Alert archive / California / Winter Storm Warnings in 2013

Winter Storm Warning 4, NWS San Diego, CA

March 6, 2013Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this winter storm warning at Mar 6, 2013, 1:39 PM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Mar 7, 2013, 10:00 PM PST. It was in force for 29 hr. 4 reports came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued
Mar 6, 2013, 1:39 PM PST (21:39 UTC)
In effect from
Mar 7, 2013, 10:00 PM PST
Expired
Mar 9, 2013, 3:00 AM PST
In force
29 hr
Issued by
NWS San Diego, CA

Counties Riverside County, CA, San Bernardino County, CA, San Diego County, CA

The radar

The Santa Ana Mts radar (KSOX), 122 km from the middle of the area, began a volume at 21:42 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.

What was reported inside it

TimeReportWhereRemark
Mar 8, 5:00 AM PSTSNOW 215 E Alpine, CA2 INCHES OF SNOW REPORTED ON SUNRISE HIGHWAY. CHAINS ARE REQUIRED. CHAINS ALSO REQUIRED ON PALOMAR MOUNTAIN.
Mar 8, 7:35 AM PSTSNOW 1.51 Sse Barstow, CAA TRAINED WEATHER SPOTTER REPORTED 1.5 INCHES OF SNOW HAD ACCUMULATED SINCE 6 AM PST. ROADS AND VARIOUS GROUND SURFACES WERE COVERED NEAR HIS RESIDENCE AT AN ELEVATION OF 2700 FEET.
Mar 8, 10:00 AM PSTSNOW 0.53 Ene Barstow, CABARSTOW CO-OP MEASURED A HALF AN INCH OF SNOW AT 2220 FEET SINCE 730 AM THIS MORNING. FIRST MEASURABLE SNOW ON RECORD IN MARCH IN BARSTOW AT THE CO-OP STATION DATING BACK TO 1981.
Mar 9, 12:00 AM PSTSNOW 11 Sse Mountain Pass, CAMOUNTAIN PASS CO-OP OBSERVER MEASURED 1 INCH OF SNOW AT AN ELEVATION OF 4777 FEET.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The nearest sounding before it

San Diego, CA (KNKX), launched 12:00Z, 9.7 hours before the alert went out and 145 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 2013-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 8 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, San Diego, CA at 12:00Z on 2013-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 37 square meters per square second.193958Sfc1 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
8 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
599 m above ground
0-6 km bulk shear
42 kt
0-1 km storm-relative helicity
37 m²/s²
0-3 km storm-relative helicity
56 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.

885 
WWUS46 KSGX 062139
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
139 PM PST WED MAR 6 2013

...WINTER STORM WARNING FOR THE MOUNTAINS LATE THURSDAY NIGHT
THROUGH FRIDAY EVENING...

.A COLD WINTER STORM SYSTEM WILL BRING POTENTIALLY HEAVY SNOW TO
THE MOUNTAINS LATE THURSDAY NIGHT THROUGH FRIDAY EVENING. WHILE A
FEW SNOW SHOWERS ARE EXPECTED THROUGH THURSDAY EVENING...THE
HEAVY ACCUMULATIONS WILL LIKELY BEGIN LATE THURSDAY NIGHT OR
EARLY FRIDAY MORNING. SNOWFALL RATES OF UP TO 2 INCHES PER HOUR
ARE POSSIBLE WITH HEAVY SHOWERS...MAINLY FRIDAY. THE SNOW WILL
GRADUALLY TAPER FRIDAY NIGHT INTO EARLY SATURDAY.

CAZ055-056-058-070615-
/O.UPG.KSGX.WS.A.0002.130308T1100Z-130309T0600Z/
/O.NEW.KSGX.WS.W.0004.130308T0600Z-130309T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...LAKE ARROWHEAD...
MOUNT BALDY...MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...
RUNNING SPRINGS...TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...
GARNER VALLEY...IDYLLWILD...MOUNTAIN CENTER...PINE COVE...
PINYON PINES...VISTA GRANDE...CUYAMACA...JULIAN...MOUNT LAGUNA...
RANCHITA
139 PM PST WED MAR 6 2013

...WINTER STORM WARNING IN EFFECT FROM 10 PM THURSDAY TO 10 PM
PST FRIDAY ABOVE 4000 FEET...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING ABOVE 4000 FEET FOR HEAVY SNOW AND BLOWING SNOW...WHICH
IS IN EFFECT FROM 10 PM THURSDAY TO 10 PM PST FRIDAY. THE WINTER
STORM WATCH IS NO LONGER IN EFFECT.


* TIMING...LATE THURSDAY NIGHT THROUGH FRIDAY NIGHT.

* SNOW LEVELS...LOWERING TO AROUND 3500 FEET FOR EARLY FRIDAY
  THROUGH EARLY SATURDAY...LOCALLY LOWER IN ISOLATED THUNDERSTORMS
  AND HEAVIER SHOWERS FRIDAY INTO FRIDAY NIGHT.

* SNOW ACCUMULATIONS... 4 TO 8 INCHES BETWEEN 4000 AND 6000 FEET
  AND 6 TO 12 INCHES AT AND ABOVE 6000 FEET...WITH LOCALLY HIGHER
  AMOUNTS OVER RIDGES AND PEAKS.

* WINDS...SOUTHWEST TO WEST WINDS MOSTLY 15 TO 25 MPH WITH GUSTS
  35 TO 40 MPH...LOCALLY HIGHER NEAR CRESTS.

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN HEAVY SNOW...BLOWING
  SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SLIPPERY ROADWAYS AND
  POOR VISIBILITY IN HEAVY SNOW...BLOWING SNOW AND FOG. VEHICLES
  CAN GET STUCK IN HEAVY SNOW. TRAVEL ALONG INTERSTATE 15 THROUGH
  THE CAJON PASS AND INTERSTATE 8 THROUGH THE SAN DIEGO COUNTY
  MOUNTAINS COULD BE IMPACTED AT TIMES FRIDAY MORNING INTO FRIDAY
  NIGHT. RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE
  PREPARED FOR HAZARDOUS DRIVING CONDITIONS. THIS WEATHER MAY BE
  DEADLY FOR UNPREPARED CAMPERS AND HIKERS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WINTER STORM WATCH MEANS THERE IS A POTENTIAL FOR SIGNIFICANT
SNOW ACCUMULATIONS THAT MAY IMPACT TRAVEL. CONTINUE TO MONITOR
THE LATEST FORECASTS.

&&


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.

&&

$$
8 follow-up statements
641 
WWUS46 KSGX 070445
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
845 PM PST WED MAR 6 2013

...WINTER STORM WARNING FOR THE MOUNTAINS LATE THURSDAY NIGHT
THROUGH FRIDAY EVENING...

.A COLD WINTER STORM SYSTEM WILL BRING HEAVY SNOW TO THE
MOUNTAINS LATE THURSDAY NIGHT THROUGH FRIDAY EVENING. WHILE A FEW
SNOW SHOWERS ARE POSSIBLE THROUGH THURSDAY EVENING...THE HEAVY
ACCUMULATIONS WILL LIKELY BEGIN LATE THURSDAY NIGHT OR EARLY
FRIDAY MORNING. SNOWFALL RATES OF UP TO 2 INCHES PER HOUR ARE
POSSIBLE WITH HEAVY SHOWERS...MAINLY FRIDAY. THE SNOW WILL
GRADUALLY TAPER FRIDAY NIGHT INTO EARLY SATURDAY.

