Alert archive / California / Winter Storm Warnings in 2011

Winter Storm Warning 2, NWS Los Angeles, CA

February 17, 2011

NWS Los Angeles, CA issued this winter storm warning at Feb 17, 2011, 2:42 PM PST. It took effect at Feb 18, 2011, 6:00 AM PST. It was in force for 27 hr. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Feb 17, 2011, 2:42 PM PST (22:42 UTC)
In effect from
Feb 18, 2011, 6:00 AM PST
Expired
Feb 19, 2011, 9:17 AM PST
In force
27 hr
Issued by
NWS Los Angeles, CA

The text

As transmitted, in the capitals the NWS used until 2016.

128 
WWUS46 KLOX 172242
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
242 PM PST THU FEB 17 2011

...HEAVY SNOW AND STRONG WINDS IN THE MOUNTAINS TONIGHT THROUGH
SATURDAY NIGHT...

.A POWERFUL WINTER STORM SYSTEM IN THE PACIFIC IS EXPECTED TO
BRING HEAVY SNOW AND STRONG WINDS TO THE HIGHER MOUNTAINS OF
SOUTHWESTERN CALIFORNIA. RAIN AND SNOW IS EXPECTED TO DEVELOP
ACROSS SANTA BARBARA COUNTY LATER TONIGHT...THEN SPREAD SLOWLY
SOUTHEASTWARD INTO LOS ANGELES COUNTY BY LATE FRIDAY AFTERNOON.
WINDY AND SNOWY CONDITIONS SHOULD THEN CONTINUE THROUGH SATURDAY
NIGHT.

CAZ052-180645-
/O.UPG.KLOX.WS.A.0003.110218T0800Z-110220T1100Z/
/O.NEW.KLOX.WS.W.0002.110218T1400Z-110220T1100Z/
SANTA BARBARA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...SAN MARCOS PASS...
SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA
242 PM PST THU FEB 17 2011

...WINTER STORM WARNING IN EFFECT FROM 6 AM FRIDAY TO 3 AM PST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT FROM 6 AM FRIDAY TO 3 AM PST SUNDAY. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT.

* SNOW ACCUMULATIONS: 12 TO 18 INCHES OF SNOW ARE POSSIBLE AT
  ELEVATIONS ABOVE 6000 FEET...WITH 4 TO 8 INCHES BETWEEN 4000 AND
  6000 FEET.

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP LATE TONIGHT THEN 
  TURN TO SHOWERS LATE FRIDAY NIGHT...BEFORE DIMINISHING 
  SATURDAY NIGHT. THERE WILL ALSO BE A SLIGHT CHANCE OF 
  THUNDERSTORMS FRIDAY NIGHT THROUGH SATURDAY NIGHT. 

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET TONIGHT...
  THEN RISE TO AROUND 5500 FEET ON FRIDAY...BEFORE DROPPING TO 
  AROUND 3500 FEET ON SATURDAY. 

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH 
  WITH POSSIBLE GUSTS TO 60 MPH LATE TONIGHT...THEN CONTINUE 
  INTO FRIDAY EVENING BEFORE SHIFTING TO THE WEST AND WEAKENING. 

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. THESE 
  CONDITIONS WILL BE DANGEROUS FOR ANYONE TRAVELING OR HIKING IN 
  THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA
FLASHLIGHT...FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN
EMERGENCY.

&&

$$

CAZ053-180645-
/O.UPG.KLOX.WS.A.0003.110218T1700Z-110220T1100Z/
/O.NEW.KLOX.WS.W.0002.110218T1700Z-110220T1600Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
242 PM PST THU FEB 17 2011

...WINTER STORM WARNING IN EFFECT FROM 9 AM FRIDAY TO 8 AM PST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT FROM 9 AM FRIDAY TO 8 AM PST SUNDAY. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT.

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE POSSIBLE AT
  ELEVATIONS ABOVE 6000 FEET...WITH 5 TO 10 INCHES BETWEEN 4000
  AND 6000 FEET.

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP FRIDAY MORNING OR
  AFTERNOON THEN TURN TO SHOWERS SATURDAY MORNING...BEFORE
  DIMINISHING SATURDAY NIGHT. THERE WILL ALSO BE A SLIGHT CHANCE
  OF THUNDERSTORMS FRIDAY NIGHT THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET FRIDAY 
  MORNING...THEN RISE TO AROUND 5500 FEET BY THE AFTERNOON...
  BEFORE DROPPING TO AROUND 3500 FEET ON SATURDAY. 

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH 
  WITH POSSIBLE GUSTS TO 60 MPH ON FRIDAY...THEN CONTINUE 
  THROUGH FRIDAY NIGHT BEFORE SHIFTING TO THE SOUTHWEST AND 
  WEAKENING. 

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. SNOW...WIND 
  AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER 
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&


$$

CAZ054-180645-
/O.UPG.KLOX.WS.A.0003.110218T2000Z-110220T1500Z/
/O.NEW.KLOX.WS.W.0002.110218T1700Z-110220T1600Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
242 PM PST THU FEB 17 2011

...WINTER STORM WARNING IN EFFECT FROM 9 AM FRIDAY TO 8 AM PST
SUNDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WINTER STORM WARNING FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT FROM 9 AM FRIDAY TO 8 AM PST SUNDAY. THE WINTER STORM WATCH
IS NO LONGER IN EFFECT.

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE POSSIBLE AT
  ELEVATIONS ABOVE 6000 FEET...WITH 5 TO 10 INCHES BETWEEN 4000
  AND 6000 FEET.

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP FRIDAY MORNING OR
  AFTERNOON THEN TURN TO SHOWERS SATURDAY MORNING...BEFORE
  DIMINISHING SATURDAY NIGHT. THERE WILL ALSO BE A SLIGHT CHANCE
  OF THUNDERSTORMS FRIDAY NIGHT THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET FRIDAY 
  MORNING...THEN RISE TO AROUND 5500 FEET BY THE AFTERNOON...
  BEFORE DROPPING TO AROUND 3500 FEET ON SATURDAY. 

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH 
  WITH POSSIBLE GUSTS TO 60 MPH ON FRIDAY...THEN CONTINUE 
  THROUGH FRIDAY NIGHT BEFORE SHIFTING TO THE SOUTHWEST AND 
  WEAKENING. 

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. SNOW...WIND 
  AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER 
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

WOFFORD
6 follow-up statements
193 
WWUS46 KLOX 180643
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1043 PM PST THU FEB 17 2011

...HEAVY SNOW AND STRONG WINDS IN THE MOUNTAINS FRIDAY THROUGH
SATURDAY NIGHT...

