Alert archive / California / Winter Storm Warnings in 2015

Winter Storm Warning 2, NWS San Diego, CA

February 27, 2015Riverside County, San Bernardino County, San Diego County, California

NWS San Diego, CA issued this winter storm warning at Feb 27, 2015, 1:05 PM PST for Riverside County, San Bernardino County, San Diego County, California. It took effect at Feb 28, 2015, 4:00 PM PST. It was in force for 48 hr. 7 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
Feb 27, 2015, 1:05 PM PST (21:05 UTC)
In effect from
Feb 28, 2015, 4:00 PM PST
Expired
Mar 2, 2015, 4:00 PM PST
In force
48 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 21:02 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 1, 2:24 PM PSTHEAVY SNOW 48 Sw Big Bear Lake, CABEN BRISSEY REPORTED 4 INCHES OF SNOW AS OF 11AM IN THE BIG BEAR AREA, SNOWING MODERATE TO HEAVY AT TIMES WITH RATES OF 1-2 PER HOUR. MULTIPLE TRAFFIC COLLISIONS THROUGH THE MOUNTAIN TOP DISTRICT, ESPECIALLY ALONG HIGHWAY 38 BETWEEN ANGELUS OAKS AND HATCHERY D
Mar 1, 8:00 PM PSTSNOW 52 Ese Big Bear City, CA
Mar 1, 8:00 PM PSTHEAVY SNOW 81 Ene Idyllwild-Pine Cov, CAMEASURED IN PINE COVE. HEAVY SNOW DURATION 12 HOURS. OBSERVER LOCATION IDYLLWILD.
Mar 1, 8:03 PM PSTSNOW 8Pine Cove, CA
Mar 1, 8:06 PM PSTSNOW 7Palomar Mountain, CA
Mar 2, 7:00 AM PSTHEAVY SNOW 9.51 Nnw Idyllwild-Pine Cov, CAHEAVY SNOW DURATION 24 HOURS. OBSERVER LOCATION PINE COVE.
Mar 2, 7:41 AM PSTSNOW 9.5Idyllwild-Pine Cove, CASTORM TOTAL AS OF 7 AM.

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, 9.1 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 2015-02-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 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 2015-02-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 73 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
2 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
588 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
73 m²/s²
0-3 km storm-relative helicity
99 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.

898 
WWUS46 KSGX 272105
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
105 PM PST FRI FEB 27 2015

...SNOW SHOWERS WITH HEAVY SNOWFALL AT TIMES SATURDAY THROUGH
MONDAY IN THE HIGHER MOUNTAINS...

.A STORM FROM THE NORTH WILL BRING LOWER SNOW LEVELS AND PERIODS
OF SNOW SHOWERS FOR TONIGHT THROUGH EARLY NEXT WEEK WITH HEAVIER
SNOWFALL AT TIMES SATURDAY THROUGH MONDAY.

CAZ055-056-058-280600-
/O.UPG.KSGX.WS.A.0001.150301T0000Z-150303T0000Z/
/O.NEW.KSGX.WS.W.0002.150301T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
105 PM PST FRI FEB 27 2015

...WINTER STORM WARNING ABOVE 5000 FEET ELEVATION IN EFFECT FROM
4 PM SATURDAY TO 4 PM PST MONDAY...

THE NATIONAL WEATHER SERVICE IN SAN DIEGO HAS ISSUED A WINTER
STORM WARNING FOR SNOW AND STRONG WINDS...WHICH IS IN EFFECT FROM
4 PM SATURDAY TO 4 PM PST MONDAY. THE WINTER STORM WATCH IS NO
LONGER IN EFFECT.

* SNOW LEVELS...INITIALLY AROUND 7000 FEET...FALLING TO 5000 FEET
  LATE SATURDAY...AND AROUND 4500 FEET FOR SUNDAY AND MONDAY WITH
  LOCALLY LOWER SNOW LEVELS.

