Alert archive / California / Beach Hazards Statements in 2024

Beach Hazards Statement 9, NWS Eureka, CA

October 6, 2024Del Norte County, Humboldt County, California

NWS Eureka, CA issued this beach hazards statement at Oct 6, 2024, 3:28 AM PDT for Del Norte County, Humboldt County, California. It took effect at Oct 7, 2024, 8:00 AM PDT. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Oct 6, 2024, 3:28 AM PDT (10:28 UTC)
In effect from
Oct 7, 2024, 8:00 AM PDT
Expired
Oct 7, 2024, 6:00 PM PDT
In force
10 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 10:31 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, 10.5 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 00:00Z on 2024-10-06Temperature 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 2024-10-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 38 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
3075 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
38 m²/s²
0-3 km storm-relative helicity
108 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

663 
WHUS46 KEKA 061028
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
328 AM PDT Sun Oct 6 2024

CAZ101-103-061830-
/O.NEW.KEKA.BH.S.0009.241007T1700Z-241008T0000Z/
Coastal Del Norte-Northern Humboldt Coast-
328 AM PDT Sun Oct 6 2024

...BEACH HAZARDS STATEMENT IN EFFECT FROM MONDAY MORNING THROUGH
MONDAY AFTERNOON...

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

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

* WHEN...From Monday morning through Monday 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.

&&

$$
5 follow-up statements
934 
WHUS46 KEKA 061537
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
837 AM PDT Sun Oct 6 2024

CAZ101-103-070000-
/O.CON.KEKA.BH.S.0009.241007T1700Z-241008T0000Z/
Coastal Del Norte-Northern Humboldt Coast-
837 AM PDT Sun Oct 6 2024

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

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

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

* WHEN...From Monday morning through Monday 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.

&&

$$
813 
WHUS46 KEKA 062150
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
250 PM PDT Sun Oct 6 2024

CAZ101-103-070400-
/O.CON.KEKA.BH.S.0009.241007T1700Z-241008T0000Z/
Coastal Del Norte-Northern Humboldt Coast-
250 PM PDT Sun Oct 6 2024

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH MONDAY AFTERNOON...

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

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

* WHEN...From Monday morning through Monday 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.

&&

$$
269 
WHUS46 KEKA 070342
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
842 PM PDT Sun Oct 6 2024

CAZ101-103-071145-
/O.CON.KEKA.BH.S.0009.241007T1700Z-241008T0000Z/
Coastal Del Norte-Northern Humboldt Coast-
842 PM PDT Sun Oct 6 2024

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH LATE MONDAY AFTERNOON...

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

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

* WHEN...From Monday morning through late Monday 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.

&&

$$
144 
WHUS46 KEKA 070939
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
239 AM PDT Mon Oct 7 2024

CAZ101-103-071745-
/O.EXT.KEKA.BH.S.0009.241007T1500Z-241008T0100Z/
Coastal Del Norte-Northern Humboldt Coast-
239 AM PDT Mon Oct 7 2024

...BEACH HAZARDS STATEMENT NOW IN EFFECT FROM 8 AM PDT THIS
MORNING THROUGH THIS AFTERNOON...

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

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

* WHEN...From 8 AM PDT this morning 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.

&&

$$
874 
WHUS46 KEKA 071534
CFWEKA

Coastal Hazard Message
National Weather Service Eureka CA
834 AM PDT Mon Oct 7 2024

CAZ101-103-080100-
/O.CON.KEKA.BH.S.0009.000000T0000Z-241008T0100Z/
Coastal Del Norte-Northern Humboldt Coast-
834 AM PDT Mon Oct 7 2024

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 6 PM PDT THIS
EVENING...

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

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

* WHEN...Until 6 PM PDT this 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.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 6, 2:52 PM PDTSmall Craft AdvisoryEKA4 days

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.