Alert archive / California / Beach Hazards Statements in 2017

Beach Hazards Statement 8, NWS Eureka, CA

October 25, 2017Del Norte County, Humboldt County, Mendocino County, California

NWS Eureka, CA issued this beach hazards statement at Oct 25, 2017, 7:41 PM PDT for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Oct 27, 2017, 2:00 PM PDT. It was in force for 46 hr.

The area

The counties it named.

The facts

Issued
Oct 25, 2017, 7:41 PM PDT (02:41 UTC)
In effect from
Oct 27, 2017, 2:00 PM PDT
Expired
Oct 29, 2017, 11:48 AM PDT
In force
46 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 02:38 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 00:00Z, 2.7 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 00:00Z on 2017-10-26Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Medford/Jackson, OR at 00:00Z on 2017-10-26The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 square meters per square second.1939Sfc1 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
2357 m above ground
0-6 km bulk shear
21 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
57 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

341 
WHUS46 KEKA 260241
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
741 PM PDT WED OCT 25 2017

...THREAT FOR SNEAKER WAVES POSSIBLE FRIDAY THROUGH SUNDAY...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL BRING A THREAT FOR 
SNEAKER WAVES. THE HIGHEST THREAT IS FRIDAY AFTERNOON THROUGH
SATURDAY AFTERNOON WITH A SWELL OF 8 TO 11 FT AROUND 20 SECONDS 
MOVING INTO THE WATERS.

CAZ101-103-104-109-261215-
/O.NEW.KEKA.BH.S.0008.171027T2100Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
741 PM PDT WED OCT 25 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM FRIDAY AFTERNOON
THROUGH SUNDAY AFTERNOON...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A BEACH HAZARDS
STATEMENT...WHICH IS IN EFFECT FROM FRIDAY AFTERNOON THROUGH
SUNDAY AFTERNOON. 

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM FRIDAY
  AFTERNOON THROUGH SATURDAY AFTERNOON. HOWEVER, A SLIGHT RISK OF
  SNEAKER WAVES WILL PERSIST THROUGH SUNDAY EVENING. 

* 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
9 follow-up statements
407 
WHUS46 KEKA 261108
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
408 AM PDT THU OCT 26 2017

...THREAT FOR SNEAKER WAVES FRIDAY AFTERNOON THROUGH SUNDAY...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL BRING A THREAT FOR
SNEAKER WAVES. THE FIRST THREAT WILL BE FRIDAY AFTERNOON THROUGH 
EARLY EVENING WHEN THE SWELL BUILDS TO 4 TO 6 FT WITH PERIODS OVER
20 SECONDS. THE THREAT FOR LARGE SURF AND SNEAKER WAVES WILL 
CONTINUE FRIDAY NIGHT AND SATURDAY AS THE SWELL BUILDS TO 9 TO 11 
FT. THE SWELL WILL DIMINISH ON SUNDAY, HOWEVER THE RISK FOR 
SNEAKER WAVES WILL STILL BE PRESENT THROUGH THE DAY. 

CAZ101-103-104-109-262245-
/O.CON.KEKA.BH.S.0008.171027T2100Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
408 AM PDT THU OCT 26 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM FRIDAY
AFTERNOON THROUGH SUNDAY AFTERNOON...

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM FRIDAY 
  AFTERNOON THROUGH SATURDAY AFTERNOON. HOWEVER, A SLIGHT RISK 
  OF SNEAKER WAVES WILL PERSIST THROUGH SUNDAY EVENING. 

* 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
270 
WHUS46 KEKA 262240
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
340 PM PDT THU OCT 26 2017

...THREAT FOR SNEAKER WAVES FRIDAY AFTERNOON THROUGH SUNDAY...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL BRING A THREAT FOR
SNEAKER WAVES. THE FIRST THREAT WILL BE FRIDAY AFTERNOON THROUGH
EARLY EVENING WHEN THE SWELL BUILDS TO 4 TO 6 FT WITH PERIODS
OVER 20 SECONDS. THE THREAT FOR LARGE SURF AND SNEAKER WAVES WILL
CONTINUE FRIDAY NIGHT AND SATURDAY AS THE SWELL BUILDS TO 9 TO
11 FT. THE SWELL WILL DIMINISH ON SUNDAY, HOWEVER THE RISK FOR
SNEAKER WAVES WILL STILL BE PRESENT THROUGH THE DAY.

