Alert archive / California / Frost Advisories in 2015

Frost Advisory 21, NWS Los Angeles, CA

December 15, 2015Los Angeles County, California

NWS Los Angeles, CA issued this frost advisory at Dec 15, 2015, 1:55 PM PST for Los Angeles County, California. It took effect at Dec 16, 2015, 2:00 AM PST. It was in force for 7 hr.

The area

The counties it named.

The facts

Issued
Dec 15, 2015, 1:55 PM PST (21:55 UTC)
In effect from
Dec 16, 2015, 2:00 AM PST
Expired
Dec 16, 2015, 9:00 AM PST
In force
7 hr
Issued by
NWS Los Angeles, CA

County Los Angeles County, CA

The radar

The Santa Ana Mts radar (KSOX), 71 km from the middle of the area, began a volume at 21:52 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

San Diego, CA (KNKX), launched 12:00Z, 9.9 hours before the alert went out and 184 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, San Diego, CA at 12:00Z on 2015-12-15Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 12:00Z on 2015-12-15The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -19 square meters per square second.1939587897Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1622 m above ground
0-6 km bulk shear
71 kt
0-1 km storm-relative helicity
-19 m²/s²
0-3 km storm-relative helicity
92 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

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

651 
WWUS76 KLOX 152155
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
155 PM PST TUE DEC 15 2015

...VERY COLD TEMPERATURES POSSIBLE TONIGHT INTO WEDNESDAY...

.A DRY AND COLD AIR MASS WILL ALLOW FOR ANOTHER COLD NIGHT
TONIGHT INTO WEDNESDAY...WITH SEVERAL AREAS LIKELY SEEING COLDER
CONDITIONS THAN LAST NIGHT AND TEMPERATURES AROUND OR BELOW
FREEZING. TEMPERATURES SHOULD INCREASE A FEW DEGREES WEDNESDAY
NIGHT INTO THURSDAY...BUT SUB-FREEZING TEMPERATURES ARE POSSIBLE
AGAIN IN THE OJAI VALLEY.

CAZ036-152300-
/O.CAN.KLOX.HZ.A.0006.151216T1000Z-151216T1700Z/
SANTA YNEZ VALLEY-
INCLUDING THE CITIES OF...SOLVANG...SANTA YNEZ
155 PM PST TUE DEC 15 2015

...HARD FREEZE WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS CANCELLED
THE HARD FREEZE WATCH. 

A FEW HOURS OF SUB-FREEZING TEMPERATURES ARE EXPECTED TONIGHT INTO
WEDNESDAY WHICH WILL CREATE HAZARDS TO VEGETATION AND ANIMALS...BUT
TEMPERATURES BELOW 28 DEGREES WILL BE VERY LOCALIZED AND A HARD
FREEZE WARNING IS NOT EXPECTED. A FROST ADVISORY AND FREEZE
WARNING WILL ALSO NOT BE ISSUED SINCE THIS AREA HAS ALREADY
EXPERIENCED SIMILAR CONDITIONS TWO OR MORE TIMES THIS SEASON.

$$

CAZ044-161230-
/O.UPG.KLOX.HZ.A.0006.151216T1000Z-151216T1700Z/
/O.NEW.KLOX.HZ.W.0012.151216T1000Z-151216T1700Z/
/O.NEW.KLOX.FZ.A.0009.151217T1100Z-151217T1700Z/
VENTURA COUNTY INTERIOR VALLEYS-
INCLUDING THE CITIES OF...SANTA PAULA...FILLMORE...OJAI...PIRU
155 PM PST TUE DEC 15 2015

...HARD FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...
...FREEZE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY MORNING...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HARD FREEZE WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY. A FREEZE WATCH HAS ALSO BEEN ISSUED. THIS FREEZE WATCH
IS IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH THURSDAY MORNING.
THE PREVIOUS HARD FREEZE WATCH IS NO LONGER IN EFFECT. 

