Alert archive / California / Beach Hazards Statements in 2024

Beach Hazards Statement 3, NWS Eureka, CA

February 9, 2024Del Norte County, Humboldt County, California

NWS Eureka, CA issued this beach hazards statement at Feb 9, 2024, 3:43 PM PST for Del Norte County, Humboldt County, California. It took effect at Feb 10, 2024, 3:00 PM PST. It was in force for 26 hr.

The area

The counties it named.

The facts

Issued
Feb 9, 2024, 3:43 PM PST (23:43 UTC)
In effect from
Feb 10, 2024, 3:00 PM PST
Expired
Feb 11, 2024, 5:00 PM PST
In force
26 hr
Issued by
NWS Eureka, CA

Counties Del Norte County, CA, Humboldt County, CA

The radar

The Eureka (Bunker Hill) radar (KBHX), 86 km from the middle of the area, began a volume at 23:46 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, 11.7 hours before the alert went out and 158 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 2024-02-09Temperature 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 2024-02-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 62 square meters per square second.1939587897117Sfc1 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
655 m above ground
0-6 km bulk shear
61 kt
0-1 km storm-relative helicity
62 m²/s²
0-3 km storm-relative helicity
229 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

781 
WHUS46 KEKA 092343
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
343 PM PST Fri Feb 9 2024

CAZ101-103-104-100745-
/O.NEW.KEKA.BH.S.0003.240210T2300Z-240211T0600Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
343 PM PST Fri Feb 9 2024

...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY AFTERNOON
THROUGH SATURDAY EVENING...

* WHAT...Increased threat of sneaker waves expected.

* WHERE...Coastal Del Norte, Northern Humboldt Coast and 
  Southwestern Humboldt Counties.

* WHEN...From Saturday afternoon through Saturday evening. .

* IMPACTS...Large, unexpected waves can sweep across the beach 
  without warning, sweeping people into the sea from rocks, 
  jetties, and beaches. These sneaker waves can also move large 
  objects such as logs, crushing anyone caught underneath.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

&&

$$
6 follow-up statements
620 
WHUS46 KEKA 100734
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
1134 PM PST Fri Feb 9 2024

CAZ104-100845-
/O.CAN.KEKA.BH.S.0003.240210T2300Z-240211T0600Z/
Southwestern Humboldt-
1134 PM PST Fri Feb 9 2024

...BEACH HAZARDS STATEMENT IS CANCELLED...


$$

CAZ101-103-101545-
/O.CON.KEKA.BH.S.0003.240210T2300Z-240211T0600Z/
Coastal Del Norte-Northern Humboldt Coast-
1134 PM PST Fri Feb 9 2024

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SATURDAY
AFTERNOON THROUGH SATURDAY EVENING...

* WHAT...Increased threat of sneaker waves expected.

* WHERE...Coastal Del Norte, Northern Humboldt Coast and 
  Southwestern Humboldt Counties. 

* WHEN...From Saturday afternoon through Saturday evening. .

* IMPACTS...Large, unexpected waves can sweep across the beach 
  without warning, sweeping people into the sea from rocks, 
  jetties, and beaches. These sneaker waves can also move large 
  objects such as logs, crushing anyone caught underneath. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

&&

$$
807 
WHUS46 KEKA 101453
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
653 AM PST Sat Feb 10 2024

CAZ101-103-102300-
/O.CON.KEKA.BH.S.0003.240210T2300Z-240211T0600Z/
Coastal Del Norte-Northern Humboldt Coast-
653 AM PST Sat Feb 10 2024

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 3 PM PST THIS
AFTERNOON THROUGH THIS EVENING...

* WHAT...Increased threat of sneaker waves expected.

* WHERE...Coastal Del Norte, Northern Humboldt Coast and 
  Southwestern Humboldt Counties. 

* WHEN...From Saturday afternoon through Saturday evening. .

* IMPACTS...Large, unexpected waves can sweep across the beach 
  without warning, sweeping people into the sea from rocks, 
  jetties, and beaches. These sneaker waves can also move large 
  objects such as logs, crushing anyone caught underneath. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

&&

$$
043 
WHUS46 KEKA 102132
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
132 PM PST Sat Feb 10 2024

CAZ104-110545-
/O.EXB.KEKA.BH.S.0003.240210T2300Z-240212T0100Z/
Southwestern Humboldt-
132 PM PST Sat Feb 10 2024

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

* WHAT...Increased threat of sneaker waves expected.

