Alert archive / California / Winter Storm Warnings in 2017

Winter Storm Warning 2, NWS San Diego, CA

January 18, 2017Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this winter storm warning at Jan 18, 2017, 1:31 PM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Jan 18, 2017, 10:00 PM PST. It was in force for 55 hr. 6 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
Jan 18, 2017, 1:31 PM PST (21:31 UTC)
In effect from
Jan 18, 2017, 10:00 PM PST
Expired
Jan 21, 2017, 5:02 AM PST
In force
55 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 21:30 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 19, 11:00 AM PSTHEAVY SNOW 126 W Palm Springs, CALONG VALLEY RANGER STATION REPORTS STORM TOTAL SNOW OF 12 INCHES.
Jan 20, 10:57 AM PSTHEAVY SNOW 203 Ne Running Springs, CASAN BERNARDINO COUNTY DEPARTMENT OF PUBLIC WORKS REPORTS 20 INCHES OF SNOW SINCE THURSDAY AM.
Jan 20, 11:00 AM PSTHEAVY SNOW 18Running Springs, CASAN BERNARDINO COUNTY DEPARTMENT OF PUBLIC WORKS REPORTS 18 INCHES OF SNOW SINCE THURSDAY AM.
Jan 20, 11:00 AM PSTHEAVY SNOW 18Running Springs, CASAN BERNARDINO COUNTY DEPARTMENT OF PUBLIC WORKS REPORTS 18 INCHES OF SNOW SINCE THURSDAY MORNING.
Jan 20, 11:02 AM PSTHEAVY SNOW 182 E Running Springs, CASAN BERNARDINO COUNTY DEPARTMENT OF PUBLIC WORKS REPORTS 18 INCHES OF SNOW SINCE THURSDAY AM.
Jan 20, 1:06 PM PSTSNOW 164 Ene Running Springs, CAHIGHWAY 18 CLOSED FROM SNOW VALLEY TO BIG BEAR DAM DUE TO BIG RIGS AND VEHICLES STUCK IN SNOW.

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, 9.5 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 2017-01-18Temperature 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 2017-01-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 11 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
730 m above ground
0-6 km bulk shear
22 kt
0-1 km storm-relative helicity
11 m²/s²
0-3 km storm-relative helicity
63 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

530 
WWUS46 KSGX 182131
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
131 PM PST WED JAN 18 2017

...MODERATE SNOW THURSDAY IN THE HIGHER MOUNTAINS...

...HEAVY SNOW FRIDAY IN THE MOUNTAINS...

.TWO STORMS WILL MOVE THROUGH SOUTHERN CALIFORNIA IN QUICK
SUCCESSION THURSDAY INTO SATURDAY. THE FIRST ONE WILL ARRIVE LATE
TONIGHT AND BRING MODERATE TO LOCALLY HEAVY SNOW TONIGHT AND
THURSDAY. THE SECOND STORM WILL ARRIVE FRIDAY AND BRING AREAS OF
HEAVY SNOW FRIDAY AND FRIDAY NIGHT. THE SNOW LEVEL WILL MOSTLY BE
BETWEEN 5000 AND 5500 FEET. SNOWFALL AMOUNTS WILL BE HIGHLY
VARIABLE...BUT SOME LOCATIONS COULD RECEIVE OVER 6 INCHES OF SNOW
THURSDAY AND OVER ONE FOOT OF SNOW FRIDAY. A THIRD STORM WILL
BRING RAIN SUNDAY...THEN TURN TO SNOW SUNDAY NIGHT THROUGH
MONDAY. STRONG GUSTY WINDS WILL OCCUR AT TIMES AS WELL ALONG WITH
DENSE FOG.

CAZ055-056-190600-
/O.UPG.KSGX.WW.Y.0001.170119T0600Z-170120T1200Z/
/O.NEW.KSGX.WS.W.0002.170119T0600Z-170121T1400Z/
/O.UPG.KSGX.WS.A.0001.170120T1200Z-170121T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRESTLINE...LAKE ARROWHEAD...
BIG BEAR CITY...BIG BEAR LAKE...RUNNING SPRINGS...WRIGHTWOOD...
IDYLLWILD-PINE COVE
131 PM PST WED JAN 18 2017

...WINTER STORM WARNING IN EFFECT FROM 10 PM THIS EVENING TO 6 AM
PST SATURDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO
6 AM PST SATURDAY. THE WINTER WEATHER ADVISORY IS NO LONGER IN
EFFECT. THE WINTER STORM WATCH IS NO LONGER IN EFFECT. 

