Alert archive / California / High Surf Advisories in 2018

High Surf Advisory 9, NWS San Diego, CA

November 27, 2018Orange County, San Diego County, California

NWS San Diego, CA issued this high surf advisory at Nov 27, 2018, 1:41 AM PST for Orange County, San Diego County, California. It took effect at Nov 28, 2018, 2:00 AM PST. It was in force for 3 days.

The area

The counties it named.

The facts

Issued
Nov 27, 2018, 1:41 AM PST (09:41 UTC)
In effect from
Nov 28, 2018, 2:00 AM PST
Expired
Dec 1, 2018, 1:16 PM PST
In force
3 days
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 09:45 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, 9.7 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 2018-11-27Temperature 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°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 00:00Z on 2018-11-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 12 square meters per square second.19395878Sfc1 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
2533 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
12 m²/s²
0-3 km storm-relative helicity
31 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

357 
WHUS46 KSGX 270941
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
141 AM PST Tue Nov 27 2018

...High Surf Wednesday into the Weekend...

.Large west-northwest swell with a long period will arrive at the
beaches Wednesday and continue through Friday in Orange County 
and through Saturday in San Diego County. This swell will produce
high surf and strong rip currents, leading to hazardous swimming
conditions. Swell and surf will gradually subside over the
weekend.

CAZ043-272200-
/O.CAN.KSGX.BH.S.0011.181127T2000Z-181201T0600Z/
/O.NEW.KSGX.SU.Y.0009.181128T1000Z-181202T0400Z/
San Diego County Coastal Areas-
141 AM PST Tue Nov 27 2018

...HIGH SURF ADVISORY IN EFFECT FROM 2 AM WEDNESDAY TO 8 PM PST
SATURDAY...

The National Weather Service in San Diego has issued a High Surf
Advisory...which is in effect from 2 AM Wednesday to 8 PM PST
Saturday.

* Surf...6-10 feet, with isolated sets to 12 feet in southern San
  Diego County.

* Timing...Surf to build tonight and Wednesday, peak Thursday 
  into Friday morning, and taper off later Friday and Saturday. 

* 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 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.

&&

$$

CAZ552-272200-
/O.CAN.KSGX.BH.S.0011.181127T2000Z-181201T0600Z/
/O.NEW.KSGX.SU.Y.0009.181128T1000Z-181201T0600Z/
Orange County Coastal Areas-
141 AM PST Tue Nov 27 2018

...HIGH SURF ADVISORY IN EFFECT FROM 2 AM WEDNESDAY TO 10 PM PST
FRIDAY...

The National Weather Service in San Diego has issued a High Surf
Advisory...which is in effect from 2 AM Wednesday to 10 PM PST
Friday.

* Surf...5-8 feet, with isolated sets to 9 feet.

* Timing...Surf to build tonight and Wednesday, peak Thursday into
  Friday morning, and taper off later Friday. 

* 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 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.

&&

$$
13 follow-up statements
078 
WHUS46 KSGX 272133
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
133 PM PST Tue Nov 27 2018

...High Surf Wednesday into the Weekend...

.Large west-northwest swell with a long period will arrive at the
beaches Wednesday and continue through Friday in Orange County
and through Saturday in San Diego County. This swell will produce
high surf and strong rip currents, leading to hazardous swimming
conditions. Swell and surf will gradually subside over the
weekend.

CAZ043-280545-
/O.CON.KSGX.SU.Y.0009.181128T1000Z-181202T0400Z/
San Diego County Coastal Areas-
133 PM PST Tue Nov 27 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 AM WEDNESDAY TO
8 PM PST SATURDAY...

* Surf...6-10 feet, with isolated sets to 12 feet in southern 
  San Diego County. 

* Timing...Surf to build tonight and Wednesday, peak Thursday 
  into Friday morning, and taper off later Friday and Saturday. 

* 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 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.

&&

$$

CAZ552-280545-
/O.CON.KSGX.SU.Y.0009.181128T1000Z-181201T0600Z/
Orange County Coastal Areas-
133 PM PST Tue Nov 27 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 AM WEDNESDAY TO
10 PM PST FRIDAY...