.A POWERFUL WINTER STORM SYSTEM IN THE PACIFIC IS EXPECTED TO
BRING HEAVY SNOW AND STRONG WINDS TO THE MOUNTAINS OF
SANTA BARBARA...VENTURA AND LOS ANGELES COUNTIES EXCLUDING THE
SANTA MONICA RANGE. RAIN AND SNOW IS EXPECTED TO DEVELOP ACROSS
SANTA BARBARA COUNTY EARLY FRIDAY MORNING...THEN SPREAD SLOWLY
SOUTHEASTWARD...REACHING LOS ANGELES COUNTY BY FRIDAY AFTERNOON.
STEADY PRECIPITATION WILL TURN TO SHOWERS FRIDAY NIGHT...BUT
NUMEROUS SHOWERS WILL CONTINUE THROUGH SATURDAY NIGHT. THERE WILL
BE A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY THROUGH SATURDAY NIGHT.

CAZ052-181415-
/O.CON.KLOX.WS.W.0002.110218T1400Z-110220T1100Z/
SANTA BARBARA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...SAN MARCOS PASS...
SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA
1043 PM PST THU FEB 17 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 6 AM FRIDAY TO
3 AM PST SUNDAY...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN
EFFECT FROM 6 AM FRIDAY TO 3 AM PST SUNDAY.

* SNOW ACCUMULATIONS: 12 TO 18 INCHES OF SNOW ARE EXPECTED AT
  ELEVATIONS ABOVE 5500 FEET...WITH 4 TO 8 INCHES BETWEEN 4000 AND
  5500 FEET.

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP BY MORNING...THEN
  CONTINUE HEAVY AT TIMES THROUGH FRIDAY EVENING. NUMEROUS SHOWERS
  WILL CONTINUE FRIDAY NIGHT THROUGH SATURDAY NIGHT. THERE WILL BE
  A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET TONIGHT...
  THEN RISE TO AROUND 5500 FEET ON FRIDAY...BEFORE DROPPING TO
  AROUND 3500 FEET ON SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 30 TO 45 MPH
  WITH GUSTS TO 70 MPH BY FRIDAY AFTERNOON...THEN CONTINUE THROUGH
  FRIDAY EVENING BEFORE SHIFTING TO THE WEST AND DIMINISHING
  SOMEWHAT LATE FRIDAY NIGHT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. THESE 
  CONDITIONS WILL BE DANGEROUS FOR ANYONE TRAVELING OR HIKING IN 
  THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ053-181415-
/O.CON.KLOX.WS.W.0002.110218T1700Z-110220T1600Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
1043 PM PST THU FEB 17 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM FRIDAY TO
8 AM PST SUNDAY...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN
EFFECT FROM 9 AM FRIDAY TO 8 AM PST SUNDAY.

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE EXPECTED AT
  ELEVATIONS ABOVE 5500 FEET...WITH 6 TO 12 INCHES BETWEEN 4000
  AND 5500 FEET. LOCAL TOTALS OVER 3 FEET ARE POSSIBLE AT THE
  HIGHEST ELEVATIONS. 

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP FRIDAY MORNING...THEN
  CONTINUE HEAVY AT TIMES THROUGH FRIDAY NIGHT. NUMEROUS SHOWERS
  WILL CONTINUE SATURDAY THROUGH EARLY SUNDAY MORNING. THERE WILL
  BE A SLIGHT CHANCE OF THUNDERSTORMS FRIDAY THROUGH SATURDAY
  NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET FRIDAY
  MORNING...THEN RISE TO AROUND 5500 FEET IN THE AFTERNOON...
  BEFORE DROPPING TO AROUND 3500 FEET ON SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH
  WITH GUSTS TO 70 MPH BY LATE FRIDAY...THEN CONTINUE THROUGH LATE
  FRIDAY NIGHT BEFORE SHIFTING TO THE SOUTHWEST AND DIMINISHING
  SOMEWHAT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. SNOW...WIND 
  AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER 
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ054-181415-
/O.CON.KLOX.WS.W.0002.110218T1700Z-110220T1600Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
1043 PM PST THU FEB 17 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM FRIDAY TO
8 AM PST SUNDAY...

A WINTER STORM WARNING FOR HEAVY SNOW AND BLOWING SNOW REMAINS IN
EFFECT FROM 9 AM FRIDAY TO 8 AM PST SUNDAY.

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE POSSIBLE AT
  ELEVATIONS ABOVE 5500 FEET...WITH 6 TO 12 INCHES BETWEEN 4000
  AND 5500 FEET. LOCAL TOTALS OVER 3 FEET ARE POSSIBLE AT THE
  HIGHEST ELEVATIONS. 

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP LATE FRIDAY MORNING OR
  EARLY AFTERNOON...THEN CONTINUE HEAVY AT TIMES THROUGH EARLY
  SATURDAY MORNING. NUMEROUS SHOWERS WILL CONTINUE SATURDAY
  THROUGH EARLY SUNDAY MORNING. THERE WILL BE A SLIGHT CHANCE OF
  THUNDERSTORMS FRIDAY THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET FRIDAY
  MORNING...THEN RISE TO AROUND 5500 FEET IN THE AFTERNOON...
  BEFORE DROPPING TO AROUND 3500 FEET ON SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH 
  WITH POSSIBLE GUSTS TO 60 MPH ON FRIDAY...THEN CONTINUE 
  THROUGH FRIDAY NIGHT BEFORE SHIFTING TO THE SOUTHWEST AND 
  WEAKENING. 

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. TRAVEL INTO OR
  THROUGH THE MOUNTAINS...INCLUDING ON INTERSTATE 5 THROUGH THE
  GRAPEVINE AND AT HIGHER ELEVATIONS OF HIGHWAY 14...WILL LIKELY
  BE TREACHEROUS AT TIMES LATE FRIDAY THROUGH EARLY SUNDAY.
  SNOW...WIND AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS
  WINTER CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE
  MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

DB
000 
WWUS46 KLOX 181311
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
510 AM PST FRI FEB 18 2011

...HEAVY SNOW AND STRONG WINDS IN THE MOUNTAINS TODAY THROUGH
SATURDAY NIGHT...

.A POWERFUL WINTER STORM WILL BRING HEAVY SNOW AND STRONG WINDS
TO THE MOUNTAINS OF SANTA BARBARA...VENTURA AND LOS ANGELES
COUNTIES EXCLUDING THE SANTA MONICA RANGE TODAY THROUGH SATURDAY
NIGHT. RAIN AND SNOW WILL OVERSPREAD SANTA BARBARA COUNTY THIS
MORNING...THEN SPREAD SOUTHEASTWARD...REACHING LOS ANGELES COUNTY
BY MID OR LATE AFTERNOON. STEADY PRECIPITATION WILL TURN TO SHOWERS
OVERNIGHT...BUT NUMEROUS SHOWERS WILL CONTINUE THROUGH SATURDAY
NIGHT. THERE WILL BE A CHANCE OF THUNDERSTORMS THIS AFTERNOON THROUGH
SATURDAY NIGHT.

CAZ052-182115-
/O.CON.KLOX.WS.W.0002.110218T1400Z-110220T1100Z/
SANTA BARBARA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...SAN MARCOS PASS...
SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA
510 AM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 12 TO 18 INCHES OF SNOW ARE EXPECTED AT 
  ELEVATIONS ABOVE 5500 FEET...WITH 4 TO 8 INCHES BETWEEN 4000 
  AND 5500 FEET. 

