Alert archive / California / Beach Hazards Statements in 2015

Beach Hazards Statement 16, NWS San Diego, CA

September 8, 2015Orange County, California

NWS San Diego, CA issued this beach hazards statement at Sep 8, 2015, 12:39 AM PDT for Orange County, California. It was in force for 19 hr.

The area

The counties it named.

The facts

Issued
Sep 8, 2015, 12:39 AM PDT (07:39 UTC)
Expired
Sep 8, 2015, 8:00 PM PDT
In force
19 hr
Issued by
NWS San Diego, CA

County Orange County, CA

The radar

The Santa Ana Mts radar (KSOX), 20 km from the middle of the area, began a volume at 07:41 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, 7.7 hours before the alert went out and 111 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 2015-09-08Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 117 joules per kilogram.LCLLFCEL10008507005003002001001 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 2015-09-08The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 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
117 J/kg
Mixed-layer CIN
-409 J/kg
Mixed-layer LCL
1810 m above ground
0-6 km bulk shear
28 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
33 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.

214 
WHUS46 KSGX 080739
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1239 AM PDT TUE SEP 8 2015

...LARGE SURF AND STRONG RIP CURRENTS IN ORANGE COUNTY TODAY...

..A LONG-PERIOD SOUTHWEST SWELL WILL CONTINUE TO BRING LARGE SURF
AND STRONG RIP CURRENTS IN ORANGE COUNTY THAT WILL GRADUALLY
DECREASE TODAY.

CAZ552-080845-
/O.CAN.KSGX.SU.Y.0004.000000T0000Z-150909T0300Z/
/O.NEW.KSGX.BH.S.0016.150908T0739Z-150909T0300Z/
ORANGE COUNTY COASTAL AREAS-
1239 AM PDT TUE SEP 8 2015

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING...
...HIGH SURF ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A BEACH
HAZARDS STATEMENT FOR THE BEACHES OF ORANGE COUNTY...WHICH IS IN
EFFECT THROUGH THIS EVENING. THE HIGH SURF ADVISORY HAS BEEN
CANCELLED.

* SURF...4 TO 6 FEET. SETS TO 8 FEET AT THE WEDGE.

* HAZARDS...LARGE SURF AND STRONG RIP CURRENTS.

* TIMING...SLOWLY SUBSIDING TODAY.

* TIDES...HIGH TIDE OF 4.3 FEET AT 8 AM. LOW TIDE OF 2.1 FEET AT
  1 PM. HIGH TIDE OF 5.5 FEET AT 7 PM.

* POTENTIAL IMPACTS...HAZARDOUS SWIMMING CONDITIONS FOR
  INEXPERIENCED SWIMMERS.

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.

&&

$$

CAZ043-080845-
/O.CAN.KSGX.SU.Y.0004.000000T0000Z-150909T0300Z/
SAN DIEGO COUNTY COASTAL AREAS-
1239 AM PDT TUE SEP 8 2015

...HIGH SURF ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE HIGH
SURF ADVISORY. 

$$

MM
2 follow-up statements
800 
WHUS46 KSGX 080902
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
202 AM PDT TUE SEP 8 2015

...LARGE SURF AND STRONG RIP CURRENTS MAINLY IN ORANGE COUNTY
TODAY...

..A LONG-PERIOD SOUTHWEST SWELL WILL CONTINUE TO BRING LARGE SURF
AND STRONG RIP CURRENTS TODAY MAINLY TO ORANGE COUNTY. SURF WILL
GRADUALLY DECREASE DURING THE DAY.

CAZ552-082100-
/O.CON.KSGX.BH.S.0016.000000T0000Z-150909T0300Z/
ORANGE COUNTY COASTAL AREAS-
202 AM PDT TUE SEP 8 2015

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH THIS
EVENING...

* SURF...4 TO 6 FEET BECOMING 3 TO 5 FEET. SETS TO 8 FEET AT THE
  WEDGE.

* HAZARDS...LARGE SURF AND STRONG RIP AND LONGSHORE CURRENTS.

* TIDES...HIGH TIDE OF 4.3 FEET AT 8 AM. LOW TIDE OF 2.1 FEET AT 
  1 PM. HIGH TIDE OF 5.5 FEET AT 7 PM. 

* POTENTIAL IMPACTS...HAZARDOUS SWIMMING CONDITIONS FOR 
  INEXPERIENCED SWIMMERS. 

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.

&&

$$

MM
619 
WHUS46 KSGX 090238
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
738 PM PDT TUE SEP 8 2015

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 8 PM...

CAZ552-090345-
/O.EXP.KSGX.BH.S.0016.000000T0000Z-150909T0300Z/
ORANGE COUNTY COASTAL AREAS-
738 PM PDT TUE SEP 8 2015

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 8 PM PDT THIS EVENING...

.THE LONG PERIOD SOUTHWEST SWELL WILL DIMINISH TONIGHT AND
WEDNESDAY. A NEW SOUTH-SOUTHEAST SWELL FROM HURRICANE LINDA WILL
MOVE INTO THE COASTAL WATERS WEDNESDAY NIGHT AND THURSDAY. THIS
SWELL WILL BRING ELEVATED SURF PRIMARILY TO ORANGE COUNTY...AND
BYPASS MOST OF SAN DIEGO. 

$$

MOEDE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 7, 9:22 PM PDTFlash Flood WatchSGXRiverside, San Bernardino, San Diego71 hr
Sep 8, 1:31 PM PDTFlash Flood WarningSGXSan Diego3 hr
Sep 8, 1:50 PM PDTSpecial Weather StatementSGXSan Diego55 min
Sep 8, 2:29 PM PDTFlash Flood WarningSGXSan Bernardino4 hr
Sep 8, 2:49 PM PDTSevere Thunderstorm WarningSGXSan Diego56 min
Sep 8, 2:59 PM PDTFlash Flood WarningSGXSan Diego3 hr
Sep 8, 4:19 PM PDTFlash Flood WarningSGXRiverside3 hr
Sep 8, 4:35 PM PDTSevere Thunderstorm WarningSGXRiverside55 min
Sep 8, 4:37 PM PDTFlash Flood WarningSGXRiverside, San Bernardino4 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.