Alert archive / California / Beach Hazards Statements in 2017

Beach Hazards Statement 2, NWS San Diego, CA

January 18, 2017Orange County, San Diego County, California

NWS San Diego, CA issued this beach hazards statement at Jan 18, 2017, 5:00 AM PST for Orange County, San Diego County, California. It took effect at Jan 19, 2017, 10:00 AM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Jan 18, 2017, 5:00 AM PST (13:00 UTC)
In effect from
Jan 19, 2017, 10:00 AM PST
Expired
Jan 18, 2017, 1:56 PM 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 12:58 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, 1.0 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 2017-01-18Temperature 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 2017-01-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 square meters per square second.1939587897Sfc1 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
730 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

759 
WHUS46 KSGX 181300
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
500 AM PST WED JAN 18 2017

...SERIES OF STRONG PACIFIC STORMS TO BRING HIGH SURF THURSDAY
THROUGH THE WEEKEND...

...POTENTIAL FOR DAMAGING SURF AND COASTAL FLOODING FRIDAY THROUGH
SATURDAY...

.A SERIES OF STRONG PACIFIC STORM SYSTEMS WILL GENERATE HIGH SURF
CONDITIONS AT THE BEACHES BEGINNING THURSDAY...AND CONTINUING AT
TIMES THROUGH MONDAY NIGHT. THE HIGHEST SURF...POSSIBLY UP TO 16
FEET...WILL COME FRIDAY THROUGH SATURDAY...SUBSIDING SUNDAY...AND
THEN HIGHER SURF CONDITIONS POSSIBLE AGAIN MONDAY WITH THE FINAL
STORM PASSAGE. DAMAGING SURF...COASTAL EROSION AND FLOODING WILL
BE POSSIBLE FRIDAY THROUGH SATURDAY.

CAZ043-552-182200-
/O.NEW.KSGX.BH.S.0002.170119T1800Z-170124T1100Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
500 AM PST WED JAN 18 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM THURSDAY MORNING
THROUGH LATE MONDAY NIGHT...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A BEACH
HAZARDS STATEMENT FOR AN EXTENDED PERIOD OF HIGH SURF...WHICH IS
IN EFFECT FROM THURSDAY MORNING THROUGH LATE MONDAY NIGHT.

* WAVES AND SURF...HIGH SURF AROUND 7 FEET DEVELOPING
  THURSDAY...THEN INCREASING ON FRIDAY TO 10 TO 16 FEET. SURF
  SUBSIDING ON SUNDAY THEN INCREASING AGAIN ON MONDAY.

* IMPACTS...HIGH SURF WILL BRING VERY HAZARDOUS SWIMMING
  CONDITIONS TO THE BEACHES THURSDAY THROUGH MONDAY. HIGH SURF CAN
  SUDDENLY WASH PEOPLE OFF JETTIES AND ROCKS. IN ADDITION...LARGE
  AND POTENTIALLY DAMAGING SURF WILL BE POSSIBLE FRIDAY THROUGH
  SATURDAY...CREATING THE POTENTIAL FOR COASTAL EROSION AND
  COASTAL FLOODING...WITH POSSIBLE DAMAGE TO COASTAL STRUCTURES
  SUCH AS PIERS. COASTAL FLOODING WILL BE MOST LIKELY DURING TIMES
  OF HIGH TIDE. FREQUENT STRONG RIP CURRENTS AND LONG-SHORE
  CURRENTS ARE ALSO LIKELY.

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.

&&

$$

JMB

WEATHER.GOV/SANDIEGO
1 follow-up statement
863 
WHUS46 KSGX 182156
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
156 PM PST WED JAN 18 2017

...BEACH HAZARD STATEMENT UPGRADED TO A HIGH SURF WARNING FOR SAN
DIEGO AND ORANGE COUNTY BEACHES...

