High Surf Warning 2, NWS San Diego, CA

071 
WHUS46 KSGX 170540
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
940 PM PST THU FEB 16 2017

...HIGH SURF FRIDAY THROUGH SUNDAY WITH POTENTIALLY DAMAGING SURF
LATE SATURDAY THROUGH EARLY SUNDAY...

.A LARGE...LONG-PERIOD WEST-NORTHWEST SWELL WILL CREATE HIGH SURF
ALONG THE BEACHES FRIDAY THROUGH THE WEEKEND. THE HIGHEST SURF IS
EXPECTED SATURDAY AFTERNOON THROUGH EARLY SUNDAY WITH POTENTIALLY
DAMAGING SURF OF 15 FEET. THE HIGH SURF COULD ALSO CAUSE MINOR
COASTAL FLOODING DURING TIMES OF HIGH TIDE. POWERFUL RIP CURRENTS
WILL OCCUR WITH THESE SWELLS AS WELL.

CAZ043-552-171400-
/O.CON.KSGX.SU.W.0002.170217T0900Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
940 PM PST THU FEB 16 2017

...HIGH SURF WARNING REMAINS IN EFFECT FROM 1 AM FRIDAY TO 10 PM
PST SUNDAY...

* SURF...5 TO 10 FEET FRIDAY...THEN POTENTIALLY DAMAGING SURF OF 
  10 TO 15 FEET SATURDAY AFTERNOON THROUGH EARLY SUNDAY 
  MORNING...WITH SURF THEN FALLING TO 5 TO 8 FEET LATE SUNDAY 
  MORNING AND AFTERNOON. 

* HIGHEST TIDES...4.0 FEET FRIDAY AT 109 AM...4.0 FEET SATURDAY 
  AT 210 AM...AND 4.0 FEET SUNDAY AT 325 AM. 

* IMPACTS...DAMAGE POSSIBLE TO COASTAL STRUCTURES SUCH AS PIERS. 
  STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS. BEACH 
  EROSION AND MINOR COASTAL FLOODING. LARGE WAVES OVER-TOPPING 
  JETTIES AND ROCK FORMATIONS CAN SWEEP PEOPLE OUT TO SEA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVES
WILL POUND THE SHORELINE. THIS WILL RESULT IN LIFE-THREATENING
CONDITIONS.

&&

$$

JJT

HTTP://WWW.WEATHER.GOV/SANDIEGO

672 
WHUS46 KSGX 171329
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
529 AM PST FRI FEB 17 2017

...HIGH SURF FRIDAY THROUGH SUNDAY WITH POTENTIALLY DAMAGING SURF
LATE SATURDAY THROUGH EARLY SUNDAY...

.A LARGE...LONG-PERIOD WEST SWELL WILL CREATE HIGH SURF ALONG THE
BEACHES TODAY THROUGH THE WEEKEND. THE HIGHEST SURF IS EXPECTED
SATURDAY AFTERNOON THROUGH EARLY SUNDAY WITH POTENTIALLY DAMAGING
SURF OF 15 FEET. HIGH SURF COULD ALSO CAUSE MINOR COASTAL
FLOODING DURING TIMES OF HIGH TIDE. POWERFUL RIP CURRENTS WILL
OCCUR AS WELL.

CAZ043-552-172200-
/O.CON.KSGX.SU.W.0002.000000T0000Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
529 AM PST FRI FEB 17 2017

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 10 PM PST SUNDAY...

* SURF...5 TO 10 FEET TODAY...THEN POTENTIALLY DAMAGING SURF OF
  10 TO 15 FEET SATURDAY AFTERNOON THROUGH EARLY SUNDAY
  MORNING...WITH SURF THEN FALLING TO 5 TO 8 FEET LATE SUNDAY
  MORNING AND AFTERNOON.

* HIGHEST TIDES...4.0 FEET FRIDAY AT 109 AM...4.0 FEET SATURDAY 
  AT 210 AM...AND 4.0 FEET SUNDAY AT 325 AM. 