* SNOW LEVELS...MOSTLY BETWEEN 5000 AND 5500 FEET...BUT LOCALLY
  LOWER ON THE NORTH SLOPES.

* TIMING...MODERATE SNOW TONIGHT AND THURSDAY WITH HEAVY SNOW 
  FRIDAY AND FRIDAY NIGHT. 

* SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 6000 FEET TONIGHT AND 
  THURSDAY WITH 8 TO 16 INCHES FRIDAY AND FRIDAY NIGHT. A FEW 
  INCHES COULD FALL AS LOW AS AROUND 5000 FEET. 

* WINDS...SOUTHWEST TO WEST WINDS 20 TO 35 MPH WITH LOCAL GUSTS 
  OVER 50 MPH THURSDAY. WINDS 25 TO 45 MPH WITH LOCAL GUSTS OVER 
  65 MPH FRIDAY AND FRIDAY NIGHT. 

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOWFALL...WINDS AND LOW VISIBILITY. 

* OUTLOOK...A WARMER STORM WILL BRING MORE RAIN THAN SNOW 
  SUNDAY...BUT WILL TURN TO SNOW SUNDAY NIGHT AND MONDAY. 


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.

&&

$$

12
7 follow-up statements
536 
WWUS46 KSGX 190503
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
903 PM PST WED JAN 18 2017

...MODERATE SNOW THURSDAY IN THE HIGHER MOUNTAINS...

...HEAVY SNOW FRIDAY IN THE MOUNTAINS...

.TWO STORMS WILL MOVE THROUGH SOUTHERN CALIFORNIA IN QUICK
SUCCESSION THURSDAY INTO SATURDAY. THE FIRST ONE WILL ARRIVE LATE
TONIGHT AND BRING MODERATE TO LOCALLY HEAVY SNOW TONIGHT AND
THURSDAY. THE SECOND STORM WILL ARRIVE FRIDAY AND BRING AREAS OF
HEAVY SNOW FRIDAY AND FRIDAY NIGHT. THE SNOW LEVEL WILL MOSTLY BE
BETWEEN 5000 AND 5500 FEET. SNOWFALL AMOUNTS WILL BE HIGHLY
VARIABLE...BUT SOME LOCATIONS COULD RECEIVE OVER 6 INCHES OF SNOW
THURSDAY AND OVER ONE FOOT OF SNOW FRIDAY. A THIRD STORM WILL
BRING RAIN SUNDAY...THEN TURN TO SNOW SUNDAY NIGHT THROUGH
MONDAY. STRONG GUSTY WINDS WILL OCCUR AT TIMES AS WELL ALONG WITH
DENSE FOG.

CAZ055-056-191400-
/O.CON.KSGX.WS.W.0002.170119T0600Z-170121T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRESTLINE...LAKE ARROWHEAD...
BIG BEAR CITY...BIG BEAR LAKE...RUNNING SPRINGS...WRIGHTWOOD...
IDYLLWILD-PINE COVE
903 PM PST WED JAN 18 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST
SATURDAY...

* SNOW LEVELS...MOSTLY BETWEEN 5000 AND 5500 FEET...BUT LOCALLY 
  LOWER ON THE NORTH SLOPES. 

* TIMING...MODERATE SNOW TONIGHT AND THURSDAY WITH HEAVY SNOW 
  FRIDAY AND FRIDAY NIGHT. 

* SNOW ACCUMULATIONS...4 TO 8 INCHES ABOVE 6000 FEET TONIGHT AND 
  THURSDAY WITH 8 TO 16 INCHES FRIDAY AND FRIDAY NIGHT. A FEW 
  INCHES COULD FALL AS LOW AS AROUND 5000 FEET. 

* WINDS...SOUTHWEST TO WEST WINDS 20 TO 35 MPH WITH LOCAL GUSTS 
  OVER 50 MPH THURSDAY. WINDS 25 TO 45 MPH WITH LOCAL GUSTS OVER 
  65 MPH FRIDAY AND FRIDAY NIGHT. 

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOWFALL...WINDS AND LOW VISIBILITY. 

* OUTLOOK...A WARMER STORM WILL BRING MORE RAIN THAN SNOW 
  SUNDAY...BUT WILL TURN TO SNOW SUNDAY NIGHT AND MONDAY. 

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.

