Alert archive / California / Winter Storm Warnings in 2016

Winter Storm Warning 2, NWS San Diego, CA

January 30, 2016Riverside County, San Bernardino County, California

NWS San Diego, CA issued this winter storm warning at Jan 30, 2016, 4:10 AM PST for Riverside County, San Bernardino County, California. It took effect at Jan 31, 2016, 10:00 AM PST. It was in force for 17 hr. 1 report 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
Jan 30, 2016, 4:10 AM PST (12:10 UTC)
In effect from
Jan 31, 2016, 10:00 AM PST
Expired
Feb 1, 2016, 3:13 AM PST
In force
17 hr
Issued by
NWS San Diego, CA

Counties Riverside County, CA, San Bernardino County, CA

The radar

The Santa Ana Mts radar (KSOX), 152 km from the middle of the area, began a volume at 12:13 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
Jan 31, 7:00 PM PSTHEAVY SNOW 73 Wnw Big Bear Lake, CAREPORT FROM FAWNSKIN, STILL SNOWING THERE.

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, 0.2 hours before the alert went out and 195 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 2016-01-30Temperature 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 2016-01-30The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 128 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
1597 m above ground
0-6 km bulk shear
55 kt
0-1 km storm-relative helicity
128 m²/s²
0-3 km storm-relative helicity
138 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

999 
WWUS46 KSGX 301210
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
410 AM PST SAT JAN 30 2016

...WINTER STORM WARNING FOR THE MOUNTAINS OF SAN BERNARDINO AND
RIVERSIDE COUNTIES ABOVE 4500 FEET FOR SUNDAY AFTERNOON AND
EVENING...
...WINTER WEATHER ADVISORY FOR THE MOUNTAINS OF SAN DIEGO COUNTY
ABOVE 4500 FEET FOR SUNDAY NIGHT.

.A WINTER STORM WILL MOVE THROUGH SOUTHERN CALIFORNIA SUNDAY AND
SUNDAY NIGHT BRINGING PERIODS OF MODERATE TO HEAVY SNOW AND
STRONG GUSTY WEST WINDS. SNOW LEVELS WILL LOWER FROM 7000 FEET...
TO NEAR 6000 FEET LATE SUNDAY AFTERNOON...AND 4000 TO 4500 FEET
LATE SUNDAY NIGHT.

CAZ055-056-302130-
/O.UPG.KSGX.WS.A.0003.160131T0000Z-160201T1800Z/
/O.NEW.KSGX.WS.W.0002.160131T2000Z-160201T0800Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...CRESTLINE...LAKE ARROWHEAD...RUNNING SPRINGS...
WRIGHTWOOD
410 AM PST SAT JAN 30 2016

...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO MIDNIGHT
PST SUNDAY NIGHT ABOVE 4500 FEET...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM NOON SUNDAY TO MIDNIGHT
PST SUNDAY NIGHT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

* SNOWFALL...A FEW INCHES DOWN TO AROUND 4500 FEET...6 TO 12
  INCHES ABOVE 5500 FEET...WITH 12 TO 20 INCHES ABOVE 7000 FEET.

* SNOW LEVELS...LOWERING FROM 7000 FEET...TO NEAR 6000 FEET LATE
  SUNDAY AFTERNOON...AND 4000 TO 4500 FEET LATE SUNDAY NIGHT.

* TIMING...LIGHTER PRECIPITATION DEVELOPING SATURDAY NIGHT AND
  EARLY SUNDAY...BECOMING MODERATE TO HEAVY AT TIMES WITH THE COLD
  FRONTAL PASSAGE LATE SUNDAY AFTERNOON...THEN DECREASING SUNDAY
  NIGHT.

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS
  TO 75 MPH.

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE
  PREPARED FOR HAZARDOUS DRIVING CONDITIONS. IF POSSIBLE...CARRY
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING.

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.

&&

$$

CAZ058-302130-
/O.UPG.KSGX.WS.A.0003.160131T0000Z-160201T1800Z/
/O.NEW.KSGX.WW.Y.0003.160201T0200Z-160201T1200Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...PINE VALLEY
410 AM PST SAT JAN 30 2016

...WINTER WEATHER ADVISORY IN EFFECT FROM 6 PM SUNDAY TO 4 AM PST
MONDAY ABOVE 4500 FEET...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
WEATHER ADVISORY...WHICH IS IN EFFECT FROM 6 PM SUNDAY TO 4 AM
PST MONDAY. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

* SNOWFALL...A FEW INCHES DOWN TO AROUND 4500 FEET...WITH 4 TO 8
  INCHES ABOVE 5500 FEET.

