Alert archive / California / Winter Storm Warnings in 2012

Winter Storm Warning 3, NWS Los Angeles, CA

March 24, 2012

NWS Los Angeles, CA issued this winter storm warning at Mar 24, 2012, 3:07 AM PDT. It took effect at Mar 25, 2012, 3:00 AM PDT. It was in force for 24 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
Mar 24, 2012, 3:07 AM PDT (10:07 UTC)
In effect from
Mar 25, 2012, 3:00 AM PDT
Expired
Mar 26, 2012, 3:00 AM PDT
In force
24 hr
Issued by
NWS Los Angeles, CA

The text

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

872 
WWUS46 KLOX 241007
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
307 AM PDT SAT MAR 24 2012

...WINTER STORM EXPECTED TO IMPACT THE AREA LATE THIS WEEKEND...

.A COLD STORM SYSTEM WILL BRING A WINTRY WEATHER PATTERN TO THE
MOUNTAINS TONIGHT THROUGH SUNDAY NIGHT. HEAVY SNOW AND STRONG WINDS
WILL COMBINE TO MAKE CONDITIONS DANGEROUS...AND TREACHEROUS FOR
MOTORISTS. THE HIGHEST AMOUNT WILL LIKELY OCCUR ALONG SOUTHWEST
FACING SLOPES ABOVE 5500 FEET.

CAZ053-241815-
/O.UPG.KLOX.WS.A.0003.120325T1000Z-120326T1000Z/
/O.NEW.KLOX.WS.W.0003.120325T1000Z-120326T1000Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
307 AM PDT SAT MAR 24 2012

...WINTER STORM WARNING IN EFFECT FROM 3 AM SUNDAY TO 3 AM PDT
MONDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WINTER STORM WARNING FOR THE COMBINATION OF SNOW AND STRONG WINDS...WHICH
IS IN EFFECT FROM 3 AM SUNDAY TO 3 AM PDT MONDAY. THE WINTER STORM
WATCH IS NO LONGER IN EFFECT.

* TIMING...A WINTER STORM SYSTEM WILL BRING A COMBINATION OF HEAVY
  SNOW AND STRONG WINDS TO THE AREA LATE TONIGHT AND SUNDAY.
  SNOW...HEAVY AT TIMES WILL COMBINE WITH STRONG WINDS TO PRODUCE
  NEAR WHITEOUT CONDITIONS.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 8 AND 14 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  16 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS UP
  TO 45 MPH.

* SNOW LEVELS...SNOW LEVELS WILL START OFF BETWEEN 6500 AND 7500
  FEET THIS EVENING WILL THEN FALL TO BETWEEN 5000 AND 5500 FEET
  BY EARLY SUNDAY MORNING. THE SNOW LEVEL WILL LOWER LOCALLY TO
  4500 FEET BY SUNDAY NIGHT.

* IMPACTS...WINTER WEATHER CONDITIONS WILL BRING TREACHEROUS
  DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND POWER LINES
  LATE THIS WEEKEND. ROADWAYS IMPACTED BY SNOW WILL BE LOCKWOOD
  VALLEY RD...WITH SNOW ACCUMULATIONS ON HIGHWAY 33 ACROSS THE
  HIGHER ELEVATIONS BETWEEN MEINERS OAKS AND VENTUCOPA.

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.

&&

$$

CAZ054-241815-
/O.UPG.KLOX.WS.A.0003.120325T1800Z-120326T1800Z/
/O.NEW.KLOX.WS.W.0003.120325T1800Z-120326T1800Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
307 AM PDT SAT MAR 24 2012

...WINTER STORM WARNING IN EFFECT FROM 11 AM SUNDAY TO 11 AM PDT
MONDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WINTER STORM WARNING FOR THE COMBINATION OF SNOW AND STRONG WINDS...WHICH
IS IN EFFECT FROM 11 AM SUNDAY TO 11 AM PDT MONDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.

* TIMING...A WINTER STORM SYSTEM WILL BRING A COMBINATION OF HEAVY
  SNOW AND STRONG WINDS TO THE AREA SUNDAY AND MONDAY.
  SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG WINDS TO
  PRODUCE NEAR WHITEOUT CONDITIONS.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 10 AND 16 INCHES
  ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 20
  INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET.

* WINDS...SOUTH WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS UP
  TO 45 MPH LATE TONIGHT AND WILL PERSIST THROUGH SUNDAY NIGHT.

* SNOW LEVELS...SNOW LEVELS WILL START OFF BETWEEN 6500 AND 7500
  FEET THIS EVENING THEN FALL TO BETWEEN 5000 AND 5500 FEET
  BY EARLY SUNDAY MORNING. THE SNOW LEVEL MAY POSSIBLY LOWER
  LOCALLY TO 4500 FEET IN SOME LOCATIONS.