* IMPACTS...DAMAGE POSSIBLE TO COASTAL STRUCTURES SUCH AS PIERS. 
  STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS. BEACH 
  EROSION AND MINOR COASTAL FLOODING. LARGE WAVES OVER-TOPPING 
  JETTIES AND ROCK FORMATIONS CAN SWEEP PEOPLE OUT TO SEA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVES
WILL POUND THE SHORELINE. THIS WILL RESULT IN LIFE-THREATENING
CONDITIONS.

&&

$$

SS

HTTP://WWW.WEATHER.GOV/SANDIEGO

821 
WHUS46 KSGX 171954
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1154 AM PST FRI FEB 17 2017

...HIGH SURF TODAY THROUGH SUNDAY WITH POTENTIALLY DAMAGING SURF
LATE SATURDAY THROUGH EARLY SUNDAY...

.A LARGE...LONG-PERIOD WEST-NORTHWEST SWELL FROM 285 DEGREES WILL
LIKELY BRING HIGH SURF TO THE BEACHES TODAY. THEN A VERY LARGE
WEST SWELL FROM 270 DEGREES WILL BRING LARGE AND POTENTIALLY
DAMAGING SURF OF 15 FEET LATE SATURDAY THROUGH EARLY SUNDAY BEFORE
SWELL AND SURF START TO DIMINISH. THE HIGH TIDES WILL ONLY BE
AROUND 4 TO 4.5 FEET, WHICH WILL MITIGATE THE COASTAL FLOODING
THREAT SOMEWHAT. HOWEVER...MINOR COASTAL FLOODING COULD STILL
OCCUR DUE TO HOW HIGH THE SURF WILL GET. POWERFUL RIP CURRENTS
WILL OCCUR WITH THESE SWELLS AS WELL.

CAZ043-552-180600-
/O.CON.KSGX.SU.W.0002.000000T0000Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
1154 AM PST FRI FEB 17 2017

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 10 PM PST SUNDAY...

* SURF...5 TO 10 FEET TODAY...THEN POTENTIALLY DAMAGING SURF OF 10
  TO 15 FEET SATURDAY AFTERNOON THROUGH EARLY SUNDAY MORNING...WITH
  SURF THEN FALLING TO 5 TO 8 FEET LATE SUNDAY MORNING AND
  AFTERNOON.

* HIGHEST TIDES...4.0 FEET SATURDAY AT 210 AM...AND 4.0 FEET
  SUNDAY AT 325 AM.

* IMPACTS...DAMAGE POSSIBLE TO COASTAL STRUCTURES SUCH AS PIERS. 
  STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS. BEACH 
  EROSION AND MINOR COASTAL FLOODING. LARGE WAVES OVER-TOPPING 
  JETTIES AND ROCK FORMATIONS CAN SWEEP PEOPLE OUT TO SEA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVES
WILL POUND THE SHORELINE. THIS WILL RESULT IN LIFE-THREATENING
CONDITIONS.

&&

$$

HARRISON

HTTP://WWW.WEATHER.GOV/SANDIEGO

521 
WHUS46 KSGX 180554
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
954 PM PST FRI FEB 17 2017

...HIGH SURF TODAY THROUGH SUNDAY WITH POTENTIALLY DAMAGING SURF
LATE SATURDAY THROUGH EARLY SUNDAY...

.A COUPLE OF STRONG LONG-PERIOD WEST SWELLS WILL CONTINUE TO BRING
VERY HIGH SURF THIS WEEKEND. A VERY LARGE WEST SWELL FROM 270
DEGREES WILL PEAK LATE SATURDAY AND SATURDAY NIGHT AND BRING
LARGE AND POTENTIALLY DAMAGING SURF OF 15 FEET. THE SWELL AND
SURF WILL START TO DIMINISH SUNDAY. THE HIGH TIDES WILL ONLY BE
AROUND 4 TO 4.5 FEET... WHICH WILL MITIGATE THE COASTAL FLOODING
THREAT SOMEWHAT. HOWEVER...MINOR COASTAL FLOODING COULD STILL
OCCUR DUE TO THE HEIGHT OF THE SURF. POWERFUL RIP CURRENTS WILL
OCCUR WITH THESE SWELLS AS WELL.