&&

$$
GREGORIA
627 
WWUS46 KSGX 191128
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
328 AM PST THU JAN 19 2017

...MODERATE SNOW TODAY IN THE HIGHER MOUNTAINS...

...HEAVY SNOW FRIDAY IN THE MOUNTAINS...

.A WET STORM SYSTEM WILL BRING TWO SNOW STORMS TO THE MOUNTAINS
TODAY AND FRIDAY. MODERATE TO LOCALLY HEAVY SNOW IS EXPECTED
TODAY...FOLLOWED BY HEAVIER SNOW FRIDAY THROUGH FRIDAY NIGHT. THE
SNOW LEVEL WILL MOSTLY BE BETWEEN 5000 AND 5500 FEET. SNOWFALL
AMOUNTS WILL BE HIGHLY VARIABLE...BUT SOME LOCATIONS COULD RECEIVE
6 TO 12 INCHES OF SNOW TODAY AND 1 TO 2 FEET OF SNOW FRIDAY AND
FRIDAY NIGHT. A THIRD STORM WILL BRING RAIN SUNDAY...THEN TURN TO
SNOW SUNDAY NIGHT THROUGH MONDAY AND POSSIBLY LINGERING INTO
TUESDAY. STRONG GUSTY WINDS WILL OCCUR AT TIMES AS WELL ALONG
WITH DENSE FOG.

CAZ055-056-192200-
/O.CON.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRESTLINE...LAKE ARROWHEAD...
BIG BEAR CITY...BIG BEAR LAKE...RUNNING SPRINGS...WRIGHTWOOD...
IDYLLWILD-PINE COVE
328 AM PST THU JAN 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST SATURDAY...

* SNOW LEVELS...MOSTLY BETWEEN 5000 AND 5500 FEET...BUT LOCALLY 
  LOWER ON THE NORTH SLOPES. 

* TIMING...TODAY THROUGH FRIDAY NIGHT.

* SNOW ACCUMULATIONS...UP TO A FOOT TODAY. 1 TO 2 FEET FRIDAY AND
  FRIDAY NIGHT. UP TO 6 INCHES COULD FALL AS LOW AS 5000 FEET.

* WINDS...SOUTHWEST TO WEST WINDS 20 TO 35 MPH WITH LOCAL GUSTS
  OVER 50 MPH TODAY. WINDS 25 TO 45 MPH WITH LOCAL GUSTS OVER 65
  MPH FRIDAY AND FRIDAY NIGHT.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS
  DUE TO SNOW COVERED ROADS...WINDS AND LOW VISIBILITY.

* OUTLOOK...A WARMER STORM WILL BRING MORE RAIN THAN SNOW SUNDAY...
  BUT WILL TURN TO SNOW SUNDAY NIGHT AND LINGER INTO TUESDAY.

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.

&&

$$

MM
641 
WWUS46 KSGX 192246
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
246 PM PST THU JAN 19 2017

...HEAVY SNOW FRIDAY MORNING THROUGH LATE FRIDAY NIGHT IN THE
MOUNTAINS...

.ANOTHER STRONGER STORM WILL BRING HEAVY SNOW FRIDAY THROUGH
FRIDAY NIGHT. A THIRD STORM WILL BRING MAINLY RAIN SUNDAY EXCEPT
ON THE VERY HIGHEST PEAKS OF SAN BERNARDINO AND RIVERSIDE
COUNTIES...THEN SNOW LEVELS WILL LOWER SUNDAY NIGHT THROUGH MONDAY
POSSIBLY DOWN TO 4000 FEET. STRONG AND GUSTY WINDS WILL OCCUR AS
WELL...ESPECIALLY FRIDAY AND EARLY SATURDAY ALONG THE RIDGE TOPS
AND DESERT MOUNTAIN SLOPES...WITH WINDS POSSIBLY CAUSING
STRUCTURAL DAMAGE.

CAZ058-200700-
/O.EXB.KSGX.WS.W.0002.170120T1200Z-170121T1400Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...JULIAN...PINE VALLEY
246 PM PST THU JAN 19 2017

...WINTER STORM WARNING IN EFFECT FROM 4 AM FRIDAY TO 6 AM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 4 AM FRIDAY TO 6 AM PST
SATURDAY. 

* SNOW LEVELS...5000 FEET TONIGHT...RISING TO 6000 FEET FRIDAY
  AFTERNOON...AND THEN LOWERING AGAIN TO 5000 FEET FRIDAY EVENING. 