* TEMPERATURE...AROUND THE OJAI VALLEY...SEVERAL HOURS OF
  TEMPERATURES AT OR BELOW 28 DEGREES ARE EXPECTED TONIGHT INTO
  EARLY WEDNESDAY MORNING. OTHER WIND SHELTERED AREAS...SEVERAL
  HOURS BETWEEN 29 AND 32 DEGREES IS POSSIBLE TONIGHT INTO EARLY
  WEDNESDAY MORNING. SLIGHTLY WARMER BUT SIMILAR CONDITIONS ARE
  EXPECTED WEDNESDAY NIGHT INTO THURSDAY.

* IMPACTS...THE OJAI VALLEY CAN EXPERIENCE A HARD FREEZE WITH
  DAMAGE TO EXPOSED PIPES. ALL WIND SHELTERED VALLEYS CAN
  EXPERIENCE DAMAGE TO CROPS AND SENSITIVE VEGETATION. OUTDOOR
  PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES OF 28 DEGREES OR LESS
FOR TWO OR MORE CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE
MEASURES TO SAVE CROPS AND SENSITIVE VEGETATION SHOULD BE
TAKEN.VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A
HOUSE OR BARN. EXPOSED PIPES SHOULD BE WRAPPED TO KEEP THEM FROM
BURSTING.

A FREEZE WATCH MEANS TEMPERATURES BETWEEN 29 AND 32 DEGREES OR
LESS WILL BE POSSIBLE FOR AT LEAST TWO CONSECUTIVE HOURS.
PROTECTIVE MEASURES TO SAVE OUTDOOR PLANTS MAY BE NEEDED.
VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A HOUSE OR
BARN.

&&

$$

CAZ037-038-161230-
/O.UPG.KLOX.HZ.A.0006.151216T1000Z-151216T1700Z/
/O.NEW.KLOX.HZ.W.0012.151216T1000Z-151216T1700Z/
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY-
INCLUDING THE CITIES OF...PASO ROBLES...ATASCADERO...CUYAMA
155 PM PST TUE DEC 15 2015

...HARD FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HARD FREEZE WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY. THE PREVIOUS HARD FREEZE WATCH IS NO LONGER IN EFFECT.

* TEMPERATURE...SEVERAL HOURS OF TEMPERATURES AT OR BELOW 28
  DEGREES ARE EXPECTED TONIGHT INTO EARLY WEDNESDAY MORNING.

* IMPACTS...TEMPERATURES THIS COLD CAN RESULT IN A HARD FREEZE
  WITH DAMAGE TO EXPOSED PIPES. DAMAGE TO CROPS AND SENSITIVE
  VEGETATION IS LIKELY. OUTDOOR PETS AND LIVESTOCK ARE AT RISK
  FOR HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES OF 28 DEGREES OR LESS
FOR TWO OR MORE CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE
MEASURES TO SAVE CROPS AND SENSITIVE VEGETATION SHOULD BE
TAKEN.VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A
HOUSE OR BARN. EXPOSED PIPES SHOULD BE WRAPPED TO KEEP THEM FROM
BURSTING.

&&

$$

CAZ034-035-161230-
/O.NEW.KLOX.FZ.W.0023.151216T1000Z-151216T1700Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
INCLUDING THE CITIES OF...SAN LUIS OBISPO...PISMO BEACH...
MORRO BAY...CAMBRIA...SAN SIMEON...SANTA MARIA...LOMPOC...
VANDENBERG
155 PM PST TUE DEC 15 2015

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
FREEZE WARNING...WHICH IS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY. 

* TEMPERATURE...SEVERAL HOURS OF TEMPERATURES AT OR BELOW 32DEGREES
  ARE EXPECTED TONIGHT INTO EARLY WEDNESDAY MORNING.