CAZ043-552-181400-
/O.CON.KSGX.SU.W.0002.000000T0000Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
954 PM PST FRI FEB 17 2017

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 10 PM PST SUNDAY...

* SURF...7 TO 12 FEET THROUGH SATURDAY MORNING...THEN POTENTIALLY
  DAMAGING SURF OF 10 TO 15 FEET SATURDAY AFTERNOON THROUGH EARLY
  SUNDAY MORNING... WITH SURF THEN FALLING TO 5 TO 8 FEET LATE
  SUNDAY MORNING AND AFTERNOON.

* HIGHEST TIDES...4.0 FEET SATURDAY AT 210 AM...AND 4.0 FEET 
  SUNDAY AT 325 AM. 

* IMPACTS...DAMAGE POSSIBLE TO COASTAL STRUCTURES SUCH AS PIERS. 
  STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS. BEACH 
  EROSION AND MINOR COASTAL FLOODING. LARGE WAVES OVER-TOPPING 
  JETTIES AND ROCK FORMATIONS CAN SWEEP PEOPLE OUT TO SEA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVES
WILL POUND THE SHORELINE. THIS WILL RESULT IN LIFE-THREATENING
CONDITIONS.

&&

$$

MAXWELL

257 
WHUS46 KSGX 181319
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
519 AM PST SAT FEB 18 2017

...HIGH SURF THROUGH SUNDAY WITH POTENTIALLY DAMAGING SURF LATE
TODAY THROUGH EARLY SUNDAY...

.A LARGE...MODERATE PERIOD WEST SWELL WILL BRING VERY HIGH SURF
THIS WEEKEND. THE SWELL WILL PEAK THIS AFTERNOON AND
TONIGHT...BRINGING LARGE AND POTENTIALLY DAMAGING SURF OF 15
FEET. THE SWELL AND SURF WILL START TO DIMINISH SUNDAY. MINOR
COASTAL FLOODING COULD STILL OCCUR DUE TO THE HEIGHT OF THE SURF.
POWERFUL RIP CURRENTS WILL OCCUR WITH THESE SWELLS AS WELL.

CAZ043-552-182130-
/O.CON.KSGX.SU.W.0002.000000T0000Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
519 AM PST SAT FEB 18 2017

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 10 PM PST SUNDAY...

* SURF...7 TO 12 FEET WITH POTENTIALLY DAMAGING SETS TO 15 FEET
  THIS AFTERNOON THROUGH EARLY SUNDAY MORNING... WITH SURF THEN
  FALLING TO 5 TO 8 FEET BY LATE SUNDAY MORNING.

* HIGHEST TIDES...4.0 FEET SATURDAY AT 210 AM...AND 4.0 FEET 
  SUNDAY AT 325 AM. 

* IMPACTS...DAMAGE POSSIBLE TO COASTAL STRUCTURES SUCH AS PIERS. 
  STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS. BEACH 
  EROSION AND MINOR COASTAL FLOODING. LARGE WAVES OVER-TOPPING 
  JETTIES AND ROCK FORMATIONS CAN SWEEP PEOPLE OUT TO SEA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVES
WILL POUND THE SHORELINE. THIS WILL RESULT IN LIFE-THREATENING
CONDITIONS.

&&

$$

SS

HTTP://WWW.WEATHER.GOV/SANDIEGO

821 
WHUS46 KSGX 182101
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
101 PM PST SAT FEB 18 2017

...HIGH SURF THROUGH SUNDAY WITH POTENTIALLY DAMAGING SURF LATE
TODAY THROUGH EARLY SUNDAY...

.A LARGE...MODERATE PERIOD WEST SWELL WILL BRING VERY HIGH SURF
LATE TODAY THROUGH EARLY SUNDAY. THE SWELL WILL PEAK LATE THIS
AFTERNOON AND TONIGHT...BRINGING LARGE AND POTENTIALLY DAMAGING
SURF OF 15 FEET. THE SWELL AND SURF WILL START TO DIMINISH SUNDAY.
MINOR COASTAL FLOODING COULD STILL OCCUR DUE TO THE HEIGHT OF THE
SURF. POWERFUL RIP CURRENTS WILL OCCUR WITH THESE SWELLS AS WELL.