* IMPACTS...WINTER WEATHER CONDITIONS WILL IMPACT THE AREA WITH
  TREACHEROUS DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND
  POWER LINES LATE THIS WEEKEND. ROADWAYS IMPACTED BY SNOW WILL
  BE HIGHWAYS 2 AND 39...WITH SNOW ACCUMULATIONS POSSIBLE ON
  INTERSTATE 5 BETWEEN CASTAIC AND THE KERN COUNTY LINE.

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.

&&

$$

KAPLAN/ASR/WOFFORD
7 follow-up statements
669 
WWUS46 KLOX 241802
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1102 AM PDT SAT MAR 24 2012

...WINTER STORM EXPECTED TO IMPACT THE AREA LATE THIS WEEKEND...

.A COLD STORM SYSTEM WILL BRING A WINTRY WEATHER PATTERN TO THE
MOUNTAINS TONIGHT THROUGH SUNDAY NIGHT. HEAVY SNOW AND STRONG
WINDS WILL COMBINE TO MAKE CONDITIONS DANGEROUS...AND TREACHEROUS
FOR MOTORISTS. THE HIGHEST AMOUNT WILL LIKELY OCCUR ALONG
SOUTHWEST FACING SLOPES ABOVE 5500 FEET.

CAZ053-250215-
/O.CON.KLOX.WS.W.0003.120325T1000Z-120326T1000Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
1102 AM PDT SAT MAR 24 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM SUNDAY TO
3 AM PDT MONDAY...

* TIMING...A WINTER STORM SYSTEM WILL BRING A COMBINATION OF HEAVY
  SNOW AND BLOWING SNOW TO THE AREA LATE TONIGHT AND SUNDAY.
  SNOW...HEAVY AT TIMES WILL COMBINE WITH STRONG WINDS TO PRODUCE
  NEAR WHITEOUT CONDITIONS.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 8 AND 14 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  16 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS 
  UP TO 45 MPH. 

* SNOW LEVELS...SNOW LEVELS WILL START OFF BETWEEN 6500 AND 7500 
  FEET THIS EVENING WILL THEN FALL TO BETWEEN 5000 AND 5500 FEET 
  BY EARLY SUNDAY MORNING. THE SNOW LEVEL WILL LOWER LOCALLY TO 
  4500 FEET BY SUNDAY NIGHT. 

* IMPACTS...WINTER WEATHER CONDITIONS WILL BRING TREACHEROUS 
  DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND POWER LINES 
  LATE THIS WEEKEND. ROADWAYS IMPACTED BY SNOW WILL BE LOCKWOOD 
  VALLEY RD...WITH SNOW ACCUMULATIONS ON HIGHWAY 33 ACROSS THE 
  HIGHER ELEVATIONS BETWEEN MEINERS OAKS AND VENTUCOPA. 

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.

&&

$$

CAZ054-250215-
/O.CON.KLOX.WS.W.0003.120325T1800Z-120326T1800Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
1102 AM PDT SAT MAR 24 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 AM SUNDAY TO
11 AM PDT MONDAY...

* TIMING...A WINTER STORM SYSTEM WILL BRING A COMBINATION OF HEAVY
  SNOW AND BLOWING SNOW TO THE AREA SUNDAY AND MONDAY.
  SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG WINDS TO
  PRODUCE NEAR WHITEOUT CONDITIONS.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 10 AND 16 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  20 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS 
  UP TO 45 MPH LATE TONIGHT AND WILL PERSIST THROUGH SUNDAY 
  NIGHT. 

* SNOW LEVELS...SNOW LEVELS WILL START OFF BETWEEN 6500 AND 7500 
  FEET THIS EVENING THEN FALL TO BETWEEN 5000 AND 5500 FEET BY 
  EARLY SUNDAY MORNING. THE SNOW LEVEL MAY POSSIBLY LOWER 
  LOCALLY TO 4500 FEET IN SOME LOCATIONS. 

* IMPACTS...WINTER WEATHER CONDITIONS WILL IMPACT THE AREA WITH 
  TREACHEROUS DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND 
  POWER LINES LATE THIS WEEKEND. ROADWAYS IMPACTED BY SNOW WILL 
  BE HIGHWAYS 2 AND 39...WITH SNOW ACCUMULATIONS POSSIBLE ON 
  INTERSTATE 5 BETWEEN CASTAIC AND THE KERN COUNTY LINE. 

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.

&&

$$
502 
WWUS46 KLOX 250223
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
723 PM PDT SAT MAR 24 2012

...WINTER STORM EXPECTED TO IMPACT THE AREA OVERNIGHT INTO SUNDAY...