CAZ055-056-058-071300-
/O.CON.KSGX.WS.W.0004.130308T0600Z-130309T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...LAKE ARROWHEAD...
MOUNT BALDY...MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...
RUNNING SPRINGS...TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...
GARNER VALLEY...IDYLLWILD...MOUNTAIN CENTER...PINE COVE...
PINYON PINES...VISTA GRANDE...CUYAMACA...JULIAN...MOUNT LAGUNA...
RANCHITA
845 PM PST WED MAR 6 2013

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THURSDAY TO
10 PM PST FRIDAY ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM
10 PM THURSDAY TO 10 PM PST FRIDAY. 

* TIMING...LATE THURSDAY NIGHT THROUGH FRIDAY NIGHT.

* SNOW LEVELS...LOWERING TO AROUND 3500 FEET FOR EARLY FRIDAY 
  THROUGH EARLY SATURDAY...LOCALLY LOWER IN ISOLATED 
  THUNDERSTORMS AND HEAVIER SHOWERS FRIDAY INTO FRIDAY NIGHT. 

* SNOW ACCUMULATIONS... 4 TO 8 INCHES BETWEEN 4000 AND 6000 
  FEET AND 6 TO 12 INCHES AT AND ABOVE 6000 FEET...WITH 
  LOCALLY HIGHER AMOUNTS OVER RIDGES AND PEAKS. 

* WINDS...SOUTHWEST TO WEST WINDS MOSTLY 15 TO 25 MPH WITH 
  GUSTS 35 TO 40 MPH...LOCALLY HIGHER NEAR CRESTS. 

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN HEAVY SNOW...
  BLOWING SNOW AND FOG. 

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SLIPPERY ROADWAYS 
  AND POOR VISIBILITY IN HEAVY SNOW...BLOWING SNOW AND FOG. 
  VEHICLES CAN GET STUCK IN HEAVY SNOW. TRAVEL ALONG 
  INTERSTATE 15 THROUGH THE CAJON PASS AND INTERSTATE 8 
  THROUGH THE SAN DIEGO COUNTY MOUNTAINS COULD BE IMPACTED AT 
  TIMES FRIDAY MORNING INTO FRIDAY NIGHT. RESIDENTS AND 
  TRAVELERS INTO THE MOUNTAINS SHOULD BE PREPARED FOR 
  HAZARDOUS DRIVING CONDITIONS. THIS WEATHER MAY BE DEADLY FOR 
  UNPREPARED CAMPERS AND HIKERS.

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.

&&

$$

PALMER
958 
WWUS46 KSGX 071310
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
510 AM PST THU MAR 7 2013

...WINTER STORM WARNING FOR THE MOUNTAINS LATE TONIGHT THROUGH
FRIDAY EVENING...

.A COLD WINTER STORM SYSTEM WILL BRING HEAVY SNOW TO THE
MOUNTAINS TONIGHT THROUGH FRIDAY EVENING. AREAS OF LIGHT SNOW
ARE LIKELY TODAY...BUT THE HEAVY SNOW WILL BEGIN TONIGHT AND
CONTINUE THROUGH FRIDAY. SNOWFALL RATES OF UP TO 2 INCHES PER HOUR
ARE POSSIBLE WITH HEAVY SHOWERS...MAINLY FRIDAY. THE SNOW WILL
GRADUALLY TAPER OFF LATE FRIDAY NIGHT. HOWEVER...SNOW SHOWERS WILL
CONTINUE OVER THE MOUNTAINS SATURDAY AS A SECOND COLD UPPER LEVEL
LOW MOVES ACROSS SOUTHERN CALIFORNIA.

CAZ055-056-058-072100-
/O.CON.KSGX.WS.W.0004.130308T0600Z-130309T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...LAKE ARROWHEAD...
MOUNT BALDY...MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...
RUNNING SPRINGS...TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...
GARNER VALLEY...IDYLLWILD...MOUNTAIN CENTER...PINE COVE...
PINYON PINES...VISTA GRANDE...CUYAMACA...JULIAN...MOUNT LAGUNA...
RANCHITA
510 AM PST THU MAR 7 2013

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 10 PM PST FRIDAY...

* TIMING...TONIGHT THROUGH FRIDAY NIGHT.

* SNOW LEVELS...LOWERING TO AROUND 3500 FEET BY FRIDAY MORNING AND
  REMAINING VERY LOW THROUGH SATURDAY. SNOW LEVELS WILL LOWER TO
  3000 FEET IN ISOLATED THUNDERSTORMS AND HEAVIER SHOWERS FRIDAY
  INTO FRIDAY NIGHT.

* SNOW ACCUMULATIONS... 4 TO 8 INCHES BETWEEN 4000 AND 6000 FEET
  WITH 8 TO 12 INCHES ABOVE 6000 FEET...WITH 12 TO 18 INCHES IN
  SOME AREAS. 

* WINDS...SOUTHWEST TO WEST WINDS MOSTLY 15 TO 25 MPH WITH GUSTS
  35 TO 40 MPH...LOCALLY HIGHER NEAR CRESTS.

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN HEAVY SNOW...
  BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SLIPPERY ROADWAYS AND
  POOR VISIBILITY IN HEAVY SNOW...BLOWING SNOW AND FOG. TRAVEL
  ALONG INTERSTATE 15 THROUGH THE CAJON PASS AND INTERSTATE 8
  THROUGH THE SAN DIEGO COUNTY MOUNTAINS WILL BE IMPACTED AT TIMES
  FRIDAY. RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE
  PREPARED FOR HAZARDOUS DRIVING CONDITIONS. 

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.

&&

$$

MOEDE
177 
WWUS46 KSGX 072147
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
147 PM PST THU MAR 7 2013

...WINTER STORM WARNING CONTINUES FOR HIGHER MOUNTAINS LATE
TONIGHT THROUGH FRIDAY EVENING...

...WINTER WEATHER ADVISORY FOR SANTA ANA MOUNTAINS AND HIGH
DESERTS NOW IN EFFECT FROM 4 AM FRIDAY THROUGH 4 PM FRIDAY...

.A WINTER STORM WILL IMPACT SOUTHWEST CALIFORNIA TONIGHT THROUGH
SATURDAY. AREAS OF LIGHT SNOW ARE LIKELY THROUGH THIS
EVENING...WITH HEAVY SNOW LATE TONIGHT INTO FRIDAY EVENING AS THE
MAIN FRONTAL BAND MOVES ACROSS. SNOWFALL RATES OF 2 INCHES OR
MORE PER HOUR ARE POSSIBLE. THE SNOW WILL GRADUALLY TAPER OFF LATE
FRIDAY NIGHT. HOWEVER...SNOW SHOWERS WILL CONTINUE OVER THE
MOUNTAINS SATURDAY AS A SECOND BUT WEAKER FRONT MOVES ACROSS. 