CAZ043-552-190600-
/O.CON.KSGX.SU.W.0002.000000T0000Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
101 PM PST SAT FEB 18 2017

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 10 PM PST SUNDAY...

* SURF...7 TO 12 FEET WITH POTENTIALLY DAMAGING SETS TO 15 FEET
  LATE THIS AFTERNOON THROUGH EARLY SUNDAY MORNING...WITH SURF
  THEN FALLING TO 5 TO 8 FEET BY LATE SUNDAY MORNING.

* HIGHEST TIDES...4.0 FEET SUNDAY AT 325 AM.

* IMPACTS...DAMAGE POSSIBLE TO COASTAL STRUCTURES SUCH AS PIERS. 
  STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS. BEACH 
  EROSION AND MINOR COASTAL FLOODING. LARGE WAVES OVER-TOPPING 
  JETTIES AND ROCK FORMATIONS CAN SWEEP PEOPLE OUT TO SEA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVES
WILL POUND THE SHORELINE. THIS WILL RESULT IN LIFE-THREATENING
CONDITIONS.

&&

$$

HARRISON

HTTP://WWW.WEATHER.GOV/SANDIEGO

944 
WHUS46 KSGX 190543
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
943 PM PST SAT FEB 18 2017

...HIGH SURF THROUGH SUNDAY WITH POTENTIALLY DAMAGING SURF LATE
TODAY THROUGH EARLY SUNDAY...

.A VERY LARGE...MODERATE PERIOD WEST SWELL WILL BRING VERY HIGH
SURF THROUGH EARLY SUNDAY. THE SWELL IS PEAKING TONIGHT AND SHOULD
BRING LARGE AND POTENTIALLY DAMAGING SURF OF 15 FEET. THE SWELL
AND SURF WILL GRADUALLY DIMINISH SUNDAY. MINOR COASTAL FLOODING
COULD STILL OCCUR DUE TO THE HEIGHT OF THE SURF. POWERFUL RIP
CURRENTS WILL OCCUR WITH THESE SWELLS AS WELL.

CAZ043-552-191400-
/O.CON.KSGX.SU.W.0002.000000T0000Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
943 PM PST SAT FEB 18 2017

...HIGH SURF WARNING REMAINS IN EFFECT UNTIL 10 PM PST SUNDAY...

* SURF...7 TO 12 FEET WITH POTENTIALLY DAMAGING SETS TO 15 FEET
  THROUGH EARLY SUNDAY MORNING...WITH SURF THEN FALLING TO 5 TO 8
  FEET BY SUNDAY AFTERNOON.

* HIGHEST TIDES...4.0 FEET SUNDAY AT 325 AM.

* IMPACTS...DAMAGE POSSIBLE TO COASTAL STRUCTURES SUCH AS PIERS. 
  STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS. BEACH 
  EROSION AND MINOR COASTAL FLOODING. LARGE WAVES OVER-TOPPING 
  JETTIES AND ROCK FORMATIONS CAN SWEEP PEOPLE OUT TO SEA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVES
WILL POUND THE SHORELINE. THIS WILL RESULT IN LIFE-THREATENING
CONDITIONS.

&&

$$

MAXWELL

950 
WHUS46 KSGX 191318
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
518 AM PST SUN FEB 19 2017

...HIGH SURF CONTINUING TODAY...

.A LARGE...MODERATE PERIOD WEST SWELL WILL BRING HIGH SURF
TODAY. THE SWELL AND SURF WILL GRADUALLY DIMINISH THROUGH THE
AFTERNOON. MINOR COASTAL FLOODING COULD STILL OCCUR DUE TO THE
HEIGHT OF THE SURF. POWERFUL RIP CURRENTS WILL OCCUR WITH THESE
SWELLS AS WELL.