* Surf...5-8 feet, with isolated sets to 9 feet.

* Timing...Surf to build tonight and Wednesday, peak Thursday 
  into Friday morning, and taper off later Friday. 

* 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 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.

&&

$$


https://www.weather.gov/sandiego
356 
WHUS46 KSGX 280334
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
734 PM PST Tue Nov 27 2018

...High Surf Wednesday into the Weekend...

.A large, long period west-northwest swell will arrive at the 
beaches Wednesday and continue through Friday in Orange County and
through Saturday in San Diego County. This swell will produce 
high surf and strong rip currents, leading to hazardous swimming 
conditions. Swell and surf will gradually subside over the 
weekend.

CAZ043-281400-
/O.CON.KSGX.SU.Y.0009.181128T1000Z-181202T0400Z/
San Diego County Coastal Areas-
734 PM PST Tue Nov 27 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 AM WEDNESDAY TO
8 PM PST SATURDAY...

* Surf...6-10 feet, with isolated sets to 12 feet in southern 
  San Diego County. 

* Timing...Surf will build tonight and Wednesday, peak Thursday 
  into Friday morning, and taper off later Friday and Saturday. 

* 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 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.

&&

$$

CAZ552-281400-
/O.CON.KSGX.SU.Y.0009.181128T1000Z-181201T0600Z/
Orange County Coastal Areas-
734 PM PST Tue Nov 27 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT FROM 2 AM WEDNESDAY TO
10 PM PST FRIDAY...

* Surf...5-8 feet, with isolated sets to 9 feet.

* Timing...Surf will build tonight and Wednesday, peak Thursday 
  into Friday morning, and taper off later Friday. 

* 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 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.

&&

$$


https://www.weather.gov/sandiego

JJT
207 
WHUS46 KSGX 281025
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
225 AM PST Wed Nov 28 2018

...High Surf into the Weekend...

.A long period west-northwest swell will build today and Thursday
and continue through Friday in Orange County and through Saturday
in San Diego County. This swell will produce high surf and strong
rip currents, leading to hazardous swimming conditions. Swell and
surf will gradually subside over the weekend.

CAZ043-282200-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
225 AM PST Wed Nov 28 2018

...HIGH SURF ADVISORY IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...6-10 feet, with sets to 12 feet in southern San Diego 
  County. 

* Timing...Surf will build today, peak Thursday into Friday
  morning, and subside later Friday and Saturday. 

* 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 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.

&&

$$

CAZ552-282200-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/
Orange County Coastal Areas-
225 AM PST Wed Nov 28 2018

...HIGH SURF ADVISORY IN EFFECT UNTIL 10 PM PST FRIDAY...

* Surf...5-8 feet, with sets to 9 feet.

* Timing...Surf will build today, peak Thursday into Friday
  morning, and subside later Friday. 

* 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 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.

&&

$$
069 
WHUS46 KSGX 282134
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
134 PM PST Wed Nov 28 2018

...High Surf into the Weekend...

.A large west-northwest swell with a long period will continue to
build into Thursday and Friday in Orange County and through 
Saturday in San Diego County. This swell will produce high surf 
and strong rip currents, leading to hazardous swimming conditions.
Swell and surf will gradually subside over the weekend.

CAZ043-290545-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
134 PM PST Wed Nov 28 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...6-10 feet, with sets to 12 feet in southern San Diego 
  County. 

* Timing...Surf will build today, peak Thursday into Friday 
  morning, and subside later Friday and Saturday. 

* 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 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.

&&

$$

CAZ552-290545-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/
Orange County Coastal Areas-
134 PM PST Wed Nov 28 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY...

* Surf...5-8 feet, with isolated sets to 9 feet.

* Timing...Surf will build today, peak Thursday into Friday 
  morning, and subside later Friday 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. Minor 
  coastal flooding during 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.