* TIMING...FRIDAY MORNING THROUGH LATE FRIDAY NIGHT.

* SNOW ACCUMULATIONS...ABOVE 6000 FEET...12 TO 18 INCHES. 5500
  FEET TO 6000 FEET...6 TO 12 INCHES. 5000 TO 5500 FEET...3 TO 7
  INCHES.

* WINDS...WEST 25 TO 45 MPH WITH GUSTS TO 60 MPH...AND LOCAL
  GUSTS OVER 70 MPH.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY.
  DANGEROUS CROSS WINDS FOR HIGH PROFILE VEHICLES. WINDS MAY CAUSE
  STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND POWER LINES. 

* OUTLOOK...A WARMER STORM WILL BRING MAINLY RAIN ON SUNDAY...THEN
  COOLING ON MONDAY WILL BRING SOME SNOW TO THE SAN DIEGO COUNTY
  MOUNTAINS ABOVE 4000 FOOT ELEVATION.

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.

&&

$$

CAZ055-056-200700-
/O.CON.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRESTLINE...LAKE ARROWHEAD...
BIG BEAR CITY...BIG BEAR LAKE...RUNNING SPRINGS...WRIGHTWOOD...
IDYLLWILD-PINE COVE
246 PM PST THU JAN 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST
SATURDAY...

* SNOW LEVELS...5500 TO 6000 FEET TODAY...LOWERING BRIEFLY TO
  AROUND 5000 FEET TONIGHT...THEN RISING TO 5500 TO 6000 FEET BY
  MID FRIDAY MORNING. 

* TIMING...TODAY THROUGH FRIDAY NIGHT.

* SNOW ACCUMULATIONS...ABOVE 6000 FEET...AROUND 18 INCHES TO 2
  FEET WITH LOCAL 3 FEET POSSIBLE. 5500 TO 6000 FEET...1 TO 2
  FEET. 5000 TO 5500 FEET...5 TO 10 INCHES. 4500 TO 5000
  FEET...TRACE TO 3 INCHES. 

* WINDS...SOUTHWEST TO WEST 20 TO 35 MPH WITH LOCAL GUSTS OVER 50
  MPH TODAY. WINDS 25 TO 40 MPH WITH GUSTS TO 60 MPH AND LOCAL
  GUSTS OVER 65 MPH FRIDAY AND FRIDAY NIGHT.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY.
  DANGEROUS CROSS WINDS EXPECTED FOR HIGH PROFILE VEHICLES. WINDS
  MAY CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND POWER
  LINES.

* OUTLOOK...A WARMER STORM WILL BRING MORE RAIN THAN SNOW
  SUNDAY...BUT THE SNOW LEVEL WILL LOWER ON MONDAY DOWN TO 4000
  FEET BRINGING MORE HEAVY SNOW. 

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.

&&

$$

HARRISON
330 
WWUS46 KSGX 200523
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
923 PM PST THU JAN 19 2017

...HEAVY SNOW FRIDAY MORNING THROUGH LATE FRIDAY NIGHT IN THE
MOUNTAINS...

.ANOTHER STRONGER STORM WILL BRING HEAVY SNOW FRIDAY THROUGH
FRIDAY NIGHT. A THIRD STORM WILL BRING MAINLY RAIN SUNDAY EXCEPT
ON THE VERY HIGHEST PEAKS OF SAN BERNARDINO AND RIVERSIDE
COUNTIES...THEN SNOW LEVELS WILL LOWER SUNDAY NIGHT THROUGH
MONDAY POSSIBLY DOWN TO 4000 FEET. STRONG AND GUSTY WINDS WILL
OCCUR AS WELL...ESPECIALLY FRIDAY AND EARLY SATURDAY ALONG THE
RIDGE TOPS AND DESERT MOUNTAIN SLOPES...WITH WINDS POSSIBLY
CAUSING STRUCTURAL DAMAGE.

CAZ055-056-201400-
/O.CON.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRESTLINE...LAKE ARROWHEAD...
BIG BEAR CITY...BIG BEAR LAKE...RUNNING SPRINGS...WRIGHTWOOD...
IDYLLWILD-PINE COVE
923 PM PST THU JAN 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST
SATURDAY...

* SNOW LEVELS...AROUND 5000 FEET TONIGHT...THEN RISING TO 5500 TO
  6000 FEET BY MID FRIDAY MORNING.

