Alert archive / California / Beach Hazards Statements in 2018
Beach Hazards Statement 1, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Jan 11, 2018, 9:27 AM PST for Del Norte County, Humboldt County, Mendocino County, California. It was in force for 18 hr.
The area
The counties it named.
The facts
- Issued
- Jan 11, 2018, 9:27 AM PST (17:27 UTC)
- Expired
- Jan 12, 2018, 3:39 AM PST
- In force
- 18 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 17:29 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, 5.5 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
- 774 m above ground
- 0-6 km bulk shear
- 74 kt
- 0-1 km storm-relative helicity
- 146 m²/s²
- 0-3 km storm-relative helicity
- 372 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
959 WHUS46 KEKA 111727 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 927 AM PST Thu Jan 11 2018 CAZ101-103-104-109-120800- /O.NEW.KEKA.BH.S.0001.180111T1727Z-180112T0800Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 927 AM PST Thu Jan 11 2018 ...RISK OF SNEAKER WAVES AT AREA BEACHES TODAY... The National Weather Service in Eureka has issued a Beach Hazards Statement...which is in effect through this evening. * TIMING...The highest sneaker wave risk will be during the daylight hours today. * IMPACTS...Larger surf at offshore breaks and an enhanced risk of sneaker waves on northwest California beaches. Steep beaches will have a higher risk of sneaker wave activity with greater wave run-up onto beaches. Large waves will also wash over jetties and rock outcroppings that may normally stay dry. PRECAUTIONARY/PREPAREDNESS ACTIONS... A beach hazards statement is issued when threats such as sneaker waves create life-threatening conditions in the surf zone. Caution should be used when in or near the water. Never turn your back to the ocean! $$
2 follow-up statements
156 WHUS46 KEKA 120351 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 751 PM PST Thu Jan 11 2018 CAZ101-103-104-109-121400- /O.EXT.KEKA.BH.S.0001.000000T0000Z-180112T1400Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 751 PM PST Thu Jan 11 2018 ...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL 6 AM PST FRIDAY... * TIMING...The risk for sneaker waves will continue through early Friday morning. * IMPACTS...Larger surf at offshore breaks and an enhanced risk of sneaker waves on northwest California beaches. Steep beaches will have a higher risk of sneaker wave activity with greater wave run-up onto beaches. Large waves will also wash over jetties and rock outcroppings that may normally stay dry. PRECAUTIONARY/PREPAREDNESS ACTIONS... A beach hazards statement is issued when threats such as sneaker waves create life-threatening conditions in the surf zone. Caution should be used when in or near the water. Never turn your back to the ocean! $$
018 WHUS46 KEKA 121139 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 339 AM PST Fri Jan 12 2018 CAZ101-103-104-109-121245- /O.CAN.KEKA.BH.S.0001.000000T0000Z-180112T1400Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 339 AM PST Fri Jan 12 2018 ...BEACH HAZARDS STATEMENT IS CANCELLED... The National Weather Service in Eureka has cancelled the Beach Hazards Statement. $$
Nearby
Beach Hazards Statements in California, 2018Every beach hazards statement in 2018
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.