Alert archive / California / Beach Hazards Statements in 2019

Beach Hazards Statement 10, NWS Eureka, CA

November 12, 2019Del Norte County, Humboldt County, Mendocino County, California

NWS Eureka, CA issued this beach hazards statement at Nov 12, 2019, 2:25 PM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Nov 14, 2019, 12:00 PM PST. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued
Nov 12, 2019, 2:25 PM PST (22:25 UTC)
In effect from
Nov 14, 2019, 12:00 PM PST
Expired
Nov 15, 2019, 10:00 AM PST
In force
22 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 22:24 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.

The nearest sounding before it

Medford/Jackson, OR (KMFR), launched 12:00Z, 10.4 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 2019-11-12Temperature 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 2019-11-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 50 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
1345 m above ground
0-6 km bulk shear
53 kt
0-1 km storm-relative helicity
50 m²/s²
0-3 km storm-relative helicity
114 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

604 
WHUS46 KEKA 122225
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
225 PM PST Tue Nov 12 2019


CAZ101-103-104-109-130630-
/O.NEW.KEKA.BH.S.0010.191114T2300Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
225 PM PST Tue Nov 12 2019

...BEACH HAZARDS STATEMENT IN EFFECT FROM THURSDAY AFTERNOON
THROUGH FRIDAY MORNING...

The National Weather Service in Eureka has issued a Beach Hazards
Statement...which is in effect from Thursday afternoon through
Friday morning. 

* TIMING...The highest sneaker wave risk will be from Thursday
  afternoon through Friday morning.

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

&&

$$
10 follow-up statements
024 
WHUS46 KEKA 130604
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
1004 PM PST Tue Nov 12 2019

CAZ101-103-104-109-131415-
/O.CON.KEKA.BH.S.0010.191114T2300Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
1004 PM PST Tue Nov 12 2019

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THURSDAY
AFTERNOON THROUGH FRIDAY MORNING...

* TIMING...The highest sneaker wave risk will be from Thursday 
  afternoon through Friday morning. 

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

&&

$$
626 
WHUS46 KEKA 131404
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
604 AM PST Wed Nov 13 2019

CAZ101-103-104-109-132215-
/O.CON.KEKA.BH.S.0010.191114T2300Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
604 AM PST Wed Nov 13 2019

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THURSDAY
AFTERNOON THROUGH FRIDAY MORNING...

* TIMING...The highest sneaker wave risk will be from Thursday 
  afternoon through Friday morning. 

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

$$
104 
WHUS46 KEKA 132109
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
109 PM PST Wed Nov 13 2019

CAZ101-103-104-109-140515-
/O.CON.KEKA.BH.S.0010.191114T2300Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
109 PM PST Wed Nov 13 2019

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THURSDAY
AFTERNOON THROUGH FRIDAY MORNING...

* TIMING...The highest sneaker wave risk will be from Thursday 
  afternoon through Friday morning. 

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

$$
154 
WHUS46 KEKA 140421
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
821 PM PST Wed Nov 13 2019

CAZ101-103-104-109-141230-
/O.CON.KEKA.BH.S.0010.191114T2300Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
821 PM PST Wed Nov 13 2019

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THURSDAY
AFTERNOON THROUGH FRIDAY MORNING...

* TIMING...The highest sneaker wave risk will be from Thursday 
  afternoon through Friday morning. 

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

$$
636 
WHUS46 KEKA 141120
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
320 AM PST Thu Nov 14 2019

CAZ101-103-104-109-141930-
/O.EXT.KEKA.BH.S.0010.191114T2000Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
320 AM PST Thu Nov 14 2019

...BEACH HAZARDS STATEMENT NOW IN EFFECT FROM NOON TODAY THROUGH 
FRIDAY MORNING...

* TIMING...The highest sneaker wave risk will be from this 
  afternoon through Friday morning. 

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

$$
698 
WHUS46 KEKA 141622
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
822 AM PST Thu Nov 14 2019

CAZ101-103-104-109-150030-
/O.CON.KEKA.BH.S.0010.191114T2000Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
822 AM PST Thu Nov 14 2019

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM NOON PST TODAY
THROUGH FRIDAY MORNING...

* TIMING...The highest sneaker wave risk will be from this 
  afternoon through Friday morning. 

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

$$
969 
WHUS46 KEKA 142213
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
213 PM PST Thu Nov 14 2019

CAZ101-103-104-109-150615-
/O.CON.KEKA.BH.S.0010.000000T0000Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
213 PM PST Thu Nov 14 2019

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY
MORNING...

* TIMING...The highest sneaker wave risk will be from this 
  afternoon through Friday morning. 

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

$$
593 
WHUS46 KEKA 150535
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
935 PM PST Thu Nov 14 2019


CAZ101-103-104-109-151345-
/O.CON.KEKA.BH.S.0010.000000T0000Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
935 PM PST Thu Nov 14 2019

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY 
MORNING...

* TIMING...The highest sneaker wave risk will be tonight. 

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

$$
403 
WHUS46 KEKA 151127
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
327 AM PST Fri Nov 15 2019

CAZ101-103-104-109-151800-
/O.CON.KEKA.BH.S.0010.000000T0000Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
327 AM PST Fri Nov 15 2019

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* TIMING...The highest remaining sneaker wave risk will be early 
  Friday morning.

* IMPACTS...Larger surf at offshore breaks and an enhanced risk 
  of sneaker waves on northwest California beaches. Steep 
  beaches will have a higher risk of sneaker wave activity with 
  greater wave run-up onto beaches. Large waves will also wash 
  over jetties and rock outcroppings that may normally stay dry. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Beach Hazard Statement is issued when threats such as sneaker
waves and other hazards create life-threatening conditions in the
surf zone. Caution should be used when in or near the water.

$$
350 
WHUS46 KEKA 151802
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
1002 AM PST Fri Nov 15 2019

CAZ101-103-104-109-151915-
/O.EXP.KEKA.BH.S.0010.000000T0000Z-191115T1800Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
Mendocino Coast-
1002 AM PST Fri Nov 15 2019

...BEACH HAZARDS STATEMENT HAS EXPIRED...

The sneaker wave threat has diminished, although large surf will
continue to impact offshore breaks and northwest California
beaches through Saturday.

$$

Nearby

Beach Hazards Statements in California, 2019Every beach hazards statement 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; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.