* TIMING...TONIGHT THROUGH FRIDAY NIGHT.

* SNOW ACCUMULATIONS...ABOVE 6000 FEET...AROUND 18 INCHES TO 2 
  FEET WITH LOCAL 3 FEET POSSIBLE. 5500 TO 6000 FEET...1 TO 2 
  FEET. 5000 TO 5500 FEET...5 TO 10 INCHES. 4500 TO 5000 FEET... 
  TRACE TO 3 INCHES. 

* WINDS...SOUTHWEST TO WEST 20 TO 35 MPH WITH LOCAL GUSTS OVER 50
  MPH TONIGHT. WINDS 25 TO 40 MPH WITH GUSTS TO 60 MPH AND LOCAL
  GUSTS OVER 65 MPH FRIDAY AND FRIDAY NIGHT.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS EXPECTED FOR HIGH PROFILE VEHICLES. 
  WINDS MAY CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND 
  POWER LINES. 

* OUTLOOK...A WARMER STORM WILL BRING MORE RAIN THAN SNOW 
  SUNDAY...BUT THE SNOW LEVEL WILL LOWER ON MONDAY DOWN TO 4000 
  FEET BRINGING MORE HEAVY SNOW. 

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.

&&

$$

CAZ058-201400-
/O.CON.KSGX.WS.W.0002.170120T1200Z-170121T1400Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...JULIAN...PINE VALLEY
923 PM PST THU JAN 19 2017

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 AM FRIDAY TO
6 AM PST SATURDAY...

* SNOW LEVELS...5000 FEET TONIGHT...RISING TO 6000 FEET FRIDAY 
  AFTERNOON...AND THEN LOWERING AGAIN TO 5000 FEET FRIDAY 
  EVENING. 

* TIMING...FRIDAY MORNING THROUGH LATE FRIDAY NIGHT.

* SNOW ACCUMULATIONS...ABOVE 6000 FEET...12 TO 18 INCHES. 5500 
  FEET TO 6000 FEET...6 TO 12 INCHES. 5000 TO 5500 FEET...3 TO 7 
  INCHES. 

* WINDS...WEST 25 TO 45 MPH WITH GUSTS TO 60 MPH...AND LOCAL 
  GUSTS OVER 70 MPH. 

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS FOR HIGH PROFILE VEHICLES. WINDS MAY 
  CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND POWER LINES. 

* OUTLOOK...A WARMER STORM WILL BRING MAINLY RAIN ON SUNDAY... 
  THEN COOLING ON MONDAY WILL BRING SOME SNOW TO THE SAN DIEGO 
  COUNTY MOUNTAINS ABOVE 4000 FOOT ELEVATION. 

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.

&&

$$
GREGORIA
367 
WWUS46 KSGX 201243
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
443 AM PST FRI JAN 20 2017

...HEAVY SNOW TODAY AND TONIGHT IN THE MOUNTAINS...

.A POWERFUL STORM WILL BRING HEAVY SNOW TO THE MOUNTAINS TODAY
AND TONIGHT. STRONG AND GUSTY WINDS WILL OCCUR AS WELL...ESPECIALLY
TODAY INTO EARLY SATURDAY ALONG THE RIDGE TOPS AND DESERT
MOUNTAIN SLOPES...WITH WINDS POSSIBLY CAUSING STRUCTURAL DAMAGE.
THE NEXT STORM WILL BRING MAINLY RAIN SUNDAY EXCEPT ON THE VERY
HIGHEST PEAKS OF SAN BERNARDINO AND RIVERSIDE COUNTIES...THEN SNOW
LEVELS WILL LOWER SUNDAY NIGHT THROUGH MONDAY DOWN TO 4000 FEET.
THIS STORM WILL ALSO BRING STRONG WINDS SUNDAY INTO MONDAY.

CAZ055-056-202300-
/O.CON.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRESTLINE...LAKE ARROWHEAD...
BIG BEAR CITY...BIG BEAR LAKE...RUNNING SPRINGS...WRIGHTWOOD...
IDYLLWILD-PINE COVE
443 AM PST FRI JAN 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST
SATURDAY...

* SNOW LEVELS...AROUND 5000 FEET.

* TIMING...TODAY THROUGH TONIGHT.

* SNOW ACCUMULATIONS...ABOVE 6000 FEET...AROUND 18 INCHES TO 2
  FEET WITH LOCAL 3 FEET POSSIBLE. 5500 TO 6000 FEET...1 TO 2
  FEET. 5000 TO 5500 FEET...5 TO 10 INCHES. 

