Alert archive / California / Beach Hazards Statements in 2018

Beach Hazards Statement 13, NWS San Diego, CA

December 14, 2018Orange County, San Diego County, California

NWS San Diego, CA issued this beach hazards statement at Dec 14, 2018, 1:13 PM PST for Orange County, San Diego County, California. It took effect at Dec 17, 2018, 8:00 AM PST. It was in force for .

The area

The counties it named.

The facts

Issued
Dec 14, 2018, 1:13 PM PST (21:13 UTC)
In effect from
Dec 17, 2018, 8:00 AM PST
Expired
Dec 15, 2018, 1:03 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 21:12 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, 9.2 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 2018-12-14Temperature 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 2018-12-14The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 34 square meters per square second.193958Sfc1 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
4881 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
34 m²/s²
0-3 km storm-relative helicity
69 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

221 
WHUS46 KSGX 142113
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
113 PM PST Fri Dec 14 2018


.A large, long period northwest swell from 290 degrees will move
into the coastal waters early Monday. This will create high surf
and strong rip currents across the area Monday morning through 
Tuesday evening. Swell and surf expected to gradually lower late 
Tuesday.


CAZ043-552-150515-
/O.NEW.KSGX.BH.S.0013.181217T1600Z-181219T0600Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
113 PM PST Fri Dec 14 2018

...BEACH HAZARDS STATEMENT IN EFFECT FROM MONDAY MORNING THROUGH
TUESDAY EVENING...

The National Weather Service in San Diego has issued a Beach
Hazards Statement...which is in effect from Monday morning
through Tuesday evening. 

* Waves and Surf...5 to 8 ft in Orange County. 6 to 10 ft in San 
  Diego County. Locally higher sets are possible at all beaches. 

* Timing...Elevated surf expected to begin Monday morning, peaking
  late Monday into early Tuesday. Surf will begin to lower Tuesday
  evening. 

* Impacts...Increased risk of drowning due to elevated surf and
  strong rip currents. Sneaker waves and other hazards can create
  life-threatening conditions in the surf zone. 

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.

&&

$$

Connolly

https://www.weather.gov/sandiego
2 follow-up statements
893 
WHUS46 KSGX 150554
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
954 PM PST Fri Dec 14 2018

.A large, long period west-northwest swell from 290 degrees will 
move into the coastal waters early Monday. This will create high 
surf and strong rip currents across the area Monday morning 
through Tuesday evening. Swell and surf expected to gradually 
lower late Tuesday.

CAZ043-552-152200-
/O.CON.KSGX.BH.S.0013.181217T1600Z-181219T0600Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
954 PM PST Fri Dec 14 2018

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM MONDAY MORNING
THROUGH TUESDAY EVENING...

* Waves and Surf...5 to 8 ft in Orange County. 6 to 10 ft in San
  Diego County. Local sets to 12 ft or higher possible south of
  Del Mar late Monday through Tuesday morning.

* Timing...Surf increasing Monday morning, peaking late Monday 
  into early Tuesday. Surf will begin to lower Tuesday evening. 

* Impacts...Increased risk of drowning due to elevated surf and 
  strong rip currents. Sneaker waves and other hazards can 
  create life-threatening conditions in the surf zone. 

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
729 
WHUS46 KSGX 152103
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
103 PM PST Sat Dec 15 2018

...HIGH SURF MONDAY THROUGH TUESDAY...

.A large, long-period west-northwest swell from 290 degrees will
move into the coastal waters early Monday. This will create high
surf and strong rip currents in San Diego and Orange Counties
Monday morning through Tuesday evening. Minor coastal flooding
will be possible in low-lying coastal areas as well during high 
tides. Swell and surf will gradually lower late Tuesday.

CAZ043-552-160600-
/O.CAN.KSGX.BH.S.0013.181217T1600Z-181219T0600Z/
/O.NEW.KSGX.SU.Y.0010.181217T1600Z-181219T0600Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
103 PM PST Sat Dec 15 2018

...HIGH SURF ADVISORY IN EFFECT FROM 8 AM MONDAY TO 10 PM PST
TUESDAY...
...BEACH HAZARDS STATEMENT IS CANCELLED...

The National Weather Service in San Diego has issued a High Surf
Advisory, which is in effect from 8 AM Monday to 10 PM PST 
Tuesday. The Beach Hazards Statement has been cancelled. 

* Waves and Surf...6 to 9 ft in Orange County. 7 to 11 ft in San
  Diego County. Local sets to 13 ft possible south of Del Mar 
  late Monday through Tuesday morning. 

* Timing...Surf increasing Monday morning, peaking late Monday
  into early Tuesday. Surf will begin to lower Tuesday afternoon.
 
* Tides...

  La Jolla: Highest tide 4.7 feet at 5:07 AM Monday
            Highest tide 5.1 feet at 5:38 AM Monday

* Impacts...Increased risk of drowning due to elevated surf and
  strong rip currents. Sneaker waves and other hazards can create
  life-threatening conditions in the surf zone. Minor coastal
  flooding during early morning high tides and minor beach 
  erosion are possible.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A High Surf Advisory means that high surf will affect beaches in
the advisory area...producing localized beach erosion and
dangerous swimming conditions.

&&

$$

Maxwell

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.