Alert archive / California / Beach Hazards Statements in 2015

Beach Hazards Statement 6, NWS San Diego, CA

April 30, 2015Orange County, San Diego County, California

NWS San Diego, CA issued this beach hazards statement at Apr 30, 2015, 1:01 PM PDT for Orange County, San Diego County, California. It took effect at May 3, 2015, 5:00 AM PDT. It was in force for .

The area

The counties it named.

The facts

Issued
Apr 30, 2015, 1:01 PM PDT (20:01 UTC)
In effect from
May 3, 2015, 5:00 AM PDT
Expired
May 1, 2015, 12:40 PM PDT
In force
Issued by
NWS San Diego, CA

Counties Orange County, CA, San Diego County, CA

The radar

The San Diego radar (KNKX), 53 km from the middle of the area, began a volume at 20:03 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

San Diego, CA (KNKX), launched 12:00Z, 8.0 hours before the alert went out and 62 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.

Skew-T log-pSkew-T log-p diagram, San Diego, CA at 12:00Z on 2015-04-30Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 12:00Z on 2015-04-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
3440 m above ground
0-6 km bulk shear
18 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
16 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

491 
WHUS46 KSGX 302001
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
101 PM PDT THU APR 30 2015

...LARGE SURF LIKELY SUNDAY THROUGH TUESDAY...

.A PAIR OF 3 TO 4 FOOT LONG-PERIOD SOUTH-SOUTHWEST SWELLS WILL
ARRIVE TO THE BEACHES BY LATE SATURDAY...PEAK SUNDAY AND
MONDAY...LOWER VERY SLIGHTLY TUESDAY...AND LOWER FURTHER
WEDNESDAY INTO THE END OF NEXT WORK WEEK. THE SWELLS ARE LIKELY TO
PRODUCE LARGE SURF IN ORANGE COUNTY...AND SOME LOCAL HIGH SURF
COULD OCCUR IN NORTHERN SAN DIEGO COUNTY AS WELL. POWERFUL RIP
CURRENTS...SOME BEACH EROSION AND STRONG LONG-SHORE CURRENTS ARE
ALSO EXPECTED WITH THESE SWELLS. THE HIGH SURF AND STRONG CURRENTS
WILL CREATE VERY DANGEROUS SWIMMING CONDITIONS.

CAZ043-552-010800-
/O.NEW.KSGX.BH.S.0006.150503T1200Z-150506T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
101 PM PDT THU APR 30 2015

...BEACH HAZARDS STATEMENT IN EFFECT FROM LATE SATURDAY NIGHT
THROUGH TUESDAY EVENING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A BEACH
HAZARDS STATEMENT FOR A HIGH SURF OUTLOOK...WHICH IS IN EFFECT
FROM LATE SATURDAY NIGHT THROUGH TUESDAY EVENING.

* WAVES AND SURF...7 TO 10 FEET WITH 12 FOOT SETS ALONG ORANGE
  COUNTY BEACHES...AND LOCALLY ALONG SAN DIEGO COUNTY BEACHES
  NORTH OF OCEANSIDE.

* TIMING...SURF RISING LATE SATURDAY...PEAKING SUNDAY INTO
  MONDAY...LOWERING VERY SLIGHTLY ON TUESDAY...THEN LOWERING MORE
  SIGNIFICANTLY WEDNESDAY INTO THE END OF THE WORK WEEK.

* IMPACTS...THE LARGE SURF AND POWERFUL RIP CURRENTS WILL PRODUCE
  VERY DANGEROUS SWIMMING CONDITIONS. PEOPLE STANDING TOO CLOSE TO
  THE WAVES CAN BE SWEPT OFF THEIR FEET AND INJURED. LARGE WAVES
  CAN SWEEP PEOPLE OFF OF JETTIES AND WAVES MAY WASH OVER SEA
  WALLS. BOATS MAY HAVE TROUBLE IN THE HIGH SURF CONDITIONS.
  MODERATE BEACH EROSION LIKELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS STRONG
RIP CURRENTS...ELEVATED OR HIGH SURF HEIGHTS...MINOR TIDAL
OVERFLOW...OR LIGHTNING ARE POSSIBLE AT LOCAL BEACHES. OBEY POSTED
WARNING SIGNS AND FLAGS AND TALK TO A LIFEGUARD BEFORE SWIMMING.
USE CAUTION WHEN IN OR NEAR THE WATER AND ALWAYS SWIM NEAR A
LIFEGUARD.