* TIMING...PERIODS OF HEAVIER SNOWFALL ARE POSSIBLE SATURDAY
  NIGHT INTO SUNDAY...AND POSSIBLY AGAIN ON MONDAY.

* SNOW ACCUMULATIONS...LESS THAN 4 INCHES FOR 4000 TO 5000
  FEET...4 TO 8 INCHES FOR 5000 TO 6000 FT...8 TO 12 INCHES FOR
  6000 TO 7000 FT...WITH LOCAL AMOUNTS EXCEEDING 12 INCHES ABOVE
  7000 FEET.

* WINDS...AREAS OF SOUTHWEST TO WEST WINDS 20 TO 30 MPH WITH GUSTS
  TO 50 MPH. WINDS WILL ALSO BE THIS STRONG FOR SOME MOUNTAIN
  AREAS BELOW 5000 FEET ELEVATION.

* VISIBILITY...REDUCED BELOW ONE QUARTER AT TIMES IN SNOW...
  BLOWING SNOW...AND/OR FOG.

* IMPACTS...RESIDENTS AND TRAVELERS INTO HIGHER ELEVATIONS IN THE
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER
  CONDITIONS AND POSSIBLE ROAD CLOSURES. IF POSSIBLE...CARRY
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING.

* OUTLOOK...LINGERING SHOWERS MAY CONTINUE TUESDAY WITH DRY
  WEATHER RETURNING WEDNESDAY.

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
10 follow-up statements
997 
WWUS46 KSGX 280540
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
940 PM PST FRI FEB 27 2015

...SNOW SHOWERS WITH HEAVY SNOWFALL AT TIMES SATURDAY THROUGH
MONDAY IN THE HIGHER MOUNTAINS...

.A COLD AND SLOW-MOVING UPPER LEVEL TROUGH WILL BRING PERIODS OF
SNOW TONIGHT THROUGH MONDAY. SNOW LEVELS WILL START OUT AROUND
7000 FEET...THEN LOWER TO 4500 FEET SUNDAY NIGHT AND MONDAY WHEN
THE COLDEST AIR ARRIVES.

CAZ055-056-058-281400-
/O.CON.KSGX.WS.W.0002.150301T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
940 PM PST FRI FEB 27 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM SATURDAY TO
4 PM PST MONDAY...

* SNOW LEVELS...INITIALLY AROUND 7000 FEET...FALLING TO 5000 FEET
  LATE SATURDAY...AND AROUND 4500 FEET FOR SUNDAY AND MONDAY WITH
  LOCALLY LOWER SNOW LEVELS.

* TIMING...PERIODS OF HEAVIER SNOWFALL SATURDAY NIGHT INTO
  SUNDAY...AND AGAIN ON MONDAY.

* SNOW ACCUMULATIONS...LESS THAN 4 INCHES FOR 4000 TO 5000 FEET...4
  TO 8 INCHES FOR 5000 TO 6000 FT...8 TO 12 INCHES FOR 6000 TO
  7000 FT...WITH LOCAL AMOUNTS EXCEEDING 12 INCHES ABOVE 7000
  FEET.

* WINDS...SOUTHWEST TO WEST WINDS 20 TO 30 MPH WITH GUSTS TO 50
  MPH. WINDS WILL ALSO BE THIS STRONG FOR SOME MOUNTAIN AREAS
  BELOW 5000 FEET ELEVATION.

* VISIBILITY...REDUCED BELOW ONE QUARTER AT TIMES IN SNOW...
  BLOWING SNOW...AND/OR FOG.

* IMPACTS...RESIDENTS AND TRAVELERS INTO HIGHER ELEVATIONS IN THE
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER
  CONDITIONS AND POSSIBLE ROAD CLOSURES. IF POSSIBLE...CARRY
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING.

* OUTLOOK...LINGERING SHOWERS MAY CONTINUE TUESDAY WITH DRY
  WEATHER RETURNING WEDNESDAY.