&&

$$

APR

https://www.weather.gov/sandiego
731 
WHUS46 KSGX 290507
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
907 PM PST Wed Nov 28 2018

...High Surf Conditions will Continue into the Weekend...

.A large west-northwest swell with a long period will continue to
build and persist through Friday in Orange County and through 
Saturday in San Diego County. This swell will produce high surf 
and strong rip currents, leading to hazardous swimming conditions.
Swell and surf will gradually subside over the weekend.

CAZ043-291600-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
907 PM PST Wed Nov 28 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...6-10 feet, with sets to 12 feet in southern San Diego 
  County. 

* Timing...Surf will build through Thursday, peak Thursday night
  and Friday, then subside on Saturday.  

* 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 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.

&&

$$

CAZ552-291600-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/
Orange County Coastal Areas-
907 PM PST Wed Nov 28 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY...

* Surf...5-8 feet, with isolated sets to 10 feet.

* Timing...Surf will build tonight and Thursday, peak Thursday
  night and Friday, then subside over the weekend. 

* 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 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.

&&

$$


https://www.weather.gov/sandiego
378 
WHUS46 KSGX 291012
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
212 AM PST Thu Nov 29 2018

...High Surf will continue into the Weekend...

.A large west-northwest swell will continue to bring high surf 
through Friday in Orange County and through Saturday in San Diego
County. Swell and surf will gradually subside over the weekend.

CAZ043-292200-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
212 AM PST Thu Nov 29 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...7-12 feet. 

* Timing...Surf will build today, peak tonight into Friday, then
  gradually subside late Friday and Saturday. 

* 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 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.

&&

$$

CAZ552-292200-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/
Orange County Coastal Areas-
212 AM PST Thu Nov 29 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY...

* Surf...5-10 feet.

* Timing...Surf will build today, peak tonight into Friday, then
  gradually subside late Friday and Saturday. 

* 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 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.

&&

$$
003 
WHUS46 KSGX 292154
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
154 PM PST Thu Nov 29 2018

...High Surf will continue into the weekend...

.A large west-northwest swell will continue to bring high surf
through Friday in Orange County and through Saturday in San Diego
County. Swell and surf will gradually subside over the weekend.

CAZ043-300600-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
154 PM PST Thu Nov 29 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...6-10 feet, with sets to 12 feet in southern San Diego
  County.

* Timing...Surf will build today, peak tonight into Friday, then 
  gradually subside late Friday and Saturday. 

* 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 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.

&&

$$

CAZ552-300600-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/
Orange County Coastal Areas-
154 PM PST Thu Nov 29 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY...

* Surf...5-8 feet, with isolated sets to 10 feet.

* Timing...Surf will build today, peak tonight into Friday, then 
  gradually subside late Friday and Saturday. 

* 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 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.

&&

$$

Connolly

https://www.weather.gov/sandiego
605 
WHUS46 KSGX 300510
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
910 PM PST Thu Nov 29 2018

...High Surf will continue into the weekend...

.A large west-northwest swell will continue to bring high surf
through Friday in Orange County and through Saturday in San Diego
County. Swell and surf will gradually subside over the weekend.

CAZ043-301600-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
910 PM PST Thu Nov 29 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...7-10 feet, with sets to 13 feet in southern San Diego 
  County. 

* Timing...Surf will peak on Friday, then begin to gradually 
  subside Friday night into Saturday. 

* 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 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.

&&

$$

CAZ552-301600-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/
Orange County Coastal Areas-
910 PM PST Thu Nov 29 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY...

* Surf...6-8 feet, with isolated sets to 10 feet.

* Timing...Surf will tonight into Friday, then begin to subside
  Friday night.
 
* 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 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.

&&

$$


https://www.weather.gov/sandiego
477 
WHUS46 KSGX 301333
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
533 AM PST Fri Nov 30 2018

...High Surf will continue into the weekend...

.A large west-northwest swell will continue to bring high surf
through Friday in Orange County and through Saturday in San Diego
County. Swell and surf will gradually subside over the weekend.