CAZ055-056-058-080600-
/O.CON.KSGX.WS.W.0004.130308T0600Z-130309T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...LAKE ARROWHEAD...
MOUNT BALDY...MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...
RUNNING SPRINGS...TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...
GARNER VALLEY...IDYLLWILD...MOUNTAIN CENTER...PINE COVE...
PINYON PINES...VISTA GRANDE...CUYAMACA...JULIAN...MOUNT LAGUNA...
RANCHITA
147 PM PST THU MAR 7 2013

...WINTER STORM WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING
TO 10 PM PST FRIDAY ABOVE 4000 FEET...

A WINTER STORM WARNING ABOVE 4000 FEET REMAINS IN EFFECT FROM
10 PM THIS EVENING TO 10 PM PST FRIDAY. 

* SNOW LEVELS...LOWERING TO AROUND 3500 FEET BY FRIDAY MORNING
  AND REMAINING VERY LOW THROUGH SATURDAY. SNOW LEVELS WILL 
  LOWER TO 3000 FEET IN ISOLATED THUNDERSTORMS AND HEAVIER 
  SHOWERS FRIDAY INTO FRIDAY NIGHT. 

* SNOW ACCUMULATIONS... 4 TO 12 INCHES BETWEEN 4000 AND 5500 FEET
  WITH 12 TO 22 INCHES ABOVE 5500 FEET.

* WINDS...SOUTHWEST TO WEST WINDS 15 TO 25 MPH WITH GUSTS TO 40
  MPH.

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN HEAVY SNOW... 
  BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SLIPPERY ROADWAYS 
  AND POOR VISIBILITY IN HEAVY SNOW...BLOWING SNOW AND FOG. 
  TRAVEL ALONG INTERSTATE 15 THROUGH THE CAJON PASS AND 
  INTERSTATE 8 THROUGH THE SAN DIEGO COUNTY MOUNTAINS WILL BE 
  IMPACTED AT TIMES FRIDAY. RESIDENTS AND TRAVELERS INTO THE 
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS DRIVING 
  CONDITIONS.

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.

&&

$$

CAZ057-080600-
/O.NEW.KSGX.WW.Y.0007.130308T1200Z-130309T0000Z/
SANTA ANA MOUNTAINS AND FOOTHILLS-
147 PM PST THU MAR 7 2013

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY FOR SANTA ANA MOUNTAINS ABOVE 3500 FEET ELEVATION...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 AM TO 4 PM
PST FRIDAY.

* ELEVATION...SANTA ANA MOUNTAINS ABOVE 3500 FEET.

* SNOW LEVELS...3500 FEET.

* SNOW ACCUMULATIONS...ONE TO SIX INCHES. AMOUNTS OF 6 TO 10
  INCHES POSSIBLE AT ELEVATIONS ABOVE 5000 FEET.

* TIMING...FROM 4 AM FRIDAY MORNING TO 4 PM FRIDAY AFTERNOON.

* WINDS...WEST 15 TO 20 MPH. GUSTS TO 35 MPH.

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN HEAVY SNOW... 
  BLOWING SNOW AND FOG.

* IMPACTS...MOST FOREST ROADS WILL BECOME IMPASSABLE...ESPECIALLY
  THOSE ABOVE 3000 FEET. HAIL MAY ACCUMULATE ON HIGHWAY 74 IN THE
  LATE MORNING AND AFTERNOON. 

* OUTLOOK...SNOW SHOULD TAPER OFF TO SHOWERS AND END EARLY FRIDAY
  EVENING. SNOW SHOWERS MAY RESUME ON SATURDAY BUT ONLY LIGHT
  AMOUNTS ARE EXPECTED THEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ060-080600-
/O.NEW.KSGX.WW.Y.0007.130308T1200Z-130309T0000Z/
APPLE AND LUCERNE VALLEYS-
INCLUDING THE FOLLOWING LOCATIONS...HESPERIA
147 PM PST THU MAR 7 2013

...WINTER WEATHER ADVISORY IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY FOR ELEVATIONS ABOVE 3000 FEET...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
WEATHER ADVISORY FOR SNOW...WHICH IS IN EFFECT FROM 4 AM TO 4 PM
PST FRIDAY.

* ELEVATION...ABOVE 3000 FEET. 

* SNOW LEVELS...LOWERING TO 3000 FEET. 

* SNOW ACCUMULATIONS...ONE TO FOUR INCHES.

* TIMING...FROM 4 AM FRIDAY MORNING TO 4 PM FRIDAY AFTERNOON.

* LOCATIONS INCLUDE: HESPERIA...LUCERNE VALLEY...JOHNSON VALLEY.

* WINDS...WEST 15 TO 20 MPH WITH GUSTS TO 35 MPH.

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN SNOW AND BLOWING
  SNOW.

* IMPACTS...TRAVEL WILL BE HAZARDOUS. SNOW AND ICE ACCUMULATING ON
  ROADS.

* OUTLOOK...NOW SHOULD TAPER OFF TO SHOWERS AND END EARLY FRIDAY
  EVENING. SNOW SHOWERS MAY RESUME ON SATURDAY BUT ONLY LIGHT
  AMOUNTS ARE EXPECTED THEN.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

BALFOUR
622 
WWUS46 KSGX 080400
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
800 PM PST THU MAR 7 2013

...WINTER STORM WARNING CONTINUES FOR HIGHER MOUNTAINS LATE
TONIGHT THROUGH FRIDAY EVENING...

...WINTER WEATHER ADVISORY FOR SANTA ANA MOUNTAINS AND HIGH
DESERTS NOW IN EFFECT FROM 4 AM FRIDAY THROUGH 4 PM FRIDAY...

.A COLD WINTER STORM WILL IMPACT SOUTHWEST CALIFORNIA TONIGHT
THROUGH SATURDAY. AREAS OF LIGHT SNOW ARE LIKELY THROUGH THIS
EVENING...WITH HEAVY SNOW DEVELOPING LATE TONIGHT THROUGH FRIDAY
EVENING. SNOWFALL RATES OF 2 INCHES OR MORE PER HOUR ARE POSSIBLE.
THE SNOW SHOWERS WILL GRADUALLY TAPER OFF LATE FRIDAY NIGHT.
HOWEVER...ADDITIONAL SNOW SHOWERS WILL BE POSSIBLE OVER THE
MOUNTAINS ON SATURDAY...AS A SECONDARY WEAKER DISTURBANCE MOVES
ACROSS SOUTHERN CALIFORNIA

CAZ055-056-058-081230-
/O.CON.KSGX.WS.W.0004.130308T0600Z-130309T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...
I-15 AT 3500 FEET...LAKE ARROWHEAD...MOUNT BALDY...
MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...RUNNING SPRINGS...
TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...GARNER VALLEY...
IDYLLWILD...MOUNTAIN CENTER...PINE COVE...PINYON PINES...
VISTA GRANDE...BOULEVARD...CAMERON...CAMPO...CUYAMACA...
DESCANSO...JULIAN...LAKE HENSHAW...MORENA VILLAGE...
MOUNT LAGUNA...OAK GROVE...PINE HILLS...PINE VALLEY...RANCHITA...
SANTA YSABEL...WARNER SPRINGS
800 PM PST THU MAR 7 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST
FRIDAY...

A WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST FRIDAY. 