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP THIS MORNING...THEN
  CONTINUE HEAVY AT TIMES THROUGH THE EVENING. NUMEROUS SHOWERS
  WILL CONTINUE OVERNIGHT THROUGH SATURDAY NIGHT. THERE WILL BE A
  CHANCE OF THUNDERSTORMS THIS AFTERNOON THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET...THEN RISE
  TO AROUND 5500 FEET LATE THIS MORNING...BEFORE DROPPING TO
  AROUND 3500 FEET ON SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 30 TO 45 MPH
  WITH GUSTS TO 70 MPH BY AFTERNOON...THEN CONTINUE THROUGH THE
  EVENING BEFORE SHIFTING TO THE WEST AND DIMINISHING SOMEWHAT
  LATE TONIGHT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. THESE 
  CONDITIONS WILL BE DANGEROUS FOR ANYONE TRAVELING OR HIKING IN 
  THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ053-182115-
/O.CON.KLOX.WS.W.0002.110218T1700Z-110220T1600Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
510 AM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 8 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 8 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE EXPECTED AT 
  ELEVATIONS ABOVE 5500 FEET...WITH 6 TO 12 INCHES BETWEEN 4000 
  AND 5500 FEET. LOCAL TOTALS OVER 3 FEET ARE POSSIBLE AT THE 
  HIGHEST ELEVATIONS. 

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP BY EARLY AFTERNOON...
  THEN CONTINUE HEAVY AT TIMES THROUGH TONIGHT. NUMEROUS SHOWERS
  WILL OCCUR SATURDAY THROUGH EARLY SUNDAY MORNING. THERE WILL BE
  A CHANCE OF THUNDERSTORMS THIS AFTERNOON THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET THIS
  MORNING...THEN RISE TO AROUND 5500 FEET BY NOON...BEFORE
  DROPPING TO AROUND 3500 FEET SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH
  WITH GUSTS TO 70 MPH BY LATE THIS AFTERNOON AND THEN CONTINUE
  THROUGH LATE TONIGHT BEFORE SHIFTING TO THE SOUTHWEST AND
  DIMINISHING SOMEWHAT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. SNOW...WIND 
  AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER 
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ054-182115-
/O.CON.KLOX.WS.W.0002.110218T1700Z-110220T1600Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
510 AM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 8 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT FROM 9 AM THIS MORNING
TO 8 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE POSSIBLE AT 
  ELEVATIONS ABOVE 5500 FEET...WITH 6 TO 12 INCHES BETWEEN 4000 
  AND 5500 FEET. LOCAL TOTALS OVER 3 FEET ARE POSSIBLE AT THE 
  HIGHEST ELEVATIONS. 

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP BY EARLY
  AFTERNOON...THEN CONTINUE HEAVY AT TIMES THROUGH LATE TONIGHT.
  NUMEROUS SHOWERS WILL OCCUR SATURDAY THROUGH EARLY SUNDAY
  MORNING. THERE WILL BE A CHANCE OF THUNDERSTORMS THIS AFTERNOON
  THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BEGIN AROUND 4500 FEET THIS
  MORNING...THEN RISE TO AROUND 5500 FEET DURING THE AFTERNOON...
  BEFORE DROPPING TO AROUND 3500 FEET SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH
  WITH POSSIBLE GUSTS TO 60 MPH LATER THIS AFTERNOON AND THEN
  CONTINUE OVERNIGHT BEFORE SHIFTING TO THE SOUTHWEST AND
  WEAKENING.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. TRAVEL INTO OR
  THROUGH THE MOUNTAINS...INCLUDING ON INTERSTATE 5 THROUGH THE
  GRAPEVINE AND AT HIGHER ELEVATIONS OF HIGHWAY 14...WILL LIKELY
  BE TREACHEROUS AT TIMES LATE TODAY THROUGH EARLY SUNDAY.
  SNOW...WIND AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS
  WINTER CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE
  MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

ASR/DB
671 
WWUS46 KLOX 182058
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1258 PM PST FRI FEB 18 2011

...HEAVY SNOW AND STRONG WINDS IN THE MOUNTAINS TODAY THROUGH
SATURDAY NIGHT...

.A POWERFUL WINTER STORM WILL BRING HEAVY SNOW AND STRONG WINDS
TO THE MOUNTAINS OF SANTA BARBARA...VENTURA AND LOS ANGELES
COUNTIES EXCLUDING THE SANTA MONICA RANGE TODAY THROUGH SATURDAY
NIGHT. RAIN AND SNOW WILL OVERSPREAD SANTA BARBARA COUNTY EARLY
THIS AFTERNOON...THEN SPREAD SOUTHEASTWARD...REACHING LOS ANGELES
COUNTY BY LATE AFTERNOON OR EARLY EVENING. STEADY PRECIPITATION
WILL TURN TO SHOWERS OVERNIGHT...BUT NUMEROUS SHOWERS WILL
CONTINUE THROUGH SATURDAY NIGHT. THERE WILL BE A CHANCE OF
THUNDERSTORMS THIS AFTERNOON THROUGH SATURDAY NIGHT.

CAZ052-190615-
/O.CON.KLOX.WS.W.0002.000000T0000Z-110220T1100Z/
SANTA BARBARA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...SAN MARCOS PASS...
SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA
1258 PM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 12 TO 18 INCHES OF SNOW ARE EXPECTED AT 
  ELEVATIONS ABOVE 5500 FEET...WITH 4 TO 8 INCHES BETWEEN 4000 
  AND 5500 FEET. 

* TIMING: STEADY RAIN AND SNOW WILL CONTINUE TO DEVELOP THIS
  AFTERNOON. PRECIPITATION WILL BE HEAVY AT TIMES THROUGH THIS
  EVENING. NUMEROUS SHOWERS WILL CONTINUE TONIGHT THROUGH SATURDAY
  NIGHT. THERE WILL BE A CHANCE OF THUNDERSTORMS THIS AFTERNOON
  THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL REMAIN AROUND 550O FEET THROUGH
  THIS AFTERNOON...BEFORE DROPPING TO AROUND 3500 FEET BY
  SATURDAY. 

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 30 TO 45 MPH
  THIS AFTERNOON WITH GUSTS TO 70 MPH...THEN CONTINUE THROUGH THE
  EVENING BEFORE SHIFTING TO THE WEST AND DIMINISHING SOMEWHAT
  LATE TONIGHT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. THESE 
  CONDITIONS WILL BE DANGEROUS FOR ANYONE TRAVELING OR HIKING IN 
  THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ053-190615-
/O.CON.KLOX.WS.W.0002.000000T0000Z-110220T1600Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
1258 PM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE EXPECTED AT 
  ELEVATIONS ABOVE 5500 FEET...WITH 6 TO 12 INCHES BETWEEN 4000 
  AND 5500 FEET. LOCAL TOTALS OVER 3 FEET ARE POSSIBLE AT THE 
  HIGHEST ELEVATIONS. 

