Alert archive / California / Beach Hazards Statements in 2015

Beach Hazards Statement 21, NWS San Diego, CA

December 9, 2015Orange County, San Diego County, California

NWS San Diego, CA issued this beach hazards statement at Dec 9, 2015, 2:11 AM PST for Orange County, San Diego County, California. It took effect at Dec 11, 2015, 2:00 AM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 9, 2015, 2:11 AM PST (10:11 UTC)
In effect from
Dec 11, 2015, 2:00 AM PST
Expired
Dec 10, 2015, 1:37 AM PST
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 10:10 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 00:00Z, 10.2 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 00:00Z on 2015-12-09Temperature 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 00:00Z on 2015-12-09The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -14 square meters per square second.193958Sfc1 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
4052 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
-14 m²/s²
0-3 km storm-relative helicity
21 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.

499 
WHUS46 KSGX 091011
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
211 AM PST WED DEC 9 2015

...HIGH SURF FRIDAY THROUGH SUNDAY MORNING...

.A LARGE NORTHWEST SWELL WILL ARRIVE AT SOUTHERN CALIFORNIA
BEACHES EARLY FRIDAY MORNING. THIS SWELL WILL BRING HIGH SURF AND
STRONG RIP CURRENTS THROUGH SUNDAY MORNING. STRONG WINDS AND HIGH
TIDES FRIDAY AND SATURDAY MORNINGS WILL COMBINE WITH THE LARGE
SWELL TO THREATEN COASTAL FLOODING AND BEACH EROSION. THE SWELL
AND SURF WILL SUBSIDE ON SUNDAY.

CAZ043-552-092200-
/O.NEW.KSGX.BH.S.0021.151211T1000Z-151213T2200Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
211 AM PST WED DEC 9 2015

...BEACH HAZARDS STATEMENT IN EFFECT FROM EARLY FRIDAY MORNING THROUGH
SUNDAY MORNING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A BEACH
HAZARDS STATEMENT AS AN OUTLOOK FOR HIGH SURF.

* WAVES AND SURF...5 TO 8 FEET WITH OCCASIONAL SETS OF 10 TO 12
  FEET. HIGHEST SURF WILL BE IN NORTHERN ORANGE COUNTY AND
  SOUTHERN SAN DIEGO COUNTY...AND PEAK SURF IS EXPECTED FRIDAY
  AFTERNOON THROUGH SATURDAY MORNING.

* TIMING...EARLY FRIDAY MORNING THROUGH SUNDAY MORNING.

* TIDES...HIGH TIDES NEAR 7 FEET BETWEEN 8 AND 9 AM ON FRIDAY AND
  SATURDAY MORNINGS.

* IMPACTS...STRONG RIP CURRENTS AND BIG SURF WILL CREATE DANGEROUS
  SWIMMING CONDITIONS. WAVES MAY BREAK OVER JETTIES AND SEA WALLS.
  BEACH EROSION AND COASTAL FLOODING ARE POSSIBLE...PARTICULARLY
  DURING THE HIGH TIDES FRIDAY AND SATURDAY MORNINGS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS STRONG
RIP CURRENTS...ELEVATED 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.

STAY TUNED TO UPDATES FROM THE NATIONAL WEATHER SERVICE AS THE
HIGH SURF DEVELOPS.

&&

$$

MM
3 follow-up statements
841 
WHUS46 KSGX 092131
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
131 PM PST WED DEC 9 2015

...HIGH SURF FRIDAY THROUGH SUNDAY MORNING...

.A LARGE NORTHWEST SWELL IS EXPECTED TO ARRIVE AT SOUTHERN
CALIFORNIA BEACHES EARLY FRIDAY MORNING. THIS SWELL WILL BRING
HIGH SURF AND STRONG RIP CURRENTS THROUGH SUNDAY MORNING. STRONG
WINDS AND HIGH TIDES FRIDAY AND SATURDAY MORNINGS WILL COMBINE
WITH THE LARGE SWELL TO THREATEN COASTAL AREAS WITH COASTAL
FLOODING AND BEACH EROSION. THE SWELL AND SURF WILL SUBSIDE ON
SUNDAY.