* IMPACTS...DAMAGE TO CROPS AND SENSITIVE VEGETATION IS LIKELY.
  OUTDOOR PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS TEMPERATURES 29 AND 32 FOR TWO OR MORE
CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE MEASURES TO SAVE CROPS
AND SENSITIVE VEGETATION SHOULD BE TAKEN. VULNERABLE ANIMALS AND
PETS SHOULD BE KEPT INDOORS IN A HOUSE OR BARN.

&&

$$

CAZ039-088-548-161230-
/O.NEW.KLOX.FR.Y.0021.151216T1000Z-151216T1700Z/
SANTA BARBARA COUNTY SOUTH COAST-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
INCLUDING THE CITIES OF...SANTA BARBARA...MONTECITO...
CARPINTERIA...SANTA CLARITA...NEWHALL...VALENCIA...PASADENA...
SAN GABRIEL...POMONA
155 PM PST TUE DEC 15 2015

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
FROST ADVISORY...WHICH IS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY. 

* TEMPERATURE...SEVERAL HOURS OF TEMPERATURES AT OR BELOW 32DEGREES
  ARE EXPECTED TONIGHT INTO EARLY WEDNESDAY MORNING.

* IMPACTS...DAMAGE TO SENSITIVE VEGETATION IS POSSIBLE. OUTDOOR
  PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS IMMINENT. MEASURES SHOULD BE
TAKEN TO PROTECT SENSITIVE OUTDOOR PLANTS. PETS SHOULD BE BROUGHT
INDOORS.

&&

$$

KITTELL
3 follow-up statements
594 
WWUS76 KLOX 160457
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
857 PM PST TUE DEC 15 2015

...VERY COLD TEMPERATURES POSSIBLE TONIGHT INTO WEDNESDAY...

.A DRY AND COLD AIR MASS WILL ALLOW FOR ANOTHER COLD NIGHT
TONIGHT INTO WEDNESDAY...WITH SEVERAL AREAS LIKELY SEEING COLDER
CONDITIONS THAN LAST NIGHT AND TEMPERATURES AROUND OR BELOW
FREEZING. TEMPERATURES SHOULD INCREASE A FEW DEGREES WEDNESDAY
NIGHT INTO THURSDAY...BUT SUB-FREEZING TEMPERATURES ARE POSSIBLE
AGAIN IN THE OJAI VALLEY.

CAZ036-161000-
/O.EXA.KLOX.HZ.W.0012.151216T1000Z-151216T1700Z/
SANTA YNEZ VALLEY-
INCLUDING THE CITIES OF...SOLVANG...SANTA YNEZ
857 PM PST TUE DEC 15 2015

...HARD FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
HARD FREEZE WARNING FOR THE SANTA YNEZ VALLEY. THIS WARNING IS IN
EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY.

* TEMPERATURE...SEVERAL HOURS OF TEMPERATURES AT OR BELOW 28 
  DEGREES ARE EXPECTED TONIGHT INTO EARLY WEDNESDAY MORNING. 

* IMPACTS...TEMPERATURES THIS COLD CAN RESULT IN A HARD FREEZE 
  WITH DAMAGE TO EXPOSED PIPES. DAMAGE TO CROPS AND SENSITIVE 
  VEGETATION IS LIKELY. OUTDOOR PETS AND LIVESTOCK ARE AT RISK 
  FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES OF 28 DEGREES OR LESS
FOR TWO OR MORE CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE
MEASURES TO SAVE CROPS AND SENSITIVE VEGETATION SHOULD BE
TAKEN.VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A
HOUSE OR BARN. EXPOSED PIPES SHOULD BE WRAPPED TO KEEP THEM FROM
BURSTING.