* WINDS...SOUTHWEST 25 TO 40 MPH WITH GUSTS TO 60 MPH AND LOCAL
  GUSTS OVER 65 MPH.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS EXPECTED FOR HIGH PROFILE VEHICLES. 
  WINDS MAY CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND 
  POWER LINES. 

* OUTLOOK...A WARMER STORM WILL BRING MORE RAIN THAN SNOW 
  SUNDAY...BUT THE SNOW LEVEL WILL LOWER ON MONDAY DOWN TO 4000 
  FEET BRINGING MORE HEAVY SNOW. 

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.

&&

$$

CAZ058-202300-
/O.CON.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...JULIAN...PINE VALLEY
443 AM PST FRI JAN 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST
SATURDAY...

* SNOW LEVELS...AROUND 5000 FEET.

* TIMING...TODAY AND TONIGHT.

* SNOW ACCUMULATIONS...ABOVE 6000 FEET...12 TO 18 INCHES. 5500 
  FEET TO 6000 FEET...6 TO 12 INCHES. 5000 TO 5500 FEET...3 TO 7 
  INCHES. 

* WINDS...WEST 25 TO 45 MPH WITH GUSTS TO 60 MPH...AND LOCAL 
  GUSTS OVER 70 MPH. 

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS FOR HIGH PROFILE VEHICLES. WINDS MAY 
  CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND POWER LINES. 

* OUTLOOK...A WARMER STORM WILL BRING MAINLY RAIN ON SUNDAY... 
  THEN COOLING ON MONDAY WILL BRING SOME SNOW TO THE SAN DIEGO 
  COUNTY MOUNTAINS ABOVE 4000 FOOT ELEVATION. 

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.

&&

$$

MM
566 
WWUS46 KSGX 202209
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
209 PM PST FRI JAN 20 2017

...HEAVY SNOW TODAY AND TONIGHT IN THE MOUNTAINS...

.A POWERFUL STORM WILL BRING HEAVY SNOW TO THE MOUNTAINS THIS
AFTENROON AND TONIGHT. STRONG AND GUSTY WINDS WILL OCCUR AS
WELL...ESPECIALLY ALONG THE RIDGE TOPS AND DESERT MOUNTAIN
SLOPES...WITH WINDS POSSIBLY CAUSING STRUCTURAL DAMAGE. THE NEXT
STORM WILL BRING MAINLY RAIN SUNDAY EXCEPT ON THE HIGHER PEAKS OF
SAN BERNARDINO AND RIVERSIDE COUNTIES...THEN SNOW LEVELS WILL
LOWER SUNDAY NIGHT THROUGH MONDAY DOWN TO 4000 FEET. THIS STORM
WILL ALSO BRING STRONG WINDS SUNDAY INTO MONDAY.

CAZ055-056-210615-
/O.CON.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRESTLINE...LAKE ARROWHEAD...
BIG BEAR CITY...BIG BEAR LAKE...RUNNING SPRINGS...WRIGHTWOOD...
IDYLLWILD-PINE COVE
209 PM PST FRI JAN 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST
SATURDAY...

* SNOW LEVELS...AROUND 5000 FEET.

* TIMING...THROUGH TONIGHT.

* ADDITIONAL SNOW ACCUMULATIONS...ABOVE 6000 FEET...10 TO 20
  INCHES. 5000 TO 6000 FEET...5 TO 10 INCHES.

* WINDS...SOUTHWEST 25 TO 40 MPH WITH GUSTS TO 60 MPH AND LOCAL
  GUSTS OVER 70 MPH.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS EXPECTED FOR HIGH PROFILE VEHICLES. 
  WINDS MAY CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND 
  POWER LINES. 

* OUTLOOK...A WARMER STORM WILL BRING MORE RAIN THAN SNOW SUNDAY
  WITH THE SNOW LEVEL AROUND 7000 FEET...BUT THE SNOW LEVEL WILL
  LOWER ON MONDAY DOWN TO 4000 FEET BRINGING MORE HEAVY SNOW.

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.

&&

$$

CAZ058-210615-
/O.CON.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...JULIAN...PINE VALLEY
209 PM PST FRI JAN 20 2017

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM PST
SATURDAY...

* SNOW LEVELS...AROUND 5000 FEET.

* TIMING...TODAY AND TONIGHT.