CAZ043-552-192200-
/O.CON.KSGX.SU.W.0002.000000T0000Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
518 AM PST SUN FEB 19 2017

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

* SURF...6 TO 10 FEET WITH SETS TO 12 FEET THIS MORNING...WITH
  SURF FALLING TO 5 TO 8 FEET BY SUNDAY AFTERNOON.

* HIGH TIDES...2.7 FEET AT 614 PM.

* IMPACTS...DAMAGE POSSIBLE TO COASTAL STRUCTURES SUCH AS PIERS. 
  STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS. BEACH 
  EROSION AND MINOR COASTAL FLOODING. LARGE WAVES OVER-TOPPING 
  JETTIES AND ROCK FORMATIONS CAN SWEEP PEOPLE OUT TO SEA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HIGH SURF WARNING INDICATES THAT DANGEROUS...BATTERING WAVES
WILL POUND THE SHORELINE. THIS WILL RESULT IN LIFE-THREATENING
CONDITIONS.

&&

$$

SS

HTTP://WWW.WEATHER.GOV/SANDIEGO

459 
WHUS46 KSGX 191806
CFWSGX

COASTAL HAZARD MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
1006 AM PST SUN FEB 19 2017

...HIGH SURF THROUGH EARLY THIS EVENING...

.SURF HEIGHTS HAVE FALLEN WELL BELOW WARNING LEVELS AND THE LARGE
WEST-NORTHWEST SWELL WILL CONTINUE TO GRADUALLY LOWER THROUGH THE
DAY. HOWEVER...HIGH SURF AND STRONG RIP CURRENTS WILL CONTINUE TO
IMPACT THE BEACHES THROUGH AT LEAST EARLY EVENING. 

CAZ043-552-200600-
/O.CAN.KSGX.SU.W.0002.000000T0000Z-170220T0600Z/
/O.NEW.KSGX.SU.Y.0005.170219T1806Z-170220T0600Z/
SAN DIEGO COUNTY COASTAL AREAS-ORANGE COUNTY COASTAL AREAS-
1006 AM PST SUN FEB 19 2017

...HIGH SURF ADVISORY IN EFFECT UNTIL 10 PM PST THIS EVENING...
...HIGH SURF WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A HIGH SURF
ADVISORY...WHICH IS IN EFFECT UNTIL 10 PM PST THIS EVENING. THE
HIGH SURF WARNING HAS BEEN CANCELLED. 

* SURF...6 TO 10 FEET THIS MORNING...WITH SURF FALLING TO 5 TO 8
  FEET BY THIS AFTERNOON.

* HIGH TIDES...2.7 FEET AT 614 PM THIS EVENING.

* IMPACTS...STRONG RIP CURRENTS AND DANGEROUS SWIMMING CONDITIONS.
  LARGE WAVES OVER-TOPPING JETTIES AND ROCK FORMATIONS CAN SWEEP
  PEOPLE OUT TO SEA.

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.

&&

$$

HARRISON

HTTP://WWW.WEATHER.GOV/SANDIEGO

Area Forecast Discussion
National Weather Service San Diego CA
1042 AM PST Thu Feb 16 2017

...High Impact, Major Pacific Storm to Impact Southern California
Friday into Saturday...

...Damaging Winds Expected Friday Afternoon-Night Along with Heavy
Rainfall, Potentially Leading to Flash Flooding...

.SYNOPSIS...
A high impact, major Pacific storm will arrive to Southern
California on Friday. This storm will bring damaging winds and
heavy precipitation to the area. The most significant impacts are
expected to occur Friday afternoon through Friday night. Showers
will continue Saturday. Dry weather returns Sunday, but some
lighter showers are expected Monday and again Wednesday.

&&

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

Highlights...