&&

$$

CAZ044-161000-
/O.CON.KLOX.HZ.W.0012.151216T1000Z-151216T1700Z/
/O.CON.KLOX.FZ.A.0009.151217T1100Z-151217T1700Z/
VENTURA COUNTY INTERIOR VALLEYS-
INCLUDING THE CITIES OF...SANTA PAULA...FILLMORE...OJAI...PIRU
857 PM PST TUE DEC 15 2015

...HARD FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* TEMPERATURE...AROUND THE OJAI VALLEY...SEVERAL HOURS OF 
  TEMPERATURES AT OR BELOW 28 DEGREES ARE EXPECTED TONIGHT INTO 
  EARLY WEDNESDAY MORNING. OTHER WIND SHELTERED AREAS...SEVERAL 
  HOURS BETWEEN 29 AND 32 DEGREES IS POSSIBLE TONIGHT INTO EARLY 
  WEDNESDAY MORNING. SLIGHTLY WARMER BUT SIMILAR CONDITIONS ARE 
  EXPECTED WEDNESDAY NIGHT INTO THURSDAY. 

* IMPACTS...THE OJAI VALLEY CAN EXPERIENCE A HARD FREEZE WITH 
  DAMAGE TO EXPOSED PIPES. ALL WIND SHELTERED VALLEYS CAN 
  EXPERIENCE DAMAGE TO CROPS AND SENSITIVE VEGETATION. OUTDOOR 
  PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES OF 28 DEGREES OR LESS
FOR TWO OR MORE CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE
MEASURES TO SAVE CROPS AND SENSITIVE VEGETATION SHOULD BE
TAKEN.VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A
HOUSE OR BARN. EXPOSED PIPES SHOULD BE WRAPPED TO KEEP THEM FROM
BURSTING.

A FREEZE WATCH MEANS TEMPERATURES BETWEEN 29 AND 32 DEGREES OR
LESS WILL BE POSSIBLE FOR AT LEAST TWO CONSECUTIVE HOURS.
PROTECTIVE MEASURES TO SAVE OUTDOOR PLANTS MAY BE NEEDED.
VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A HOUSE OR
BARN.

&&

$$

CAZ037-038-161000-
/O.CON.KLOX.HZ.W.0012.151216T1000Z-151216T1700Z/
SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-CUYAMA VALLEY-
INCLUDING THE CITIES OF...PASO ROBLES...ATASCADERO...CUYAMA
857 PM PST TUE DEC 15 2015

...HARD FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* TEMPERATURE...SEVERAL HOURS OF TEMPERATURES AT OR BELOW 28 
  DEGREES ARE EXPECTED TONIGHT INTO EARLY WEDNESDAY MORNING. 

* IMPACTS...TEMPERATURES THIS COLD CAN RESULT IN A HARD FREEZE 
  WITH DAMAGE TO EXPOSED PIPES. DAMAGE TO CROPS AND SENSITIVE 
  VEGETATION IS LIKELY. OUTDOOR PETS AND LIVESTOCK ARE AT RISK 
  FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES OF 28 DEGREES OR LESS
FOR TWO OR MORE CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE
MEASURES TO SAVE CROPS AND SENSITIVE VEGETATION SHOULD BE
TAKEN.VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A
HOUSE OR BARN. EXPOSED PIPES SHOULD BE WRAPPED TO KEEP THEM FROM
BURSTING.

&&

$$

CAZ034-035-161000-
/O.CON.KLOX.FZ.W.0023.151216T1000Z-151216T1700Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
INCLUDING THE CITIES OF...SAN LUIS OBISPO...PISMO BEACH...
MORRO BAY...CAMBRIA...SAN SIMEON...SANTA MARIA...LOMPOC...
VANDENBERG
857 PM PST TUE DEC 15 2015

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* TEMPERATURE...SEVERAL HOURS OF TEMPERATURES AT OR BELOW 
  32 DEGREES ARE EXPECTED TONIGHT INTO EARLY WEDNESDAY MORNING. 

* IMPACTS...DAMAGE TO CROPS AND SENSITIVE VEGETATION IS LIKELY. 
  OUTDOOR PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS TEMPERATURES 29 AND 32 FOR TWO OR MORE
CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE MEASURES TO SAVE CROPS
AND SENSITIVE VEGETATION SHOULD BE TAKEN. VULNERABLE ANIMALS AND
PETS SHOULD BE KEPT INDOORS IN A HOUSE OR BARN.