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP THIS AFTERNOON...THEN
  CONTINUE HEAVY AT TIMES THROUGH TONIGHT. NUMEROUS SHOWERS WILL
  OCCUR SATURDAY THROUGH EARLY SUNDAY MORNING. THERE WILL BE A
  CHANCE OF THUNDERSTORMS THIS AFTERNOON THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL REMAIN AROUND 5500 FEET THROUGH
  THIS AFTERNOON...BEFORE DROPPING TO AROUND 3500 FEET BY
  SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH
  LATER THIS AFTERNOON WITH GUSTS TO 70 MPH...THEN CONTINUE
  THROUGH LATE TONIGHT BEFORE SHIFTING TO THE SOUTHWEST AND
  DIMINISHING SOMEWHAT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. SNOW...WIND 
  AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER 
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ054-190615-
/O.CON.KLOX.WS.W.0002.000000T0000Z-110220T1600Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
1258 PM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE POSSIBLE AT 
  ELEVATIONS ABOVE 5500 FEET...WITH 6 TO 12 INCHES BETWEEN 4000 
  AND 5500 FEET. LOCAL TOTALS OVER 3 FEET ARE POSSIBLE AT THE 
  HIGHEST ELEVATIONS. 

* TIMING: STEADY RAIN AND SNOW WILL DEVELOP THIS AFTERNOON...THEN
  CONTINUE HEAVY AT TIMES THROUGH LATE TONIGHT. NUMEROUS SHOWERS
  WILL OCCUR SATURDAY THROUGH EARLY SUNDAY MORNING. THERE WILL BE
  A CHANCE OF THUNDERSTORMS THIS AFTERNOON THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL REMAIN AROUND 5500 FEET THROUGH
  THIS AFTERNOON...BEFORE DROPPING TO AROUND 3500 FEET BY
  SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS WILL INCREASE TO 25 TO 40 MPH
  LATER THIS AFTERNOON WITH GUSTS TO 60 MPH...THEN CONTINUE
  OVERNIGHT BEFORE SHIFTING TO THE SOUTHWEST AND WEAKENING.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. TRAVEL INTO 
  OR THROUGH THE MOUNTAINS...INCLUDING ON INTERSTATE 5 THROUGH 
  THE GRAPEVINE AND AT HIGHER ELEVATIONS OF HIGHWAY 14...WILL 
  LIKELY BE TREACHEROUS AT TIMES LATE TODAY THROUGH EARLY 
  SUNDAY. SNOW... WIND AND LOW WIND CHILL VALUES WILL MAKE FOR 
  DANGEROUS WINTER CONDITIONS FOR ANYONE TRAVELING OR HIKING IN 
  THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

RAT/WOFFORD
951 
WWUS46 KLOX 190615
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1015 PM PST FRI FEB 18 2011

...HEAVY SNOW AND STRONG WINDS IN THE MOUNTAINS THROUGH SATURDAY
NIGHT...

.A POWERFUL WINTER STORM WILL BRING HEAVY SNOW AND STRONG WINDS
TO THE MOUNTAINS OF SANTA BARBARA...VENTURA AND LOS ANGELES
COUNTIES EXCLUDING THE SANTA MONICA RANGE TONIGHT THROUGH
SATURDAY NIGHT. STEADY PRECIPITATION THIS EVENING WILL TURN TO
SHOWERS OVERNIGHT...BUT NUMEROUS SHOWERS WILL CONTINUE THROUGH
SATURDAY NIGHT. THERE WILL ALSO BE A CHANCE OF THUNDERSTORMS
TONIGHT THROUGH SATURDAY NIGHT.

CAZ052-191415-
/O.CON.KLOX.WS.W.0002.000000T0000Z-110220T1100Z/
SANTA BARBARA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...SAN MARCOS PASS...
SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA
1015 PM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 6 TO 12 INCHES OF SNOW ARE EXPECTED AT
  ELEVATIONS ABOVE 5500 FEET...WITH 4 TO 8 INCHES BETWEEN 4000 AND
  5500 FEET.

* TIMING: NUMEROUS SHOWERS ALONG WITH A CHANCE OF THUNDERSTORMS
  WILL CONTINUE TONIGHT THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BE 4500 TO 5500 FEET THROUGH THIS
  EVENING...BEFORE DROPPING QUICKLY TO AROUND 3500 FEET BY
  SATURDAY.

* WINDS: SOUTH TO SOUTHWEST WINDS 15 TO 25 MPH WITH GUSTS TO 35
  MPH CAN BE EXPECTED TONIGHT THEN DIMINISH TO 10 TO 20 MPH WITH
  LOCAL GUSTS TO 30 MPH ON SATURDAY.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. THESE 
  CONDITIONS WILL BE DANGEROUS FOR ANYONE TRAVELING OR HIKING IN 
  THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ053-191415-
/O.CON.KLOX.WS.W.0002.000000T0000Z-110220T1600Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
1015 PM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 8 TO 16 INCHES OF SNOW ARE EXPECTED AT
  ELEVATIONS ABOVE 5500 FEET...WITH 6 TO 12 INCHES BETWEEN 4000
  AND 5500 FEET. LOCAL TOTALS UP TO 2 FEET ARE POSSIBLE AT THE
  HIGHEST ELEVATIONS.

* TIMING: NUMEROUS SNOW SHOWERS WILL CONTINUE TONIGHT THROUGH
  EARLY SUNDAY MORNING. THERE WILL ALSO BE A CHANCE OF
  THUNDERSTORMS TONIGHT THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BE AROUND 5000 TONIGHT...BEFORE
  DROPPING QUICKLY TO AROUND 3500 FEET BY EARLY SATURDAY.

* WINDS: SOUTH WINDS 25 TO 35 MPH WITH LOCAL GUSTS TO 45 MPH WILL
  SHIFT TO SOUTHWEST AND DIMINISH SOMEWHAT LATER TONIGHT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. SNOW...WIND 
  AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER 
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ054-191415-
/O.CON.KLOX.WS.W.0002.000000T0000Z-110220T1600Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
1015 PM PST FRI FEB 18 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 8 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: 12 TO 24 INCHES OF SNOW ARE POSSIBLE AT 
  ELEVATIONS ABOVE 5500 FEET...WITH 6 TO 12 INCHES BETWEEN 4000 
  AND 5500 FEET. LOCAL TOTALS OVER 3 FEET ARE POSSIBLE AT THE 
  HIGHEST ELEVATIONS. 

* TIMING: NUMEROUS SNOW SHOWERS WILL CONTINUE TONIGHT THROUGH
  EARLY SUNDAY MORNING. THERE WILL ALSO BE A CHANCE OF
  THUNDERSTORMS TONIGHT THROUGH SATURDAY NIGHT.

* SNOW LEVELS: SNOW LEVELS WILL BE AROUND 5500 TO 6500 FEET EXCEPT
  AS LOW AS 4500 FEET ON THE NORTH SLOPES TONIGHT...BEFORE FALLING
  QUICKLY TO AROUND 3500 FEET BY EARLY SATURDAY.