.A COLD STORM SYSTEM WILL BRING A WINTRY WEATHER PATTERN TO THE
MOUNTAINS TONIGHT THROUGH SUNDAY NIGHT. HEAVY SNOW AND STRONG
WINDS WILL COMBINE TO MAKE CONDITIONS DANGEROUS...AND TREACHEROUS
FOR MOTORISTS. THE HIGHEST AMOUNT WILL LIKELY OCCUR ALONG
SOUTHWEST FACING SLOPES ABOVE 5500 FEET.

CAZ053-251100-
/O.CON.KLOX.WS.W.0003.120325T1000Z-120326T1000Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
723 PM PDT SAT MAR 24 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 3 AM SUNDAY TO
3 AM PDT MONDAY...

* TIMING...A WINTER STORM SYSTEM WILL BRING A COMBINATION OF 
  HEAVY SNOW AND BLOWING SNOW TO THE AREA LATE TONIGHT AND 
  SUNDAY. SNOW...HEAVY AT TIMES WILL COMBINE WITH STRONG WINDS 
  TO PRODUCE NEAR WHITEOUT CONDITIONS. 

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 8 AND 14 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  16 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS 
  UP TO 45 MPH. 

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 5000 AND
  5500 FEET ON SUNDAY...THEN FALL TO AROUND 4000 FEET SUNDAY
  NIGHT. 

* IMPACTS...WINTER WEATHER CONDITIONS WILL BRING TREACHEROUS 
  DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND POWER LINES 
  LATE THIS WEEKEND. ROADWAYS IMPACTED BY SNOW WILL BE LOCKWOOD 
  VALLEY RD...WITH SNOW ACCUMULATIONS ON HIGHWAY 33 ACROSS THE 
  HIGHER ELEVATIONS BETWEEN MEINERS OAKS AND VENTUCOPA. 

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.

&&

$$

CAZ054-251100-
/O.CON.KLOX.WS.W.0003.120325T1800Z-120326T1800Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
723 PM PDT SAT MAR 24 2012

...WINTER STORM WARNING REMAINS IN EFFECT FROM 11 AM SUNDAY TO
11 AM PDT MONDAY...

* TIMING...A WINTER STORM SYSTEM WILL BRING A COMBINATION OF 
  HEAVY SNOW AND BLOWING SNOW TO THE AREA SUNDAY AND MONDAY. 
  SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG WINDS TO 
  PRODUCE NEAR WHITEOUT CONDITIONS. 

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 10 AND 16 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  20 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS UP
  TO 50 MPH LATE TONIGHT AND WILL PERSIST THROUGH SUNDAY NIGHT.

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 5000 AND
  5500 FEET ON SUNDAY...THEN LOWER TO AS LOW AS 4000 FEET BY
  SUNDAY NIGHT.

* IMPACTS...WINTER WEATHER CONDITIONS WILL IMPACT THE AREA WITH
  TREACHEROUS DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND
  POWER LINES LATE THIS WEEKEND. MAJOR ROADWAYS THAT WILL LIKELY
  BE IMPACTED BY HEAVY SNOW INCLUDE HIGHWAYS 2 AND 39. IN
  ADDITION... INTERSTATE 5 NEAR THE GRAPEVINE COULD HAVE LIGHTER
  SNOW ACCUMULATIONS BY SUNDAY EVENING. 

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.

&&

$$

GOMBERG
515 
WWUS46 KLOX 251056
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
356 AM PDT SUN MAR 25 2012

...WINTER STORM EXPECTED TO IMPACT THE AREA OVERNIGHT INTO
SUNDAY...

.A COLD STORM SYSTEM WILL BRING A WINTRY WEATHER PATTERN TO THE
MOUNTAINS TODAY AND TONIGHT. HEAVY SNOW AND STRONG WINDS
WILL COMBINE TO MAKE CONDITIONS DANGEROUS...AND TREACHEROUS FOR
MOTORISTS. THE HIGHEST AMOUNT WILL LIKELY OCCUR ALONG SOUTHWEST
FACING SLOPES ABOVE 5500 FEET.

CAZ054-251900-
/O.EXT.KLOX.WS.W.0003.120325T1800Z-120326T1000Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
356 AM PDT SUN MAR 25 2012

...WINTER STORM WARNING NOW IN EFFECT FROM 11 AM THIS MORNING TO
3 AM PDT MONDAY...

* TIMING...A WINTER STORM SYSTEM WILL BRING A COMBINATION OF 
  HEAVY SNOW AND BLOWING SNOW TO THE AREA TODAY AND TONIGHT. 
  SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG WINDS TO 
  PRODUCE NEAR WHITEOUT CONDITIONS. 

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 10 AND 16 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  20 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS UP
  TO 50 MPH LATE TONIGHT AND WILL PERSIST OVERNIGHT.