&&

$$

CAZ046-053-054-161000-
/O.NEW.KLOX.WI.Y.0070.151216T0600Z-151216T1800Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON...
MOUNT WILSON...SANDBERG
857 PM PST TUE DEC 15 2015

...WIND ADVISORY IN EFFECT UNTIL 10 AM PST WEDNESDAY...

THE NATIONAL WEATHER SERVICE IN LOS ANGELES/OXNARD HAS ISSUED A
WIND ADVISORY FOR THE LOS ANGELES AND VENTURA COUNTY MOUNTAINS.
THIS ADVISORY IS IN EFFECT UNTIL 10 AM PST WEDNESDAY AND INCLUDES
THE SANTA MONICA MOUNTAINS.

* WINDS AND TIMING...NORTHEAST WINDS WILL INCREASE TO 15 TO 30
  MPH WITH GUSTS TO 45 MPH LATE THIS EVENING AND CONTINUE THROUGH
  WEDNESDAY MORNING.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY
  FOR DRIVERS OF HIGH PROFILE VEHICLES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN DRIVING...USE EXTRA CAUTION. BE PREPARED FOR SUDDEN GUSTY
CROSS WINDS.

&&

$$

CAZ039-088-548-161000-
/O.CON.KLOX.FR.Y.0021.151216T1000Z-151216T1700Z/
SANTA BARBARA COUNTY SOUTH COAST-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
INCLUDING THE CITIES OF...SANTA BARBARA...MONTECITO...
CARPINTERIA...SANTA CLARITA...NEWHALL...VALENCIA...PASADENA...
SAN GABRIEL...POMONA
857 PM PST TUE DEC 15 2015

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* TEMPERATURE...TEMPERATURES WILL DROP TO BETWEEN 33 AND 35
  DEGREES FOR SEVERAL HOURS TONIGHT AND INTO EARLY WEDNESDAY
  MORNING.

* IMPACTS...DAMAGE TO SENSITIVE VEGETATION IS POSSIBLE. OUTDOOR 
  PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS IMMINENT. MEASURES SHOULD BE
TAKEN TO PROTECT SENSITIVE OUTDOOR PLANTS. PETS SHOULD BE BROUGHT
INDOORS.

&&

$$

HALL
044 
WWUS76 KLOX 160920
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
120 AM PST WED DEC 16 2015

...VERY COLD TEMPERATURES POSSIBLE THROUGH EARLY THIS MORNING...

.A DRY AND COLD AIR MASS WILL ALLOW FOR ANOTHER COLD NIGHT
THROUGH THIS MORNING...WITH SEVERAL AREAS LIKELY SEEING COLDER
CONDITIONS THAN LAST NIGHT AND TEMPERATURES AROUND OR BELOW
FREEZING. TEMPERATURES SHOULD INCREASE A FEW DEGREES LATER TONIGHT
INTO THURSDAY...BUT SUB-FREEZING TEMPERATURES ARE POSSIBLE AGAIN
IN THE OJAI VALLEY.

CAZ044-161700-
/O.CON.KLOX.HZ.W.0012.151216T1000Z-151216T1700Z/
/O.CON.KLOX.FZ.A.0009.151217T1100Z-151217T1700Z/
VENTURA COUNTY INTERIOR VALLEYS-
INCLUDING THE CITIES OF...SANTA PAULA...FILLMORE...OJAI...PIRU
120 AM PST WED DEC 16 2015

...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING...
...FREEZE WATCH REMAINS IN EFFECT LATE TONIGHT THROUGH THURSDAY
MORNING...

* TEMPERATURE...AROUND THE OJAI VALLEY...SEVERAL HOURS OF
  TEMPERATURES AT OR BELOW 28 DEGREES ARE EXPECTED THROUGH MID
  MORNING. FOR OTHER WIND SHELTERED AREAS...EXPECT SEVERAL HOURS
  BETWEEN 29 AND 32 DEGREES. SLIGHTLY WARMER BUT SIMILAR
  CONDITIONS ARE EXPECTED TONIGHT INTO THURSDAY.