* WINDS: SOUTHEAST TO SOUTH WINDS 25 TO 40 MPH WITH GUSTS OVER 60
  MPH WILL CONTINUE OVERNIGHT BEFORE SHIFTING TO THE SOUTHWEST
  AND WEAKENING.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. TRAVEL INTO OR
  THROUGH THE MOUNTAINS...INCLUDING ON INTERSTATE 5 THROUGH THE
  GRAPEVINE AND AT HIGHER ELEVATIONS OF HIGHWAY 14...WILL LIKELY
  BE TREACHEROUS AT TIMES LATE TODAY THROUGH EARLY SUNDAY. SNOW...
  WIND AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$
639 
WWUS46 KLOX 191243
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
443 AM PST SAT FEB 19 2011

...PERIODS OF SNOW AND GUSTY WINDS IN THE MOUNTAINS THROUGH
LATE TONIGHT...

.A STRONG UPPER LOW IN THE PACIFIC WILL MOVE TOWARD THE COAST
TODAY AND ACROSS CALIFORNIA TONIGHT. COLD...MOIST AND UNSTABLE AIR
ASSOCIATED WITH THIS UPPER LOW WILL BRING NUMEROUS SHOWERS TO
THE MOUNTAINS TODAY AND TONIGHT. THERE WILL ALSO BE A SLIGHT
CHANCE OF THUNDERSTORMS. GUSTY SOUTHWEST WINDS WILL ALSO CONTINUE
THROUGH TONIGHT. SNOW LEVELS WILL GENERALLY AVERAGE 3500 TO 4000
FEET TODAY...THEN WILL LOWER TO BETWEEN 3000 AND 3500 FEET
TONIGHT. HOWEVER SNOW LEVELS WILL BE LOWER IN HEAVIER SHOWERS.
ACCUMULATING SNOW MAY AFFECT HIGHER PORTIONS OF INTERSTATE 5
ACROSS THE GRAPEVINE THROUGH TONIGHT.

CAZ053-192045-
/O.EXT.KLOX.WS.W.0002.000000T0000Z-110220T1100Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
443 AM PST SAT FEB 19 2011

...WINTER STORM WARNING NOW IN EFFECT UNTIL 3 AM PST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 3 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 8 TO 14
  INCHES ARE EXPECTED AT ELEVATIONS ABOVE 5000 FEET...WITH 3 TO 7
  INCHES BETWEEN 4000 AND 5000 FEET.

* TIMING: NUMEROUS SNOW SHOWERS WILL CONTINUE THROUGH LATE
  TONIGHT...ALONG WITH A SLIGHT CHANCE OF THUNDERSTORMS.

* SNOW LEVELS: SNOW LEVELS WILL BE BETWEEN 3500 AND 4000 FEET
  TODAY...AND BETWEEN 3000 AND 3500 FEET TONIGHT. SNOW LEVELS WILL
  BE LOCALLY LOWER IN HEAVY SHOWERS. 

* WINDS: SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL
  CONTINUE THROUGH LATER TONIGHT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. SNOW...WIND 
  AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER 
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ054-192045-
/O.EXT.KLOX.WS.W.0002.000000T0000Z-110220T1100Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
443 AM PST SAT FEB 19 2011

...WINTER STORM WARNING NOW IN EFFECT UNTIL 3 AM PST SUNDAY...

THE WINTER STORM WARNING IS NOW IN EFFECT UNTIL 3 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 8 TO 14
  INCHES ARE EXPECTED AT ELEVATIONS ABOVE 5000 FEET...WITH 3 TO 7
  INCHES BETWEEN 4000 AND 5000 FEET.

* TIMING: NUMEROUS SNOW SHOWERS WILL CONTINUE THROUGH LATE
  TONIGHT...ALONG WITH A SLIGHT CHANCE OF THUNDERSTORMS.

* SNOW LEVELS: SNOW LEVELS WILL BE BETWEEN 3500 AND 4000 FEET
  TODAY...AND BETWEEN 3000 AND 3500 FEET TONIGHT. SNOW LEVELS WILL
  BE LOCALLY LOWER IN HEAVY SHOWERS.

* WINDS: SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL
  CONTINUE THROUGH LATER TONIGHT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. TRAVEL INTO OR
  THROUGH THE MOUNTAINS...POSSIBLY INCLUDING INTERSTATE 5 THROUGH
  THE GRAPEVINE AND AT HIGHER ELEVATIONS OF HIGHWAY 14...WILL
  LIKELY BE TREACHEROUS AT TIMES THROUGH TONIGHT. SNOW... WIND
  AND LOW WIND CHILL VALUES WILL MAKE FOR DANGEROUS WINTER
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING.  SIGNIFICANT AMOUNTS OF
SNOW ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN
AN EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...
FOOD...AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

CAZ052-192045-
/O.CON.KLOX.WS.W.0002.000000T0000Z-110220T1100Z/
SANTA BARBARA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...SAN MARCOS PASS...
SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA
443 AM PST SAT FEB 19 2011

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SUNDAY. 

* SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 5 TO 10
  INCHES ARE EXPECTED ABOVE 5000 FEET...WITH 3 TO 6 INCHES BETWEEN
  4000 AND 5000 FEET.

* TIMING: NUMEROUS SNOW SHOWERS WILL CONTINUE THROUGH LATE
  TONIGHT...ALONG WITH A SLIGHT CHANCE OF THUNDERSTORMS.

* SNOW LEVELS:  SNOW LEVELS WILL BE BETWEEN 3500 AND 4000 FEET
  TODAY...AND BETWEEN 3000 AND 3500 FEET TONIGHT. SNOW LEVELS WILL
  BE LOCALLY LOWER IN HEAVY SHOWERS.

* WINDS: SOUTHWEST WINDS 20 TO 30 MPH WITH GUSTS TO 45 MPH WILL
  CONTINUE THROUGH LATER TONIGHT.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. THESE 
  CONDITIONS WILL BE DANGEROUS FOR ANYONE TRAVELING OR HIKING IN 
  THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR OCCURRING. SIGNIFICANT AMOUNTS OF SNOW
ARE FORECAST THAT WILL MAKE TRAVEL DANGEROUS. ONLY TRAVEL IN AN
EMERGENCY. IF YOU MUST TRAVEL...KEEP AN EXTRA FLASHLIGHT...FOOD...
AND WATER IN YOUR VEHICLE IN CASE OF AN EMERGENCY.

&&

$$

DB/ASR
857 
WWUS46 KLOX 191717
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
917 AM PST SAT FEB 19 2011

...WINTER WEATHER ADVISORIES FOR THE SOUTHERN CALIFORNIA MOUNTAINS...