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 5000 AND
  5500 FEET TODAY...THEN LOWER TO AS LOW AS 4000 FEET TONIGHT.

* IMPACTS...WINTER WEATHER CONDITIONS WILL IMPACT THE AREA WITH
  TREACHEROUS DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND
  POWER LINES LATE THIS WEEKEND. MAJOR ROADWAYS THAT WILL LIKELY
  BE IMPACTED BY HEAVY SNOW INCLUDE HIGHWAYS 2 AND 39. IN
  ADDITION...INTERSTATE 5 NEAR THE GRAPEVINE COULD HAVE LIGHTER
  SNOW ACCUMULATIONS BY SUNDAY EVENING.

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.

&&

$$

CAZ053-251900-
/O.CON.KLOX.WS.W.0003.000000T0000Z-120326T1000Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
356 AM PDT SUN MAR 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT MONDAY...

* TIMING...A WINTER STORM SYSTEM WILL BRING A COMBINATION OF 
  HEAVY SNOW AND BLOWING SNOW TO THE AREA TODAY AND TONIGHT. 
  SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG WINDS TO 
  PRODUCE NEAR WHITEOUT CONDITIONS.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 8 AND 14 INCHES
  ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 16 INCHES
  IN FAVORABLE LOCATIONS ABOVE 7000 FEET.

* WINDS...SOUTH WINDS WILL INCREASE TO 20 TO 30 MPH WITH GUSTS UP
  TO 45 MPH.

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 5000 AND
  5500 FEET TODAY...THEN FALL TO AROUND 4000 FEET TONIGHT.

* IMPACTS...WINTER WEATHER CONDITIONS WILL BRING TREACHEROUS 
  DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND POWER LINES 
  LATE THIS WEEKEND. ROADWAYS IMPACTED BY SNOW WILL BE LOCKWOOD 
  VALLEY RD...WITH SNOW ACCUMULATIONS ON HIGHWAY 33 ACROSS THE 
  HIGHER ELEVATIONS BETWEEN MEINERS OAKS AND VENTUCOPA. 

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
087 
WWUS46 KLOX 251857
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1157 AM PDT SUN MAR 25 2012

...WINTER STORM IMPACTING THE AREA...

.A COLD SPRING STORM SYSTEM IS BEGINNING TO BRING WINTER-LIKE
WEATHER CONDITIONS TO THE MOUNTAINS WITH SNOW NOW FALLING ABOVE
5000 FEET ACROSS VENTURA COUNTY. HEAVY SNOW AND GUSTY WINDS WILL
COMBINE TO MAKE CONDITIONS DANGEROUS...AND TREACHEROUS FOR
MOTORISTS. THESE CONDITIONS WILL SPREAD EAST AND CONTINUE THROUGH
TONIGHT. THE HIGHEST SNOW AMOUNTS WILL LIKELY OCCUR ALONG
SOUTHWEST FACING SLOPES ABOVE 5500 FEET.

CAZ053-260300-
/O.CON.KLOX.WS.W.0003.000000T0000Z-120326T1000Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
1157 AM PDT SUN MAR 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT MONDAY...

* TIMING...A COLD SPRING STORM SYSTEM WILL BRING A COMBINATION OF
  HEAVY SNOW AND BLOWING SNOW TO THE AREA THROUGH TONIGHT.
  SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG WINDS TO
  PRODUCE NEAR WHITEOUT CONDITIONS.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 8 AND 14 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  16 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS 15 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 5000 AND
  5500 FEET THIS AFTERNOON...THEN FALL TO AROUND 4000 FEET
  TONIGHT.

* IMPACTS...WINTER WEATHER CONDITIONS WILL BRING TREACHEROUS
  DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND POWER LINES.
  ROADWAYS IMPACTED BY SNOW WILL BE LOCKWOOD VALLEY RD...WITH
  SNOW ACCUMULATIONS ON HIGHWAY 33 ACROSS THE HIGHER ELEVATIONS
  BETWEEN MEINERS OAKS AND VENTUCOPA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR ARE 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.

&&

$$

CAZ054-260300-
/O.CON.KLOX.WS.W.0003.000000T0000Z-120326T1000Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
1157 AM PDT SUN MAR 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT MONDAY...

* TIMING...A COLD SPRING STORM SYSTEM WILL BRING A COMBINATION OF
  HEAVY SNOW AND BLOWING SNOW TO THE AREA THIS AFTERNOON AND
  TONIGHT. SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG
  WINDS TO PRODUCE NEAR WHITEOUT CONDITIONS.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 10 AND 16 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  20 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS UP
  TO 50 MPH AND WILL PERSIST OVERNIGHT.

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 5000 AND
  5500 FEET THIS AFTERNOON...THEN LOWER TO AS LOW AS 4000 FEET
  TONIGHT.