* SNOW LEVELS...LOWERING FROM 6500 LATE SUNDAY AFTERNOON TO 4000
  TO 4500 FEET LATE SUNDAY NIGHT.

* TIMING...SNOW LEVELS FALLING RAPIDLY SUNDAY EVENING FOLLOWING
  THE COLD FRONTAL PASSAGE EARLY SUNDAY EVENING. NUMEROUS SHOWERS
  BEHIND THE FRONT WILL BRING PERIODS OF MODERATE TO BRIEFLY HEAVY
  SNOWFALL SUNDAY EVENING...DECREASING LATE SUNDAY NIGHT.

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS
  TO 75 MPH.

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS WINTER DRIVING CONDITIONS. IF TRAVEL IS 
  NECESSARY...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

17
6 follow-up statements
765 
WWUS46 KSGX 302122
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
122 PM PST SAT JAN 30 2016

...WINTER STORM WARNING FOR THE SAN BERNARDINO AND RIVERSIDE
COUNTY MOUNTAINS ABOVE 4500 FEET SUNDAY AFTERNOON AND EVENING...

...WINTER WEATHER ADVISORY FOR THE SAN DIEGO COUNTY MOUNTAINS
ABOVE 4500 FEET SUNDAY NIGHT.

.A WINTER STORM WILL MOVE THROUGH SOUTHERN CALIFORNIA SUNDAY AND
SUNDAY NIGHT CREATING PERIODS OF MODERATE TO HEAVY SNOW AND
STRONG GUSTY WEST WINDS. SNOW LEVELS WILL LOWER FROM 7500 FEET
SUNDAY MORNING...TO NEAR 6500 FEET SUNDAY AFTERNOON...NEAR 5500 FT
SUNDAY EVENING...AND 3500 FEET LATE SUNDAY NIGHT. A DUSTING IS
POSSIBLE AROUND 3000 FT MONDAY MORNING. PRECIPITATION WILL END
LATE MONDAY MORNING...AND WINDS WILL DIMINISH MONDAY NIGHT.

CAZ055-056-310600-
/O.CON.KSGX.WS.W.0002.160131T2000Z-160201T0800Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...CRESTLINE...LAKE ARROWHEAD...RUNNING SPRINGS...
WRIGHTWOOD
122 PM PST SAT JAN 30 2016

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO
MIDNIGHT PST SUNDAY NIGHT...

* SNOWFALL...
  3500 TO 4000 FT...UP TO 1 INCH
  4000 TO 5000 FT...2 TO 5 INCHES
  5000 TO 6000 FT...3 TO 9 INCHES
  6000 TO 7000 FT...6 TO 12 INCHES
  ABOVE 7000 FT.....12 TO 20 INCHES

* SNOW LEVELS...7500 FEET SUNDAY MORNING...TO 6500 FEET SUNDAY
  AFTERNOON...TO 5500 FT SUNDAY EVENING...AND TO 3500 FEET LATE
  SUNDAY NIGHT. A DUSTING IS POSSIBLE AROUND 3000 FT MONDAY
  MORNING.

* TIMING...LIGHTER PRECIPITATION DEVELOPING TONIGHT AND EARLY
  SUNDAY...BECOMING MODERATE TO HEAVY AT TIMES WITH THE COLD
  FRONTAL PASSAGE SUNDAY AFTERNOON...THEN DECREASING SUNDAY
  NIGHT.

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS 
  TO 75 MPH. 

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS DRIVING CONDITIONS. IF POSSIBLE...CARRY 
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

CAZ058-310600-
/O.CON.KSGX.WW.Y.0003.160201T0200Z-160201T1200Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...PINE VALLEY
122 PM PST SAT JAN 30 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM SUNDAY TO
4 AM PST MONDAY...

* SNOWFALL...1 TO 3 INCHES 3500 FEET TO 4500 FT...WITH 3 TO 6
  INCHES ABOVE 4500 FEET.

* SNOW LEVELS...LOWERING FROM 6500 LATE SUNDAY AFTERNOON TO 4000
  FEET LATE SUNDAY NIGHT AND 3000 FT MONDAY MORNING.