.A COLD AND UNSTABLE AIR MASS WILL CONTINUE TO PRODUCE SHOWERS AND 
A SLIGHT CHANCE OF THUNDERSTORMS ACROSS THE MOUNTAINS OF SANTA
BARBARA...VENTURA AND LOS ANGELES COUNTIES THROUGH TONIGHT. WITH
SNOW LEVELS AROUND 3500 FEET...MOUNTAIN AREAS CAN EXPECT ADDITIONAL
SNOWFALL BETWEEN 3 AND 7 INCHES THROUGH TONIGHT...ALTHOUGH AMOUNTS
WILL BE HIGHLY VARIABLE DUE TO THE SHOWERY NATURE OF THE
PRECIPITATION. IN HEAVIER SHOWERS AND THUNDERSTORMS...SNOW LEVELS
COULD BRIEFLY DROP TO AROUND 2500 FEET.

ALONG WITH THE SHOWER ACTIVITY...SOUTHWESTERLY WINDS ARE EXPECTED
TO INCREASE LATER TODAY...WITH GUSTS TO AROUND 40 MPH POSSIBLE IN
SOME AREAS. 

GIVEN THE LOW SNOW LEVELS...MANY MOUNTAIN ROADWAYS WILL LIKELY BE
IMPACTED BY WINTER WEATHER CONDITIONS...INCLUDING HIGHWAY 14 AND 
INTERSTATE 5 THROUGH THE GRAPEVINE. THE COMBINATION OF SNOW AND
WINDS WILL PRODUCE DANGEROUS TRAVELING CONDITIONS...INCLUDING
REDUCED VISIBILITIES. 

DUE TO THE EXPECTATION OF WEAKER WINDS AND LESS SNOWFALL...WINTER
STORM CONDITIONS ARE NOT ANTICIPATED. THEREFORE...THE WINTER STORM
WARNINGS HAVE BEEN DOWNGRADED TO WINTER WEATHER ADVISORIES. 

CAZ052-200000-
/O.CAN.KLOX.WS.W.0002.000000T0000Z-110220T1100Z/
/O.NEW.KLOX.WW.Y.0004.110219T1717Z-110220T1100Z/
SANTA BARBARA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...SAN MARCOS PASS...
SAN RAFAEL WILDERNESS AREA...DICK SMITH WILDERNESS AREA
917 AM PST SAT FEB 19 2011

...WINTER STORM WARNING IS CANCELLED...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN 
EFFECT UNTIL 3 AM PST SUNDAY. THE WINTER STORM WARNING HAS BEEN
CANCELLED.

* SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 3 TO 7
  INCHES ARE EXPECTED. THE SNOWFALL AMOUNTS WILL BE HIGHLY
  VARIABLE DUE TO THE SHOWERY NATURE OF THE SNOWFALL.

* TIMING: ISOLATED SHOWER ACTIVITY THIS MORNING WILL BECOME
  NUMEROUS THIS AFTERNOON...ALONG WITH A SLIGHT CHANCE OF
  THUNDERSTORMS.

* SNOW LEVELS: SNOW LEVELS WILL BE AROUND 3500 FEET TODAY...BUT
  WILL DROP TO AROUND 3000 FEET TONIGHT. IN HEAVIER SHOWERS AND
  THUNDERSTORMS...SNOW LEVELS COULD BRIEFLY LOWER TO AROUND 2500
  FEET. 

* WINDS: SOUTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH WITH LOCAL
  GUSTS TO 40 MPH.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE 
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. THESE 
  CONDITIONS WILL BE DANGEROUS FOR ANYONE TRAVELING OR HIKING IN 
  THE MOUNTAINS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

CAZ053-200000-
/O.CAN.KLOX.WS.W.0002.000000T0000Z-110220T1100Z/
/O.NEW.KLOX.WW.Y.0004.110219T1717Z-110220T1100Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
917 AM PST SAT FEB 19 2011

...WINTER STORM WARNING IS CANCELLED...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT UNTIL 3 AM PST SUNDAY. THE WINTER STORM WARNING HAS BEEN
CANCELLED.

* SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 3 TO 7
  INCHES ARE EXPECTED. THE SNOWFALL AMOUNTS WILL BE HIGHLY
  VARIABLE DUE TO THE SHOWERY NATURE OF THE SNOWFALL.

* TIMING: ISOLATED SHOWER ACTIVITY THIS MORNING WILL BECOME
  NUMEROUS THIS AFTERNOON...ALONG WITH A SLIGHT CHANCE OF
  THUNDERSTORMS.

* SNOW LEVELS: SNOW LEVELS WILL RANGE BETWEEN 3500 AND 4000 FEET
  TODAY...BUT WILL DROP TO BETWEEN 3000 AND 3500 FEET TONIGHT. IN
  HEAVIER SHOWERS AND THUNDERSTORMS...SNOW LEVELS COULD BRIEFLY
  DROP TO AROUND 2500 FEET. 

* WINDS: SOUTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH WITH LOCAL
  GUSTS TO 40 MPH.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS...INCLUDING
  HIGHWAY 33. SNOW AND WIND WILL MAKE FOR DANGEROUS WINTER
  CONDITIONS FOR ANYONE TRAVELING OR HIKING IN THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

CAZ054-200000-
/O.CAN.KLOX.WS.W.0002.000000T0000Z-110220T1100Z/
/O.NEW.KLOX.WW.Y.0004.110219T1717Z-110220T1100Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
917 AM PST SAT FEB 19 2011

...WINTER STORM WARNING IS CANCELLED...
...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 AM PST SUNDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WINTER WEATHER ADVISORY FOR SNOW AND BLOWING SNOW...WHICH IS IN
EFFECT UNTIL 3 AM PST SUNDAY. THE WINTER STORM WARNING HAS BEEN
CANCELLED.

* SNOW ACCUMULATIONS: ADDITIONAL SNOW ACCUMULATIONS OF 3 TO 7
  INCHES ARE EXPECTED. THE SNOWFALL AMOUNTS WILL BE HIGHLY
  VARIABLE DUE TO THE SHOWERY NATURE OF THE SNOWFALL.

* TIMING: ISOLATED SHOWER ACTIVITY THIS MORNING WILL BECOME
  NUMEROUS THIS AFTERNOON...ALONG WITH A SLIGHT CHANCE OF
  THUNDERSTORMS.

* SNOW LEVELS: SNOW LEVELS WILL RANGE BETWEEN 3500 AND 4000 FEET
  TODAY...BUT WILL DROP TO BETWEEN 3000 AND 3500 FEET TONIGHT. IN
  HEAVIER SHOWERS AND THUNDERSTORMS...SNOW LEVELS COULD BRIEFLY
  DROP TO AROUND 2500 FEET. 

* WINDS: SOUTHWEST WINDS WILL INCREASE TO 15 TO 25 MPH WITH LOCAL
  GUSTS TO 40 MPH.