* IMPACTS...WINTER WEATHER CONDITIONS WILL IMPACT THE AREA WITH
  TREACHEROUS DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND
  POWER LINES. MAJOR ROADWAYS THAT WILL LIKELY BE IMPACTED BY
  HEAVY SNOW INCLUDE HIGHWAYS 2 AND 39. IN ADDITION...INTERSTATE 5
  NEAR THE GRAPEVINE COULD HAVE LIGHTER SNOW ACCUMULATIONS BY LATE
  TONIGHT.

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.

&&

$$

TRM
724 
WWUS46 KLOX 252322
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
422 PM PDT SUN MAR 25 2012

...WINTER STORM IMPACTING THE AREA...

.A COLD SPRING STORM SYSTEM IS BRINGING WINTER-LIKE WEATHER
CONDITIONS TO THE MOUNTAINS WITH SNOW NOW FALLING ACROSS VENTURA
AND LOS ANGELES COUNTIES ABOVE 4500 FEET AND OCCASIONALLY DOWN TO
4000 FEET. HEAVY SNOW AND GUSTY WINDS WILL COMBINE TO MAKE
CONDITIONS DANGEROUS...AND TREACHEROUS FOR MOTORISTS. THESE
CONDITIONS WILL SPREAD EAST AND CONTINUE THROUGH TONIGHT. THE
HIGHEST SNOW AMOUNTS WILL LIKELY OCCUR ALONG SOUTH FACING SLOPES
ABOVE 5500 FEET.

CAZ053-260730-
/O.CON.KLOX.WS.W.0003.000000T0000Z-120326T1000Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
422 PM PDT SUN MAR 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT MONDAY...

* TIMING...A COLD SPRING STORM SYSTEM WILL BRING A COMBINATION 
  OF HEAVY SNOW AND BLOWING SNOW TO THE AREA THROUGH TONIGHT. 
  SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG WINDS TO 
  PRODUCE NEAR WHITEOUT CONDITIONS. 

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 8 AND 14 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  16 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS 15 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 4000 AND
  5000 FEET.

* IMPACTS...WINTER WEATHER CONDITIONS WILL BRING TREACHEROUS
  DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND POWER LINES.
  ROADWAYS MOST IMPACTED BY SNOW WILL BE LOCKWOOD VALLEY RD...
  WITH SNOW ACCUMULATIONS ON HIGHWAY 33 ACROSS THE HIGHER
  ELEVATIONS BETWEEN MEINERS OAKS AND VENTUCOPA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR ARE 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.

&&

$$

CAZ054-260730-
/O.CON.KLOX.WS.W.0003.000000T0000Z-120326T1000Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
422 PM PDT SUN MAR 25 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT MONDAY...

* TIMING...A COLD SPRING STORM SYSTEM WILL BRING A COMBINATION OF
  HEAVY SNOW AND BLOWING SNOW TO THE AREA THROUGH TONIGHT.
  SNOW...HEAVY AT TIMES WILL COMBINE WITH THE STRONG WINDS TO
  PRODUCE NEAR WHITEOUT CONDITIONS.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 10 AND 16 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  20 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS 
  UP TO 50 MPH AND WILL PERSIST OVERNIGHT. 

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 4000 AND
  5000 FEET.

* IMPACTS...WINTER WEATHER CONDITIONS WILL IMPACT THE AREA WITH
  TREACHEROUS DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND
  POWER LINES. MAJOR ROADWAYS THAT WILL BE IMPACTED BY HEAVY SNOW
  INCLUDE HIGHWAYS 2 AND 39. IN ADDITION...INTERSTATE 5 NEAR THE
  GRAPEVINE COULD HAVE LIGHTER SNOW ACCUMULATIONS.

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.

&&

$$

TRM
503 
WWUS46 KLOX 260722
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
1222 AM PDT MON MAR 26 2012

CAZ053-261000-
/O.CON.KLOX.WS.W.0003.000000T0000Z-120326T1000Z/
VENTURA COUNTY MOUNTAINS-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS
1222 AM PDT MON MAR 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT EARLY
THIS MORNING...

* TIMING...A COLD SPRING STORM SYSTEM WILL BRING A COMBINATION OF
  HEAVY SNOW AND BLOWING SNOW TO THE AREA THROUGH EARLY THIS
  MORNING.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 8 AND 14 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  16 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS 15 TO 30 MPH WITH GUSTS UP TO 40 MPH.

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 4000 
  AND 5000 FEET. 

* IMPACTS...WINTER WEATHER CONDITIONS WILL BRING TREACHEROUS 
  DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND POWER 
  LINES. ROADWAYS MOST IMPACTED BY SNOW WILL BE LOCKWOOD VALLEY 
  RD... WITH SNOW ACCUMULATIONS ON HIGHWAY 33 ACROSS THE HIGHER 
  ELEVATIONS BETWEEN MEINERS OAKS AND VENTUCOPA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WARNING FOR HEAVY SNOW MEANS SEVERE WINTER WEATHER
CONDITIONS ARE EXPECTED OR ARE 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.

