Alert archive / California / Beach Hazards Statements in 2020
Beach Hazards Statement 8, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Oct 31, 2020, 2:04 AM PDT for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Nov 1, 2020, 2:00 PM PST. It was in force for 27 hr.
The area
The counties it named.
The facts
- Issued
- Oct 31, 2020, 2:04 AM PDT (09:04 UTC)
- In effect from
- Nov 1, 2020, 2:00 PM PST
- Expired
- Nov 2, 2020, 5:00 PM PST
- In force
- 27 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 09:04 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, 9.1 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
- 2561 m above ground
- 0-6 km bulk shear
- 33 kt
- 0-1 km storm-relative helicity
- 26 m²/s²
- 0-3 km storm-relative helicity
- 170 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
125 WHUS46 KEKA 310904 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 204 AM PDT Sat Oct 31 2020 CAZ101-103-104-109-311715- /O.NEW.KEKA.BH.S.0008.201101T2200Z-201103T0100Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 204 AM PDT Sat Oct 31 2020 ...BEACH HAZARDS STATEMENT IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... * WHAT...A large northwesterly swell is expected Sunday afternoon through Monday afternoon resulting in an increased threat for sneaker waves along area beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...From Sunday afternoon through Monday afternoon.. . * IMPACTS...Sudden larger waves occurring after periods of smaller waves may sweep beach goers into the ocean. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
7 follow-up statements
689 WHUS46 KEKA 010141 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 641 PM PDT Sat Oct 31 2020 CAZ101-103-104-109-011200- /O.CON.KEKA.BH.S.0008.201101T2200Z-201103T0100Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 641 PM PDT Sat Oct 31 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM SUNDAY AFTERNOON THROUGH MONDAY AFTERNOON... * WHAT...A long period northwesterly swell is expected Sunday afternoon through Monday afternoon resulting in an increased threat for sneaker waves along area beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...From Sunday afternoon through Monday afternoon.. . * IMPACTS...Sudden larger waves occurring after periods of smaller waves may sweep beach goers into the ocean. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
450 WHUS46 KEKA 010959 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 159 AM PST Sun Nov 1 2020 CAZ101-103-104-109-011800- /O.CON.KEKA.BH.S.0008.201101T2200Z-201103T0100Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 159 AM PST Sun Nov 1 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THIS AFTERNOON THROUGH MONDAY AFTERNOON... * WHAT...A long period northwesterly swell is expected Sunday afternoon through Monday afternoon resulting in an increased threat for sneaker waves along area beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and Mendocino Coast Counties. * WHEN...From Sunday afternoon through Monday afternoon.. . * IMPACTS...Sudden larger waves occurring after periods of smaller waves may sweep beach goers into the ocean. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
768 WHUS46 KEKA 011622 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 822 AM PST Sun Nov 1 2020 CAZ101-103-104-109-020030- /O.CON.KEKA.BH.S.0008.201101T2200Z-201103T0100Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 822 AM PST Sun Nov 1 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 2 PM PST THIS AFTERNOON THROUGH MONDAY AFTERNOON... * WHAT...A long period northwesterly swell is expected Sunday afternoon through Monday afternoon resulting in an increased threat for sneaker waves along area beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and the Mendocino Coast. * WHEN...From Sunday afternoon through Monday afternoon. * IMPACTS...Sudden larger waves occurring after periods of smaller waves may sweep beach goers into the ocean. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
967 WHUS46 KEKA 012237 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 237 PM PST Sun Nov 1 2020 CAZ101-103-104-109-020645- /O.CON.KEKA.BH.S.0008.000000T0000Z-201103T0100Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 237 PM PST Sun Nov 1 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY AFTERNOON... * WHAT...A long period northwesterly swell is expected to build tonight and persist through Monday afternoon resulting in an increased threat for sneaker waves along area beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and the Mendocino Coast. * WHEN...Until Monday afternoon. * IMPACTS...Sudden larger waves occurring after periods of smaller waves may sweep beach goers into the ocean. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
804 WHUS46 KEKA 020606 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 1006 PM PST Sun Nov 1 2020 CAZ101-103-104-109-021415- /O.CON.KEKA.BH.S.0008.000000T0000Z-201103T0100Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 1006 PM PST Sun Nov 1 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH MONDAY AFTERNOON... * WHAT...A long period northwesterly swell is expected to persist through Monday afternoon resulting in an increased threat for sneaker waves along area beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and the Mendocino Coast. * WHEN...Until Monday afternoon. * IMPACTS...Sudden larger waves occurring after periods of smaller waves may sweep beach goers into the ocean. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
957 WHUS46 KEKA 021035 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 235 AM PST Mon Nov 2 2020 CAZ101-103-104-109-021845- /O.CON.KEKA.BH.S.0008.000000T0000Z-201103T0100Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 235 AM PST Mon Nov 2 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS AFTERNOON... * WHAT...A long period northwesterly swell is expected to persist through this afternoon resulting in an increased threat for sneaker waves along area beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and the Mendocino Coast. * WHEN...Until Monday afternoon. * IMPACTS...Sudden larger waves occurring after periods of smaller waves may sweep beach goers into the ocean. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
367 WHUS46 KEKA 022232 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 232 PM PST Mon Nov 2 2020 CAZ101-103-104-109-030100- /O.CON.KEKA.BH.S.0008.000000T0000Z-201103T0100Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 232 PM PST Mon Nov 2 2020 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 5 PM PST THIS AFTERNOON... * WHAT...A long period northwesterly swell is expected to persist through this afternoon resulting in an increased threat for sneaker waves along area beaches. * WHERE...Coastal Del Norte, Northern Humboldt Coast, Southwestern Humboldt and the Mendocino Coast. * WHEN...Until Monday afternoon. * IMPACTS...Sudden larger waves occurring after periods of smaller waves may sweep beach goers into the ocean. PRECAUTIONARY/PREPAREDNESS ACTIONS... Remain out of the water to avoid hazardous swimming conditions. && $$
Nearby
Beach Hazards Statements in California, 2020Every beach hazards statement in 2020
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.