Alert archive / California / Beach Hazards Statements in 2023
Beach Hazards Statement 5, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Feb 15, 2023, 2:32 PM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Feb 16, 2023, 12:00 PM PST. It was in force for 33 hr.
The area
The counties it named.
The facts
- Issued
- Feb 15, 2023, 2:32 PM PST (22:32 UTC)
- In effect from
- Feb 16, 2023, 12:00 PM PST
- Expired
- Feb 17, 2023, 9:00 PM PST
- In force
- 33 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 22:36 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, 10.5 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
- 543 m above ground
- 0-6 km bulk shear
- 60 kt
- 0-1 km storm-relative helicity
- 1 m²/s²
- 0-3 km storm-relative helicity
- 30 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
235 WHUS46 KEKA 152232 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 232 PM PST Wed Feb 15 2023 CAZ101-103-104-109-160645- /O.NEW.KEKA.BH.S.0005.230216T2000Z-230217T1400Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 232 PM PST Wed Feb 15 2023 ...BEACH HAZARDS STATEMENT IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... * WHAT...Large, unexpected waves along west and northwest facing beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast. * WHEN...From Thursday afternoon through late Thursday night. * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These 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. $$ SEC
7 follow-up statements
780 WHUS46 KEKA 160614 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 1014 PM PST Wed Feb 15 2023 CAZ101-103-104-109-161415- /O.CON.KEKA.BH.S.0005.230216T2000Z-230217T1400Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 1014 PM PST Wed Feb 15 2023 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THURSDAY AFTERNOON THROUGH LATE THURSDAY NIGHT... * WHAT...Large, unexpected waves along west and northwest facing beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast. * WHEN...From Thursday afternoon through late Thursday night. * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
223 WHUS46 KEKA 161259 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 459 AM PST Thu Feb 16 2023 CAZ101-103-104-109-162100- /O.EXT.KEKA.BH.S.0005.230216T2000Z-230217T2300Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 459 AM PST Thu Feb 16 2023 ...BEACH HAZARDS STATEMENT NOW IN EFFECT FROM NOON PST TODAY THROUGH FRIDAY AFTERNOON... * WHAT...Large, unexpected waves along west and northwest facing beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast. * WHEN...From noon PST today through Friday afternoon.. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These 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. && $$
960 WHUS46 KEKA 162101 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 101 PM PST Thu Feb 16 2023 CAZ101-103-104-109-170515- /O.CON.KEKA.BH.S.0005.000000T0000Z-230217T2300Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 101 PM PST Thu Feb 16 2023 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON... * WHAT...Large, unexpected waves along west and northwest facing beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt, and Mendocino Coast. * WHEN...From noon today through Friday afternoon.. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. $$
688 WHUS46 KEKA 170459 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 859 PM PST Thu Feb 16 2023 CAZ101-103-104-109-171300- /O.CON.KEKA.BH.S.0005.000000T0000Z-230217T2300Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 859 PM PST Thu Feb 16 2023 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH FRIDAY AFTERNOON... * WHAT...Large unexpected waves along the coast. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Through Friday afternoon.. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These 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. && $$
258 WHUS46 KEKA 171245 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 445 AM PST Fri Feb 17 2023 CAZ101-103-104-109-172200- /O.CON.KEKA.BH.S.0005.000000T0000Z-230217T2300Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 445 AM PST Fri Feb 17 2023 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 3 PM PST THIS AFTERNOON... * WHAT...Large unexpected waves along the coast. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Until 3 PM PST this afternoon.. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. There can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
802 WHUS46 KEKA 172148 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 148 PM PST Fri Feb 17 2023 CAZ101-103-104-109-180500- /O.EXT.KEKA.BH.S.0005.000000T0000Z-230218T0500Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 148 PM PST Fri Feb 17 2023 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL 9 PM PST THIS EVENING... * WHAT...Large unexpected waves along the coast. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Until 9 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 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. && $$
932 WHUS46 KEKA 180445 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 845 PM PST Fri Feb 17 2023 CAZ101-103-104-109-180545- /O.EXP.KEKA.BH.S.0005.000000T0000Z-230218T0500Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 845 PM PST Fri Feb 17 2023 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 9 PM PST THIS EVENING... $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Feb 14, 11:50 PM PST | Small Craft Advisory | EKA | 18 hr |
Nearby
Beach Hazards Statements in California, 2023Every beach hazards statement in 2023
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.