&&

$$

CAZ054-261000-
/O.CON.KLOX.WS.W.0003.000000T0000Z-120326T1000Z/
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...ACTON...MOUNT WILSON...SANDBERG
1222 AM PDT MON MAR 26 2012

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PDT EARLY
THIS MORNING...

* TIMING...A COLD SPRING STORM SYSTEM WILL BRING A COMBINATION OF
  HEAVY SNOW AND BLOWING SNOW TO THE AREA THROUGH EARLY THIS
  MORNING.

* SNOW ACCUMULATIONS...SNOW ACCUMULATIONS BETWEEN 10 AND 16 
  INCHES ARE LIKELY ABOVE 5500 FEET...WITH LOCAL AMOUNTS UP TO 
  20 INCHES IN FAVORABLE LOCATIONS ABOVE 7000 FEET. 

* WINDS...SOUTH WINDS WILL INCREASE TO 25 TO 35 MPH WITH GUSTS 
  UP TO 50 MPH AND WILL PERSIST OVERNIGHT. 

* SNOW LEVELS...SNOW LEVELS WILL GENERALLY RANGE BETWEEN 4000 
  AND 5000 FEET. 

* IMPACTS...WINTER WEATHER CONDITIONS WILL IMPACT THE AREA WITH 
  TREACHEROUS DRIVING CONDITIONS...AND POSSIBLE DOWNED TREES AND 
  POWER LINES. MAJOR ROADWAYS THAT WILL BE IMPACTED BY HEAVY 
  SNOW INCLUDE HIGHWAYS 2 AND 39. IN ADDITION...INTERSTATE 5 
  NEAR THE GRAPEVINE COULD HAVE LIGHTER SNOW ACCUMULATIONS. 

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
413 
WWUS46 KLOX 261018
WSWLOX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
318 AM PDT MON MAR 26 2012

CAZ053-054-261130-
/O.EXP.KLOX.WS.W.0003.000000T0000Z-120326T1000Z/
VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON...
MOUNT WILSON...SANDBERG
318 AM PDT MON MAR 26 2012

...WINTER STORM WARNING HAS EXPIRED...

SUNDAYS STORM HAS EXITED THE AREA AND ONLY A FEW LIGHT SNOW
SHOWERS REMAIN OVER THE MOUNTAINS. THERE WILL BE A FEW LOCAL
ACCUMULATIONS UP TO 2 INCHES THROUGH THE MORNING.

$$


ASR

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 Mar 23, 8:30 PM PDT, 6 hours 37 minutes earlier.

Area forecast discussion, Mar 23, 8:30 PM PDT, 6 hours 37 minutes before
SOUTHWEST CALIFORNIA AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
830 PM PDT FRI MAR 23 2012

.SYNOPSIS...

A STORM WILL MOVE SOUTH OVER THE REGION LATE SATURDAY AND SUNDAY
BRINGING PERIODS OF RAIN AND MOUNTAIN SNOW. THE LOW WILL MOVE EAST
ON MONDAY FOR FAIR WEATHER. ANOTHER LOW WILL APPROACH BY MIDWEEK FOR
POSSIBLE LIGHT RAIN IN SAN LUIS OBISPO AND SANTA BARBARA COUNTIES.
THE TEMPERATURES WILL BE BACK TO SEASONAL NORMALS ON THURSDAY.

&&

.SHORT TERM (TONIGHT-MON)...
INFLUX OF HIGHER LEVEL CLOUDS ACROSS THE REGION THIS EVENING HAS
DISRUPTED THE REFORMATION OF LOW CLOUDS. STILL THINKING THAT
LOW CLOUDS WILL REDEVELOP TONIGHT BUT WILL NOT BE AS EXTENSIVE
AS LAST NIGHT DUE TO LACK OF AN EDDY CIRCULATION. BASED ON
TIME-HEIGHT CROSS SECTION...LOW CLOUDS ARE GENERALLY EXPECTED TO BE
CONFINED TO LA COUNTY COASTAL AND VALLEY AREAS. WITH SOUTHERLY FLOW
AHEAD OF NEXT STORM SYSTEM AND MORE SUNSHINE PROJECTED...LOOK FOR
SOME WARMING IN MOST AREAS ON SATURDAY.

