastal Del Norte-Southwestern Humboldt-Mendocino Coast-
343 AM PST Wed Nov 27 2019

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS
MORNING...

* WAVES AND SURF...Breaking waves 18 to 25 feet along west and 
  northwest facing beaches. 

* TIMING...Early this morning.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$
771 
WHUS46 KEKA 271331
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
531 AM PST Wed Nov 27 2019

...Large surf will continue to slowly diminish today...

.A large northwest swell continues to bring high surf to the
coast, highest along the Mendocino coast. Surf heights of 21 to 
25 feet will continue through mid to late morning. High tides 
will also allow some coastal flooding around high tide this 
morning in some areas.

CAZ109-272100-
/O.NEW.KEKA.SU.Y.0007.191127T1400Z-191127T2100Z/
/O.EXA.KEKA.CF.Y.0012.191127T1700Z-191127T2000Z/
/O.CON.KEKA.SU.W.0002.000000T0000Z-191127T1400Z/
Mendocino Coast-
531 AM PST Wed Nov 27 2019

...HIGH SURF ADVISORY IN EFFECT UNTIL 1 PM PST THIS AFTERNOON...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 9 AM THIS MORNING TO
NOON PST TODAY...

The National Weather Service in Eureka has issued a High Surf
Advisory...which is in effect until 1 PM PST this afternoon. a
Coastal Flood Advisory has also been issued. This Coastal Flood
Advisory is in effect from 9 AM this morning to noon PST today. 

* COASTAL FLOODING...High astronomical tides and elevated tides
  will cause minor flooding in low lying areas around Humboldt
  Bay. Up to one foot of saltwater inundation above ground level 
  is possible in low lying areas near shorelines and tidal 
  waterways (Between 7.9 and 8.1 feet MLLW at the Arena Cove tide 
  gauge).
 
* TIMING...High tide is at 10:46 AM on Wednesday at the Humboldt 
  Bay North Spit tide gauge. Saltwater inundation will be 
  possible 1 to 2 hours before and after high tide. 

* IMPACTS...Minor coastal flooding is possible around high tide
  this morning which is at 10:32 AM.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Coastal Flood Advisory indicates that onshore winds and tides 
will combine to generate flooding of low areas along the shore.

Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.

A High Surf Advisory means that high surf will affect beaches in
the advisory area, producing rip currents and localized beach
erosion.

&&

$$

CAZ103-272000-
/O.CON.KEKA.SU.W.0002.000000T0000Z-191127T1400Z/
/O.CON.KEKA.CF.Y.0012.191127T1700Z-191127T2000Z/
Northern Humboldt Coast-
531 AM PST Wed Nov 27 2019

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS
MORNING...
...COASTAL FLOOD ADVISORY REMAINS IN EFFECT FROM 9 AM THIS
MORNING TO NOON PST TODAY...

* WAVES AND SURF...Breaking waves 18 to 25 feet along west and 
  northwest facing beaches slowly diminishing this morning. 

* COASTAL FLOODING...High astronomical tides and elevated tides
  will cause minor flooding in low lying areas around Humboldt
  Bay. Up to one half foot of saltwater inundation above ground
  level is possible in low lying areas near shorelines and tidal
  waterways (Between 8.9 and 9.1 feet MLLW at the North Spit tide
  gauge). 

* TIMING...High tide is at 10:46 AM on Wednesday at the Humboldt 
  Bay North Spit tide gauge. Saltwater inundation will be 
  possible 1 to 2 hours before and after high tide. 

* IMPACTS...Low lying areas will experience minor flooding
  including, but not limited to, roadways in King Salmon, Jackson
  Ranch road in the Arcata bottoms, and possibly Jetty road on the
  Samoa Penn.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

A Coastal Flood Advisory indicates that onshore winds and tides
will combine to generate flooding of low areas along the shore.

Feet Above Ground is locally defined as feet above the Highest
Astronomical Tide or HAT.

&&

$$

CAZ101-104-271445-
/O.CON.KEKA.SU.W.0002.000000T0000Z-191127T1400Z/
Coastal Del Norte-Southwestern Humboldt-
531 AM PST Wed Nov 27 2019

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS
MORNING...

* WAVES AND SURF...Breaking waves 18 to 25 feet along west and 
  northwest facing beaches. 

* TIMING...Early this morning.

* IMPACTS...Large breaking waves along the coast will lead to 
  increased wave run-up on beaches with waves topping and 
  washing over large rocks and jetties. These large waves can be 
  erratic and unpredictable. Use extra caution near the surf 
  zone as these large waves will be capable of sweeping people 
  into the frigid and turbulent ocean water. Mariners traversing 
  the bar are urged to exercise extreme caution or stay in port 
  until the threat subsides. This surf will also likely 
  contribute to localized coastal flooding. Please contact the 
  U.S. Coast Guard for information regarding harbor and bar 
  closures. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Warning indicates that dangerous, battering waves
will pound the shoreline resulting in beach erosion. Stay far
back from the surf and do not enter areas flooded by the waves.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 25, 3:00 AM PSTStorm WarningEKA48 hr
Nov 25, 3:51 AM PSTHigh Wind WarningEKADel Norte, Humboldt, Mendocino, Trinity48 hr
Nov 25, 3:51 AM PSTWind AdvisoryEKAMendocino48 hr
Nov 25, 3:58 AM PSTWinter Storm WarningEKADel Norte, Humboldt, Mendocino, Trinity58 hr
Nov 25, 9:03 AM PSTGale WarningEKA42 hr
Nov 25, 9:03 AM PSTSmall Craft AdvisoryEKA28 hr

Nearby

High Surf Warnings in California, 2019Every high surf 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.