* TIMING...SNOW LEVELS FALLING RAPIDLY SUNDAY EVENING FOLLOWING 
  THE COLD FRONTAL PASSAGE EARLY SUNDAY EVENING. NUMEROUS 
  SHOWERS BEHIND THE FRONT WILL BRING PERIODS OF MODERATE TO 
  BRIEFLY HEAVY SNOWFALL SUNDAY EVENING...DECREASING LATE SUNDAY 
  NIGHT. 

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS 
  TO 75 MPH. 

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS WINTER DRIVING CONDITIONS. IF TRAVEL IS 
  NECESSARY...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

JJT
201 
WWUS46 KSGX 310514
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
914 PM PST SAT JAN 30 2016

...WINTER STORM WARNING FOR THE SAN BERNARDINO AND RIVERSIDE
COUNTY MOUNTAINS ABOVE 4500 FEET SUNDAY AFTERNOON AND EVENING...

...WINTER WEATHER ADVISORY FOR THE SAN DIEGO COUNTY MOUNTAINS
ABOVE 4500 FEET SUNDAY NIGHT.

.A WINTER STORM WILL MOVE THROUGH SOUTHERN CALIFORNIA SUNDAY AND
SUNDAY NIGHT CREATING PERIODS OF MODERATE TO HEAVY SNOW AND
STRONG GUSTY WESTERLY WINDS. SNOW LEVELS WILL LOWER FROM 7500
FEET SUNDAY MORNING...TO NEAR 6500 FEET SUNDAY AFTERNOON...NEAR
5500 FT SUNDAY EVENING...AND 3500 FEET LATE SUNDAY NIGHT. A
DUSTING IS POSSIBLE AROUND 3000 FT MONDAY MORNING. PRECIPITATION
WILL END LATE MONDAY MORNING...AND WINDS WILL DIMINISH MONDAY
NIGHT.

CAZ055-056-311315-
/O.CON.KSGX.WS.W.0002.160131T2000Z-160201T0800Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...CRESTLINE...LAKE ARROWHEAD...RUNNING SPRINGS...
WRIGHTWOOD
914 PM PST SAT JAN 30 2016

...WINTER STORM WARNING REMAINS IN EFFECT FROM NOON SUNDAY TO
MIDNIGHT PST SUNDAY NIGHT...

* SNOWFALL... 3500 TO 4000 FT...UP TO 1 INCH 4000 TO 5000 FT...2
  TO 5 INCHES 5000 TO 6000 FT...3 TO 9 INCHES 6000 TO 7000 FT...6
  TO 12 INCHES ABOVE 7000 FT...12 TO 20 INCHES

* SNOW LEVELS...7500 FEET SUNDAY MORNING...TO 6500 FEET SUNDAY
  AFTERNOON...TO 5500 FT SUNDAY EVENING...AND TO 3500 FEET LATE
  SUNDAY NIGHT. 

* TIMING...LIGHTER PRECIPITATION DEVELOPING TONIGHT AND EARLY 
  SUNDAY...BECOMING MODERATE TO HEAVY AT TIMES WITH THE COLD 
  FRONTAL PASSAGE SUNDAY AFTERNOON...THEN DECREASING SUNDAY 
  NIGHT. 

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS 
  TO 75 MPH. 

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS DRIVING CONDITIONS. IF POSSIBLE...CARRY 
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

CAZ058-311315-
/O.CON.KSGX.WW.Y.0003.160201T0200Z-160201T1200Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...PINE VALLEY
914 PM PST SAT JAN 30 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 6 PM SUNDAY TO
4 AM PST MONDAY...

* SNOWFALL...1 TO 3 INCHES 3500 FEET TO 4500 FT...WITH 3 TO 6 
  INCHES ABOVE 4500 FEET. 

* SNOW LEVELS...LOWERING FROM 6500 LATE SUNDAY AFTERNOON TO 4000 
  FEET LATE SUNDAY NIGHT AND 3000 FT MONDAY MORNING. 

* TIMING...SNOW LEVELS FALLING RAPIDLY SUNDAY EVENING FOLLOWING
  THE COLD FRONTAL PASSAGE EARLY SUNDAY EVENING. NUMEROUS SHOWERS
  BEHIND THE FRONT WILL BRING PERIODS OF MODERATE TO BRIEFLY HEAVY
  SNOWFALL SUNDAY EVENING...DECREASING LATE SUNDAY NIGHT.

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS 
  TO 75 MPH. 