.A SERIES OF STRONG PACIFIC STORM SYSTEMS WILL GENERATE HIGH SURF
CONDITIONS AT THE BEACHES BEGINNING THURSDAY...THEN EVEN LARGER
AND DAMAGING SURF FRIDAY AND SATURDAY. SURF WILL LOWER SLIGHTLY ON
SUNDAY...THEN INCREASE AGAIN MONDAY INTO TUESDAY. DAMAGING
SURF...COASTAL EROSION AND FLOODING WILL BE POSSIBLE MAINLY FRIDAY
THROUGH SATURDAY. SURF WILL LOWER BY THE MIDDLE OF NEXT WEEK.

CAZ043-552-190600-
/O.CAN.KSGX.BH.S.0002.170119T1800Z-170124T1100Z/
/O.NEW.KSGX.SU.W.0001.170120T0000Z-170125T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
156 PM PST WED JAN 18 2017

...HIGH SURF WARNING IN EFFECT FROM 4 PM THURSDAY TO 10 PM PST
TUESDAY...
...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A HIGH SURF
WARNING...WHICH IS IN EFFECT FROM 4 PM THURSDAY TO 10 PM PST
TUESDAY. THE BEACH HAZARDS STATEMENT HAS BEEN CANCELLED. 

* CHANGES SINCE LAST ISSUANCE...BEACH HAZARD STATEMENT UPGRADED TO
  A HIGH SURF WARNING.

* SURF...HIGH SURF AROUND 7 FEET DEVELOPING LATE THURSDAY
  AFTERNOON...THEN INCREASING ON FRIDAY TO 10 TO 16 FEET. SURF
  SUBSIDING ON SUNDAY TO 4 TO 8 FT...THEN INCREASING AGAIN ON
  MONDAY TO 9 TO 12 FT. SURF WILL SLOWLY LOWER THROUGHOUT THE DAY
  TUESDAY.

* TIDES...HIGHEST TIDE DURING HIGHEST SURF WILL BE AT 435 AM
  SATURDAY AT 4.6 FT IN LA JOLLA.

* IMPACTS...HIGH SURF WILL CREATE VERY HAZARDOUS SWIMMING
  CONDITIONS TO THE BEACHES THURSDAY THROUGH TUESDAY. HIGH SURF
  CAN SUDDENLY WASH PEOPLE OFF JETTIES AND ROCKS. IN ADDITION...
  LARGE AND POTENTIALLY DAMAGING SURF WILL BE POSSIBLE FRIDAY
  THROUGH SATURDAY AND AGAIN MONDAY INTO TUESDAY...CREATING THE
  POTENTIAL FOR COASTAL EROSION AND COASTAL FLOODING...WITH
  POSSIBLE DAMAGE TO COASTAL STRUCTURES SUCH AS PIERS. COASTAL
  FLOODING WILL BE MOST LIKELY DURING TIMES OF HIGH TIDE. FREQUENT
  STRONG RIP CURRENTS ARE ALSO LIKELY.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVE
WILL POUND THE SHORELINE. THIS WILL RESULT IN VERY DANGEROUS
SWIMMING CONDITIONS...AND DEADLY RIP CURRENTS.

&&

$$

JJT

HTTP://WWW.WEATHER.GOV/SANDIEGO

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 17, 9:52 PM PSTWinter Storm WatchSGXRiverside, San Bernardino16 hr
Jan 17, 9:52 PM PSTWinter Weather AdvisorySGXRiverside, San Bernardino16 hr
Jan 17, 9:58 PM PSTHigh Wind WatchSGXRiverside, San Bernardino, San Diego41 hr
Jan 17, 9:58 PM PSTWind AdvisorySGXRiverside, San Bernardino, San Diego4 days
Jan 18, 5:29 AM PSTGale WatchSGX21 hr
Jan 18, 5:29 AM PSTSmall Craft AdvisorySGX53 hr
Jan 18, 1:31 PM PSTWinter Storm WarningSGXRiverside, San Bernardino, San Diego64 hr
Jan 18, 1:56 PM PSTHigh Surf WarningSGXOrange, San Diego5 days

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.