* SNOW ACCUMULATIONS...ABOVE 6000 FEET...10 TO 15 INCHES. 5000 TO
  6000 FEET...4 TO 8 INCHES.

* WINDS...WEST 25 TO 45 MPH WITH GUSTS TO 60 MPH...AND LOCAL 
  GUSTS OVER 70 MPH. 

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS FOR HIGH PROFILE VEHICLES. WINDS MAY 
  CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND POWER LINES. 

* OUTLOOK...A WARMER STORM WILL BRING MAINLY RAIN ON SUNDAY... 
  THEN COOLING ON MONDAY WILL BRING SOME SNOW TO THE SAN DIEGO 
  COUNTY MOUNTAINS ABOVE 4000 FOOT ELEVATION. 

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.

&&

$$

MAXWELL
237 
WWUS46 KSGX 211302
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
502 AM PST SAT JAN 21 2017

...STRONG WINDS AND HEAVY SNOWFALL FOR LATE SUNDAY THROUGH MONDAY...

.THE THIRD AND MOST POWERFUL IN THE SEQUENCE OF STORMS TO IMPACT
SOUTHERN CALIFORNIA WILL BRING PERIODS OF STRONG WINDS AND HEAVY
SNOWFALL FOR LATE SUNDAY THROUGH MONDAY. 

CAZ055-212230-
/O.CAN.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
/O.NEW.KSGX.WS.W.0003.170122T2000Z-170124T0200Z/
SAN BERNARDINO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...CRESTLINE...LAKE ARROWHEAD...
BIG BEAR CITY...BIG BEAR LAKE...RUNNING SPRINGS...WRIGHTWOOD
502 AM PST SAT JAN 21 2017

...WINTER STORM WARNING IN EFFECT FROM NOON SUNDAY TO 6 PM PST
MONDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM NOON SUNDAY TO 6 PM PST
MONDAY. 

* SNOW LEVELS...NEAR 5000 FEET EARLY SUNDAY...RISING TO AROUND
  6500 FEET EARLY SUNDAY EVENING...THEN FALLING TO 4500 TO 5000
  FEET LATE SUNDAY NIGHT...AND AROUND 3500 FEET MONDAY.

* WINDS...AREAS OF SOUTH TO SOUTHWEST WINDS STRENGTHENING TO 25 TO
  35 MPH WITH GUSTS TO 65 MPH...BECOMING SOUTHWEST TO WEST LATE
  SUNDAY NIGHT AND MONDAY. DAMAGING GUSTS TO 90 MPH NEAR MOUNTAIN
  RIDGE TOPS AND ALONG DESERT SLOPES FOR SUNDAY AFTERNOON AND
  EVENING.

* SNOW...DEVELOPING SUNDAY...BECOMING HEAVY AT TIMES FOR LATE
  SUNDAY AFTERNOON AND EVENING WITH SNOW SHOWERS CONTINUING
  THROUGH MONDAY. 

* SNOW ACCUMULATIONS...4 INCHES OF MORE ABOVE 4000 FEET...WITH 1
  TO 2 FEET ABOVE 6000 FEET...AND MORE THAN 2 FEET ABOVE 7000
  FEET.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS EXPECTED FOR HIGH PROFILE VEHICLES. 
  WINDS MAY CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND 
  POWER LINES. 

* OUTLOOK...SNOW SHOWERS WILL CONTINUE AT TIMES FOR MONDAY NIGHT
  AND TUESDAY.

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.

&&

$$

CAZ056-212230-
/O.CAN.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
/O.NEW.KSGX.WS.W.0003.170123T0000Z-170124T0200Z/
RIVERSIDE COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...IDYLLWILD-PINE COVE
502 AM PST SAT JAN 21 2017

...WINTER STORM WARNING IN EFFECT FROM 4 PM SUNDAY TO 6 PM PST
MONDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 4 PM SUNDAY TO 6 PM PST
MONDAY. 

* SNOW LEVELS...NEAR 5500 FEET EARLY SUNDAY...RISING TO AROUND
  7000 FEET EARLY SUNDAY EVENING...THEN FALLING TO 5000 FEET LATE
  SUNDAY NIGHT...AND AROUND 3500 FEET MONDAY.