* Significant Wind Storm Expected 2 PM-Midnight Friday
* Widespread Rain Moves in Friday; Flash Flooding Possible
* Heavy High Mountain Snowfall Friday-early Saturday

Water vapor imagery shows a developing storm system over the
Pacific at 143 degrees longitude directly west of the northern
California coast. An atmospheric river oriented in west to east
fashion will eventually move into Southern California on Friday
while becoming oriented north to south as this low develops.
Surface pressures will lower and are shown to be off the charts
when looking at the past 30-year record. This tightening pressure
field will lead to an anomalous low level jet with model consensus
showing H85 winds increasing to 50-60 KT ahead of the low/cold
front Friday afternoon/evening.

As this system moves inland on Friday, confidence is high on a
significant wind storm affecting all of Southern California during
the period of 2 PM - Midnight Friday. Wind gusts of 50 to 60 mph
are expected from the coast to the valleys and across portions of
the lower deserts. Localized gusts of 60-70 mph is even possible.
Wind gusts in the mountains and portions of the high deserts will
exceed 70 mph. Even a period of high sustained winds of 30 to 40
mph is expected along the coast Friday afternoon into the evening.
This will be a high impact wind event! Numerous trees will fall,
posing a life and property risk. Downed powerlines, power outages,
and some structural damage is also expected.

In addition to the damaging winds, rain will increase during the
day and become heavy. Most likely timing of heaviest rain is
4 PM - midnight Friday, beginning first in Orange County then
spreading south and east through the evening. Rain rates of
0.5-1.0 inch per hour are expected. A flash flood watch is in
effect for the entire area. See hydrology section below for more
details on amounts.

Winds will drop off very quickly early Saturday morning and the
steady precipitation will turn to showers. There is a slight
chance of thunderstorms mainly for coastal areas Friday evening,
and in San Diego County, the mountains and lower deserts on
Saturday. The storm slowly moves out Sunday bringing an end to the
showers. Southern California remains on the edge of moist westerly
flow next week with LA and Orange Counties right on the line
separating rain and no rain. We'll carry a small chance of showers
in the forecast Monday north of San Diego County. A trough of low
pressure pushes that moisture southward on Wednesday for a better
chance of showers. These shower events do not appear heavy.

&&

.AVIATION...
161650Z...A few patches of BKN-OVC clouds within 5-10 sm of the
Orange county coast and along the immediate coast of San Diego
county, with bases 200 ft msl, tops around 400-500 ft msl, and vis
1/4-2 sm, should lift and clear out through 1900 UTC. Elsewhere,
P6SM vis and SCT-BKN clouds AOA 20000 ft msl continuing. 1900-
17/0000 UTC, prevailing P6SM vis and SCT-BKN clouds AOA 20000 ft
msl, except for possibly some BKN clouds 200-600 ft msl lingering
within 2 sm of the coast. 17/0000-1500 UTC, BKN-OVC clouds
developing and eventually filling up the coastal basin, mountain
passes and lower coastal slopes. Bases/tops start out at 700-1100 ft
msl/1500 ft msl with areas of vis 3-5 sm and local vis 1/4 sm along
higher coastal terrain/mesas, and then bases/tops rise through the
night, reaching 1000-2000 ft msl/2500-3000 ft msl by 17/1200 UTC.
Mountain obscuration of coastal slopes likely by 17/0900 UTC.
Isolated light showers possible after 17/0900 UTC. Elsewhere, P6SM
vis and BKN clouds AOA 20000 ft msl.

Breezy SW to W winds 15-25 kt with gusts 35-40 kt will develop over
mountains, along desert mountain slopes and into adjacent deserts
after 2100 UTC, with mod to locally strong uddfs/llws possible
over and N, NE and E of the mountains.

&&

.MARINE...
Areas of dense fog over the coastal waters should lift and clear
during the late morning and into the early afternoon.

A strong storm system is expected to bring gale force southerly
winds late Friday morning through Friday night, with strongest winds
potentially touching 45 kt Friday evening. A Gale Warning has been
issued. A couple of large west swells will occur as well, the first
arriving tonight at 9 feet/17 sec/285 degrees and the second more
powerful swell arriving late Saturday and peaking at 17 feet/14
sec/270 degrees. The combination of large wind waves and the west
swells will create hazardous seas Thursday night through Sunday.
Periods of rain expected late Thursday night through Sunday, with
the heaviest rain and squalls Friday afternoon and Friday night.
There is even a slight chance of thunderstorms Friday evening
through Saturday morning.

