Alert archive / California / Beach Hazards Statements in 2017
Beach Hazards Statement 7, NWS Eureka, CA
NWS Eureka, CA issued this beach hazards statement at Oct 22, 2017, 3:12 AM PDT for Del Norte County, Humboldt County, Mendocino County, California. It took effect at Oct 23, 2017, 11:00 AM PDT. It was in force for 9 hr.
The area
The counties it named.
The facts
- Issued
- Oct 22, 2017, 3:12 AM PDT (10:12 UTC)
- In effect from
- Oct 23, 2017, 11:00 AM PDT
- Expired
- Oct 23, 2017, 8:00 PM PDT
- In force
- 9 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 10:15 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, 10.2 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
- 640 m above ground
- 0-6 km bulk shear
- 55 kt
- 0-1 km storm-relative helicity
- 246 m²/s²
- 0-3 km storm-relative helicity
- 445 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted.
320 WHUS46 KEKA 221012 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 312 AM PDT SUN OCT 22 2017 ...SMALL LONG PERIOD SWELL BUILDING ON MONDAY... .A LONG PERIOD NORTHWEST SWELL WILL BRING A SLIGHT THREAT FOR SNEAKER WAVES ON MONDAY. THE HIGHEST THREAT WILL LIKELY OCCUR FROM LATE MORNING THROUGH THE AFTERNOON HOURS WHEN THE SWELL IS FORECAST TO REACH 4 TO 6 FT AT 18 SECONDS. CAZ101-103-104-109-222330- /O.NEW.KEKA.BH.S.0007.171023T1800Z-171024T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 312 AM PDT SUN OCT 22 2017 ...BEACH HAZARDS STATEMENT IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... THE NATIONAL WEATHER SERVICE IN EUREKA HAS ISSUED A BEACH HAZARDS STATEMENT...WHICH IS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING. * TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM LATE MORNING MONDAY THROUGH EARLY MONDAY EVENING. * IMPACTS...SLIGHT 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 MAY 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 RIP CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. && $$
6 follow-up statements
617 WHUS46 KEKA 222119 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 219 PM PDT SUN OCT 22 2017 ...SMALL LONG PERIOD SWELL BUILDING ON MONDAY... .A LONG PERIOD NORTHWEST SWELL WILL BRING A SLIGHT THREAT FOR SNEAKER WAVES ON MONDAY. THE HIGHEST THREAT WILL LIKELY OCCUR FROM LATE MORNING THROUGH THE AFTERNOON HOURS WHEN THE SWELL IS FORECAST TO REACH 4 TO 6 FT AT 18 SECONDS. CAZ101-103-104-109-230530- /O.CON.KEKA.BH.S.0007.171023T1800Z-171024T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 219 PM PDT SUN OCT 22 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... * TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM LATE MORNING MONDAY THROUGH EARLY MONDAY EVENING. * IMPACTS...SLIGHT RISK OF SNEAKER WAVES ON NORTHWEST CALIFORNIA BEACHES. STEEP BEACHES WILL HAVE A HIGHER RISK OF SNEAKER WAVE ACTIVITY WITH GREATER WAVE RUN-UP ONTO BEACHES. LARGE WAVES MAY ALSO WASH OVER JETTIES AND ROCK OUTCROPPINGS THAT MAY NORMALLY STAY DRY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. && $$
530 WHUS46 KEKA 222323 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 423 PM PDT SUN OCT 22 2017 ...SLIGHT THREAT FOR SNEAKER WAVES ON MONDAY... .A LONG PERIOD NORTHWEST SWELL WILL BRING A SLIGHT THREAT FOR SNEAKER WAVES ON MONDAY. THE HIGHEST THREAT WILL LIKELY OCCUR FROM LATE MORNING THROUGH THE AFTERNOON HOURS WHEN THE SWELL IS FORECAST TO REACH 4 TO 6 FT AT 18 SECONDS. CAZ101-103-104-109-230730- /O.CON.KEKA.BH.S.0007.171023T1800Z-171024T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 423 PM PDT SUN OCT 22 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... * TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM LATE MORNING MONDAY THROUGH EARLY MONDAY EVENING. * IMPACTS...SLIGHT 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 MAY 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 RIP CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. && $$