* SNOW LEVELS...AROUND 4500 FEET LATE TONIGHT...FALLING TO AROUND
  3000 FEET BY FRIDAY AFTERNOON. LOCALLY LOWER SNOW LEVELS WILL BE
  POSSIBLE IN HEAVIER SHOWERS OR THUNDERSTORMS.

* SNOW ACCUMULATIONS... 4 TO 12 INCHES BETWEEN 4000 AND 5500 
  FEET...WITH 12 TO 22 INCHES ABOVE 5500 FEET. 

* WINDS...SOUTHWEST TO WEST WINDS 15 TO 25 MPH...WITH GUSTS TO 40
  MPH.

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN HEAVY SNOW...BLOWING
  SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE HAZARDOUS DUE TO SLIPPERY ROADWAYS 
  AND POOR VISIBILITY IN HEAVY SNOW...BLOWING SNOW AND FOG. 
  TRAVEL ALONG INTERSTATE 15 THROUGH THE CAJON PASS AND 
  INTERSTATE 8 THROUGH THE SAN DIEGO COUNTY MOUNTAINS WILL BE 
  IMPACTED AT TIMES FRIDAY. RESIDENTS AND TRAVELERS INTO THE 
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS DRIVING 
  CONDITIONS. 

* OUTLOOK...SNOW SHOWERS WILL BECOME SCATTERED LATE FRIDAY EVENING
  AND FRIDAY NIGHT...AND MAY ONCE AGAIN INCREASE ON
  SATURDAY...WITH A SECONDARY DISTURBANCE. HOWEVER...ONLY LIGHT
  AMOUNTS ARE EXPECTED AT THIS TIME.

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.

&&

$$

CAZ060-081230-
/O.CON.KSGX.WW.Y.0007.130308T1200Z-130309T0000Z/
APPLE AND LUCERNE VALLEYS-
INCLUDING THE FOLLOWING LOCATIONS...HESPERIA
800 PM PST THU MAR 7 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM
PST FRIDAY...

A WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM PST
FRIDAY. 

* SNOW LEVELS...LOWERING TO 3000 FEET ON FRIDAY.

* SNOW ACCUMULATIONS...ONE TO FOUR INCHES.

* TIMING...FROM 4 AM FRIDAY MORNING TO 4 PM FRIDAY AFTERNOON.

* LOCATIONS INCLUDE: HESPERIA

* WINDS...WEST 15 TO 20 MPH...WITH GUSTS TO 35 MPH.

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN SNOW AND BLOWING SNOW.

* IMPACTS...TRAVEL WILL BE HAZARDOUS. SNOW AND ICE ACCUMULATING
  ON ROADS. 

* OUTLOOK...SNOW SHOULD TAPER OFF TO SHOWERS AND END EARLY FRIDAY
  EVENING. ISOLATED SNOW SHOWERS MAY RESUME ON SATURDAY...BUT
  LITTLE OR NO ADDITIONAL ACCUMULATIONS ARE EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ057-081230-
/O.CON.KSGX.WW.Y.0007.130308T1200Z-130309T0000Z/
SANTA ANA MOUNTAINS AND FOOTHILLS-
800 PM PST THU MAR 7 2013

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 AM TO 4 PM
PST FRIDAY ABOVE 3000 FEET...

A WINTER WEATHER ADVISORY ABOVE 3000 FEET REMAINS IN EFFECT FROM
4 AM TO 4 PM PST FRIDAY. 

* SNOW LEVELS...FALLING TO AROUND 3000 FEET.

* SNOW ACCUMULATIONS...ONE TO SIX INCHES. AMOUNTS OF 6 TO 10 
  INCHES POSSIBLE AT ELEVATIONS ABOVE 5000 FEET.

* TIMING...FROM 4 AM FRIDAY MORNING TO 4 PM FRIDAY AFTERNOON.

* WINDS...WEST 15 TO 20 MPH...WITH GUSTS TO 35 MPH.

* VISIBILITY...LOCALLY BELOW ONE QUARTER MILE IN HEAVY SNOW... 
  BLOWING SNOW AND FOG.

* IMPACTS...MOST FOREST ROADS WILL BECOME IMPASSABLE...ESPECIALLY
  THOSE ABOVE 3000 FEET. HAIL MAY ACCUMULATE ON HIGHWAY 74 IN THE
  LATE MORNING AND AFTERNOON.

* OUTLOOK...SNOW SHOULD TAPER OFF TO SHOWERS AND END EARLY FRIDAY
  EVENING. ISOLATED SNOW SHOWERS MAY RESUME ON SATURDAY...BUT
  LITTLE OR NO ADDITIONAL ACCUMULATIONS ARE EXPECTED.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

PALMER
780 
WWUS46 KSGX 081123
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
323 AM PST FRI MAR 8 2013

...WINTER STORM WARNING FOR THE MOUNTAINS THROUGH LATE TONIGHT...

.A COLD PACIFIC STORM WILL BRING LOCALLY HEAVY SNOW TO THE
MOUNTAINS TODAY...WITH SNOW SHOWERS DECREASING LATE TONIGHT 
INTO SATURDAY.

CAZ057-060-081230-
/O.CAN.KSGX.WW.Y.0007.130308T1200Z-130309T0000Z/
SANTA ANA MOUNTAINS AND FOOTHILLS-APPLE AND LUCERNE VALLEYS-
INCLUDING THE FOLLOWING LOCATIONS...HESPERIA
323 AM PST FRI MAR 8 2013

...WINTER WEATHER ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE
WINTER WEATHER ADVISORY. 

SNOW LEVEL WILL LOWER TO AROUND 3500 FEET FOR TONIGHT INTO EARLY
SATURDAY MORNING. LOCAL SNOWFALL OF AN INCH OR LESS IS POSSIBLE
NEAR HIGHER TERRAIN...MAINLY TONIGHT.

$$

CAZ058-082200-
/O.EXT.KSGX.WS.W.0004.000000T0000Z-130309T1100Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BOULEVARD...CUYAMACA...
DESCANSO...JULIAN...MOUNT LAGUNA...PINE VALLEY...RANCHITA
323 AM PST FRI MAR 8 2013

...WINTER STORM WARNING NOW IN EFFECT UNTIL 3 AM PST SATURDAY
ABOVE 3500 FEET...

THE WINTER STORM WARNING ABOVE 3500 FEET IS NOW IN EFFECT UNTIL
3 AM PST SATURDAY. 

* SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 4500 FEET...8 TO 12
  INCHES ABOVE 5500 FEET WITH LOCALLY GREATER AMOUNTS. LOCAL
  AMOUNTS OF 2 TO 4 INCHES BELOW 4500 FEET.

* WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS TO 45 MPH.

* VISIBILITY...LOCALLY REDUCED TO NEAR ZERO AT TIMES IN
  SNOW...BLOWING SNOW...AND DENSE FOG.

* IMPACTS...TRAVEL ALONG INTERSTATE 8 THROUGH THE MOUNTAINS COULD
  BE IMPACTED AT TIMES THROUGH TONIGHT. TRAVELERS THROUGH THE
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER
  CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS
  BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND
  CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS. THIS WEATHER 
  COULD BE DEADLY FOR UNPREPARED CAMPERS OR HIKERS.