* IMPACTS...THE OJAI VALLEY CAN EXPERIENCE A HARD FREEZE WITH 
  DAMAGE TO EXPOSED PIPES. ALL WIND SHELTERED VALLEYS CAN 
  EXPERIENCE DAMAGE TO CROPS AND SENSITIVE VEGETATION. OUTDOOR 
  PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES OF 28 DEGREES OR LESS
FOR TWO OR MORE CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE
MEASURES TO SAVE CROPS AND SENSITIVE VEGETATION SHOULD BE
TAKEN.VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A
HOUSE OR BARN. EXPOSED PIPES SHOULD BE WRAPPED TO KEEP THEM FROM
BURSTING.

A FREEZE WATCH MEANS TEMPERATURES BETWEEN 29 AND 32 DEGREES OR
LESS WILL BE POSSIBLE FOR AT LEAST TWO CONSECUTIVE HOURS.
PROTECTIVE MEASURES TO SAVE OUTDOOR PLANTS MAY BE NEEDED.
VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A HOUSE OR
BARN.

&&

$$

CAZ036>038-161700-
/O.CON.KLOX.HZ.W.0012.151216T1000Z-151216T1700Z/
SANTA YNEZ VALLEY-SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-
CUYAMA VALLEY-
INCLUDING THE CITIES OF...SOLVANG...SANTA YNEZ...PASO ROBLES...
ATASCADERO...CUYAMA
120 AM PST WED DEC 16 2015

...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS
MORNING...

* TEMPERATURE...SEVERAL HOURS OF TEMPERATURES AT OR BELOW 28
  DEGREES ARE EXPECTED THROUGH MID MORNING.

* IMPACTS...TEMPERATURES THIS COLD CAN RESULT IN A HARD FREEZE 
  WITH DAMAGE TO EXPOSED PIPES. DAMAGE TO CROPS AND SENSITIVE 
  VEGETATION IS LIKELY. OUTDOOR PETS AND LIVESTOCK ARE AT RISK 
  FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A HARD FREEZE WARNING MEANS TEMPERATURES OF 28 DEGREES OR LESS
FOR TWO OR MORE CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE
MEASURES TO SAVE CROPS AND SENSITIVE VEGETATION SHOULD BE
TAKEN.VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A
HOUSE OR BARN. EXPOSED PIPES SHOULD BE WRAPPED TO KEEP THEM FROM
BURSTING.

&&

$$

CAZ034-035-161700-
/O.CON.KLOX.FZ.W.0023.151216T1000Z-151216T1700Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
INCLUDING THE CITIES OF...SAN LUIS OBISPO...PISMO BEACH...
MORRO BAY...CAMBRIA...SAN SIMEON...SANTA MARIA...LOMPOC...
VANDENBERG
120 AM PST WED DEC 16 2015

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* TEMPERATURE...SEVERAL HOURS OF TEMPERATURES AT OR BELOW 32
  DEGREES ARE EXPECTED THROUGH MID MORNING.

* IMPACTS...DAMAGE TO CROPS AND SENSITIVE VEGETATION IS LIKELY. 
  OUTDOOR PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WARNING MEANS TEMPERATURES 29 AND 32 FOR TWO OR MORE
CONSECUTIVE HOURS ARE IMMINENT. PROTECTIVE MEASURES TO SAVE CROPS
AND SENSITIVE VEGETATION SHOULD BE TAKEN. VULNERABLE ANIMALS AND
PETS SHOULD BE KEPT INDOORS IN A HOUSE OR BARN.