CAZ043-302200-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
533 AM PST Fri Nov 30 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...6-10 feet with sets to 12 feet in southern San Diego 
  County. 

* Timing...Surf peaking today, then begin to gradually subside tonight
  into Saturday. 

* 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 beach
  erosion is 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.

&&

$$

CAZ552-302200-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/
Orange County Coastal Areas-
533 AM PST Fri Nov 30 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* Surf...4-7 feet, with isolated sets to 9 feet.

* Timing...Surf peaking today, then begin to gradually subside
  tonight into Saturday. 

* 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 beach
  erosion is 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.

&&

$$

SS

https://www.weather.gov/sandiego
891 
WHUS46 KSGX 302111
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
111 PM PST Fri Nov 30 2018

...High Surf will continue into the weekend...

.A large west-northwest swell will continue to bring high surf
through Friday in Orange County and through Saturday in San Diego
County. Swell and surf will gradually subside over the weekend.

CAZ043-010600-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
111 PM PST Fri Nov 30 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...6-10 feet with sets to 12 feet in southern San Diego
  County. Friday may see some sets to 14-15 feet in favored
  locations.

* Timing...Surf peaking today, then beginning to gradually 
  subside tonight into Saturday. 

* 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 
  beach erosion is 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.

&&

$$

CAZ552-010600-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181201T0600Z/
Orange County Coastal Areas-
111 PM PST Fri Nov 30 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* Surf...5-8 feet, with sets to 9 feet in favored spots.

* Timing...Surf peaking today, then beginning to gradually 
  subside tonight into Saturday. 

* 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 
  beach erosion is 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.

&&

$$

Rodriguez
https://www.weather.gov/sandiego
422 
WHUS46 KSGX 010503
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
903 PM PST Fri Nov 30 2018

...High Surf will continue into the weekend...

.A large west-northwest swell will continue to bring high surf
into Saturday in San Diego and Orange Counties. Swell and surf 
will gradually subside Saturday through Saturday night.

CAZ552-011400-
/O.EXT.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
Orange County Coastal Areas-
903 PM PST Fri Nov 30 2018

...HIGH SURF ADVISORY NOW IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...5-8 feet, with sets to 9 feet in favored spots.

* Timing...Surf gradually subsiding Saturday and Saturday night.
 
* 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 
  beach erosion is 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.

&&

$$

CAZ043-011400-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
903 PM PST Fri Nov 30 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST SATURDAY...

* Surf...6-9 feet with sets to 11 feet, highest in southern San
  Diego County.
 
* Timing...Surf gradually subsiding Saturday and Saturday night.
 
* 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 
  beach erosion is 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
225 
WHUS46 KSGX 011325
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
525 AM PST Sat Dec 1 2018

...High Surf will continue into the weekend...

.A large west-northwest swell will continue to bring high surf
through this evening in San Diego and Orange Counties. Swell and 
surf will gradually subside through the day.

CAZ043-012200-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
San Diego County Coastal Areas-
525 AM PST Sat Dec 1 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST THIS
EVENING...

* Surf...5-8 feet with sets to 10 feet, highest in southern San 
  Diego County. 

* Timing...Surf gradually subsiding through the day.

* 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 
  beach erosion is 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.

&&

$$

CAZ552-012200-
/O.CON.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
Orange County Coastal Areas-
525 AM PST Sat Dec 1 2018

...HIGH SURF ADVISORY REMAINS IN EFFECT UNTIL 8 PM PST THIS
EVENING...

* Surf...4-7 feet with sets to 8 feet in favored spots.

* Timing...Surf gradually subsiding through the day.

* 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 
  beach erosion is 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.

&&

$$

ss

https://www.weather.gov/sandiego
818 
WHUS46 KSGX 012116
CFWSGX

Coastal Hazard Message
National Weather Service San Diego CA
116 PM PST Sat Dec 1 2018

CAZ043-552-020600-
/O.CAN.KSGX.SU.Y.0009.000000T0000Z-181202T0400Z/
/O.NEW.KSGX.BH.S.0012.181201T2116Z-181203T0200Z/
San Diego County Coastal Areas-Orange County Coastal Areas-
116 PM PST Sat Dec 1 2018

...BEACH HAZARDS STATEMENT IN EFFECT THROUGH SUNDAY AFTERNOON...
...HIGH SURF ADVISORY IS CANCELLED...