CAZ043-552-100545-
/O.CON.KSGX.BH.S.0021.151211T1000Z-151213T2200Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
131 PM PST WED DEC 9 2015

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE THURSDAY
NIGHT THROUGH SUNDAY AFTERNOON...

* WAVES AND SURF...5 TO 8 FEET WITH OCCASIONAL SETS OF 10 TO 12 
  FEET. HIGHEST SURF WILL BE IN NORTHERN ORANGE COUNTY AND 
  SOUTHERN SAN DIEGO COUNTY...AND PEAK SURF IS EXPECTED FRIDAY 
  AFTERNOON THROUGH SATURDAY MORNING. 

* TIMING...EARLY FRIDAY MORNING THROUGH SUNDAY MORNING.

* TIDES...HIGH TIDES NEAR 7 FEET BETWEEN 8 AND 9 AM ON FRIDAY 
  AND SATURDAY MORNINGS. 

* IMPACTS...STRONG RIP CURRENTS AND BIG SURF WILL CREATE 
  DANGEROUS SWIMMING CONDITIONS. WAVES MAY BREAK OVER JETTIES 
  AND SEA WALLS. BEACH EROSION AND COASTAL FLOODING ARE 
  POSSIBLE... PARTICULARLY DURING THE HIGH TIDES FRIDAY AND 
  SATURDAY MORNINGS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS STRONG
RIP CURRENTS...ELEVATED 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.

STAY TUNED TO UPDATES FROM THE NATIONAL WEATHER SERVICE AS THE
HIGH SURF DEVELOPS.

&&

$$

SMALL

HTTP://WWW.WEATHER.GOV/SANDIEGO
678 
WHUS46 KSGX 100539
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
939 PM PST WED DEC 9 2015

...HIGH SURF FRIDAY THROUGH SUNDAY MORNING...

.A LARGE NORTHWEST SWELL WILL ARRIVE ALONG SOUTHERN CALIFORNIA
BEACHES EARLY FRIDAY MORNING. THIS SWELL WILL CREATE HIGH SURF
AND STRONG RIP CURRENTS THROUGH SUNDAY MORNING. STRONG WINDS AND
HIGH TIDES FRIDAY AND SATURDAY MORNINGS WILL COMBINE WITH THE
LARGE SURF TO THREATEN COASTAL AREAS WITH COASTAL FLOODING AND
BEACH EROSION. THE SWELL AND SURF WILL SUBSIDE ON SUNDAY.

CAZ043-552-101400-
/O.CON.KSGX.BH.S.0021.151211T1000Z-151213T2200Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
939 PM PST WED DEC 9 2015

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM LATE THURSDAY
NIGHT THROUGH SUNDAY AFTERNOON...

* SURF...5 TO 8 FEET WITH OCCASIONAL SETS OF 10 TO 12 FEET.
  HIGHEST SURF WILL BE IN NORTHERN ORANGE COUNTY AND SOUTHERN SAN
  DIEGO COUNTY...AND PEAK SURF IS EXPECTED FRIDAY AFTERNOON
  THROUGH SATURDAY MORNING.

* TIMING...EARLY FRIDAY MORNING THROUGH SUNDAY MORNING.

* TIDES...HIGH TIDES NEAR 7 FEET BETWEEN 8 AND 9 AM ON FRIDAY 
  AND SATURDAY MORNINGS. 

* IMPACTS...STRONG RIP CURRENTS AND BIG SURF WILL CREATE 
  DANGEROUS SWIMMING CONDITIONS. WAVES MAY BREAK OVER JETTIES 
  AND SEA WALLS. BEACH EROSION AND COASTAL FLOODING ARE 
  POSSIBLE... PARTICULARLY DURING THE HIGH TIDES FRIDAY AND 
  SATURDAY MORNINGS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A BEACH HAZARDS STATEMENT IS ISSUED WHEN THREATS SUCH AS STRONG
RIP CURRENTS...ELEVATED 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.

STAY TUNED TO UPDATES FROM THE NATIONAL WEATHER SERVICE AS THE
HIGH SURF DEVELOPS.