* IMPACTS: THE COMBINATION OF SNOW AND BLOWING SNOW WILL CAUSE
  NEAR ZERO VISIBILITIES AT TIMES IN THE MOUNTAINS. TRAVEL INTO OR
  THROUGH THE MOUNTAINS...INCLUDING INTERSTATE 5 THROUGH THE
  GRAPEVINE AND AT HIGHER ELEVATIONS OF HIGHWAY 14...WILL LIKELY
  BE TREACHEROUS AT TIMES THROUGH TONIGHT. SNOW AND WIND WILL
  MAKE FOR DANGEROUS WINTER CONDITIONS FOR ANYONE TRAVELING OR
  HIKING IN THE MOUNTAINS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER WEATHER ADVISORY MEANS THAT PERIODS OF SNOW...SLEET...OR
FREEZING RAIN WILL CAUSE TRAVEL DIFFICULTIES. BE PREPARED FOR
SLIPPERY ROADS AND LIMITED VISIBILITIES...AND USE CAUTION WHILE
DRIVING.

&&

$$

RAT/DD

What forecasters said that day

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

NWS Los Angeles, CA wrote its last area forecast discussion before this winter storm warning went out at Feb 17, 2:00 PM PST, 42 minutes earlier.

Area forecast discussion, Feb 17, 2:00 PM PST, 42 minutes before
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
200 PM PST THU FEB 17 2011

.SYNOPSIS...A COLD UPPER LOW WILL BRING PERIODS OF HEAVY RAIN AND
MOUNTAIN SNOW TO THE AREA STARTING TONIGHT AND CONTINUING THROUGH
SATURDAY NIGHT. DRY AND COOL WEATHER IS EXPECTED SUNDAY AND MONDAY.
ANOTHER COLD LOW PRESSURE SYSTEM WILL MOVE INTO THE AREA NEXT
TUESDAY AND WEDNESDAY WITH A SLIGHT CHANCE OF SHOWERS.

&&

.SHORT TERM (TODAY-SUN)...THE LEADING EDGE OF THE FIRST WAVE OF
PRECIP IS MOVING INTO NW SLO COUNTY THIS AFTERNOON. WITH THE UPPER
LOW DROPPING ALMOST DUE SOUTH JUST OFF THE COAST TONIGHT THE MODELS
ACTUALLY DON'T SHOW MUCH IN THE WAY OF SOUTHEASTWARD PROPOGATION OF
THE FRONT. HOWEVER, INCREASING SOUTH FLOW AHEAD OF THE FRONT ALONG
WITH A MOISTENING OF THE LOWER LVLS SHOULD LEAD TO AT LEAST SOME
SHOWER DEVELOPMENT AS FAR SOUTH AS VENTURA COUNTY AS WELL AS THE LA
COUNTY FOOTHILLS AND MOUNTAINS OVERNIGHT.

THE EASTWARD MOVEMENT OF THE FRONT WILL PICK UP PACE FRIDAY AND
FRIDAY NIGHT AS THE TROF STARTS TO MOVE EAST. AS THIS HAPPENS, RAIN
WILL SPREAD OVER THE ENTIRE AREA AND BECOME HEAVY AT TIMES,
ESPECIALLY ALONG THE SOUTH FACING SLOPES AND IN NW SLO COUNTY. THE
EXTREME SOUTHEASTERN PORTION OF LA COUNTY MAY NOT SEE MUCH RAIN
UNTIL LATE IN THE DAY OR EARLY EVENING.

STRONG SOUTHERLY FLOW AHEAD OF THE FRONT WILL BRING GUSTY WINDS TO
THE AREA THROUGH FRIDAY NIGHT. ALREADY SEEING SOME OF THIS ALONG THE
CENTRAL COAST BUT IT WILL SPREAD FURTHER EAST TONIGHT AND FRIDAY.
WIND ADVISORIES HAVE BEEN ISSUED FOR EVERYWHERE NORTH OF PT
CONCEPTION TONIGHT AND FRIDAY AS WELL AS THE SMO MOUNTAINS AND
ANTELOPE VALLEY FOR FRIDAY. COULD SEE OTHER AREAS PUSHING THE
ADVISORY ENVELOPE BUT MOST OF THOSE AREAS WILL REMAIN BELOW
ADVISORY LEVELS.

STILL LOOKS LIKE THE BULK OF THE ACTION WITH THIS STORM WILL BE
FRIDAY NIGHT WITH THE COLD FRONT PASSING AND PERIODS OF HEAVY RAIN
AND SNOW, FOLLOWED BY A LENGTHY PERIOD OF POTENTIALLY CONVECTIVE
ACTIVITY SATURDAY INTO SATURDAY EVENING. WHILE THERE SHOULD BE A
6-12 HOUR RELATIVE LULL IN ACTIVITY BEHIND THE FRONT FRIDAY NIGHT
INTO EARLY SATURDAY, THE AIRMASS WILL BE RATHER UNSTABLE SO SHOWERS
AND THUNDERSTORMS POSSIBLE JUST ABOUT ANYWHERE DURING THAT TIME. A
SECONDARY COLD FRONT WILL BRING ANOTHER ROUND OF STEADY PRECIP
SATURDAY AFTERNOON AND EVENING.

SNOW LEVELS WILL START AROUND 4500 FEET THIS EVENING BUT RISE TO
BETWEEN 5500 AND 6000 FEET FRIDAY AS WARM AIR ADVECTS IN AHEAD OF
THE COLD FRONT OFFSHORE. THESE LEVELS WILL COME CRASHING DOWN LATE
FRIDAY NIGHT INTO SATURDAY AS COLD AIR POURS IN BEHIND THE FRONT.
IT'S DURING THIS TIME THAT THERE COULD BE SIGNIFICANT IMPACTS TO THE
GRAPEVINE AND OTHER ROADS ABOVE 3500 FEET. WENT AHEAD AND CONVERTED
WINTER STORM WATCHES TO WARNINGS, BEGINING LATE TONIGHT FOR SBA
COUNTY MTNS AND FRIDAY FOR THE LA/VENTURA MTNS.

RAIN/SNOW AMOUNTS FROM PREVIOUS SHIFTS STILL LOOK GOOD. 1-3/3-6"
CST/MTNS WITH 1-2 FT OF SNOW FOR HIGHER MTN ELEVATIONS.

SHOWERS/TSTORMS EXPECTED TO WIND DOWN SATURDAY NIGHT WITH DRY BUT
COOL CONDITIONS MOST AREAS SUNDAY.

.LONG TERM (MON-THU)...MONDAY STILL LOOKS DRY AND COOL. THE TUE-THU
FORECAST STILL VERY MUCH IN DOUBT. 12Z GFS/EC BOTH TRENDING FARTHER
OFFSHORE WITH THE NEXT UPPER LOW, WHICH IF TRUE WOULD PRETTY MUCH
LEAVE OUR AREA DRY BUT CONTINUED COOL. GIVEN THE HIGH DEGREE OF
UNCERTAINTY FEEL IT'S WELL WORTH LEAVING IN AT LEAST A SLIGHT CHANCE
OF SHOWERS ACROSS THE AREA.

