Alert archive / California / Beach Hazards Statements in 2022

Beach Hazards Statement 21, NWS San Diego, CA

December 12, 2022Orange County, San Diego County, California

NWS San Diego, CA issued this beach hazards statement at Dec 12, 2022, 5:11 AM PST for Orange County, San Diego County, California. It took effect at Dec 12, 2022, 6:00 AM PST. It was in force for 10 hr.

The area

The counties it named.

The facts

Issued
Dec 12, 2022, 5:11 AM PST (13:11 UTC)
In effect from
Dec 12, 2022, 6:00 AM PST
Expired
Dec 12, 2022, 4:00 PM PST
In force
10 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 13:14 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, 1.2 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 12:00Z on 2022-12-12Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 4 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 12:00Z on 2022-12-12The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 79 square meters per square second.1939587897117Sfc1 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
4 J/kg
Mixed-layer CIN
-22 J/kg
Mixed-layer LCL
810 m above ground
0-6 km bulk shear
68 kt
0-1 km storm-relative helicity
79 m²/s²
0-3 km storm-relative helicity
71 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

652 
WHUS46 KSGX 121311
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
511 AM PST Mon Dec 12 2022

CAZ043-552-130000-
/O.NEW.KSGX.BH.S.0021.221212T1400Z-221213T0000Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
511 AM PST Mon Dec 12 2022

...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Cloud to ground lightning expected.

* WHERE...San Diego County Coastal Areas and Orange County 
  Coastal Areas.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Isolated thunderstorms could bring cloud-to-ground
  lightning strikes at the beaches.

* ADDITIONAL DETAILS...Isolated thunderstorms will move onshore,
  impacting the beaches through this afternoon.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions due
to lightning.

&&

$$

Adams
1 follow-up statement
969 
WHUS46 KSGX 122028
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
1228 PM PST Mon Dec 12 2022

CAZ043-552-130000-
/O.CON.KSGX.BH.S.0021.000000T0000Z-221213T0000Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
1228 PM PST Mon Dec 12 2022

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...Isolated areas of cloud to ground lightning expected.

* WHERE...San Diego County Coastal Areas and Orange County 
  Coastal Areas.

* WHEN...Until 4 PM PST this afternoon.

* IMPACTS...Isolated thunderstorms could bring cloud-to-ground 
  lightning strikes at the beaches.

* ADDITIONAL DETAILS...Shower and storm activity will diminish
  this evening.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Remain out of the water to avoid hazardous swimming conditions.

&&

APR

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 12, 1:04 PM PSTFrost AdvisorySGXRiverside, San Bernardino, San Diego20 hr

Nearby

Beach Hazards Statements in California, 2022Every beach hazards statement in 2022

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.