Alert archive / California / Beach Hazards Statements in 2020

Beach Hazards Statement 9, NWS San Diego, CA

December 2, 2020Orange County, San Diego County, California

NWS San Diego, CA issued this beach hazards statement at Dec 2, 2020, 5:06 PM PST for Orange County, San Diego County, California. It took effect at Dec 3, 2020, 4:00 PM PST. It was in force for 36 hr.

The area

The counties it named.

The facts

Issued
Dec 2, 2020, 5:06 PM PST (01:06 UTC)
In effect from
Dec 3, 2020, 4:00 PM PST
Expired
Dec 5, 2020, 4:00 AM PST
In force
36 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 01:08 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 00:00Z, 1.1 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 00:00Z on 2020-12-03Temperature 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 00:00Z on 2020-12-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 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
4169 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
26 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

590 
WHUS46 KSGX 030106
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
506 PM PST Wed Dec 2 2020

...ELEVATED TO HIGH SURF LATE THURSDAY THROUGH FRIDAY...

.Fresh long period northwest swell will generate widespread
elevated surf at the beaches beginning late Thursday, with locally
high surf for some San Diego County beaches. This will lead to a
high risk of rip currents and dangerous swimming conditions.

CAZ043-552-031400-
/O.NEW.KSGX.BH.S.0009.201204T0000Z-201205T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
506 PM PST Wed Dec 2 2020

...BEACH HAZARDS STATEMENT IN EFFECT FROM THURSDAY AFTERNOON
THROUGH LATE FRIDAY NIGHT...

The National Weather Service in San Diego has issued a Beach
Hazards Statement...which is in effect from Thursday afternoon
through late Friday night. 

* Waves and Surf...4 to 7 feet in San Diego County, with highest
  sets in the southern half of the county that may near 8 feet on
  Friday. Sets of 3 to 6 feet can be expected for Orange County 
  beaches.

* Timing...Thursday evening through Saturday morning, with highest
  surf on Friday.

* Impacts...High risk of rip currents, and dangerous swimming
  conditions.

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.

&&

$$

Rodriguez

https://www.weather.gov/sandiego
6 follow-up statements
926 
WHUS46 KSGX 030936
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
136 AM PST Thu Dec 3 2020

...ELEVATED TO HIGH SURF LATE TODAY THROUGH FRIDAY NIGHT...

.Fresh long-period northwest swell will generate widespread 
elevated surf beginning late today, with locally high surf for 
some beaches in southern San Diego County. This will lead to a 
high rip current risk and dangerous swimming conditions.

CAZ043-552-032215-
/O.CON.KSGX.BH.S.0009.201204T0000Z-201205T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
136 AM PST Thu Dec 3 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM THIS AFTERNOON
THROUGH LATE FRIDAY NIGHT...

* Waves and Surf...4 to 7 feet in San Diego County, with sets to 8
  feet south of La Jolla. Surf of 3 to 6 feet can be expected for
  Orange County beaches.

* Timing...This afternoon through late Friday night. Highest surf
  on Friday.

* Impacts...High rip current risk and dangerous swimming 
  conditions.

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.

&&

$$
218 
WHUS46 KSGX 032011
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
1211 PM PST Thu Dec 3 2020

...ELEVATED TO HIGH SURF THROUGH FRIDAY NIGHT...

.A fresh long-period northwest swell will generate widespread 
elevated surf late today through Friday, highest in southern San 
Diego County. There will be high rip current risk with this 
swell.


CAZ043-552-040600-
/O.CON.KSGX.BH.S.0009.201204T0000Z-201205T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
1211 PM PST Thu Dec 3 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT FROM 4 PM PST THIS
AFTERNOON THROUGH LATE FRIDAY NIGHT...

* Waves and Surf...4 to 7 feet in San Diego County, with sets to 8
  feet south of La Jolla on Friday. Surf of 3 to 6 feet at Orange
  County beaches. 