&&

$$

JJT

HTTP://WWW.WEATHER.GOV/SANDIEGO
719 
WHUS46 KSGX 100937
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
137 AM PST THU DEC 10 2015

...HIGH SURF AND MINOR COASTAL FLOODING TO END THE WEEK...

.A LARGE NW SWELL ARRIVING LATE TODAY THROUGH THE WEEKEND WILL
CREATE HIGH SURF ALONG THE SAN DIEGO AND ORANGE COUNTY
BEACHES...MAINLY NORTH OF NEWPORT BEACH AND SOUTH OF OCEANSIDE.
10 TO 12 FOOT SURF IS POSSIBLE DURING THE PERIOD. HIGH SURF WILL
CREATE STRONG RIP CURRENTS...AND MINOR BEACH EROSION.

BREEZY WEST WINDS...HIGH TIDES NEAR 7 FEET...AND HIGH SURF WILL
CREATE THE POSSIBILITY OF MINOR COASTAL FLOODING IN THE MORNINGS
FRIDAY THROUGH SUNDAY IN LOW-LYING AREAS ALONG THE BEACH.
CONDITIONS WILL TEMPORARILY IMPROVE SUNDAY BEFORE ANOTHER TROUGH
MOVES ACROSS THE REGION MONDAY.

CAZ043-552-101800-
/O.CAN.KSGX.BH.S.0021.151211T1000Z-151213T2200Z/
/O.NEW.KSGX.SU.Y.0008.151211T0000Z-151214T0000Z/
/O.NEW.KSGX.CF.Y.0003.151211T1100Z-151213T2000Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
137 AM PST THU DEC 10 2015

...HIGH SURF ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM
PST SUNDAY...
...COASTAL FLOOD ADVISORY IN EFFECT FROM 3 AM FRIDAY TO NOON PST
SUNDAY...
...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 PM
PST SUNDAY. A COASTAL FLOOD ADVISORY HAS ALSO BEEN ISSUED. THIS
COASTAL FLOOD ADVISORY IS IN EFFECT FROM 3 AM FRIDAY TO NOON PST
SUNDAY. THE BEACH HAZARDS STATEMENT HAS BEEN CANCELLED. 

* COASTAL FLOODING...LOW-LYING AREAS ALONG THE IMMEDIATE COAST.
  ESPECIALLY IN IMPERIAL BEACH...SOUTH MISSION BEACH...LA JOLLA
  SHORES...CARDIFF AND OCEANSIDE IN SAN DIEGO COUNTY AND NEWPORT
  BEACH...SEAL BEACH AND SUNSET BEACH IN ORANGE COUNTY.

* SURF...5 TO 9 FEET...WITH SETS OF 10 TO 12 FEET NORTH OF NEWPORT
  BEACH AND SOUTH OF OCEANSIDE. 3 TO 5 FEET ELSEWHERE. SURF WILL
  PEAK FRIDAY AFTERNOON THROUGH SATURDAY MORNING.

* LOCATIONS...COASTAL SAN DIEGO AND ORANGE COUNTIES.

* TIDES...HIGH TIDES NEAR 7 FEET BETWEEN 8 AND 10 AM FRIDAY
  THROUGH SUNDAY MORNINGS.

* IMPACTS...STRONG RIP CURRENTS AND LARGE SURF WILL CREATE
  DANGEROUS SWIMMING CONDITIONS AND MINOR BEACH EROSION. WAVES MAY
  BREAK OVER JETTIES AND SEA WALLS. MINOR COASTAL FLOODING IS
  POSSIBLE DURING THE HIGH TIDES FRIDAY THROUGH SUNDAY MORNINGS
  NEAR LOW-LYING AREAS ALONG THE BEACH.

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.

A COASTAL FLOOD ADVISORY INDICATES THAT ONSHORE WINDS AND TIDES
WILL COMBINE TO GENERATE FLOODING OF LOW AREAS ALONG THE SHORE.

&&

$$

JJT

HTTP://WWW.WEATHER.GOV/SANDIEGO

The office that day

Everything else NWS San Diego, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Dec 9, 2:02 AM PSTHigh Wind WatchSGXRiverside, San Diego24 hr

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.