&&

$$

CAZ039-088-548-161700-
/O.CON.KLOX.FR.Y.0021.151216T1000Z-151216T1700Z/
SANTA BARBARA COUNTY SOUTH COAST-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
INCLUDING THE CITIES OF...SANTA BARBARA...MONTECITO...
CARPINTERIA...SANTA CLARITA...NEWHALL...VALENCIA...PASADENA...
SAN GABRIEL...POMONA
120 AM PST WED DEC 16 2015

...FROST ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* TEMPERATURE...TEMPERATURES WILL DROP TO BETWEEN 33 AND 35
  DEGREES FOR SEVERAL HOURS EARLY THIS MORNING.

* IMPACTS...DAMAGE TO SENSITIVE VEGETATION IS POSSIBLE. OUTDOOR 
  PETS AND LIVESTOCK ARE AT RISK FOR HYPOTHERMIA. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS IMMINENT. MEASURES SHOULD BE
TAKEN TO PROTECT SENSITIVE OUTDOOR PLANTS. PETS SHOULD BE BROUGHT
INDOORS.

&&

$$

CAZ046-053-054-161700-
/O.CON.KLOX.WI.Y.0070.000000T0000Z-151216T1800Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON...
MOUNT WILSON...SANDBERG
120 AM PST WED DEC 16 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WINDS AND TIMING...NORTHEAST WINDS WILL INCREASE TO 15 TO 30 MPH
  WITH GUSTS TO 45 MPH LATE THIS EVENING AND CONTINUE THROUGH MID
  MORNING.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR DRIVERS OF HIGH PROFILE VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN DRIVING...USE EXTRA CAUTION. BE PREPARED FOR SUDDEN GUSTY
CROSS WINDS.

&&

$$

CK/ASR
741 
WWUS76 KLOX 161658
NPWLOX

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE LOS ANGELES/OXNARD CA
858 AM PST WED DEC 16 2015

.A DRY AND COLD AIR MASS WILL ALLOW FOR ANOTHER COLD NIGHT
ESPECIALLY IN THE VENTURA COUNTY INTERIOR VALLEYS. TEMPERATURES
SHOULD INCREASE A FEW DEGREES LATER TONIGHT INTO THURSDAY...BUT
SUB- FREEZING TEMPERATURES ARE POSSIBLE AGAIN IN THE OJAI VALLEY.

CAZ044-170100-
/O.EXP.KLOX.HZ.W.0012.000000T0000Z-151216T1700Z/
/O.CON.KLOX.FZ.A.0009.151217T1100Z-151217T1700Z/
VENTURA COUNTY INTERIOR VALLEYS-
INCLUDING THE CITIES OF...SANTA PAULA...FILLMORE...OJAI...PIRU
858 AM PST WED DEC 16 2015

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TONIGHT THROUGH
THURSDAY MORNING...
...HARD FREEZE WARNING WILL EXPIRE AT 9 AM PST THIS MORNING...

* TEMPERATURE...AROUND THE OJAI VALLEY...SEVERAL HOURS OF
  TEMPERATURES BETWEEN 29 AND 32 DEGREES EXPECTED TONIGHT INTO
  THURSDAY.

* IMPACTS...WIND SHELTERED VALLEYS CAN EXPERIENCE DAMAGE TO CROPS
  AND SENSITIVE VEGETATION. OUTDOOR PETS AND LIVESTOCK ARE AT RISK
  FOR HYPOTHERMIA.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FREEZE WATCH MEANS TEMPERATURES BETWEEN 29 AND 32 DEGREES OR
LESS WILL BE POSSIBLE FOR AT LEAST TWO CONSECUTIVE HOURS.
PROTECTIVE MEASURES TO SAVE OUTDOOR PLANTS MAY BE NEEDED.
VULNERABLE ANIMALS AND PETS SHOULD BE KEPT INDOORS IN A HOUSE OR
BARN.

