Alert archive / California / Beach Hazards Statements in 2017

Beach Hazards Statement 16, NWS San Diego, CA

September 3, 2017Orange County, San Diego County, California

NWS San Diego, CA issued this beach hazards statement at Sep 3, 2017, 2:38 AM PDT for Orange County, San Diego County, California. It took effect at Sep 3, 2017, 8:00 AM PDT. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Sep 3, 2017, 2:38 AM PDT (09:38 UTC)
In effect from
Sep 3, 2017, 8:00 AM PDT
Expired
Sep 3, 2017, 6:48 PM PDT
In force
11 hr
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 09:39 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, 9.6 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 2017-09-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 519 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 2017-09-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
519 J/kg
Mixed-layer CIN
-209 J/kg
Mixed-layer LCL
2347 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
97 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

414 
WHUS46 KSGX 030938
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
238 AM PDT SUN SEP 3 2017

...SCATTERED THUNDERSTORMS TODAY AT THE BEACHES...

.WARM TROPICAL AIRMASS ASSOCIATED WITH THE REMNANTS OF TROPICAL 
STORM LIDIA WILL BRING INCLEMENT WEATHER TO THE BEACHES TODAY. 
THUNDERSTORMS WILL BE POSSIBLE JUST ABOUT ANY TIME TODAY AT THE 
BEACHES, WITH THE THREAT OF LIGHTNING, STRONG WINDS, AND HEAVY 
DOWNPOURS.

CAZ043-552-032100-
/O.NEW.KSGX.BH.S.0016.170903T1500Z-170904T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
238 AM PDT SUN SEP 3 2017

...BEACH HAZARDS STATEMENT IN EFFECT FROM 8 AM PDT THIS MORNING
THROUGH THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A BEACH
HAZARDS STATEMENT...WHICH IS IN EFFECT FROM 8 AM PDT THIS MORNING
THROUGH THIS EVENING. 

* THUNDERSTORMS...SCATTERED THUNDERSTORMS WILL BE NOTED TODAY AT
  THE BEACHES. THE BEST CHANCE FOR THUNDERSTORMS WILL BE THIS
  AFTERNOON, BUT COULD OCCUR ANYTIME TODAY. 

* IMPACTS...DEADLY LIGHTNING, HEAVY DOWNPOURS, STRONG WINDS WILL
  MAKE FOR ROUGH AND ERRATIC SURF CONDITIONS AND POSSIBLY FLYING
  OBJECTS AT THE BEACHES.

* TIMING...ACTIVITY WILL DIMINISH THIS EVENING.

 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
2 follow-up statements
766 
WHUS46 KSGX 032030
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
130 PM PDT SUN SEP 3 2017

...ISOLATED THUNDERSTORMS POSSIBLE AT THE BEACHES...

.A WARM TROPICAL AIRMASS ASSOCIATED WITH THE REMNANTS OF TROPICAL
STORM LIDIA WILL PRODUCE A SLIGHT CHANCE FOR A THUNDERSTORM AT THE
BEACHES TODAY.

CAZ043-552-040600-
/O.CON.KSGX.BH.S.0016.000000T0000Z-170904T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
130 PM PDT SUN SEP 3 2017

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 11 PM PDT THIS
EVENING...

* THUNDERSTORMS...THOUGH THE CHANCES FOR STORMS HAS DECREASED,
  THERE IS STILL A SMALL POTENTIAL FOR LIGHTNING AT THE BEACHES
  THIS AFTERNOON.

* IMPACTS...DEADLY LIGHTNING POSSIBLE.

* TIMING...ACTIVITY WILL CONTINUE TO DIMINISH THROUGH THIS 
  EVENING.

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.

&&

$$

ALBRIGHT
185 
WHUS46 KSGX 040148
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
648 PM PDT SUN SEP 3 2017

CAZ043-552-040300-
/O.CAN.KSGX.BH.S.0016.000000T0000Z-170904T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
648 PM PDT SUN SEP 3 2017

...BEACH HAZARDS STATEMENT IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE BEACH
HAZARDS STATEMENT. 

THE THREAT FOR THUNDERSTORMS HAS ENDED. THE BEACH HAZARD STATEMENT
THAT WAS IN EFFECT UNTIL 11 PM HAS BEEN CANCELLED. 

$$

MOEDE

The office that day

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

IssuedProductOfficeCountiesLasted
Sep 2, 5:29 PM PDTSevere Thunderstorm WarningSGXOrange, Riverside38 min
Sep 2, 9:10 PM PDTWind AdvisorySGXOrange, Riverside, San Bernardino, San Diego16 hr
Sep 3, 4:52 AM PDTHeat AdvisorySGXOrange9 hr
Sep 3, 3:41 PM PDTFlash Flood WarningSGXSan Bernardino3 hr

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.