LATEST 00Z NAM MODEL STILL IN GENERAL SYNOPTIC AGREEMENT WITH
EARLIER MODEL SOLUTIONS. BY SATURDAY EVENING...A RATHER IMPRESSIVE
535 DM UPPER LEVEL LOW WILL BE CENTERED ABOUT 500 MILES WEST OF
MONTEREY WITH BROAD SOUTHWEST FLOW ALOFT ACROSS SOUTHERN CALIFORNIA.
ON SUNDAY...THIS UPPER LOW IS EXPECTED TO DIVE SOUTHEASTWARD INTO THE
COASTAL WATERS OFF SOUTHERN CALIFORNIA...WITH THE COLD CORE
COMING ASHORE NEAR THE LA BASIN ON SUNDAY EVENING. WHILE THERE
IS STILL SOME MODEL DIFFERENCES IN TIMING AND INTENSITY...MOST OF
THE REGION CAN EXPECT A GOOD LATE SEASON SOAKING.

RAINFALL IS EXPECTED TO BECOME WIDESPREAD ACROSS THE CENTRAL COAST
ON SATURDAY NIGHT...SPREADING INTO THE LOS ANGELES BASIN ON SUNDAY.
WIDESPREAD RAINFALL AMOUNTS BETWEEN .75 AND 1.50 INCHES STILL SEEMS
ON TRACK FOR MOST COASTAL AND VALLEY AREAS. WITH THE GOOD SOUTHERLY
LOW LEVEL FLOW BEING PROJECTED WITH THIS SYSTEM...LOOK FOR GOOD
OROGRAPHIC EHANCEMENT ACROSS SOUTH FACING FOOTHILLS AND MOUNTAINS.
THESE LOCATIONS COULD SEE SOME STORM TOTALS IN THE 2 TO 4 INCH
RANGE. AT THIS TIME...APPEARS THAT SOUTH FACING FOOTHILLS AND
MOUNTAINS OF VENTURA AND LOS ANGELES COUNTIES WILL SEE THE HIGHEST
TOTALS DUE TO THE LONGEST DURATION OF SOUTHERLY FLOW AND BEST UPPER
LEVEL DYNAMICS. IN FACT...00Z NAM CONTINUES TO ADVERTISE STRONGEST
UPPER LEVEL DIVERGENCE AND INSTABILITY OCCURRING LATE SUNDAY
AFTERNOON INTO EARLY SUNDAY EVENING...WHICH WILL LIKELY BE THE FOCUS
FOR HIGHEST RAINFALL INTENSITIES AND POSSIBLE CONVECTION FOR THE LOS
ANGELES BASIN. IN TERMS OF CONVECTIVE PARAMETERS...00Z NAM INDICATES
LIFTED INDEX VALUES BETWEEN 0 AND -2 AND CAPE VALUES EXCEEDING 400
RIGHT OFF THE LA COUNTY COAST DURING THIS TIME. THIS DUE TO THE
PROJECTED COLD UPPER LEVEL LOW (500 MB TEMPERATURES AS LOW AS -26
DEGREES CELSIUS) MOVING OVER THE REGION AND DESTABILIZING THE
ATMOSPHERE. THESE TYPE OF PARAMETERS SUPPORT THE SLIGHT CHANCE OF
THUNDERSTORMS...WITH THE GREATEST THREATS BEING SMALL HAIL AND BRIEF
HEAVY DOWNPOURS. THESE CONVECTIVE PARAMETERES COMBINED WITH SOME LOW
LEVEL WIND SHEAR ALSO MAKE CONDITIONS FAVORABLE FOR POSSIBLE
WATERSPOUTS ACROSS THE COASTAL WATERS OF LA AND ORANGE COUNTIES.

WINTER STORM WATCH IN EFFECT FOR MOUNTAINS OF LOS ANGELES AND VENTURA
COUNTIES. SNOW LEVELS WILL BE TRICKY WITH OPPOSING FORCES. THIS SYSTEM
HAS FAIRLY COLD AIR ALOFT BUT THE LOW LEVELS WILL HAVE SOUTHERLY
FLOW THAT TENDS TO MODIFY SNOW LEVELS. CURRENT THINKING IS THAT SNOW
LEVELS WILL GENERALLY RANGE BETWEEN 5000 AND 5500 FEET ON SUNDAY...LOWERING
TO 4500 FEET ON SUNDAY NIGHT. HOWEVER...MOST OF THE ACCUMULATIONS
ARE EXPECTED TO OCCUR ABOVE 5500 FEET...IN THE 8 TO 16 INCH RANGE.
LOCAL AMOUNTS TO 20 INCHES WILL BE POSSIBLE ABOVE 7000 FEET. IN
ADDITION TO SNOW...THERE WILL LIKELY BE SOUTHERLY WINDS GUSTING TO
50 MPH IN THE MOUNTAINS.

*** FROM PREVIOUS DISCUSSION ***

PRECIP EXPECTED TO START TAPERING OFF LATE SUNDAY WITH JUST SOME
LINGERING SHOWERS MONDAY, MAINLY OVER THE MTNS AND ERN/SRN LA COUNTY.