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS WINTER DRIVING CONDITIONS. IF TRAVEL IS 
  NECESSARY...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

JAD
934 
WWUS46 KSGX 311139
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
339 AM PST SUN JAN 31 2016

...WINTER STORM WARNING FOR THE SAN BERNARDINO AND RIVERSIDE
COUNTY MOUNTAINS ABOVE 4500 FEET FOR LATE THIS MORNING THROUGH
THIS EVENING...

...WINTER WEATHER ADVISORY FOR THE SAN DIEGO COUNTY MOUNTAINS
ABOVE 4500 FEET FOR LATE THIS AFTERNOON THROUGH LATE TONIGHT...

.A WINTER STORM WILL MOVE THROUGH SOUTHERN CALIFORNIA THROUGH 
TONIGHT BRINGING PERIODS OF MODERATE TO HEAVY SNOW AND STRONG
GUSTY WEST WINDS. SNOW LEVELS WILL LOWER FROM 7500 FEET THIS
MORNING...TO NEAR 6000 FEET LATE THIS AFTERNOON...5000 FEET EARLY
THIS EVENING...AND 4000 FEET BY MONDAY MORNING.

CAZ055-056-312130-
/O.EXT.KSGX.WS.W.0002.160131T1800Z-160201T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...CRESTLINE...LAKE ARROWHEAD...RUNNING SPRINGS...
WRIGHTWOOD
339 AM PST SUN JAN 31 2016

...WINTER STORM WARNING NOW IN EFFECT FROM 10 AM THIS MORNING TO
10 PM PST THIS EVENING...

* SNOWFALL...A FEW INCHES DOWN TO AROUND 4500 FEET...4 TO 8 INCHES
  ABOVE 5500 FEET...AND 12 TO 20 INCHES ABOVE 7000 FEET. 

* SNOW LEVELS...7500 FEET THIS MORNING...LOWERING TO NEAR 6000
  FEET LATE THIS AFTERNOON...5000 FEET EARLY THIS EVENING...AND
  4000 FEET BY MONDAY MORNING.

* TIMING...LIGHTER PRECIPITATION...INTENSIFYING DURING THE LATE
  MORNING...BECOMING HEAVY AT TIMES WITH THE COLD FRONTAL PASSAGE
  THIS AFTERNOON...WITH SHOWERS DECREASING TONIGHT.

* WINDS...SOUTHWEST TO WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH.
  ISOLATED GUSTS TO 75 MPH. BECOMING WEST TO NORTHWEST DURING THE
  LATE AFTERNOON THROUGH THIS EVENING.

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS DRIVING CONDITIONS. IF POSSIBLE...CARRY 
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

CAZ058-312130-
/O.EXT.KSGX.WW.Y.0003.160201T0000Z-160201T1200Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...PINE VALLEY
339 AM PST SUN JAN 31 2016

...WINTER WEATHER ADVISORY NOW IN EFFECT FROM 4 PM THIS AFTERNOON
TO 4 AM PST MONDAY...

* SNOWFALL...A FEW INCHES DOWN TO AROUND 4500 FEET...WITH 4 TO 8
  INCHES ABOVE 5500 FEET.

* SNOW LEVELS...LOWERING TO NEAR 6000 FEET LATE THIS AFTERNOON...
  5000 FEET EARLY THIS EVENING...AND 4000 FEET BY MONDAY MORNING.

* TIMING...NUMEROUS SHOWERS BEHIND THE FRONT WILL BRING PERIODS OF
  MODERATE TO BRIEFLY HEAVY SNOWFALL LATE THIS AFTERNOON AND THIS
  EVENING...DECREASING LATE TONIGHT.

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS 
  TO 75 MPH. 

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS WINTER DRIVING CONDITIONS. IF TRAVEL IS 
  NECESSARY...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

17
143 
WWUS46 KSGX 312117
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
117 PM PST SUN JAN 31 2016

...WINTER STORM WARNING FOR THE SAN BERNARDINO AND RIVERSIDE
COUNTY MOUNTAINS ABOVE 4500 FEET THROUGH THIS EVENING...

...WINTER WEATHER ADVISORY FOR THE SAN DIEGO COUNTY MOUNTAINS
ABOVE 4500 FEET FOR LATE THIS AFTERNOON THROUGH LATE TONIGHT...

.A WINTER STORM MOVING THROUGH SOUTHERN CALIFORNIA THROUGH
TONIGHT WILL CONTINUE PERIODS OF MODERATE TO HEAVY SNOW AND
STRONG GUSTY WEST WINDS THROUGH THIS EVENING IN NORTHERN AREAS AND
OVERNIGHT IN SOUTHERN AREAS. SNOW LEVELS WILL LOWER FROM 6500
FEET THIS AFTERNOON...TO 5000 FEET EARLY THIS EVENING...AND 3000
TO 3500 FEET BY MONDAY MORNING.