125 WHUS46 KEKA 230542 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 1042 PM PDT SUN OCT 22 2017 ...SLIGHT THREAT FOR SNEAKER WAVES ON MONDAY... .A LONG PERIOD NORTHWEST SWELL WILL BRING A SLIGHT THREAT FOR SNEAKER WAVES ON MONDAY. THE HIGHEST THREAT WILL LIKELY OCCUR FROM LATE MORNING THROUGH THE AFTERNOON HOURS WHEN THE SWELL IS FORECAST TO REACH 4 TO 6 FT AT 18 SECONDS. CAZ101-103-104-109-231345- /O.CON.KEKA.BH.S.0007.171023T1800Z-171024T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 1042 PM PDT SUN OCT 22 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MONDAY MORNING THROUGH MONDAY EVENING... * TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM LATE MORNING MONDAY THROUGH EARLY MONDAY EVENING. * IMPACTS...SLIGHT RISK OF SNEAKER WAVES ON NORTHWEST CALIFORNIA BEACHES. STEEP BEACHES WILL HAVE A HIGHER RISK OF SNEAKER WAVE ACTIVITY WITH GREATER WAVE RUN-UP ONTO BEACHES. LARGE WAVES MAY ALSO WASH OVER JETTIES AND ROCK OUTCROPPINGS THAT MAY NORMALLY STAY DRY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. && $$
766 WHUS46 KEKA 231140 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 440 AM PDT MON OCT 23 2017 ...SLIGHT THREAT FOR SNEAKER WAVES TODAY... .A LONG PERIOD NORTHWEST SWELL WILL BRING A SLIGHT THREAT FOR SNEAKER WAVES TODAY. THE HIGHEST THREAT WILL LIKELY OCCUR FROM LATE THIS MORNING THROUGH THE AFTERNOON HOURS WHEN THE SWELL IS FORECAST TO REACH 4 TO 6 FT AT 18 SECONDS. CAZ101-103-104-109-240245- /O.CON.KEKA.BH.S.0007.171023T1800Z-171024T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 440 AM PDT MON OCT 23 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 11 AM PDT THIS MORNING THROUGH THIS EVENING... * TIMING...THE HIGHEST SNEAKER WAVE RISK WILL BE FROM LATE THIS MORNING THROUGH EARLY THIS EVENING. * IMPACTS...SLIGHT 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 MAY 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 RIP CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. && $$
828 WHUS46 KEKA 231557 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 857 AM PDT MON OCT 23 2017 ...SLIGHT THREAT FOR SNEAKER WAVES TODAY... .A LONG PERIOD NORTHWEST SWELL WILL BRING A SLIGHT THREAT FOR SNEAKER WAVES TODAY. THE HIGHEST THREAT WILL LIKELY OCCUR FROM LATE THIS MORNING THROUGH THE AFTERNOON HOURS WHEN THE SWELL IS FORECAST TO REACH 4 TO 6 FT AT 18 SECONDS. CAZ101-103-104-109-240000- /O.CON.KEKA.BH.S.0007.171023T1800Z-171024T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 857 AM PDT MON OCT 23 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * TIMING...THE HIGHEST SNEAKER WAVE RISK WILL PERSIST THROUGH THROUGH EARLY THIS EVENING. * IMPACTS...SLIGHT RISK OF SNEAKER WAVES ON NORTHWEST CALIFORNIA BEACHES. STEEP BEACHES WILL HAVE A HIGHER RISK OF SNEAKER WAVE ACTIVITY WITH GREATER WAVE RUN-UP ONTO BEACHES. LARGE WAVES MAY ALSO WASH OVER JETTIES AND ROCK OUTCROPPINGS THAT MAY NORMALLY STAY DRY. PRECAUTIONARY/PREPAREDNESS ACTIONS... A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS RIP CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. && $$
920 WHUS46 KEKA 232155 CFWEKA COASTAL HAZARD MESSAGE NATIONAL WEATHER SERVICE EUREKA CA 255 PM PDT MON OCT 23 2017 ...SLIGHT THREAT FOR SNEAKER WAVES TODAY... .A LONG PERIOD NORTHWEST SWELL WILL BRING A SLIGHT THREAT FOR SNEAKER WAVES TODAY. THE HIGHEST THREAT IS THIS AFTERNOON WITH A SWELL OF 4 TO 6 FT AT 18 SECONDS MOVING INTO THE WATERS CAZ101-103-104-109-240300- /O.CON.KEKA.BH.S.0007.000000T0000Z-171024T0300Z/ COASTAL DEL NORTE-NORTHERN HUMBOLDT COAST-SOUTHWESTERN HUMBOLDT- MENDOCINO COAST- 255 PM PDT MON OCT 23 2017 ...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 8 PM PDT THIS EVENING... * TIMING...THE HIGHEST SNEAKER WAVE RISK WILL PERSIST THROUGH THROUGH EARLY THIS EVENING. * IMPACTS...SLIGHT 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 MAY 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 RIP CURRENTS...LONGSHORE CURRENTS...SNEAKER WAVES AND OTHER HAZARDS CREATE LIFE-THREATENING CONDITIONS IN THE SURF ZONE. CAUTION SHOULD BE USED WHEN IN OR NEAR THE WATER. && $$
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.