.LONG TERM (TUE-FRI)...DRY AND A LITTLE WARMER MOST AREAS TUESDAY.
BY LATE TUESDAY INTO WEDNESDAY MOISTURE FROM THE TAIL END OF A
SYSTEM MOVING INTO NORTHERN CALIFORNIA WILL BRUSH THE CENTRAL COAST
AND LEFT IN THE SLIGHT CHANCE POPS WE HAD GOING FOR THOSE AREAS. THE
FRONT WASHES OUT AS IT MOVES SOUTH SO NO PRECIP EXPECTED SOUTH OF PT
CONCEPTION BUT POSSIBLY SOME INCREASE IN CLOUDS WED. THEN A LITTLE
RIDGE STARTS TO BUILD OVER THE AREA THU/FRI FOR DRY WEATHER AND A
WARMING TREND.

&&

.AVIATION...23/2345Z.
MARINE LAYER CLOUDS HAVE GENERALLY MIXED OUT IN MOST AREAS LATE
THIS AFTERNOON. RESIDUAL MOISTURE STILL IN PLACE ACROSS LOS ANGELES
BASIN...EXPECTING LOW CLOUDS TO REDEVELOP ACROSS COASTAL AND VALLEY
PORTIONS. HOWEVER...CONFIDENCE IS LOW FOR TIMING WHEN CEILINGS WILL
REDEVELOP. INCREASING SOUTH TO SOUTHEAST WINDS EXPECTED FOR AREAS
NORTH OF POINT CONCEPTION ON SATURDAY IN ADVANCE OF NEXT WEATHER
SYSTEM.

KLAX...FAIRLY HIGH CONFIDENCE FOR CEILING TO REDEVELOP AT SOME POINT
TONIGHT...BUT CONFIDENCE IS LOW FOR TIMING. EXPECTING CEILINGS TO
GENERALLY SETTLE IN THE 1000-2000 FOOT RANGE.

KBUR...FAIRLY HIGH CONFIDENCE FOR CEILING TO REDEVELOP AT SOME POINT
TONIGHT...BUT CONFIDENCE IS LOW FOR TIMING. EXPECTING CEILINGS TO
GENERALLY SETTLE IN THE 1000-1500 FOOT RANGE.

&&

.LOX WATCHES/WARNINGS/ADVISORIES...
WINTER STORM WATCH (SEE LAXWSWLOX).
SMALL CRAFT ADVISORY (SEE LAXMWWLOX).
SPECIAL WEATHER STATEMENT (SEE LAXSPSLOX).

&&

PUBLIC...GOMBERG/WOFFORD
AVIATION...GOMBERG
SYNOPSIS...SETO

WWW.WEATHER.GOV/LOSANGELES
Hazardous weather outlook, Mar 23, 2:12 PM PDT, 12 hours 55 minutes before
HAZARDOUS WEATHER OUTLOOK...UPDATED
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
212 PM PDT FRI MAR 23 2012

CAZ034>041-044>046-051>054-059-087-088-547-548-241300-
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-
212 PM PDT FRI MAR 23 2012

THIS HAZARDOUS WEATHER OUTLOOK IS FOR SOUTHWESTERN CALIFORNIA.

.DAY ONE... TODAY AND TONIGHT

NO HAZARDOUS WEATHER IS EXPECTED.

.DAYS TWO THROUGH SEVEN... SATURDAY THROUGH THURSDAY

A STORM SYSTEM WILL LIKELY BRING RAIN AND MOUNTAIN SNOW TO THE
REGION OVER THE WEEKEND. IT APPEARS THAT THE BULK OF THE STORM WILL
OCCUR LATE SATURDAY NIGHT INTO SUNDAY NIGHT. PRECIPITATION MAY BE
HEAVY AT TIMES. THERE WILL BE A CHANCE OF THUNDERSTORMS SUNDAY INTO
SUNDAY NIGHT. THERE WILL BE GUSTY SOUTH WINDS SATURDAY AFTERNOON
THROUGH SUNDAY MORNING ACROSS SAN LUIS OBISPO AND SANTA BARBARA
COUNTIES...AND IN THE MOUNTAINS. SIGNIFICANT SNOW COULD FALL AT
LEVELS LOW ENOUGH TO AFFECT TRAVEL ON INTERSTATE 5 OVER THE
GRAPEVINE LATE SUNDAY AND SUNDAY NIGHT.

* WINTER STORM WATCH.........SEE WWUS46 KLOX - WSWLOX 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
Mar 24, 2:21 PM PDTWind AdvisoryLOXSanta Barbara19 hr

Nearby

Winter Storm Warnings in California, 2012Every winter storm warning in 2012

Sources

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