CAZ055-056-010600-
/O.CON.KSGX.WS.W.0002.000000T0000Z-160201T0600Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...CRESTLINE...LAKE ARROWHEAD...RUNNING SPRINGS...
WRIGHTWOOD
117 PM PST SUN JAN 31 2016

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

* SNOWFALL...TRACE TO 1 INCH FROM 3500 TO 4000 FT...2 TO 4 INCHES
  FROM 4000 TO 5000 FT...3 TO 10 INCHES FROM 5000 TO 6000 FT...6
  TO 15 INCHES FROM 6000 TO 7000 FT AND 12 TO 22 INCHES ABOVE
  7000 FT.

* SNOW LEVELS...6500 FEET THIS AFTERNOON...5000 FEET EARLY THIS
  EVENING...AND 3000 TO 3500 FEET BY MONDAY MORNING.

* TIMING...PRECIPITATION BECOMING HEAVY AT TIMES WITH THE COLD
  FRONTAL PASSAGE THIS AFTERNOON. SHOWERS DECREASING TONIGHT.

* WINDS...SOUTHWEST TO WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH
  EARLY THIS AFTERNOON. ISOLATED GUSTS TO 75 MPH. BECOMING WEST TO
  NORTHWEST LATE THIS AFTERNOON THROUGH THIS EVENING.

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS DRIVING CONDITIONS. IF POSSIBLE...CARRY 
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

CAZ058-010600-
/O.CON.KSGX.WW.Y.0003.160201T0000Z-160201T1200Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...PINE VALLEY
117 PM PST SUN JAN 31 2016

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 AM PST MONDAY...

* SNOWFALL...1 TO 3 INCHES 3500 TO 4500 FT...3 TO 5 INCHES 4500 TO
  5500 FT...4 TO 8 INCHES ABOVE 5500 FEET.

* SNOW LEVELS...LOWERING TO NEAR 6000 FEET LATE THIS AFTERNOON...
  5000 FEET EARLY THIS EVENING...AND 3500 FEET BY MONDAY MORNING.

* TIMING...NUMEROUS SHOWERS BEHIND THE FRONT WILL BRING PERIODS 
  OF MODERATE TO BRIEFLY HEAVY SNOWFALL LATE THIS AFTERNOON AND 
  THIS EVENING...DECREASING LATE TONIGHT. 

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS 
  TO 75 MPH. 

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS WINTER DRIVING CONDITIONS. IF TRAVEL IS 
  NECESSARY...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

JJT
747 
WWUS46 KSGX 010337
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
737 PM PST SUN JAN 31 2016

...WINTER STORM WARNING FOR THE SAN BERNARDINO AND RIVERSIDE
COUNTY MOUNTAINS ABOVE 4500 FEET THROUGH TONIGHT...

...WINTER WEATHER ADVISORY FOR THE SAN DIEGO COUNTY MOUNTAINS
ABOVE 4000 FEET THROUGH TONIGHT...

.A WINTER STORM MOVING THROUGH SOUTHERN CALIFORNIA WILL CONTINUE
PERIODS OF MODERATE TO HEAVY SNOW AND STRONG GUSTY WEST WINDS
THROUGH THE NIGHT. SNOW LEVELS WILL LOWER TO 3000 TO 4000 FEET
BY MORNING.

CAZ055-056-011400-
/O.EXT.KSGX.WS.W.0002.000000T0000Z-160201T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...CRESTLINE...LAKE ARROWHEAD...RUNNING SPRINGS...
WRIGHTWOOD
737 PM PST SUN JAN 31 2016

...WINTER STORM WARNING NOW IN EFFECT UNTIL 6 AM PST MONDAY...

* STORM TOTAL SNOWFALL...TRACE TO 2 INCHES FROM 3500 TO 4000
  FT...2 TO 4 INCHES FROM 4000 TO 5000 FT...3 TO 8 INCHES FROM
  5000 TO 6000 FT...5 TO 10 INCHES FROM 6000 TO 7000 FT AND 8 TO
  16 INCHES ABOVE 7000 FT.

* SNOW LEVELS...LOWERING TO 3500 FEET OVERNIGHT.

* WINDS...WEST TO NORTHWEST 30 TO 40 MPH WITH GUSTS TO 65 MPH.
 
