Alert archive / California / Beach Hazards Statements in 2016

Beach Hazards Statement 1, NWS Eureka, CA

November 2, 2016Del Norte County, Humboldt County, Mendocino County, California

NWS Eureka, CA issued this beach hazards statement at Nov 2, 2016, 10:45 AM PDT for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Nov 2, 2016, 4:00 PM PDT. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Nov 2, 2016, 10:45 AM PDT (17:45 UTC)
In effect from
Nov 2, 2016, 4:00 PM PDT
Expired
Nov 3, 2016, 11:00 AM PDT
In force
19 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 17:46 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, 5.8 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 2016-11-02Temperature 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 2016-11-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 96 square meters per square second.193958Sfc1 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
1125 m above ground
0-6 km bulk shear
34 kt
0-1 km storm-relative helicity
96 m²/s²
0-3 km storm-relative helicity
179 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

884 
WHUS46 KEKA 021745
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1045 AM PDT WED NOV 2 2016

...A LARGE WESTERLY SWELL WILL BRING A SNEAKER WAVE THREAT TONIGHT
THROUGH THURSDAY MORNING...

CAZ101-103-104-030145-
/O.NEW.KEKA.BH.S.0001.161102T2300Z-161103T1800Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
1045 AM PDT WED NOV 2 2016

...BEACH HAZARDS STATEMENT IN EFFECT FROM 4 PM PDT THIS AFTERNOON
THROUGH THURSDAY MORNING...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A BEACH HAZARDS
STATEMENT FOR SNEAKER WAVES...WHICH IS IN EFFECT FROM 4 PM PDT
THIS AFTERNOON THROUGH THURSDAY MORNING.

* LOCATION...COASTAL BEACHES OF DEL NORTE AND HUMBOLDT COUNTIES.

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE AROUND SUNSET
  THIS EVENING THURSDAY MORNING...WITH LARGE SURF BY THURSDAY
  AFTERNOON.

* 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 FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND
NEVER TURN THEIR BACK ON THE OCEAN. FISHERMEN SHOULD AVOID
FISHING FROM ROCKS AND JETTIES...

&&

$$

CAZ109-030145-
/O.NEW.KEKA.BH.S.0001.161103T1200Z-161103T1800Z/
MENDOCINO COAST-
1045 AM PDT WED NOV 2 2016

...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY MORNING...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A BEACH HAZARDS
STATEMENT FOR SNEAKER WAVES...WHICH IS IN EFFECT FROM LATE
TONIGHT THROUGH THURSDAY MORNING.

* LOCATION...COASTAL BEACHES OF MENDOCINO COUNTY.

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE THURSDAY
  MORNING...WITH LARGE SURF BY THURSDAY AFTERNOON.

* 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 FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND
NEVER TURN THEIR BACK ON THE OCEAN. FISHERMEN SHOULD AVOID
FISHING FROM ROCKS AND JETTIES...

&&

$$
3 follow-up statements
760 
WHUS46 KEKA 030138
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
638 PM PDT WED NOV 2 2016

...A LARGE WESTERLY SWELL WILL BRING A SNEAKER WAVE THREAT
TONIGHT THROUGH THURSDAY MORNING...

CAZ101-103-104-030945-
/O.CON.KEKA.BH.S.0001.000000T0000Z-161103T1800Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
638 PM PDT WED NOV 2 2016

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

* LOCATION...COASTAL BEACHES OF DEL NORTE AND HUMBOLDT COUNTIES.

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE THIS EVENING
  THROUGH THURSDAY MORNING...WITH LARGE SURF BY THURSDAY
  AFTERNOON.

* 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 FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND
NEVER TURN THEIR BACK ON THE OCEAN. FISHERMEN SHOULD AVOID
FISHING FROM ROCKS AND JETTIES...

&&

$$

CAZ109-030945-
/O.CON.KEKA.BH.S.0001.161103T1200Z-161103T1800Z/
MENDOCINO COAST-
638 PM PDT WED NOV 2 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 5 AM PDT
THURSDAY THROUGH THURSDAY MORNING...

* LOCATION...COASTAL BEACHES OF MENDOCINO COUNTY.

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE THURSDAY 
  MORNING...WITH LARGE SURF BY THURSDAY AFTERNOON. 

* 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 FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND
NEVER TURN THEIR BACK ON THE OCEAN. FISHERMEN SHOULD AVOID
FISHING FROM ROCKS AND JETTIES...

&&

$$
665 
WHUS46 KEKA 030916
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
216 AM PDT THU NOV 3 2016

...A LARGE WESTERLY SWELL WILL BRING A SNEAKER WAVE THREAT
TONIGHT THROUGH THURSDAY MORNING...

CAZ101-103-104-031800-
/O.CON.KEKA.BH.S.0001.000000T0000Z-161103T1800Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
216 AM PDT THU NOV 3 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 AM THIS
MORNING...

* LOCATION...COASTAL BEACHES OF DEL NORTE AND HUMBOLDT COUNTIES.

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE THROUGH THIS
  MORNING...WITH LARGE SURF BY THIS AFTERNOON.

* 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 FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND
NEVER TURN THEIR BACKS ON THE OCEAN. FISHERMEN SHOULD AVOID
FISHING FROM ROCKS AND JETTIES.

$$

CAZ109-031800-
/O.CON.KEKA.BH.S.0001.161103T1200Z-161103T1800Z/
MENDOCINO COAST-
216 AM PDT THU NOV 3 2016

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 AM THIS
MORNING...

* LOCATION...COASTAL BEACHES OF MENDOCINO COUNTY.

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE THIS MORNING...
  WITH LARGE SURF BY THIS AFTERNOON.

* 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 FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND
NEVER TURN THEIR BACKS ON THE OCEAN. FISHERMEN SHOULD AVOID
FISHING FROM ROCKS AND JETTIES.

$$
109 
WHUS46 KEKA 031811
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1111 AM PDT THU NOV 3 2016

CAZ101-103-104-109-031915-
/O.EXP.KEKA.BH.S.0001.000000T0000Z-161103T1800Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
1111 AM PDT THU NOV 3 2016

...BEACH HAZARDS STATEMENT HAS EXPIRED...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARD STATEMENT FOR SNEAKER WAVES MEANS THAT CONDITIONS
ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH
GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG
THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND
NEVER TURN THEIR BACKS ON THE OCEAN. FISHERMEN SHOULD AVOID
FISHING FROM ROCKS AND JETTIES.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 1, 9:57 PM PDTFrost AdvisoryEKATrinity10 hr

Nearby

Beach Hazards Statements in California, 2016Every beach hazards statement in 2016

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.