&&

$$

CAZ036>038-161800-
/O.EXP.KLOX.HZ.W.0012.000000T0000Z-151216T1700Z/
SANTA YNEZ VALLEY-SAN LUIS OBISPO COUNTY INTERIOR VALLEYS-
CUYAMA VALLEY-
INCLUDING THE CITIES OF...SOLVANG...SANTA YNEZ...PASO ROBLES...
ATASCADERO...CUYAMA
858 AM PST WED DEC 16 2015

...HARD FREEZE WARNING WILL EXPIRE AT 9 AM PST THIS MORNING...

TEMPERATURES IN THE SANTA YNEZ VALLEY ARE LARGELY ABOVE FREEZING
THIS MORNING. THE CUYAMA VALLEY IS A BIT COOLER...BUT SEEING
STEADY TEMPERATURE INCREASE SINCE SUNRISE SO WILL EXPIRE THERE
ALSO.

$$

CAZ034-035-161800-
/O.EXP.KLOX.FZ.W.0023.000000T0000Z-151216T1700Z/
SAN LUIS OBISPO COUNTY CENTRAL COAST-
SANTA BARBARA COUNTY CENTRAL COAST-
INCLUDING THE CITIES OF...SAN LUIS OBISPO...PISMO BEACH...
MORRO BAY...CAMBRIA...SAN SIMEON...SANTA MARIA...LOMPOC...
VANDENBERG
858 AM PST WED DEC 16 2015

...FREEZE WARNING WILL EXPIRE AT 9 AM PST THIS MORNING...

TEMPERATURES ALONG THE SLO COAST AND SANTA BARBARA CENTRAL COAST
ARE WELL ABOVE FREEZING SO EXPIRING THE FREEZE WARNING.

$$

CAZ039-088-548-161800-
/O.EXP.KLOX.FR.Y.0021.000000T0000Z-151216T1700Z/
SANTA BARBARA COUNTY SOUTH COAST-SANTA CLARITA VALLEY-
LOS ANGELES COUNTY SAN GABRIEL VALLEY-
INCLUDING THE CITIES OF...SANTA BARBARA...MONTECITO...
CARPINTERIA...SANTA CLARITA...NEWHALL...VALENCIA...PASADENA...
SAN GABRIEL...POMONA
858 AM PST WED DEC 16 2015

...FROST ADVISORY WILL EXPIRE AT 9 AM PST THIS MORNING...

TEMPERATURES IN THE SANTA BARBARA SOUTH COAST...SANTA CLARITA
VALLEY...AND SAN GABRIEL VALLEY ARE WELL ABOVE FREEZING SO
EXPIRING THE FROST ADVISORY.

$$

CAZ046-053-054-161800-
/O.CON.KLOX.WI.Y.0070.000000T0000Z-151216T1800Z/
SANTA MONICA MOUNTAINS RECREATIONAL AREA-VENTURA COUNTY MOUNTAINS-
LOS ANGELES COUNTY MOUNTAINS EXCLUDING THE SANTA MONICA RANGE-
INCLUDING THE CITIES OF...LOCKWOOD VALLEY...MOUNT PINOS...ACTON...
MOUNT WILSON...SANDBERG
858 AM PST WED DEC 16 2015

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING...

* WINDS AND TIMING...NORTHEAST WINDS OF 15 TO 30 MPH WITH GUSTS TO
  45 MPH WILL CONTINUE THROUGH MID MORNING.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR DRIVERS OF HIGH PROFILE VEHICLES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

WHEN DRIVING...USE EXTRA CAUTION. BE PREPARED FOR SUDDEN GUSTY
CROSS WINDS.

&&

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 14, 9:55 PM PSTHard Freeze WarningLOXSanta Barbara11 hr
Dec 15, 2:21 AM PSTHard Freeze WatchLOXSanta Barbara12 hr
Dec 15, 1:55 PM PSTFreeze WatchLOX25 hr
Dec 15, 1:55 PM PSTFreeze WarningLOX19 hr
Dec 15, 1:55 PM PSTHard Freeze WarningLOXSanta Barbara19 hr

Nearby

Frost Advisories in California, 2015Every frost advisory in 2015

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.