* Timing...Late today through Friday night. Highest surf on  
  Friday.

* Impacts...High rip current risk and dangerous swimming  
  conditions. 

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. 

&&

$$

Moede
084 
WHUS46 KSGX 040933
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
133 AM PST Fri Dec 4 2020

...ELEVATED TO HIGH SURF THROUGH TONIGHT...

.A fresh long-period northwest swell will generate widespread
elevated surf today and tonight, highest in southern San Diego 
County. There will be high rip current risk with this swell.

CAZ043-552-042200-
/O.CON.KSGX.BH.S.0009.000000T0000Z-201205T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
133 AM PST Fri Dec 4 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

* Waves and Surf...4 to 7 feet in San Diego County, with sets to 8
  feet south of La Jolla. Surf of 3 to 6 feet at Orange County 
  beaches. 

* Timing...Through tonight.  

* Impacts...High rip current risk and dangerous swimming 
  conditions. 

* Outlook...Surf will gradually decline Saturday, but higher surf
  and rip currents will be likely again around the middle of next
  week.

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.

&&

$$

Maxwell
974 
WHUS46 KSGX 042112
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
112 PM PST Fri Dec 4 2020

...ELEVATED TO HIGH SURF THROUGH TONIGHT...

.A fresh long-period northwest swell will generate widespread
elevated surf today and tonight, highest in southern San Diego
County. There will be high rip current risk with this swell.

CAZ043-552-050600-
/O.CON.KSGX.BH.S.0009.000000T0000Z-201205T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
112 PM PST Fri Dec 4 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT THROUGH LATE
TONIGHT...

* Waves and Surf...4 to 7 feet in San Diego County. Surf of 3 to 
  6 feet at Orange County beaches. 

* Timing...Through tonight.

* Impacts...High rip current risk and dangerous swimming 
  conditions. 

* Outlook...Surf will gradually decline Saturday, but higher 
  surf and rip currents will be likely again around the middle 
  of next week. 

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.

&&

$$


https://www.weather.gov/sandiego
284 
WHUS46 KSGX 050527
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
927 PM PST Fri Dec 4 2020

...ELEVATED TO HIGH SURF THROUGH EARLY SATURDAY MORNING...

.A fresh long-period northwest swell will generate widespread
elevated surf into early Saturday morning, highest in southern 
San Diego County. There will be high rip current risk with this 
swell.

CAZ043-552-051200-
/O.CON.KSGX.BH.S.0009.000000T0000Z-201205T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
927 PM PST Fri Dec 4 2020

...BEACH HAZARDS STATEMENT REMAINS IN EFFECT UNTIL 4 AM PST
SATURDAY...

* Waves and Surf...4 to 7 feet in San Diego County. Surf of 3 to 5 
  feet at Orange County beaches. 

* Timing...Through early Saturday morning.

* Impacts...High rip current risk and dangerous swimming 
  conditions. 

* Outlook...Surf will gradually decline Saturday, but higher 
  surf and rip currents will be likely again around the middle 
  of next week. 

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.

&&

$$


https://www.weather.gov/sandiego
508 
WHUS46 KSGX 051154
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
354 AM PST Sat Dec 5 2020

CAZ043-552-051300-
/O.EXP.KSGX.BH.S.0009.000000T0000Z-201205T1200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
354 AM PST Sat Dec 5 2020

...BEACH HAZARDS STATEMENT WILL EXPIRE AT 4 AM PST EARLY THIS
MORNING...

Surf will gradually decline today, though some local sets to 6
feet could occur this morning in central and southern San Diego
COunty. Higher surf and strong rip currents will be likely again 
around the middle of next week.

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.

&&

$$

Maxwell

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 2, 9:32 PM PSTWind AdvisorySGXSan Diego18 hr

Nearby

Beach Hazards Statements in California, 2020Every beach hazards statement in 2020

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.