* VISIBILITY...REDUCED TO NEAR ZERO AT TIMES IN SNOW...BLOWING
  SNOW...AND DENSE FOG.

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE 
  PREPARED FOR HAZARDOUS DRIVING CONDITIONS. IF POSSIBLE...CARRY 
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING. 

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.

&&

$$

CAZ058-011400-
/O.EXT.KSGX.WW.Y.0003.000000T0000Z-160201T1400Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...JULIAN...PINE VALLEY
737 PM PST SUN JAN 31 2016

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM PST MONDAY...

* STORM TOTAL SNOWFALL...1 TO 3 INCHES 3500 TO 4500 FT...3 TO 5
  INCHES 4500 TO 5500 FT...4 TO 8 INCHES ABOVE 5500 FEET.

* SNOW LEVELS...LOWERING TO 3500 FEET BY MONDAY MORNING.

* TIMING...NUMEROUS SHOWERS OVERNIGHT WILL BRING PERIODS OF
  MODERATE TO BRIEFLY HEAVY SNOWFALL.

* WINDS...WEST 30 TO 40 MPH WITH GUSTS TO 65 MPH. ISOLATED GUSTS 
  TO 75 MPH. 

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE
  PREPARED FOR HAZARDOUS WINTER DRIVING CONDITIONS. HIGHER
  ELEVATIONS OF THE I-8 CORRIDOR WILL BE IMPACTED. IF TRAVEL IS
  NECESSARY...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING.

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.

&&

$$

JAD
858 
WWUS46 KSGX 011113
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
313 AM PST MON FEB 1 2016

...WINTER WEATHER ADVISORY FOR THE SAN DIEGO COUNTY MOUNTAINS
ABOVE 4000 FEET THROUGH 8 AM THIS MORNING...

.A WINTER STORM OVER THE SOUTHWEST STATES WILL CONTINUE TO MOVE
EASTWARD. SCATTERED SNOW SHOWERS OVER THE SAN DIEGO COUNTY
MOUNTAINS WILL CONTINUE PAST SUNRISE...THEN DIMINISH.

CAZ055-056-011215-
/O.CAN.KSGX.WS.W.0002.000000T0000Z-160201T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
313 AM PST MON FEB 1 2016

...WINTER STORM WARNING IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS CANCELLED THE
WINTER STORM WARNING. 

SCATTERED LIGHT SNOW SHOWERS WILL CONTINUE UNTIL AROUND SUNRISE...
THEN DIMINISH. ADDITIONAL SNOWFALL OF AN INCH OR LESS IS EXPECTED.

$$

CAZ058-011600-
/O.EXT.KSGX.WW.Y.0003.000000T0000Z-160201T1600Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...JULIAN...PINE VALLEY
313 AM PST MON FEB 1 2016

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 8 AM PST THIS
MORNING...

* LOCATION...MAINLY NEAR AND SOUTH OF JULIAN.

* ADDITIONAL SNOWFALL...ADDITIONAL SNOWFALL OF 1 TO 3 INCHES ABOVE
  4000 FEET.

* STORM TOTAL SNOWFALL...LESS THAN 3 INCHES BELOW 4500 FEET...3 TO
  5 INCHES BELOW 5500 FEET...5 TO 8 INCHES ABOVE 5500 FEET.

* SNOW LEVELS...AROUND 3500 FEET.

* WINDS...WEST 25 TO 35 MPH WITH GUSTS TO 60 MPH.

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

* IMPACTS...RESIDENTS AND TRAVELERS INTO THE MOUNTAINS SHOULD BE
  PREPARED FOR HAZARDOUS WINTER DRIVING CONDITIONS. IF TRAVEL IS
  NECESSARY...CARRY CHAINS AND TAKE EXTRA FOOD AND CLOTHING. SNOW
  WILL IMPACT TRAVEL ON PORTIONS OF THE 8 FREEWAY AND THE SUNRISE
  HIGHWAY.

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.

&&

$$

17

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 30, 3:48 AM PSTHigh Wind WarningSGXOrange, Riverside, San Bernardino, San Diego47 hr
Jan 30, 3:48 AM PSTWind AdvisorySGXOrange, Riverside, San Bernardino, San Diego62 hr
Jan 30, 4:10 AM PSTWinter Weather AdvisorySGXSan Diego52 hr

Nearby

Winter Storm Warnings in California, 2016Every winter storm warning in 2016

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.