* OUTLOOK...SCATTERED SHOWERS MAY CONTINUE THROUGH SATURDAY WITH
  SNOW LEVELS RISING TO AROUND 4500 FEET WITH GENERALLY LIGHT
  ADDITIONAL 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.

&&

$$

CAZ055-056-082200-
/O.CON.KSGX.WS.W.0004.000000T0000Z-130309T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...
I-15 AT 3500 FEET...LAKE ARROWHEAD...MOUNT BALDY...
MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...RUNNING SPRINGS...
TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...GARNER VALLEY...
IDYLLWILD...MOUNTAIN CENTER...PINE COVE...PINYON PINES...
VISTA GRANDE
323 AM PST FRI MAR 8 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3500 FEET...

A WINTER STORM WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL
10 PM PST THIS EVENING. 

* SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 4500 FEET...8 TO 12
  INCHES ABOVE 5500 FEET WITH LOCALLY GREATER AMOUNTS. LOCAL
  AMOUNTS OF 2 TO 4 INCHES BELOW 4500 FEET.

* WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS TO 45 MPH.

* VISIBILITY...LOCALLY REDUCED TO NEAR ZERO AT TIMES IN
  SNOW...BLOWING SNOW...AND DENSE FOG.

* IMPACTS...TRAVEL ALONG INTERSTATE 15 THROUGH THE CAJON PASS
  COULD BE IMPACTED AT TIMES INTO THIS EVENING. TRAVELERS THROUGH
  THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER
  CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS
  BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE EXTRA FOOD AND
  CLOTHING IF YOU MUST TRAVEL INTO THE MOUNTAINS.

* OUTLOOK...SCATTERED SHOWERS MAY CONTINUE THROUGH SATURDAY WITH
  SNOW LEVELS RISING TO AROUND 4500 FEET WITH GENERALLY LIGHT
  ADDITIONAL 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.

&&

$$

YOU MAY ALSO GO TO THE CALTRANS WEBSITE TO CHECK FOR ROAD
CONDITIONS AND CLOSURES AT: HTTP://WWW.DOT.CA.GOV/CGI-
BIN/ROADS.CGI OR THE CALIFORNIA HIGHWAY PATROL (CHP) WEBSITE AT:
HTTP://CAD.CHP.CA.GOV/

FOR ROAD CONDITION INFORMATION IN CALIFORNIA...DIAL 8 0 0 4 2 7 7
6 2 3 IF INSIDE CALIFORNIA OR 9 1 6 4 5 5 7 6 2 3 IF OUTSIDE
CALIFORNIA.

17
721 
WWUS46 KSGX 082131
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
131 PM PST FRI MAR 8 2013

CAZ055-056-090600-
/O.CON.KSGX.WS.W.0004.000000T0000Z-130309T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...
I-15 AT 3500 FEET...LAKE ARROWHEAD...MOUNT BALDY...
MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...RUNNING SPRINGS...
TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...GARNER VALLEY...
IDYLLWILD...MOUNTAIN CENTER...PINE COVE...PINYON PINES...
VISTA GRANDE
131 PM PST FRI MAR 8 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 3500 FEET...

A WINTER STORM WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL
10 PM PST THIS EVENING. 

* SNOW ACCUMULATIONS...AN ADDITIONAL 6 TO 10 INCHES OF SNOW THIS
  AFTERNON AND EVENING. STORM TOTAL SNOWFALL 12 TO 22 INCHES ABOVE
  500 FEET AND 4 TO 12 INCHES BETWEEN 3500 AND 5500 FEET. 

* WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS TO 45 MPH.

* VISIBILITY...LOCALLY REDUCED TO NEAR ZERO AT TIMES IN SNOW... 
  BLOWING SNOW...AND DENSE FOG.

* IMPACTS...TRAVEL ALONG INTERSTATE 15 THROUGH THE CAJON PASS 
  COULD BE IMPACTED AT TIMES INTO THIS EVENING. TRAVELERS 
  THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS 
  WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE 
  LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS 
  AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE 
  MOUNTAINS.

* OUTLOOK...SCATTERED SHOWERS MAY CONTINUE THROUGH SATURDAY 
  WITH SNOW LEVELS RISING TO AROUND 4500 FEET WITH GENERALLY 
  LIGHT ADDITIONAL 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.

&&

$$

CAZ058-090600-
/O.CON.KSGX.WS.W.0004.000000T0000Z-130309T1100Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BOULEVARD...CUYAMACA...
DESCANSO...JULIAN...MOUNT LAGUNA...PINE VALLEY...RANCHITA
131 PM PST FRI MAR 8 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST SATURDAY
ABOVE 3500 FEET...

A WINTER STORM WARNING ABOVE 3500 FEET REMAINS IN EFFECT UNTIL
3 AM PST SATURDAY. 

* SNOW ACCUMULATIONS...AN ADDITIONAL 5 TO 10 INCHES OF SNOW
  POSSIBLE THIS AFTERNOON THROUGH EARLY SATURDAY MORNING. TOTAL
  SNOW ACCUMULATIONS...12 TO 24 INCHES ABOVE 5500 FEET...AND 5 TO
  12 INCHES BETWEEN 3500 AND 5500 FEET. 

* WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS TO 45 MPH.

* VISIBILITY...LOCALLY REDUCED TO NEAR ZERO AT TIMES IN SNOW... 
  BLOWING SNOW...AND DENSE FOG.

* IMPACTS...TRAVEL ALONG INTERSTATE 8 THROUGH THE MOUNTAINS 
  COULDBE IMPACTED AT TIMES THROUGH TONIGHT. TRAVELERS THROUGH 
  THE MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER 
  WEATHER CONDITIONS. MOTORISTS ARE URGED TO CHECK THE LATEST 
  ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY CHAINS AND TAKE 
  EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO THE 
  MOUNTAINS. THIS WEATHER COULD BE DEADLY FOR UNPREPARED 
  CAMPERS OR HIKERS.

* OUTLOOK...SCATTERED SHOWERS MAY CONTINUE THROUGH SATURDAY 
  WITH SNOW LEVELS RISING TO AROUND 4500 FEET WITH GENERALLY 
  LIGHT ADDITIONAL 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.

&&

$$

BALFOUR
323 
WWUS46 KSGX 090148
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
548 PM PST FRI MAR 8 2013

CAZ055-056-090600-
/O.CON.KSGX.WS.W.0004.000000T0000Z-130309T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...
I-15 AT 3500 FEET...LAKE ARROWHEAD...MOUNT BALDY...
MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...RUNNING SPRINGS...
TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...GARNER VALLEY...
IDYLLWILD...MOUNTAIN CENTER...PINE COVE...PINYON PINES...
VISTA GRANDE
548 PM PST FRI MAR 8 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING...

* SNOW ACCUMULATIONS...AN ADDITIONAL 2 TO 3 INCHES OF SNOW THIS
  EVENING INTO TONIGHT. 

* WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS TO 35 MPH.

* VISIBILITY...LOCALLY REDUCED AT TIMES IN SNOW... BLOWING
  SNOW...AND FOG.

* IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR
  HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO
  CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO
  THE MOUNTAINS. TEMPERATURES TONIGHT WILL DROP BELOW FREEZING
  TONIGHT...CREATING ICY ROAD CONDITIONS.

* OUTLOOK...SCATTERED SHOWERS MAY CONTINUE THROUGH SATURDAY WITH
  LITTLE ADDITIONAL ACCUMULATIONS ARE EXPECTED.

* REPORTS...PINE COVE............... 12 INCHES 
            IDYLLWILD...............  9 INCHES
            BIG BEAR................  8 INCHES
            LAKE ARROWHEAD..........  5 INCHES
            WRIGHTWOOD..............  4 INCHES

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.

&&

$$

CAZ058-090900-
/O.CON.KSGX.WS.W.0004.000000T0000Z-130309T1100Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BOULEVARD...CUYAMACA...
DESCANSO...JULIAN...MOUNT LAGUNA...PINE VALLEY...RANCHITA
548 PM PST FRI MAR 8 2013

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

* SNOW ACCUMULATIONS...AN ADDITIONAL 2 TO 3 INCHES OF SNOW THIS
  EVENING INTO TONIGHT. 

* WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS TO 35 MPH.

* VISIBILITY...LOCALLY REDUCED AT TIMES IN SNOW... BLOWING
  SNOW...AND FOG.

* IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR
  HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO
  CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO
  THE MOUNTAINS. TEMPERATURES TONIGHT WILL DROP BELOW FREEZING
  TONIGHT...CREATING ICY ROAD CONDITIONS.

* OUTLOOK...SCATTERED SHOWERS MAY CONTINUE THROUGH SATURDAY WITH
  LITTLE ADDITIONAL ACCUMULATIONS ARE EXPECTED.

* REPORTS...PALOMAR MOUNTAIN........ 11 INCHES 
            MOUNT LAGUNA............ 10 INCHES
            CUYAMACA STATE PARK.....5.5 INCHES
            JULIAN..................  4 INCHES
            GUATAY..................  4 INCHES  

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.

&&

$$

JT/MOEDE
232 
WWUS46 KSGX 090556
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
956 PM PST FRI MAR 8 2013

...WINTRY WEATHER CONTINUING OVER THE MOUNTAINS TONIGHT...

.SNOW SHOWERS WILL CONTINUE IN THE MOUNTAINS TONIGHT IN THE COLD
UNSTABLE AIRMASS BEHIND THE MAIN UPPER LOW. MOST OF THE SNOW WILL
FALL OVER THE RIVERSIDE AND SAN DIEGO COUNTY MOUNTAINS WHERE
SEVERAL MORE INCHES OF SNOW ARE LIKELY THROUGH DAWN. TEMPERATURES
WILL REMAIN BELOW FREEZING THROUGH SATURDAY MORNING...SO THE ROADS
MAY BE SNOW AND ICE COVERED THROUGH MIDDAY. THE SNOW SHOWERS WILL
DECREASE IN COVERAGE SATURDAY. 

CAZ055-056-091200-
/O.EXP.KSGX.WS.W.0004.000000T0000Z-130309T0600Z/
/O.NEW.KSGX.WW.Y.0008.130309T0600Z-130309T1200Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...ANGELUS OAKS...BALDWIN LAKE...
BARTON FLATS...BIG BEAR CITY...BIG BEAR LAKE...CRESTLINE...
FAWNSKIN...FOREST FALLS...I-15 AT CAJON SUMMIT...
I-15 AT 3500 FEET...LAKE ARROWHEAD...MOUNT BALDY...
MOUNTAIN HOME VILLAGE...OAK GLEN...PHELAN...RUNNING SPRINGS...
TWIN PEAKS...WRIGHTWOOD...AGUANGA...ANZA...GARNER VALLEY...
IDYLLWILD...MOUNTAIN CENTER...PINE COVE...PINYON PINES...
VISTA GRANDE
956 PM PST FRI MAR 8 2013

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 4 AM PST SATURDAY...
...WINTER STORM WARNING WILL EXPIRE AT 10 PM PST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
WEATHER ADVISORY WHICH IS IN EFFECT UNTIL 4 AM PST SATURDAY.

* SNOW ACCUMULATIONS...AN ADDITIONAL 1 TO 2 INCHES OF SNOW IN SAN
  BERNARDINO COUNTY...WITH 2 TO 3 INCHES OF SNOW IN RIVERSIDE
  COUNTY TONIGHT.

* WINDS...SOUTHWEST TO WEST 15 TO 25 MPH WITH GUSTS TO 35 MPH.

* VISIBILITY...LOCALLY REDUCED AT TIMES IN SNOW... BLOWING
  SNOW...AND FOG.

* IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR
  HAZARDOUS WINTER WEATHER CONDITIONS. MOTORISTS ARE URGED TO
  CHECK THE LATEST ROAD REPORTS BEFORE DEPARTING. ALWAYS CARRY
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING IF YOU MUST TRAVEL INTO
  THE MOUNTAINS. TEMPERATURES TONIGHT WILL DROP BELOW FREEZING
  TONIGHT...CREATING ICY ROAD CONDITIONS.

* OUTLOOK...COLD SATURDAY MORNING WITH TEMPERATURES BELOW FREEZING
  THROUGH MIDDAY. ROAD MAY BE SNOW AND ICE COVERED AND SLIPPERY. 

* STORM TOTAL SNOW FALL SO FAR:

            PINE COVE............... 12 INCHES 
            IDYLLWILD...............  9 INCHES
            BIG BEAR................  8 INCHES
            LAKE ARROWHEAD..........  5 INCHES
            WRIGHTWOOD..............  4 INCHES

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$

CAZ058-091400-
/O.NEW.KSGX.WW.Y.0008.130309T1100Z-130309T1700Z/
/O.CON.KSGX.WS.W.0004.000000T0000Z-130309T1100Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BOULEVARD...CAMERON...CAMPO...
CUYAMACA...DESCANSO...JULIAN...LAKE HENSHAW...MORENA VILLAGE...
MOUNT LAGUNA...OAK GROVE...PINE HILLS...PINE VALLEY...RANCHITA...
SANTA YSABEL...WARNER SPRINGS
956 PM PST FRI MAR 8 2013

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 3 AM PST
SATURDAY...
...WINTER WEATHER ADVISORY IN EFFECT FROM 3 AM TO 9 AM PST
SATURDAY...

A WINTER STORM WARNING CONTINUE THROUGH 3 AM. BANDS OF MODERATE
TO HEAVY SNOW WILL CONTINUE ACROSS THE MOUNTAINS DURING THIS TIME.
THE WINTER STORM WARNING WILL BE FOLLOWED BY A WINTER WEATHER
ADVISORY FROM 3 AM TO 9 AM SATURDAY.

* SNOW ACCUMULATIONS...AN ADDITIONAL 2 TO 4 INCHES OF SNOW TONIGHT
  THROUGH SATURDAY MORNING.

* WINDS...SOUTHWEST TO WEST 15 TO 30 MPH WITH GUSTS TO 45 MPH.

* VISIBILITY...REDUCED AT TIMES IN SNOW...BLOWING SNOW...AND FOG.