The National Weather Service in San Diego has issued a Beach
Hazards Statement...which is in effect through Sunday afternoon.
The High Surf Advisory has been cancelled. 

* Surf...3-6 feet with max sets to 7 feet in favored spots.

* Changes Since Last Issuance...The surf has steadily fallen since
  Friday night and is now below the High Surf Advisory criteria of
  7 feet at most beaches. However, above average surf of 3 to 6
  feet is forecast through Sunday afternoon. A Beach Hazard
  Statement for above average surf and strong rip currents was
  issued and will be in effect through 6 PM Sunday.

* 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. 

* Surf Reports...At 1 PM Saturday the surf was 5 feet at
  Huntington Beach and Mission Beach, and 4 feet at San Clemente
  and Solana Beach.

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.

&&

$$

Moede

https://www.weather.gov/sandiego

What forecasters said that day

The local office's own words before this high surf advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Diego, CA wrote its last area forecast discussion before this high surf advisory went out at Nov 26, 9:10 PM PST, 4 hours 31 minutes earlier.

Area forecast discussion, Nov 26, 9:10 PM PST, 4 hours 31 minutes before
Area Forecast Discussion
National Weather Service San Diego CA
910 PM PST Mon Nov 26 2018

.SYNOPSIS...
Fair and very mild weather will continue through Tuesday. Locally
gusty northeast winds will occur through and below passes and
canyons through Tuesday morning. Cooling will begin Wednesday as
onshore flow strengthens and the marine air moves farther inland. A
low pressure trough speeding across the Pacific will bring rain,
snow to the mountain peaks, and gusty westerly winds. Locally heavy
rain will likely occur on the coastal mountain slopes. Another
system could bring more precipitation this weekend.

&&

.DISCUSSION...FOR EXTREME SOUTHWESTERN CALIFORNIA INCLUDING ORANGE...
SAN DIEGO...WESTERN RIVERSIDE AND SOUTHWESTERN SAN BERNARDINO
COUNTIES...

Other than some patchy high clouds, skies were clear across SoCal at
8 PM PDT. The 00Z Miramar sounding had a shallow weak inversion base
near 1000 FT MSL. Winds were NW 10 KT or less below 3500 FT and
solidly NE above through 10K FT. The sfc gradients were holding at 7
MBS offshore from SW NV to KSAN, but NE winds were mostly 15-20 MPH
in the windiest spots. It was quite dry with RH values at numerous
stations inland at or below 15%. The winds are likely to pick up a
bit overnight into Tue morning, combined with the low RH well
inland, will continue an elevated fire weather threat there.

Looks like the offshore gradient, coupled with cool drainage flow
should hold any stratus/fog development offshore tonight. Wednesday
will be a transition day as onshore flow strengthens. The marine
layer will be returning Tue night with low clouds expected to spread
inland over coastal areas and into the western valleys, where some
fog is possible. No forecast changes this evening. New...HYDROLOGY
DISCUSSION added below.

From previous discussion...

The Pacific storm system is still on track to bring widespread rain
Thursday, possibly starting as early as Wednesday evening. Rainfall
amounts vary with each model, but it still looks like around or
slightly under one inch will prevail at lower elevations, though
confidence is increasing that orographic southwest-facing slopes
will receive substantially more, perhaps 3-5 inches locally, from
Wednesday night through Friday morning, as southwest flow in the 850-
700 MB will be saturated with speeds in the 20-40 knot range over
the mountains. GFS has been consistent with a weak atmospheric river
in our area, with 500 kg/m/s values during recent runs, and
saturation mostly up to 600-650 MB. Timing of the maximum moisture
and forcing along the front is likely to be late morning-early
afternoon Thursday, though probably a bit later in San Diego County.
The cold air aloft will stay mostly to the north, so snow levels
will be quite high, 8000+ feet Thursday morning, then 6500-7000 feet
by Thursday evening, so snow will mostly be restricted to the
highest mountains of San Bernardino/Riverside County. With tight
pressure height gradients aloft, strong winds will occur in the
mountains and parts of the deserts Thursday/Thursday night, with
gust potential over 60 MPH.