&&

$$

THE NATIONAL WEATHER SERVICE WANTS TO HEAR FROM YOU. 
PLEASE VISIT THE FOLLOWING LINK TO GIVE US FEEDBACK 
ON THE NEW BEACH HAZARDS STATEMENT: 

HTTP://WWW.NWS.NOAA.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS

HARRISON
2 follow-up statements
922 
WHUS46 KSGX 010740
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1240 AM PDT FRI MAY 1 2015

...LARGE SURF LIKELY SUNDAY THROUGH TUESDAY...

.A PAIR OF 3 TO 4 FOOT LONG-PERIOD SOUTH-SOUTHWEST SWELLS WILL
ARRIVE AT THE BEACHES BY LATE SATURDAY...PEAKING SUNDAY AND
MONDAY. THESE SWELLS WILL LOWER SLIGHTLY TUESDAY...WITH FURTHER
LOWERING WEDNESDAY INTO THE END OF NEXT WEEK. THESE SWELLS ARE
LIKELY TO PRODUCE LARGE SURF IN ORANGE COUNTY...AND LOCALLY HIGH
SURF IN NORTHERN SAN DIEGO COUNTY. POWERFUL RIP CURRENTS AND
LONG-SHORE CURRENTS AS WELL AS SOME BEACH EROSION ARE EXPECTED. THE
HIGH SURF AND STRONG CURRENTS WILL CREATE VERY DANGEROUS SWIMMING
CONDITIONS.

CAZ043-552-012000-
/O.CON.KSGX.BH.S.0006.150503T1200Z-150506T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
1240 AM PDT FRI MAY 1 2015

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE SATURDAY
NIGHT THROUGH TUESDAY EVENING...

* WAVES AND SURF...6 TO 10 FEET WITH 12 FOOT SETS ALONG ORANGE
  COUNTY BEACHES...AND LOCALLY ALONG SAN DIEGO COUNTY BEACHES FROM
  OCEANSIDE NORTHWARD.

* TIMING...SURF RISING LATE SATURDAY...PEAKING SUNDAY INTO 
  MONDAY...LOWERING VERY SLIGHTLY ON TUESDAY...THEN LOWERING 
  MORE SIGNIFICANTLY WEDNESDAY INTO THE END OF THE WORK WEEK. 

* IMPACTS...THE LARGE SURF AND POWERFUL RIP CURRENTS WILL 
  PRODUCE VERY DANGEROUS SWIMMING CONDITIONS. PEOPLE STANDING 
  TOO CLOSE TO THE WAVES CAN BE SWEPT OFF THEIR FEET AND 
  INJURED. LARGE WAVES CAN SWEEP PEOPLE OFF OF JETTIES AND WAVES 
  MAY WASH OVER SEA WALLS. BOATS MAY HAVE TROUBLE IN THE HIGH 
  SURF CONDITIONS. MODERATE BEACH EROSION LIKELY. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS STRONG
RIP CURRENTS...ELEVATED OR HIGH SURF HEIGHTS...MINOR TIDAL
OVERFLOW...OR LIGHTNING ARE POSSIBLE AT LOCAL BEACHES. OBEY
POSTED WARNING SIGNS AND FLAGS AND TALK TO A LIFEGUARD BEFORE
SWIMMING. USE CAUTION WHEN IN OR NEAR THE WATER AND ALWAYS SWIM
NEAR A LIFEGUARD.

