Alert archive / California / Beach Hazards Statements in 2018
Beach Hazards Statement 8, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Nov 25, 2018, 8:40 PM PST for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Nov 26, 2018, 4:00 AM PST. It was in force for 17 hr.
The area
The counties it named.
The facts
- Issued
- Nov 25, 2018, 8:40 PM PST (04:40 UTC)
- In effect from
- Nov 26, 2018, 4:00 AM PST
- Expired
- Nov 26, 2018, 9:00 PM PST
- In force
- 17 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 04:38 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, 4.7 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
- 1586 m above ground
- 0-6 km bulk shear
- 23 kt
- 0-1 km storm-relative helicity
- 33 m²/s²
- 0-3 km storm-relative helicity
- 23 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
028 WHUS46 KEKA 260440 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 840 PM PST Sun Nov 25 2018 ...SNEAKER WAVE RISK FROM EARLY MONDAY THROUGH LATE MONDAY NIGHT... CAZ101-103-104-109-261245- /O.NEW.KEKA.BH.S.0008.181126T1200Z-181127T1200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 840 PM PST Sun Nov 25 2018 ...BEACH HAZARDS STATEMENT IN EFFECT FROM 4 AM PST MONDAY THROUGH LATE MONDAY NIGHT... The National Weather Service in Eureka has issued a Beach Hazards Statement...which is in effect from 4 AM PST Monday through 4 AM PST Tuesday. * TIMING...The highest sneaker wave risk will be from early Monday morning through late Monday night. * IMPACTS...A long period northwest swell will move through the coastal waters and enhance the 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. Surf will continue to build beyond Monday, with large breaking waves expected Tuesday and Wednesday as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Beach Hazard Statement is issued when threats such as sneaker waves and other hazards create life-threatening conditions in the surf zone. Caution should be used when in or near the water. && $$
3 follow-up statements
296 WHUS46 KEKA 261055 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 255 AM PST Mon Nov 26 2018 ...SNEAKER WAVE RISK FROM THIS MORNING THROUGH LATE TONIGHT... CAZ101-103-104-109-262300- /O.CON.KEKA.BH.S.0008.181126T1200Z-181127T1200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 255 AM PST Mon Nov 26 2018 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * TIMING...The highest sneaker wave risk will be from early this morning through late Monday night. * IMPACTS...A long period northwest swell will move through the coastal waters and enhance the risk of sneaker waves on northwest California beaches. Steep beaches will have a higher risk of sneaker wave activity with greater wave run-up onto beaches. Large waves will also wash over jetties and rock outcroppings that may normally stay dry. Surf will continue to build beyond Monday, with large breaking waves expected Tuesday and Wednesday as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Beach Hazard Statement is issued when threats such as sneaker waves and other hazards create life-threatening conditions in the surf zone. Caution should be used when in or near the water. && $$
783 WHUS46 KEKA 262256 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 256 PM PST Mon Nov 26 2018 ...SNEAKER WAVE RISK CONTINUES THIS AFTERNOON WITH MUCH LARGER BREAKING WAVES ARRIVING TONIGHT AND CONTINUING WEDNESDAY... CAZ101-103-104-109-270700- /O.CON.KEKA.BH.S.0008.000000T0000Z-181127T1200Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 256 PM PST Mon Nov 26 2018 ...HIGH SURF ADVISORY IN EFFECT FROM 9 PM TONIGHT THROUGH MIDNIGHT WEDNESDAY NIGHT... ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE TONIGHT... * WAVES AND SURF...Combined seas will build tonight to 14 to 17 feet with a predominant period of 15 to 18 seconds, producing breaking waves of 18 to 24 feet. * TIMING...The highest sneaker wave risk will be this afternoon, while large breaking waves will arrive tonight and continue through Wednesday night. * IMPACTS...A long period northwest swell will move through the coastal waters and enhance the 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. Surf will continue to build beyond Monday, with large breaking waves expected Tuesday and Wednesday as well. PRECAUTIONARY/PREPAREDNESS ACTIONS... A Beach Hazard Statement is issued when threats such as sneaker waves and other hazards create life-threatening conditions in the surf zone. Caution should be used when in or near the water. && $$
102 WHUS46 KEKA 270500 CFWEKA Coastal Hazard Message National Weather Service Eureka CA 900 PM PST Mon Nov 26 2018 ...HIGH SURF BETWEEN 18 AND 24 FEET THROUGH WEDNESDAY NIGHT... CAZ101-103-104-109-271300- /O.CAN.KEKA.BH.S.0008.000000T0000Z-181127T1200Z/ /O.NEW.KEKA.SU.Y.0004.181127T0500Z-181129T0800Z/ Coastal Del Norte-Northern Humboldt Coast-Southwestern Humboldt- Mendocino Coast- 900 PM PST Mon Nov 26 2018 ...HIGH SURF ADVISORY IN EFFECT UNTIL MIDNIGHT PST WEDNESDAY NIGHT... * WAVES AND SURF...Combined seas will build tonight to 14 to 17 feet with a predominant period of 15 to 18 seconds, producing breaking waves of 18 to 24 feet. * TIMING...Through Wednesday night. Seas will peak Tuesday night into Wednesday morning. * IMPACTS...Large waves will wash over jetties and rock outcroppings that may normally stay dry. Larger wave sets can appear suddenly and be deadly if you are not paying attention. Surf will continue to build beyond Monday with large breaking waves also expected Tuesday and Wednesday. PRECAUTIONARY/PREPAREDNESS ACTIONS... A High Surf Advisory means that high surf will affect beaches in the advisory area, producing rip currents and localized beach erosion. && $$
The office that day
Everything else NWS Eureka, CA issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Nov 26, 3:13 PM PST | Wind Advisory | EKA | Del Norte, Humboldt | 12 hr |
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.