Alert archive / California / Beach Hazards Statements in 2016

Beach Hazards Statement 2, NWS Eureka, CA

November 3, 2016Del Norte County, Humboldt County, Mendocino County, California

NWS Eureka, CA issued this beach hazards statement at Nov 3, 2016, 11:16 AM PDT for Del Norte County, Humboldt County, Mendocino County, California. It was in force for 8 hr.

The area

The counties it named.

The facts

Issued
Nov 3, 2016, 11:16 AM PDT (18:16 UTC)
Expired
Nov 3, 2016, 7:00 PM PDT
In force
8 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 18:20 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, 6.3 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 2016-11-03Temperature 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 2016-11-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
1349 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
55 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

896 
WHUS46 KEKA 031816
CFWEKA

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE EUREKA CA
1116 AM PDT THU NOV 3 2016

...BUILDING WEST SWELL WILL BRING LARGE SURF AND A SNEAKER WAVE
THREAT THROUGH THIS EVENING...

CAZ101-103-104-109-040200-
/O.NEW.KEKA.BH.S.0002.161103T1816Z-161104T0200Z/
COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT-
MENDOCINO COAST-
1116 AM PDT THU NOV 3 2016

...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 7 PM PDT THIS
EVENING...

THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A BEACH HAZARDS
STATEMENT FOR SNEAKER WAVES...WHICH REMAINS EFFECT UNTIL 7 PM PDT
THIS EVENING.

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

* TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM THROUGH
  SUNSET. 

* 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.

&&

$$

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.