&&

$$

SS

THE NATIONAL WEATHER SERVICE WANTS TO HEAR FROM YOU. 
PLEASE VISIT THE FOLLOWING LINK TO GIVE US FEEDBACK 
ON THE NEW BEACH HAZARDS STATEMENT: 

HTTP://WWW.NWS.NOAA.GOV/SURVEY/NWS-SURVEY.PHP?CODE=CHMBHS
352 
WHUS46 KSGX 011940
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1240 PM PDT FRI MAY 1 2015

...LARGE SURF FOR SUNDAY THROUGH TUESDAY...

.A PAIR OF 4 FOOT LONG-PERIOD SOUTH-SOUTHWEST SWELLS WILL ARRIVE
AT THE BEACHES BY LATE SATURDAY...PEAKING SUNDAY AND MONDAY. THESE
SWELLS WILL LOWER SLIGHTLY TUESDAY BUT HIGH SURF CONDITIONS WILL
LIKELY CONTINUE...WITH MORE SIGNIFICANT LOWERING OF SURF WEDNESDAY
INTO THE END OF NEXT WEEK. THESE SWELLS WILL PRODUCE LARGE SURF
IN ORANGE COUNTY...AND ALSO IN NORTHERN SAN DIEGO COUNTY.
POWERFUL RIP CURRENTS AND LONG-SHORE CURRENTS AS WELL AS SOME
BEACH EROSION ARE EXPECTED. THE HIGH SURF AND STRONG CURRENTS WILL
CREATE VERY DANGEROUS SWIMMING CONDITIONS.

CAZ043-552-020400-
/O.CAN.KSGX.BH.S.0006.150503T1200Z-150506T0600Z/
/O.NEW.KSGX.SU.Y.0003.150503T1200Z-150506T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
1240 PM PDT FRI MAY 1 2015

...HIGH SURF ADVISORY IN EFFECT FROM 5 AM SUNDAY TO 11 PM PDT
TUESDAY...
...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT FROM 5 AM SUNDAY TO 11 PM PDT
TUESDAY. THE BEACH HAZARDS STATEMENT HAS BEEN REPLACED WITH THE
HIGH SURF ADVISORY.

* WAVES AND SURF...6 TO 10 FEET WITH 12 FOOT SETS ALONG ORANGE
  COUNTY BEACHES...AND ALONG SAN DIEGO COUNTY BEACHES FROM
  OCEANSIDE NORTHWARD. LOCAL SURF 5 TO 8 FEET POSSIBLE BETWEEN
  POINT LOMA AND LA JOLLA.

* TIMING...SURF RISING LATE SATURDAY...PEAKING SUNDAY INTO 
  MONDAY...LOWERING VERY SLIGHTLY ON TUESDAY...THEN LOWERING 
  MORE SIGNIFICANTLY WEDNESDAY INTO THE END OF THE WORK WEEK. 

* TIDES...HIGHEST TIDES AT AROUND 5.7 TO 5.8 FEET BETWEEN AROUND 9
  TO 10 PM EACH EVENING. LOWEST TIDES AT AROUND 0 TO -1 FOOT
  BETWEEN ABOUT 330 TO 5 AM EACH EARLY MORNING. 

* IMPACTS...THE LARGE SURF AND POWERFUL RIP CURRENTS WILL PRODUCE
  EXTREMELY DANGEROUS SWIMMING CONDITIONS. PEOPLE STANDING TOO
  CLOSE TO THE WAVES CAN BE SWEPT OFF THEIR FEET AND INJURED.
  LARGE WAVES CAN SWEEP PEOPLE OFF OF JETTIES AND WAVES MAY WASH
  OVER SEA WALLS. BOATS MAY HAVE TROUBLE IN THE HIGH SURF
  CONDITIONS. MODERATE BEACH EROSION LIKELY. MINOR TIDAL FLOODING
  OF VULNERABLE LOW-LYING AREAS...SUCH AS SEAL AND SUNSET
  BEACHES...IS POSSIBLE DURING THE TIMES OF HIGHEST TIDE.

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. SWIMMERS ARE STRONGLY ENCOURAGED NOT TO ENTER THE WATER. 

&&

$$

HARRISON

Nearby

Beach Hazards Statements in California, 2015Every beach hazards statement in 2015

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.