&&

.BEACHES...
A large long-period west-northwest swell from 285 degrees will
create high surf conditions starting tonight/early Friday, with surf
of 5-9 ft with locally higher sets possible. Seas and surf will
build further Friday night, peaking Saturday at 17 ft/15 seconds
from the 270 degree direction then lowering gradually on Sunday.
This will result in very large, and potentially damaging surf of 15
ft by late Saturday. Relatively low high tides, around 4 to 4.5
feet, will mitigate significant coastal flooding threat, but some
low-lying coastal areas could still be at risk of minor coastal
flooding due to how high the surf could get. Powerful rip currents
will accompany the high surf as well. A Beach Hazards Statement has
been issued for an outlook for High Surf.

&&

.HYDROLOGY...
On Friday a strong Pacific storm along the West Coast will bring
periods of moderate to heavy rain through Saturday. The heaviest
band of rain will move slowly through the region Friday afternoon
and evening. Widespread rain will transition to scattered showers
early Saturday and continue showery all day. The greatest rain
amounts are expected over Orange County and the San Bernardino
Mountains, due in part to strong southerly winds ahead of the
trough on Friday afternoon and evening. Moderate to heavy rains
are possible in Riverside and San Diego Counties Friday night, but
the rain totals should be less. Snow levels will be high so there
is the potential for significant runoff in the mountains.

Areas with the greatest potential for flash flooding include all
of Orange County including the Santa Ana Mountains, the Cajon Pass
area and the Blue Cut fire burn scar and the upper Mojave river
basin.

2-DAY FORECAST RAINFALL TOTALS FOR FRIDAY AND SATURDAY...

ORANGE COUNTY...2 to 4 inches, locally 5 inches in the Santa Ana
mountains.

SAN BERNARDINO MOUNTAINS...3 TO 7 inches.

SAN DIEGO and RIVERSIDE COUNTIES...1 TO 2 inches, locally 3
inches.

UPPER AND LOWER DESERTS...0.25 to 1 inch.

Snow levels will mostly be above 6500 feet through Friday...then
lower to around 5000 feet Saturday.

&&

.SKYWARN...
Skywarn activation is not requested today, but will be requested
Friday. Highest impact period 2 PM to Midnight Friday. Damaging
winds and flash flooding concerns.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...High Wind Warning from 7 AM Friday to 2 AM PST Saturday for
     Apple and Lucerne Valleys-Coachella Valley-Orange County
     Coastal Areas-Orange County Inland Areas-San Bernardino and
     Riverside County Valleys-The Inland Empire-San Diego County
     Coastal Areas-San Diego County Deserts-San Diego County
     Mountains-San Diego County Valleys-San Gorgonio Pass Near
     Banning-Santa Ana Mountains and Foothills.

     Flash Flood Watch from Friday afternoon through Saturday
     afternoon for Apple and Lucerne Valleys-Coachella Valley-
     Orange County Coastal Areas-Orange County Inland Areas-
     Riverside County Mountains-San Bernardino County Mountains-
     San Bernardino and Riverside County Valleys-The Inland
     Empire-San Diego County Coastal Areas-San Diego County
     Deserts-San Diego County Mountains-San Diego County Valleys-
     San Gorgonio Pass Near Banning-Santa Ana Mountains and
     Foothills.

     Winter Storm Warning from 7 AM Friday to 7 AM PST Saturday for
     Riverside County Mountains-San Bernardino County Mountains.

     Beach Hazards Statement from late tonight through Sunday evening
     for Orange County Coastal Areas-San Diego County Coastal
     Areas.

PZ...Gale Warning from 7 AM Friday to 10 PM PST Sunday for Coastal
     Waters from San Mateo Point to the Mexican Border and out
     to 30 nm-Waters from San Mateo point to the Mexican Border
     Extending 30 to 60 nm out including San Clemente Island.

&&

PUBLIC...Gregoria
AVIATION/MARINE...Harrison