Alert archive / California / Beach Hazards Statements in 2017
Beach Hazards Statement 4, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Apr 1, 2017, 9:23 PM PDT for Del Norte County, Humboldt County, Mendocino County, California. It was in force for 23 hr.
The area
The counties it named.
The facts
- Issued
- Apr 1, 2017, 9:23 PM PDT (04:23 UTC)
- Expired
- Apr 2, 2017, 8:00 PM PDT
- In force
- 23 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 04:24 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, 4.4 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
- 3 J/kg
- Mixed-layer CIN
- -6 J/kg
- Mixed-layer LCL
- 1500 m above ground
- 0-6 km bulk shear
- 32 kt
- 0-1 km storm-relative helicity
- -9 m²/s²
- 0-3 km storm-relative helicity
- 12 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
539 WHUS46 KEKA 020423 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 923 PM PDT SAT APR 1 2017 CAZ101-103-104-109-021230- /O.NEW.KEKA.BH.S.0004.170402T0423Z-170403T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 923 PM PDT SAT APR 1 2017 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH SUNDAY EVENING... THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A BEACH HAZARDS STATEMENT...WHICH IS IN EFFECT THROUGH SUNDAY EVENING. * TIMING...A LONG PERIOD WESTERLY SWELL WILL IMPACT NORTHWEST CALIFORNIA BEACHES BRINGING LARGE SURF AROUND 15 TO 20 FT WITH POSSIBLE SNEAKER WAVES THROUGH SUNDAY. * 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 HAZARD STATEMENT FOR SNEAKER WAVES MEANS THAT CONDITIONS ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND NEVER TURN THEIR BACKS ON THE OCEAN. FISHERMEN SHOULD AVOID FISHING FROM ROCKS AND JETTIES. && $$
2 follow-up statements
337 WHUS46 KEKA 021152 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 452 AM PDT SUN APR 2 2017 CAZ101-103-104-109-022000- /O.CON.KEKA.BH.S.0004.000000T0000Z-170403T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 452 AM PDT SUN APR 2 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... * TIMING...A LONG PERIOD NORTHWESTERLY SWELL WILL IMPACT NORTHWEST CALIFORNIA BEACHES BRINGING LARGE SURF AROUND 15 TO 20 FT WITH POSSIBLE SNEAKER WAVES THROUGH THIS EVENING. * IMPACTS...LARGER SURF AT OFFSHORE BREAKS AND AN ENHANCED RISK OF SNEAKER WAVES ON NORTHWEST CALIFORNIA BEACHES. STEEP BEACHES WILL HAVE A HIGHER RISK OF SNEAKER WAVE ACTIVITY WITH GREATER WAVE RUN-UP ONTO BEACHES. LARGE WAVES WILL ALSO WASH OVER JETTIES AND ROCK OUTCROPPINGS THAT MAY NORMALLY STAY DRY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARD STATEMENT FOR SNEAKER WAVES MEANS THAT CONDITIONS ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND NEVER TURN THEIR BACKS ON THE OCEAN. FISHERMEN SHOULD AVOID FISHING FROM ROCKS AND JETTIES. && $$
516 WHUS46 KEKA 021810 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 1110 AM PDT SUN APR 2 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS EVENING... CAZ101-103-104-109-030300- /O.CON.KEKA.BH.S.0004.000000T0000Z-170403T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 1110 AM PDT SUN APR 2 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * TIMING...A LONG PERIOD NORTHWESTERLY SWELL WILL IMPACT NORTHWEST CALIFORNIA BEACHES BRINGING LARGE SURF AROUND 15 TO 20 FT WITH POSSIBLE SNEAKER WAVES THROUGH THIS EVENING. * 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 HAZARD STATEMENT FOR SNEAKER WAVES MEANS THAT CONDITIONS ARE PRESENT TO SUPPORT A HEIGHTENED RISK OF UNSUSPECTING BEACH GOERS BEING SWEPT INTO THE SEA BY A WAVE. PEOPLE WALKING ALONG THE BEACH SHOULD STAY FARTHER BACK FROM THE WATER THAN NORMAL AND NEVER TURN THEIR BACKS ON THE OCEAN. FISHERMEN SHOULD AVOID FISHING FROM ROCKS AND JETTIES. && $$
Nearby
Beach Hazards Statements in California, 2017Every beach hazards statement in 2017
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.