Alert archive / California / Beach Hazards Statements in 2021
Beach Hazards Statement 1, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Dec 13, 2021, 5:43 AM PST for Del Norte County, Humboldt County, Mendocino County, California. It was in force for 28 hr.
The area
The counties it named.
The facts
- Issued
- Dec 13, 2021, 5:43 AM PST (13:43 UTC)
- Expired
- Dec 14, 2021, 10:00 AM PST
- In force
- 28 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 13:46 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, 1.7 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
- 617 m above ground
- 0-6 km bulk shear
- 90 kt
- 0-1 km storm-relative helicity
- 239 m²/s²
- 0-3 km storm-relative helicity
- 314 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
166 WHUS46 KEKA 131343 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 543 AM PST Mon Dec 13 2021 CAZ101-103-104-109-132145- /O.NEW.KEKA.BH.S.0001.211213T1343Z-211214T1400Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 543 AM PST Mon Dec 13 2021 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH LATE TONIGHT... * WHAT...Large breaking waves 18 to 21 feet along WNW facing beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...Through late tonight.. . * 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. && $$
5 follow-up statements
905 WHUS46 KEKA 132133 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 133 PM PST Mon Dec 13 2021 CAZ101-103-104-109-141200- /O.EXT.KEKA.BH.S.0001.000000T0000Z-211214T1200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 133 PM PST Mon Dec 13 2021 ...BEACH HAZARDS STATEMENT NOW IN EFFECT THROUGH LATE TONIGHT... * WHAT...Large breaking waves along west to northwest facing beaches up to 23 feet. * WHERE...Coastal Del Norte, Mendocino Coast, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...Through late tonight.. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. there can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
803 WHUS46 KEKA 140137 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 537 PM PST Mon Dec 13 2021 CAZ101-103-104-109-140945- /O.CON.KEKA.BH.S.0001.000000T0000Z-211214T1200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 537 PM PST Mon Dec 13 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 AM PST TUESDAY... * WHAT...Large breaking waves to 24 feet along west to northwest facing beaches. * WHERE...Coastal Del Norte, Mendocino Coast, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...Until 4 AM PST Tuesday.. . * 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. && $$
423 WHUS46 KEKA 140927 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 127 AM PST Tue Dec 14 2021 CAZ101-103-104-109-141200- /O.CON.KEKA.BH.S.0001.000000T0000Z-211214T1200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 127 AM PST Tue Dec 14 2021 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 AM PST EARLY THIS MORNING... * WHAT...Large unexpected waves along the coast. * WHERE...Coastal Del Norte, Mendocino Coast, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...Until 4 AM PST early this morning.. . * IMPACTS...Large, unexpected waves can sweep across the beach without warning, sweeping people into the sea from rocks, jetties, and beaches. These waves can also move large objects such as logs, crushing anyone caught underneath. PRECAUTIONARY/PREPAREDNESS ACTIONS... Don't be fooled by an ocean that looks calm. there can be 30 minutes of small waves before a sneaker wave strikes. Avoid rocks and jetties. Avoid steep beaches. Stay much farther back from the water and never turn your back on the ocean. && $$
958 WHUS46 KEKA 141129 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 329 AM PST Tue Dec 14 2021 CAZ101-103-104-109-141800- /O.EXT.KEKA.BH.S.0001.000000T0000Z-211214T1800Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 329 AM PST Tue Dec 14 2021 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL 10 AM PST THIS MORNING... * WHAT...Large unexpected waves along the coast. * WHERE...Coastal Del Norte, Mendocino Coast, Northern Humboldt Coast and Southwestern Humboldt Counties. * WHEN...Until 10 AM PST this morning.. . * 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. && $$
237 WHUS46 KEKA 141757 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 957 AM PST Tue Dec 14 2021 CAZ101-103-104-109-141900- /O.EXP.KEKA.BH.S.0001.000000T0000Z-211214T1800Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 957 AM PST Tue Dec 14 2021 ...BEACH HAZARDS STATEMENT WILL EXPIRE AT 10 AM PST THIS MORNING... $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Dec 12, 5:27 PM PST | Winter Weather Advisory | EKA | Lake, Mendocino | 35 hr |
| Dec 13, 1:44 AM PST | Hazardous Seas Warning | EKA | 16 hr | |
| Dec 13, 8:54 AM PST | Special Weather Statement | EKA | Humboldt | 36 min |
| Dec 13, 2:21 PM PST | Gale Warning | EKA | 49 hr | |
| Dec 13, 2:25 PM PST | Winter Storm Watch | EKA | Del Norte, Humboldt, Lake, Mendocino, Trinity | 24 hr |
Nearby
Beach Hazards Statements in California, 2021Every beach hazards statement in 2021
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.