* IMPACTS...TRAVELERS THROUGH THE MOUNTAINS SHOULD BE PREPARED FOR
  HAZARDOUS WINTER WEATHER CONDITIONS. INTERSTATE 8 WILL MAY
  BECOME SNOW COVERED AND SLIPPERY LATER TONIGHT THROUGH SATURDAY
  MORNING. MOTORISTS ARE URGED TO CHECK THE LATEST ROAD REPORTS
  BEFORE DEPARTING. TEMPERATURES TONIGHT WILL DROP BELOW FREEZING
  TONIGHT...CREATING ICY ROAD CONDITIONS.

* OUTLOOK...SCATTERED SNOW SHOWERS WILL DECREASE IN COVERAGE
  SATURDAY AFTERNOON AND END BY EVENING. 

* REPORTS...PALOMAR MOUNTAIN........ 11 INCHES
            MOUNT LAGUNA............ 10 INCHES
            CUYAMACA STATE PARK..... 5.5 INCHES
            JULIAN..................  4 INCHES        
            GUATAY..................  4 INCHES

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.

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

&&

$$

MOEDE

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 San Diego, CA wrote its last area forecast discussion before this winter storm warning went out at Mar 6, 9:15 AM PST, 4 hours 24 minutes earlier.

Area forecast discussion, Mar 6, 9:15 AM PST, 4 hours 24 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
915 AM PST WED MAR 6 2013

.SYNOPSIS...
VARIABLE CLOUDS TODAY WITH TEMPERATURES GENERALLY LOWER THAN
YESTERDAY. A WEAK LOW PRESSURE TROUGH WILL CONTINUE THE COOLING
TREND THROUGH THURSDAY WITH INCREASING CLOUDS AND PERIODS OF LIGHT
RAIN OR SHOWERS OVER AND WEST OF THE MOUNTAINS. PARTLY CLOUDY AND
WINDY IN THE DESERTS. A LOW PRESSURE SYSTEM AND ASSOCIATED COLD
FRONT WILL BRING MUCH LOWER TEMPERATURES...WIDESPREAD SHOWERS AND
MOUNTAIN SNOW FROM LATE THURSDAY NIGHT THROUGH FRIDAY NIGHT.
OCCASIONAL THUNDERSTORMS ARE ALSO POSSIBLE ON FRIDAY. SHOWERS TAPER
OFF ON SATURDAY...AND DRY WEATHER RETURNS ON SUNDAY WITH OFFSHORE
FLOW AND A WARMING TREND THROUGH THE FIRST HALF OF NEXT WEEK.

&&

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

THIS MORNING...SATELLITE IMAGERY SHOWS THE WEAK UPPER TROUGH THAT
BROUGHT PERIODS OF LIGHT RAIN OR DRIZZLE TO SOME LOCATIONS ALONG AND
WEST THE COASTAL MTN SLOPES HAS MOVED EAST. AS A RESULT...THE LOW
CLOUDS ARE CLEARING FROM THE COAST INLAND.

BROAD CYCLONIC FLOW ALOFT...ASSOCIATED WITH THE LOW PRESSURE SYSTEM
OFF THE OREGON COAST...WILL CONTINUE THROUGH THURSDAY AND THE MARINE
LAYER WILL CONTINUE TO DEEPEN. EMBEDDED WEAK SHORTWAVES IN THE UPPER
FLOW WILL GENERATE ENOUGH LIFT FOR POCKETS OF LIGHT RAIN AND DRIZZLE
THROUGH THURSDAY. THE FIRST OF THESE SHORTWAVES SHOULD AFFECT SOCAL
THIS AFTERNOON/EVENING. AREAS OF DENSE FOG WILL CONTINUE TO IMPACT
THE MOUNTAINS.  STRONG GUSTY WINDS WILL CONTINUE ALONG THE DESERT
SLOPES AND THROUGH MOUNTAIN PASSES UNTIL LATE TONIGHT.

NUMERICAL MODELS ARE MOSTLY IN GOOD AGREEMENT ON THE TIMING AND
TRAJECTORY OF THE LOW PRESSURE SYSTEM...BUT HAVE REGISTERED SOME
SMALL BUT POTENTIALLY SIGNIFICANT CHANGES SINCE THE 12Z CYCLE FROM
YESTERDAY. THE MODELS NOW INDICATE THAT THE CLOSED UPPER LOW OFF THE
OREGON COAST WILL EVOLVE INTO AND OPEN TROUGH BY LATE TONIGHT AS THE
TROUGH ELONGATES. A NEW CLOSED LOW WILL THEN FORM OFF THE NRN CA
COAST BY THU MORNING AS A VIGOROUS SHORTWAVE MOVES INTO THE BASE OF
THE MEAN TROUGH. THIS HAS CHANGED THE TRACK AND TIMING OF THE UPPER
LOW SO THAT IT IS NOW FARTHER WEST AS IT MOVES SOUTH OFF THE CA
COAST...AND FARTHER SOUTH AS IT TURNS EAST ACROSS SOCAL. THIS COULD
RESULT IN A SOMEWHAT EARLIER PRECIP ONSET...WITH INCREASED AMOUNTS.
THE PRECIP DISTRIBUTION COULD ALSO BE ALTERED TO FAVOR SAN DIEGO
COUNTY OVER AREAS TO THE NORTH.

THE SYSTEM IS EXPECTED TO BRING COLDER WEATHER...ALONG WITH
SIGNIFICANT PRECIP AND GUSTY WEST TO NW WINDS TO THE REGION. THE
BULK OF THE PRECIP WILL LIKELY FALL BETWEEN LATE THU NIGHT AND LATE
FRI NIGHT AS THE COLD FRONT MOVES THROUGH...FOLLOWED BY THE CLOSED
UPPER LOW. AS THE COLDEST AIR MOVES IN WITH THE UPPER LOW ON
FRI...TSTMS COULD DEVELOP AS THE ATMOSPHERE BECOMES MORE UNSTABLE.

CURRENT RAINFALL ESTIMATES ARE FOR ONE QUARTER TO ONE HALF INCH OVER
THE COASTAL AREAS AND VALLEYS WITH LOCALLY HIGHER AMOUNTS OF AROUND
THREE QUARTERS OF AN INCH. ONE TO ONE AND ONE QUARTER INCH IN THE
MOUNTAINS...AND ONE QUARTER INCH OR LESS IN THE DESERTS.

SNOW LEVELS WILL LOWER TO AROUND 4500 FT TH NIGHT...THEN DOWN TO
3500 FT BY FRI EVENING. SNOW ACCUMULATIONS OF 6 TO 12 INCHES ARE
EXPECTED AT AND ABOVE 6000 FEET WITH LOCALLY HIGHER AMOUNTS OVER
RIDGES AND PEAKS. 4 TO 8 INCHES IS EXPECTED BETWEEN 4000 AND 6000
FEET. MINOR ACCUMULATIONS ARE POSSIBLE BELOW 3000 FT DURING HEAVER
SHOWERS.

PRECIP WILL TAPER OFF ON SAT AS THE LOW PRESSURE SYSTEM MOVES EWD
INTO THE FOUR CORNERS AREA. HOWEVER...A FEW SHOWERS ARE POSSIBLE AS
A SHORTWAVE MOVES OVER THE REGION.