* WINDS...AREAS OF SOUTHWEST WINDS STRENGTHENING TO 25 TO 35 MPH
  WITH GUSTS TO 65 MPH...BECOMING SOUTHWEST TO WEST LATE SUNDAY
  NIGHT AND MONDAY. DAMAGING GUSTS TO 80 MPH NEAR MOUNTAIN RIDGE
  TOPS AND ALONG DESERT SLOPES FOR SUNDAY EVENING.

* SNOW...DEVELOPING SUNDAY...BECOMING HEAVY AT TIMES FOR LATE
  SUNDAY AFTERNOON AND EVENING WITH SNOW SHOWERS CONTINUING
  THROUGH MONDAY. 

* SNOW ACCUMULATIONS...4 INCHES OF MORE ABOVE 4000 FEET...WITH 1
  TO 2 FEET ABOVE 6000 FEET...AND MORE THAN 2 FEET ABOVE 7000
  FEET.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS EXPECTED FOR HIGH PROFILE VEHICLES. 
  WINDS MAY CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND 
  POWER LINES. 

* OUTLOOK...SNOW SHOWERS WILL CONTINUE AT TIMES FOR MONDAY NIGHT
  AND TUESDAY.

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.

&&

$$

CAZ058-212230-
/O.CAN.KSGX.WS.W.0002.000000T0000Z-170121T1400Z/
/O.NEW.KSGX.WS.W.0003.170123T0000Z-170124T0200Z/
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...JULIAN...PINE VALLEY
502 AM PST SAT JAN 21 2017

...WINTER STORM WARNING IN EFFECT FROM 4 PM SUNDAY TO 6 PM PST
MONDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING...WHICH IS IN EFFECT FROM 4 PM SUNDAY TO 6 PM PST
MONDAY. 

* SNOW LEVELS...NEAR 5500 FEET EARLY SUNDAY...RISING TO AROUND
  7000 FEET EARLY SUNDAY EVENING...THEN FALLING TO 5000 FEET LATE
  SUNDAY NIGHT...AND AROUND 3500 FEET MONDAY.

* WINDS...AREAS OF SOUTHWEST WINDS STRENGTHENING TO 25 TO 35 MPH
  WITH GUSTS TO 65 MPH...BECOMING SOUTHWEST TO WEST LATE SUNDAY
  NIGHT AND MONDAY. DAMAGING GUSTS TO 70 MPH NEAR MOUNTAIN RIDGE
  TOPS AND ALONG DESERT SLOPES FOR SUNDAY NIGHT.

* SNOW...DEVELOPING SUNDAY...BECOMING HEAVY AT TIMES FOR LATE
  SUNDAY AFTERNOON AND EVENING WITH SNOW SHOWERS CONTINUING
  THROUGH MONDAY. 

* SNOW ACCUMULATIONS...3 TO 6 INCHES FROM 4000 TO 4500 FEET...WITH
  8 TO 14 INCHES ABOVE 5000 FEET.

* VISIBILITY...NEAR ZERO AT TIMES IN SNOW...BLOWING SNOW AND FOG.

* IMPACTS...TRAVEL WILL BE DANGEROUS AT TIMES OVER THE MOUNTAINS 
  DUE TO SNOW COVERED ROADS...STRONG WINDS AND LOW VISIBILITY. 
  DANGEROUS CROSS WINDS EXPECTED FOR HIGH PROFILE VEHICLES. 
  WINDS MAY CAUSE STRUCTURAL DAMAGE AND KNOCK DOWN TREES AND 
  POWER LINES. 

* OUTLOOK...SNOW SHOWERS WILL CONTINUE AT TIMES FOR MONDAY NIGHT
  AND TUESDAY.

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.

&&

$$

17

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 17, 9:52 PM PSTWinter Storm WatchSGXRiverside, San Bernardino16 hr
Jan 17, 9:52 PM PSTWinter Weather AdvisorySGXRiverside, San Bernardino16 hr
Jan 17, 9:58 PM PSTHigh Wind WatchSGXRiverside, San Bernardino, San Diego41 hr
Jan 17, 9:58 PM PSTWind AdvisorySGXRiverside, San Bernardino, San Diego4 days
Jan 18, 5:00 AM PSTBeach Hazards StatementSGXOrange, San Diego9 hr
Jan 18, 5:29 AM PSTGale WatchSGX21 hr
Jan 18, 5:29 AM PSTSmall Craft AdvisorySGX53 hr
Jan 18, 1:56 PM PSTHigh Surf WarningSGXOrange, San Diego5 days

Nearby

Winter Storm Warnings in California, 2017Every winter storm warning in 2017

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.