Alert archive / California / Beach Hazards Statements in 2024
Beach Hazards Statement 7, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Apr 6, 2024, 1:49 PM PDT for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Apr 7, 2024, 6:00 AM PDT. It was in force for 5 hr.
The area
The counties it named.
The facts
- Issued
- Apr 6, 2024, 1:49 PM PDT (20:49 UTC)
- In effect from
- Apr 7, 2024, 6:00 AM PDT
- Expired
- Apr 7, 2024, 11:00 AM PDT
- In force
- 5 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 20:49 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, 8.8 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.
- Mixed-layer CAPE
- 0 J/kg
- Mixed-layer CIN
- No buoyant parcel
- Mixed-layer LCL
- 870 m above ground
- 0-6 km bulk shear
- 34 kt
- 0-1 km storm-relative helicity
- 19 m²/s²
- 0-3 km storm-relative helicity
- 93 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
207 WHUS46 KEKA 062049 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 149 PM PDT Sat Apr 6 2024 CAZ101-103-104-109-071300- /O.NEW.KEKA.BH.S.0007.240407T1300Z-240407T1800Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 149 PM PDT Sat Apr 6 2024 ...BEACH HAZARDS STATEMENT IN EFFECT SUNDAY MORNING... * WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Sunday morning. * 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...The greatest risk will be from sunrise to the later morning hours before north winds begin to increase in the afternoon. 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. && $$
2 follow-up statements
583 WHUS46 KEKA 071258 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 558 AM PDT Sun Apr 7 2024 CAZ101-103-104-109-071800- /O.CON.KEKA.BH.S.0007.240407T1300Z-240407T1800Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 558 AM PDT Sun Apr 7 2024 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 AM PDT THIS MORNING... * WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Sunday morning. * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. * ADDITIONAL DETAILS...The greatest risk will be from sunrise to the later morning hours before north winds begin to increase in the afternoon. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
398 WHUS46 KEKA 071807 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 1107 AM PDT Sun Apr 7 2024 CAZ101-103-104-109-071915- /O.EXP.KEKA.BH.S.0007.000000T0000Z-240407T1800Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 1107 AM PDT Sun Apr 7 2024 ...BEACH HAZARDS STATEMENT HAS EXPIRED... $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Apr 6, 2:19 PM PDT | Frost Advisory | EKA | Lake, Mendocino | 19 hr |
| Apr 6, 2:30 PM PDT | Small Craft Advisory | EKA | 5 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.