&&

.AVIATION...17/1800Z.
RATHER LOW CONFIDENCE IN THE 18Z TAFS. THE FORECAST MODELS ARE
HAVING EXTRAORDINARY PROBLEMS IN DETERMINING THE TIMING AND
INTENSITY OF THE UPCOMING STORM. THE MOST LIKELY SCENARIO IS FOR THE
FORECAST AREA TO RECEIVE A PERIOD OF STRONG SOUTH TO SOUTHEAST WINDS
BEGINNING NORTH OF POINT CONCEPTION THIS AFTERNOON AND SPREADING
VERY SLOWLY DOWN TO LOS ANGELES COUNTY BY MIDDAY FRIDAY. ABOUT 4 TO
6 HOURS AFTER THE ARRIVAL OF THE STRONG WINDS...A FRONTAL SYSTEM
WILL GET CLOSE ENOUGH TO BRING A PERIOD OF MODERATE TO HEAVY RAIN.
KLAX IS LIKELY TO EXPERIENCE EAST WINDS STRONGER THAN 10 KNOTS AFTER
ABOUT 15Z FRIDAY MORNING. VFR TO MVFR CONDITIONS WILL DETERIORATE TO
MVFR TO IFR CONDITIONS AS THE STORM SYSTEM APPROACHES ON FRIDAY.

KLAX...VFR TO MVFR CONDITIONS THROUGH MUCH OF TONIGHT. BY EARLY
FRIDAY MORNING...EAST WINDS WILL PICK UP AND INCREASE TO OVER 10 KT
BY AROUND 15Z. CONDITIONS WILL DETERIORATE TO MVFR TO IFR AS THE
RAIN AND LOWER CEILINGS ASSOCIATED WITH THE FRONT ARRIVE FRIDAY
AFTERNOON.

KBUR...VFR TO MVFR CONDITIONS THROUGH MUCH OF TONIGHT. CONDITIONS
WILL DETERIORATE TO MVFR TO IFR AS THE RAIN AND LOWER CEILINGS
ASSOCIATED WITH THE FRONT ARRIVE FRIDAY AFTERNOON.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WARNING (SEE LAXWSWLOX).
WIND ADVISORY (SEE LAXNPWLOX).
GALE WARNING (SEE LAXMWWLOX).
SMALL CRAFT ADVISORY (SEE LAXMWWLOX).
HIGH SURF ADVISORY (SEE LAXCFWLOX).
HIGH RIP CURRENT RISK (SEE LAXSRFLOX).
MARINE WEATHER STATEMENT (SEE LAXMWSLOX).
GALE WATCH (SEE LAXMWWLOX).
SPECIAL WEATHER STATEMENT (SEE LAXSPSLOX).

&&

PUBLIC...WOFFORD
AVIATION...SWEET
SYNOPSIS...SETO

WWW.WEATHER.GOV/LOSANGELES
Hazardous weather outlook, Feb 17, 2:19 PM PST, 23 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
219 PM PST THU FEB 17 2011

CAZ034>041-044>046-051>054-059-087-088-547-548-181400-
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-SANTA YNEZ VALLEY-
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY-
SANTA BARBARA COUNTY SOUTH COAST-VENTURA COUNTY COAST-
LOS ANGELES COUNTY COAST INCLUDING DOWNTOWN LOS ANGELES-
VENTURA COUNTY INTERIOR VALLEYS-VENTURA COUNTY COASTAL VALLEYS-
SANTA MONICA MOUNTAINS RECREATIONAL AREA-
SAN LUIS OBISPO COUNTY MOUNTAINS-
SANTA BARBARA COUNTY MOUNTAINS-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
ANTELOPE VALLEY-CATALINA ISLAND-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN FERNANDO VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
219 PM PST THU FEB 17 2011

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY

RAIN WILL DEVELOP ACROSS THE CENTRAL COAST THIS AFTERNOON AND
TONIGHT. WINDS WILL INCREASE TO ADVISORY LEVELS ACROSS THE CENTRAL
COAST. DANGEROUS SURF WILL PLAGUE THE BEACHES.

* WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

* GALE WARNING...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

* HIGH SURF ADVISORY.........SEE WHUS46 KLOX - CFWLOX FOR DETAILS *

* HIGH RIP CURRENT RISK......SEE FZUS56 KLOX - SRFLOX FOR DETAILS *

* SPECIAL WEATHER STATEMENT..SEE WWUS86 KLOX - SPSLOX FOR DETAILS *

.DAYS TWO THROUGH SEVEN... FRIDAY THROUGH WEDNESDAY

HIGH SURF AND STRONG RIP CURRENTS WILL CONTINUE ALONG THE BEACHES
OFTHE CENTRAL COAST AND WEST FACING BEACHES OF VENTURA COUNTY.A
STRONGER STORM SYSTEM IS EXPECTED TO AFFECT THE REGION THURSDAYNIGHT
THROUGH SATURDAY...BRINGING THE POTENTIAL FOR PERIODS OF
HEAVYRAIN...SIGNIFICANT MOUNTAIN SNOW...AND STRONG WINDS. IN
ADDITION...THERE WILL BE THE POTENTIAL FOR THUNDERSTORMS WHICH COULD
PRODUCE BRIEF HEAVY DOWNPOURS...HAIL...STRONG WINDS...AND DANGEROUS
LIGHTNING. IN ADDITION...THERE IS THE POTENTIAL FOR WATERSPOUTS AND
ISOLATED SMALL TORNADOS FRIDAY NIGHT INTO SATURDAY. SNOW LEVELS ARE
EXPECTED TO LOWER BY LATE FRIDAY NIGHT AND SATURDAY...WHICH WILL
POTENTIALLY CREATE WINTER WEATHER HAZARDS BOTH THE TEJON AND SOLEDAD
PASSES.

* WINTER STORM WARNING.......SEE WWUS46 KLOX - WSWLOX FOR DETAILS *

* WIND ADVISORY..............SEE WWUS76 KLOX - NPWLOX FOR DETAILS *

* GALE WARNING...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

* MARINE WEATHER STATEMENT...SEE FZUS76 KLOX - MWSLOX FOR DETAILS *

* GALE WATCH...............SEE WHUS76 KLOX - MWWLOX FOR DETAILS *

* SPECIAL WEATHER STATEMENT..SEE WWUS86 KLOX - SPSLOX FOR DETAILS *

.SPOTTER INFORMATION STATEMENT...

WEATHER SPOTTERS ARE ENCOURAGED TO REPORT SIGNIFICANT WEATHER
CONDITIONS ACCORDING TO STANDARD OPERATING PROCEDURES.

WOFFORD

The office that day

Everything else NWS Los Angeles, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 17, 3:43 AM PSTWinter Storm WatchLOX11 hr
Feb 17, 3:47 AM PSTHigh Wind WatchLOXSanta Barbara11 hr
Feb 17, 3:47 AM PSTWind AdvisoryLOXLos Angeles, Santa Barbara47 hr
Feb 17, 9:31 AM PSTGale WatchLOX8 hr
Feb 17, 9:31 AM PSTGale WarningLOX35 hr

Nearby

Winter Storm Warnings in California, 2011Every winter storm warning in 2011

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.