Alert archive / California / Beach Hazards Statements in 2016

Beach Hazards Statement 31, NWS San Diego, CA

October 24, 2016Orange County, California

NWS San Diego, CA issued this beach hazards statement at Oct 24, 2016, 10:30 AM PDT for Orange County, California. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Oct 24, 2016, 10:30 AM PDT (17:30 UTC)
Expired
Oct 24, 2016, 5:00 PM PDT
In force
7 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 17:33 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, 5.5 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 12:00Z on 2016-10-24Temperature 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 2016-10-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 113 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
2400 m above ground
0-6 km bulk shear
44 kt
0-1 km storm-relative helicity
113 m²/s²
0-3 km storm-relative helicity
147 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.3

Open this sounding in Storm Lab

The text

As transmitted.

643 
WHUS46 KSGX 241730
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1030 AM PDT MON OCT 24 2016

...BEACH LIGHTNING POSSIBLE FOR ORANGE COUNTY THROUGH EARLY
AFTERNOON...

CAZ552-242000-
/O.NEW.KSGX.BH.S.0031.161024T1730Z-161024T2000Z/
ORANGE COUNTY COASTAL AREAS-
1030 AM PDT MON OCT 24 2016

...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 1 PM PDT THIS
AFTERNOON...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A BEACH
HAZARDS STATEMENT FOR LIGHTNING...WHICH IS IN EFFECT UNTIL 1 PM
PDT THIS AFTERNOON.

BANDS OF SHOWERS AND THUNDERSTORMS WILL MOVE ASHORE THROUGH 1 PM THIS
AFTERNOON. LIGHTNING STRIKES ARE POSSIBLE MAINLY ALONG ORANGE
COUNTY BEACHES THROUGH THIS PERIOD. THUNDERSTORM CHANCES WILL
DECREASE THROUGH THIS AFTERNOON AND EVENING.

* IMPACTS...CLOUD TO GROUND LIGHTNING. SEEK SAFE SHELTER AS
  THUNDERSTORMS MOVE ASHORE. 

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.

&&

$$

TS

HTTP://WWW.WEATHER.GOV/SANDIEGO
1 follow-up statement
794 
WHUS46 KSGX 241738
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1038 AM PDT MON OCT 24 2016

...BEACH LIGHTNING POSSIBLE FOR ORANGE COUNTY THROUGH EARLY
EVENING...

CAZ552-250000-
/O.EXT.KSGX.BH.S.0031.000000T0000Z-161025T0000Z/
ORANGE COUNTY COASTAL AREAS-
1038 AM PDT MON OCT 24 2016

...BEACH HAZARDS STATEMENT NOW IN EFFECT UNTIL 5 PM PDT THIS
AFTERNOON...

BANDS OF SHOWERS AND THUNDERSTORMS WILL MOVE ASHORE THROUGH 1 PM
THIS AFTERNOON. LIGHTNING STRIKES ARE POSSIBLE MAINLY ALONG
ORANGE COUNTY BEACHES THROUGH THIS PERIOD. THUNDERSTORM CHANCES
WILL CONTINUE THROUGH THIS AFTERNOON...DECREASING THIS EVENING.

* IMPACTS...CLOUD TO GROUND LIGHTNING. SEEK SAFE SHELTER AS 
  THUNDERSTORMS MOVE ASHORE. 

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.

&&

$$

TS
HTTP://WWW.WEATHER.GOV/SANDIEGO

The office that day

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

IssuedProductOfficeCountiesLasted
Oct 24, 4:45 AM PDTBeach Hazards StatementSGXOrange, San Diego2 hr
Oct 24, 7:34 AM PDTBeach Hazards StatementSGXSan Diego26 min
Oct 24, 11:28 AM PDTAreal Flood AdvisorySGXOrange2 hr

Nearby

Beach Hazards Statements in California, 2016Every beach hazards statement in 2016

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.