CAZ101-103-104-109-271145-
/O.CON.KEKA.BH.S.0008.171027T2100Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
340 PM PDT THU OCT 26 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM FRIDAY
AFTERNOON THROUGH SUNDAY AFTERNOON...

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM FRIDAY 
  AFTERNOON THROUGH SATURDAY AFTERNOON. HOWEVER, A SLIGHT RISK 
  OF SNEAKER WAVES WILL PERSIST THROUGH SUNDAY EVENING. 

* 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
318 
WHUS46 KEKA 270956
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
256 AM PDT FRI OCT 27 2017

...THREAT FOR SNEAKER WAVES FRIDAY AFTERNOON THROUGH SUNDAY...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL BRING A THREAT FOR
SNEAKER WAVES. THE FIRST THREAT WILL BE THIS AFTERNOON THROUGH 
EARLY EVENING WHEN THE SWELL BUILDS TO 4 TO 6 FT WITH PERIODS OVER
20 SECONDS. THE THREAT FOR LARGE SURF AND SNEAKER WAVES WILL 
CONTINUE TONIGHT AND SATURDAY AS THE SWELL BUILDS TO 9 TO 11 FT. 
THE SWELL WILL DIMINISH ON SUNDAY, HOWEVER THE RISK FOR SNEAKER 
WAVES WILL STILL BE PRESENT THROUGH THE DAY.

CAZ101-103-104-109-271800-
/O.CON.KEKA.BH.S.0008.171027T2100Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
256 AM PDT FRI OCT 27 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 2 PM PDT THIS
AFTERNOON THROUGH SUNDAY AFTERNOON...

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM THIS 
  AFTERNOON THROUGH SATURDAY AFTERNOON. HOWEVER, A SLIGHT RISK OF 
  SNEAKER WAVES WILL PERSIST THROUGH SUNDAY EVENING. 

* 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
073 
WHUS46 KEKA 271717
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1017 AM PDT FRI OCT 27 2017

...THREAT FOR SNEAKER WAVES FRIDAY AFTERNOON THROUGH SUNDAY...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL BRING A THREAT FOR
SNEAKER WAVES. THE FIRST THREAT WILL BE THIS AFTERNOON THROUGH
EARLY EVENING WHEN THE SWELL BUILDS TO 4 TO 6 FT WITH PERIODS
OVER 20 SECONDS. THE THREAT FOR LARGE SURF AND SNEAKER WAVES WILL
CONTINUE TONIGHT AND SATURDAY AS THE SWELL BUILDS TO 9 TO 11 FT.
THE SWELL WILL DIMINISH ON SUNDAY, HOWEVER THE RISK FOR SNEAKER
WAVES WILL STILL BE PRESENT THROUGH THE DAY.

CAZ101-103-104-109-281200-
/O.CON.KEKA.BH.S.0008.171027T2100Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
1017 AM PDT FRI OCT 27 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 2 PM PDT THIS
AFTERNOON THROUGH SUNDAY AFTERNOON...

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM THIS
  AFTERNOON THROUGH SATURDAY AFTERNOON. A SLIGHT RISK OF SNEAKER 
  WAVES WILL PERSIST THROUGH SUNDAY EVENING. 

* 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
307 
WHUS46 KEKA 281103
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
403 AM PDT SAT OCT 28 2017

...THREAT FOR SNEAKER WAVES THROUGH SUNDAY...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL BRING A THREAT FOR
SNEAKER WAVES. THE THREAT FOR LARGE SURF AND SNEAKER WAVES WILL 
CONTINUE TODAY AS THE SWELL STAYS AT AROUND 9 TO 11 FT. THE SWELL
WILL DIMINISH ON SUNDAY, HOWEVER THE RISK FOR SNEAKER WAVES WILL 
STILL BE PRESENT THROUGH THE DAY.

CAZ101-103-104-109-281915-
/O.CON.KEKA.BH.S.0008.000000T0000Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
403 AM PDT SAT OCT 28 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
AFTERNOON...

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE THROUGH THIS 
  AFTERNOON. A SLIGHT RISK OF SNEAKER WAVES WILL PERSIST THROUGH 
  SUNDAY EVENING. 