* WHERE...Southwestern Humboldt County.

* WHEN...Through Sunday afternoon. .

* IMPACTS...Large, unexpected waves can sweep across the beach 
  without warning, sweeping people into the sea from rocks, 
  jetties, and beaches. These sneaker waves can also move large 
  objects such as logs, crushing anyone caught underneath.

* ADDITIONAL DETAILS...

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

&&

$$

CAZ101-103-110545-
/O.EXT.KEKA.BH.S.0003.240210T2300Z-240212T0100Z/
Coastal Del Norte-Northern Humboldt Coast-
132 PM PST Sat Feb 10 2024

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

* WHAT...Increased threat of sneaker waves expected.

* WHERE...Coastal Del Norte, Northern Humboldt Coast and 
  Southwestern Humboldt Counties.

* WHEN...Through Sunday afternoon. .

* IMPACTS...Large, unexpected waves can sweep across the beach
  without warning, sweeping people into the sea from rocks,
  jetties, and beaches. These sneaker waves can also move large
  objects such as logs, crushing anyone caught underneath.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

&&

$$
073 
WHUS46 KEKA 110545
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
945 PM PST Sat Feb 10 2024

CAZ101-103-104-111345-
/O.CON.KEKA.BH.S.0003.000000T0000Z-240212T0100Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
945 PM PST Sat Feb 10 2024

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

* WHAT...Increased threat of sneaker waves expected.

* WHERE...Coastal Del Norte, Northern Humboldt Coast and 
  Southwestern Humboldt Counties.

* WHEN...Through Sunday afternoon. .

* IMPACTS...Large, unexpected waves can sweep across the beach 
  without warning, sweeping people into the sea from rocks, 
  jetties, and beaches. These sneaker waves can also move large 
  objects such as logs, crushing anyone caught underneath.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

&&

$$
645 
WHUS46 KEKA 111207
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
407 AM PST Sun Feb 11 2024

CAZ101-103-104-112115-
/O.CON.KEKA.BH.S.0003.000000T0000Z-240212T0100Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
407 AM PST Sun Feb 11 2024

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

* WHAT...Increased threat of sneaker waves expected.

* WHERE...Coastal Del Norte, Northern Humboldt Coast and 
  Southwestern Humboldt Counties.

* WHEN...Through this afternoon. .

* IMPACTS...Large, unexpected waves can sweep across the beach 
  without warning, sweeping people into the sea from rocks, 
  jetties, and beaches. These sneaker waves can also move large 
  objects such as logs, crushing anyone caught underneath.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

&&

$$
096 
WHUS46 KEKA 112101
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
101 PM PST Sun Feb 11 2024

CAZ101-103-104-120100-
/O.CON.KEKA.BH.S.0003.000000T0000Z-240212T0100Z/
Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt-
101 PM PST Sun Feb 11 2024

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 5 PM PST THIS
AFTERNOON...

* WHAT...Increased threat of sneaker waves expected.

* WHERE...Coastal Del Norte, Northern Humboldt Coast and 
  Southwestern Humboldt Counties.

* WHEN...Through this afternoon.

* IMPACTS...Large, unexpected waves can sweep across the beach
  without warning, sweeping people into the sea from rocks,
  jetties, and beaches. These sneaker waves can also move large
  objects such as logs, crushing anyone caught underneath.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Don't be fooled by an ocean that looks calm.  There can be
30 minutes of small waves before a sneaker wave strikes.  Avoid
rocks and jetties. Avoid steep beaches.  Stay much farther back
from the water and never turn your back on the ocean.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 8, 9:00 PM PSTSmall Craft AdvisoryEKA12 hr
Feb 9, 2:08 AM PSTSmall Craft AdvisoryEKA31 hr
Feb 9, 3:12 AM PSTCoastal Flood AdvisoryEKAHumboldt8 hr

Nearby

Beach Hazards Statements in California, 2024Every beach hazards statement in 2024

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.