Alert archive / California / Beach Hazards Statements in 2018

Beach Hazards Statement 14, NWS San Diego, CA

December 21, 2018Orange County, San Diego County, California

NWS San Diego, CA issued this beach hazards statement at Dec 21, 2018, 12:06 PM PST for Orange County, San Diego County, California. It was in force for 22 hr.

The area

The counties it named.

The facts

Issued
Dec 21, 2018, 12:06 PM PST (20:06 UTC)
Expired
Dec 22, 2018, 10:00 AM PST
In force
22 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 20:08 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, 8.1 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 2018-12-21Temperature 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 2018-12-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 55 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
2593 m above ground
0-6 km bulk shear
46 kt
0-1 km storm-relative helicity
55 m²/s²
0-3 km storm-relative helicity
98 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

741 
WHUS46 KSGX 212006
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
1206 PM PST Fri Dec 21 2018

...ELEVATED SURF, STRONG RIP CURRENTS AND MINOR COASTAL FLOODING
THIS AFTERNOON THROUGH THE WEEKEND...

.Very high tides are forecasted for this weekend along the coast,
which could create areas of coastal flooding, along with areas of
elevated surf and strong rip currents.

CAZ043-552-220715-
/O.EXP.KSGX.SU.Y.0010.000000T0000Z-181221T2000Z/
/O.NEW.KSGX.BH.S.0014.181221T2006Z-181222T1800Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
1206 PM PST Fri Dec 21 2018

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH SATURDAY MORNING...
...HIGH SURF ADVISORY HAS EXPIRED...

The National Weather Service in San Diego has issued a Beach
Hazards Statement...which is in effect through Saturday morning. 

* Surf...3 to 5 feet.

* Timing...Surf gradually subsiding Friday and threat of coast
  flooding diminishes after 10 AM Saturday.
 
* Impacts...Increased risk of drowning due to elevated surf and
  strong rip currents. Impacts to homes and businesses due to
  minor coastal flooding possible.

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.

&&

$$

APR

https://www.weather.gov/sandiego
3 follow-up statements
637 
WHUS46 KSGX 220527
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
927 PM PST Fri Dec 21 2018

...ELEVATED SURF, STRONG RIP CURRENTS AND MINOR COASTAL FLOODING
THROUGH THE WEEKEND...

.Very high tides are forecasted for this weekend along the coast,
which could create areas of coastal flooding, along with areas of
elevated surf and strong rip currents.

CAZ043-552-221400-
/O.CON.KSGX.BH.S.0014.000000T0000Z-181222T1800Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
927 PM PST Fri Dec 21 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH SATURDAY
MORNING...

* Surf...3 to 5 feet.

* Timing...Surf gradually subsiding Friday and threat of coast 
  flooding diminishes after 10 AM Saturday. 

* Impacts...Increased risk of drowning due to elevated surf and 
  strong rip currents. Impacts to homes and businesses due to 
  minor coastal flooding possible. 

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.

&&

$$

https://www.weather.gov/sandiego
326 
WHUS46 KSGX 221255
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
455 AM PST Sat Dec 22 2018

...ELEVATED SURF, STRONG RIP CURRENTS AND MINOR COASTAL FLOODING
THROUGH THE WEEKEND...

.High astronomical tides of 6.6 to 6.8 ft will occur each morning
this weekend. The combination of high tides and elevated surf will
lead to a threat of minor coastal flooding this morning. 

CAZ043-552-221800-
/O.CON.KSGX.BH.S.0014.000000T0000Z-181222T1800Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
455 AM PST Sat Dec 22 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* Surf...2 to 4 ft with sets to 5 ft.

* Timing...Through 10 AM this morning. While tides are higher on
  Sunday morning, surf will be lower. 

* Impacts...Increased risk of drowning due to elevated surf and
  strong rip currents. Minor flooding of low-lying beach areas possible
  due to tidal overflow.
  

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.

&&

$$

SS

https://www.weather.gov/sandiego
215 
WHUS46 KSGX 221753
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
953 AM PST Sat Dec 22 2018

CAZ043-552-221900-
/O.EXP.KSGX.BH.S.0014.000000T0000Z-181222T1800Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
953 AM PST Sat Dec 22 2018

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 10 AM PST THIS
MORNING...

Swell and surf have diminished today with coastal areas reporting
2-4 foot waves. This will cause the Beach Hazards Statement to 
expire at 10 AM this morning.

&&

$$

APR

https://www.weather.gov/sandiego

Nearby

Beach Hazards Statements in California, 2018Every beach hazards statement in 2018

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.