* 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
522 
WHUS46 KEKA 281904
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1204 PM PDT SAT OCT 28 2017

...THREAT FOR SNEAKER WAVES THROUGH SUNDAY...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL BRING A THREAT FOR
SNEAKER WAVES. THE THREAT FOR LARGE SURF AND SNEAKER WAVES WILL
CONTINUE TODAY AS THE SWELL STAYS AT AROUND 9 TO 11 FT. THE SWELL
WILL DIMINISH ON SUNDAY, HOWEVER THE RISK FOR SNEAKER WAVES WILL
STILL BE PRESENT THROUGH THE DAY.

CAZ101-103-104-109-290315-
/O.CON.KEKA.BH.S.0008.000000T0000Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
1204 PM PDT SAT OCT 28 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
AFTERNOON...

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE THROUGH THIS 
  AFTERNOON. A SLIGHT RISK OF SNEAKER WAVES WILL PERSIST THROUGH 
  SUNDAY EVENING. 

* 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
484 
WHUS46 KEKA 290356
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
856 PM PDT SAT OCT 28 2017

...THREAT FOR SNEAKER WAVES THROUGH SUNDAY...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL CONTINUE TO BRING A 
THREAT FOR SNEAKER WAVES. THE THREAT FOR LARGE SURF AND SNEAKER 
WAVES WILL CONTINUE TONIGHT AS THE SWELL STAYS AT AROUND 9 TO 11 
FT. THE SWELL WILL DIMINISH ON SUNDAY. HOWEVER...THE RISK FOR 
SNEAKER WAVES WILL STILL BE PRESENT THROUGH THE DAY.

CAZ101-103-104-109-291300-
/O.CON.KEKA.BH.S.0008.000000T0000Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
856 PM PDT SAT OCT 28 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SUNDAY
AFTERNOON...

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL CONTINUE TONIGHT. A
  MODERATE RISK OF SNEAKER WAVES WILL PERSIST THROUGH SUNDAY
  MORNING...WITH A SLIGHT RISK INTO THE EVENING. 

* IMPACTS...LARGE 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
777 
WHUS46 KEKA 291247
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
547 AM PDT SUN OCT 29 2017

...THREAT FOR SNEAKER WAVES THROUGH THIS AFTERNOON...

.A LONG PERIOD WEST-NORTHWEST SWELL WILL CONTINUE TO BRING A
THREAT FOR SNEAKER WAVES THROUGH THIS AFTERNOON. THE
SWELL...CURRENTLY AT AROUND 9 TO 11 FT...WILL GRADUALLY DIMINISH
DURING THE DAY TODAY. 

CAZ101-103-104-109-292100-
/O.CON.KEKA.BH.S.0008.000000T0000Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
547 AM PDT SUN OCT 29 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
AFTERNOON...

* TIMING...A MODERATE RISK OF SNEAKER WAVES WILL PERSIST THROUGH
  THIS MORNING...WITH A SLIGHT RISK INTO THE AFTERNOON HOURS. 

* IMPACTS...LARGE 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 HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP
CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS
CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION
SHOULD BE USED WHEN IN OR NEAR THE WATER. NEVER TURN YOUR BACK TO
THE OCEAN!

$$
372 
WHUS46 KEKA 291848
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1148 AM PDT SUN OCT 29 2017

...THE THREAT FOR SNEAKER WAVES HAS DIMINISHED...

.THE LARGE SWELL THAT BROUGHT THE SNEAKER WAVE THREAT OVER THE
WEEKEND IS DIMINISHING. NORTH TO WEST FACING BEACHES MAY STILL
EXPERIENCE BREAKING WAVES OF 10 TO 15 FEET THIS AFTERNOON.
CONTINUE TO PRACTICE BEACH SAFETY WHEN VISITING THE BEACH.
EXERCISE CAUTION WHEN NEAR OR IN THE WATER AND NEVER TURN YOUR
BACK TO THE OCEAN. 

CAZ101-103-104-109-292000-
/O.CAN.KEKA.BH.S.0008.000000T0000Z-171030T0100Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
1148 AM PDT SUN OCT 29 2017

...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS CANCELLED THE BEACH
HAZARDS STATEMENT. 


$$

Nearby

Beach Hazards Statements in California, 2017Every beach hazards statement in 2017

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.