AS THE LOW MOVES EAST...AN UPPER RIDGE WILL BUILD IN FROM THE WEST
AND A SFC HIGH WILL MOVE INTO THE GREAT BASIN FROM THE NN. THIS WILL
BRING DRY WEATHER WITH OFFSHORE FLOW AND A GRADUAL WARMING TREND FOR
SUN THROUGH MID-WEEK.

&&

.AVIATION...
061633Z...FEW-SCT CLDS 3000-5000 FT MSL AND UNRESTRICTED VIS OVER
THE COASTAL AREAS WILL CONTINUE THROUGH 07/0000 UTC.
MEANWHILE...BKN-SCT CLDS 3000-5000 FT MSL OVER THE INLAND VALLEYS
AND COASTAL SLOPES WILL SLOWLY BECOME SCT-FEW THROUGH 07/0000 UTC
WITH PRIMARILY UNRESTRICTED VIS. 07/0000-0600 UTC...WIDESPREAD
OVC-BKN STRATUS...WITH BASES 3000-3500 FT MSL AND TOPS 6000-7000 FT
MSL...WILL FORM 45-55 SM INLAND UP AGAINST THE COASTAL SLOPES.
SCATTERED EMBEDDED LIGHT SHOWERS WILL BRING LOCAL VIS/CIGS OF
3-5SM/2000 FT AGL. MTN OBSCURATION WILL OCCUR DUE TO CLDS/SHOWERS.
DESERT SLOPES AND ADJACENT DESERTS WILL HAVE UNRESTRICTED VIS AND
FEW-SCT CLDS AOA 20000 FT MSL THROUGH THURSDAY MORNING.

W TO SW WINDS 15-25 KT WITH GUSTS TO 40 KT WILL BRING WK-MOD UDDFS
OVER AND E OF MTNS THROUGH THURSDAY MORNING.

&&

.MARINE...
A NORTHWEST SWELL WILL BUILD TOMORROW...PEAKING AT 6-7 FT/14 SECONDS
OVER THE OUTER WATERS. THIS SWELL WILL CONTINUE THROUGH
FRIDAY...BRINGING STRONG RIP CURRENTS...3-5 FOOT SURF AND OCCASIONAL
SETS TO 7 FEET TO EXPOSED WEST-FACING SHORES.

A LARGE TROUGH OF LOW PRESSURE WILL MOVE THROUGH SOUTHERN CALIFORNIA
FRIDAY...BRINGING STRONGER WEST TO NORTHWESTERLY WINDS...CHOPPY SEAS
AND POSSIBLE THUNDERSTORMS TO THE COASTAL WATERS. CURRENTLY...WIND
GUSTS LOOK TO BE IN THE 25 TO 30 KNOT RANGE...WHICH WOULD LIKELY
NECESSITATE A SMALL CRAFT ADVISORY ISSUANCE FOR THAT TIME.
THUNDERSTORMS MAY BRING SMALL HAIL...CLOUD TO WATER
LIGHTNING...ERRATIC GUSTY WINDS...HEAVY RAIN AND SMALL HAIL/GRAUPEL.

THE SYSTEM WILL ALSO BRING LARGER SHORT-PERIOD NORTHWEST
SWELL...WHICH CURRENTLY LOOKS TO PEAK AT 10-11 FEET OVER THE OUTER
WATERS LATE FRIDAY NIGHT AND EARLY SATURDAY. THIS MAY BE ENOUGH TO
BRING HIGH SURF TO WEST-FACING BEACHES. AT THE VERY LEAST...THERE
WILL BE ROUGH SURF CONDITIONS AND STRONG RIP CURRENTS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY THROUGH 3 AM THURSDAY FOR THE COACHELLA
     VALLEY...RIVERSIDE COUNTY MOUNTAINS...SAN DIEGO COUNTY
     DESERTS...SAN DIEGO COUNTY MOUNTAINS...THE APPLE AND LUCERNE
     VALLEYS...SAN BERNARDINO COUNTY MOUNTAINS.

     WINTER STORM WATCH FROM 3 AM TO 10 PM FRIDAY FOR THE SAN
     BERNARDINO COUNTY MOUNTAINS...RIVERSIDE COUNTY MOUNTAINS AND
     THE SAN DIEGO COUNTY MOUNTAINS.

&&

PUBLIC...PG
AVIATION/MARINE...HARRISON
Hazardous weather outlook, Mar 6, 5:00 AM PST, 8 hours 39 minutes before
HAZARDOUS WEATHER OUTLOOK
NATIONAL WEATHER SERVICE SAN DIEGO CA
500 AM PST WED MAR 6 2013

CAZ042-043-048-050-055>058-060>062-PZZ750-775-071400-
ORANGE COUNTY COASTAL AREAS-SAN DIEGO COUNTY COASTAL AREAS-
SAN BERNARDINO AND RIVERSIDE COUNTY VALLEYS-THE INLAND EMPIRE-
SAN DIEGO COUNTY VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
RIVERSIDE COUNTY MOUNTAINS-SANTA ANA MOUNTAINS AND FOOTHILLS-
SAN DIEGO COUNTY MOUNTAINS-APPLE AND LUCERNE VALLEYS-
COACHELLA VALLEY-SAN DIEGO COUNTY DESERTS-
COASTAL WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER AND OUT
30 NM-
WATERS FROM SAN MATEO POINT TO THE MEXICAN BORDER EXTENDING 30 TO
60 NM OUT INCLUDING SAN CLEMENTE ISLAND-
500 AM PST WED MAR 6 2013

THIS HAZARDOUS WEATHER OUTLOOK IS FOR ALL OF EXTREME
SOUTHWESTERN CALIFORNIA.

.DAY ONE...TODAY AND TONIGHT.

GUSTY SOUTHWEST 15 TO 30 MPH WITH GUSTS TO 45 MPH IN THE MOUNTAINS
AND DESERTS.

.DAYS TWO THROUGH SEVEN...THURSDAY THROUGH TUESDAY.

GUSTY SOUTHWEST WINDS TO 45 MPH FOR THE MOUNTAINS AND DESERTS EARLY
THURSDAY MORNING.

A WINTER STORM WATCH IS IN EFFECT FOR THE MOUNTAINS FROM LATE
THURSDAY NIGHT THROUGH FRIDAY EVENING. A COLD TROUGH OF LOW PRESSURE
FROM THE NORTHWEST IS FORECAST TO BRING 6 TO 12 INCHES OF SNOW ABOVE
6000 FEET. THE SNOW LEVELS WILL LOWER TO 3500 FEET BY FRIDAY
EVENING.

COASTAL AND VALLEY AREAS WILL SEE RAIN FROM LATE THURSDAY NIGHT
CONTINUING THROUGH FRIDAY. ISOLATED THUNDERSTORMS WITH SMALL HAIL
WILL BE POSSIBLE FRIDAY AND FRIDAY NIGHT.

.SPOTTER INFORMATION STATEMENT...
SKYWARN WEATHER ACTIVATION MAY BE REQUESTED FRIDAY.

MOEDE

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 8:39 PM PSTWinter Storm WatchSGXRiverside, San Bernardino, San Diego17 hr

Nearby

Winter Storm Warnings in California, 2013Every winter storm warning in 2013

Sources

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