Alert archive / California / Beach Hazards Statements in 2024
Beach Hazards Statement 13, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Dec 9, 2024, 2:13 PM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Dec 10, 2024, 5:00 AM PST. It was in force for 31 hr.
The area
The counties it named.
The facts
- Issued
- Dec 9, 2024, 2:13 PM PST (22:13 UTC)
- In effect from
- Dec 10, 2024, 5:00 AM PST
- Expired
- Dec 11, 2024, 12:00 PM PST
- In force
- 31 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 22:12 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, 10.2 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
- 665 m above ground
- 0-6 km bulk shear
- 61 kt
- 0-1 km storm-relative helicity
- -91 m²/s²
- 0-3 km storm-relative helicity
- -148 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
029 WHUS46 KEKA 092213 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 213 PM PST Mon Dec 9 2024 CAZ101-103-104-101100- /O.NEW.KEKA.BH.S.0013.241210T1300Z-241211T2000Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- 213 PM PST Mon Dec 9 2024 ...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY MORNING... * WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...From late tonight through Wednesday 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. 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. && $$ CAZ109-101100- /O.NEW.KEKA.BH.S.0013.241210T1300Z-241211T0600Z/ Mendocino Coast- 213 PM PST Mon Dec 9 2024 ...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY EVENING... * WHAT...Increased threat of sneaker waves expected. * WHERE...Mendocino Coast County. * WHEN...From late tonight through Tuesday evening. * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
2 follow-up statements
311 WHUS46 KEKA 100439 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 839 PM PST Mon Dec 9 2024 CAZ101-103-104-101245- /O.CON.KEKA.BH.S.0013.241210T1300Z-241211T2000Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- 839 PM PST Mon Dec 9 2024 ...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH WEDNESDAY MORNING... * WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...From 5 AM PST Tuesday through Wednesday 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. 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. && $$ CAZ109-101245- /O.CON.KEKA.BH.S.0013.241210T1300Z-241211T0600Z/ Mendocino Coast- 839 PM PST Mon Dec 9 2024 ...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE TONIGHT THROUGH TUESDAY EVENING... * WHAT...Increased threat of sneaker waves expected. * WHERE...Mendocino Coast County. * WHEN...From 5 AM PST Tuesday through Tuesday evening. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
442 WHUS46 KEKA 110432 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 832 PM PST Tue Dec 10 2024 CAZ101-103-104-111245- /O.CON.KEKA.BH.S.0013.000000T0000Z-241211T2000Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- 832 PM PST Tue Dec 10 2024 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH WEDNESDAY MORNING... * WHAT...Increased threat of sneaker waves expected. * WHERE...Coastal Del Norte, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...Through Wednesday 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. 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. && $$ CAZ109-110600- /O.CON.KEKA.BH.S.0013.000000T0000Z-241211T0600Z/ Mendocino Coast- 832 PM PST Tue Dec 10 2024 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 PM PST THIS EVENING... * WHAT...Increased threat of sneaker waves expected. * WHERE...Mendocino Coast County. * WHEN...Until 10 PM PST this evening. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These sneaker waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 8, 8:44 PM PST | Hazardous Seas Warning | EKA | 6 hr | |
| Dec 9, 3:01 PM PST | Small Craft Advisory | EKA | 70 hr | |
| Dec 9, 3:17 PM PST | Cold Weather Advisory | EKA | Del Norte, Humboldt, Mendocino | 18 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.