Precip should end Friday morning, but models, somewhat
inconsistently, are showing a weaker but colder system moving
through sometime over the weekend, which could bring more rain and
some mountain snows, but probably nothing excessive.

&&

.HYDROLOGY...
A fast-moving low pressure system will drive east across CA on
Thursday. Current indications are that it will pull a cold front
across the CWA from NW to SE on Thursday fed by a moisture plume of
just over one inch. Strong upslope flow should concentrate the
heaviest precip amounts of 3 inches or more on the coastal slopes
for the duration of the storm. Due to the speed of the system,
widespread excessive rainfall and flooding is not expected. However,
models are showing cold frontal structure to the sfc winds, and
support aloft by the nose of a strong jet aloft. Organized heavier
rainfall is possible along and just ahead of the front, and the cold
air aloft trailing it will set the stage for post-frontal convective
showers and possible thunderstorms. Rainfall rates are likley to be
briefly heavy at time of frontal passage. It will be more difficult
to determine the timing of any convective rainfall potential in any
less organized activity behind the front later Thu/Thu night. At
this time rainfall rates are expected to reach 1/2 inch per hour
near the front. In any heavy convection/thunderstorm development
though, rates could reach 1/2 inch or more in 15 minutes. These
rates are capable of triggering debris flows, urban flooding, and
ponding of water in low-lying and poorly drained areas. Greatest
impact appears to be for Thursday. Where available, check latest
briefing sheets for updates on forecast rainfall timing and rates.

&&

.AVIATION...
270430...FEW/SCT high clouds AOA 25,000 ft and unrestricted vis
through Tuesday afternoon. Low clouds will likely return to the
coast Tuesday night.

&&

.MARINE...
No hazardous marine weather is expected through Tuesday. Combined
seas will increase to 9-11 ft on Wednesday, followed by gusty west-
northwest winds Thursday through Saturday. This will likely generate
conditions hazardous to small craft for the latter half of the week.

&&

.BEACHES...
A 9-11 ft swell at 16-18 seconds from 290 degrees will generate high
surf, strong rip currents, and the potential for minor coastal
flooding and minor beach erosion beginning on Wednesday and likely
continuing into the weekend. A Beach Hazards Statement remains in
effect for Tuesday afternoon through Friday evening.

&&

.FIRE WEATHER...
Low RH will continue inland through Tuesday, with some recovery late
in the day as winds turn back onshore. Northeast winds will hold
overnight into early Tuesday morning at 15 to 20 MPH along the
coastal slopes and foothills, with isolated gusts 25-30 MPH below
wind-favored canyons and passes. Otherwise the wind will trend
weaker and turn back onshore by Tue afternoon. Better RH recovery
will occur tomorrow night through Wednesday, with wetting rains
Thursday.

&&

.SKYWARN...
Skywarn activation is not requested. However weather spotters are
encouraged to report significant weather conditions.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...Beach Hazards Statement from Tuesday afternoon through Friday
     evening for Orange County Coastal Areas-San Diego County
     Coastal Areas.

PZ...NONE.

&&

PUBLIC...10/Maxwell
FIRE WEATHER/Hydrology...10
AVIATION/MARINE/BEACHES...JJT

The office that day

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

IssuedProductOfficeCountiesLasted
Nov 27, 12:47 PM PSTFlash Flood WatchSGXOrange, Riverside, San Bernardino, San Diego61 hr
Nov 27, 1:57 PM PSTSmall Craft AdvisorySGX5 days

Nearby

High Surf Advisories in California, 2018Every high surf advisory 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.