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
729 
WWUS46 KSGX 281203
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
403 AM PST SAT FEB 28 2015

...PERIODS OF SNOW SHOWERS WITH LOCALLY HEAVY SNOWFALL FOR THE
MOUNTAINS ABOVE 5000 FEET FOR TONIGHT INTO MONDAY...

.A COLD LOW PRESSURE SYSTEM FROM THE NORTH WILL BRING PERIODS OF
SNOW SHOWERS INTO EARLY TUESDAY WITH LOCALLY HEAVY SNOWFALL
POSSIBLE. SNOW LEVELS WILL LOWER TO AROUND 5500 FEET TODAY AND
4500 TO 5000 FEET FOR SUNDAY THROUGH EARLY TUESDAY.

CAZ055-056-058-282230-
/O.CON.KSGX.WS.W.0002.150301T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
403 AM PST SAT FEB 28 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 PM PST MONDAY...

* SNOW LEVELS...FALLING TO 5500 FEET TODAY...AND 4500 TO 5000 FEET
  FOR SUNDAY AND MONDAY WITH LOCALLY LOWER SNOW LEVELS.

* TIMING...PERIODS OF HEAVIER SNOWFALL ARE POSSIBLE FOR TONIGHT
  INTO EARLY SUNDAY...AND AGAIN LATE SUNDAY NIGHT INTO MONDAY.

* SNOW ACCUMULATIONS...LESS THAN 4 INCHES FOR 4000 TO 5000 FEET...
  4 TO 8 INCHES FOR 5000 TO 6000 FT...8 TO 12 INCHES FOR 6000 TO
  7000 FT...WITH LOCAL AMOUNTS EXCEEDING 12 INCHES ABOVE 7000
  FEET.

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

* VISIBILITY...REDUCED BELOW ONE QUARTER AT TIMES IN SNOW...
  BLOWING SNOW...AND FOG.

* IMPACTS...RESIDENTS AND TRAVELERS INTO HIGHER ELEVATIONS IN THE
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER
  CONDITIONS AND POSSIBLE ROAD CLOSURES. IF POSSIBLE...CARRY
  CHAINS AND TAKE EXTRA FOOD AND CLOTHING.

* OUTLOOK...LINGERING SHOWERS MAY CONTINUE TUESDAY WITH DRY  
WEATHER RETURNING WEDNESDAY.

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 A DETAILED MAP OF THE HAZARD:
WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=SGX

17
516 
WWUS46 KSGX 281208
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
408 AM PST SAT FEB 28 2015

...PERIODS OF SNOW SHOWERS WITH LOCALLY HEAVY SNOWFALL FOR THE
MOUNTAINS ABOVE 5000 FEET FOR TONIGHT INTO MONDAY...

.A COLD LOW PRESSURE SYSTEM FROM THE NORTH WILL BRING PERIODS OF
SNOW SHOWERS INTO EARLY TUESDAY WITH LOCALLY HEAVY SNOWFALL
POSSIBLE. SNOW LEVELS WILL LOWER TO AROUND 5500 FEET TODAY AND
4500 TO 5000 FEET FOR SUNDAY THROUGH EARLY TUESDAY.

CAZ055-056-058-282230-
/O.CON.KSGX.WS.W.0002.150301T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
408 AM PST SAT FEB 28 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 PM PST MONDAY ABOVE 5000 FEET...

* SNOW LEVELS...FALLING TO 5500 FEET TODAY...AND 4500 TO
5000 FEET   FOR SUNDAY AND MONDAY WITH LOCALLY LOWER SNOW LEVELS.

* TIMING...PERIODS OF HEAVIER SNOWFALL ARE POSSIBLE FOR TONIGHT  
INTO EARLY SUNDAY...AND AGAIN LATE SUNDAY NIGHT INTO MONDAY.

* SNOW ACCUMULATIONS...LESS THAN 4 INCHES FOR 4000 TO 5000 FEET...
  4 TO 8 INCHES FOR 5000 TO 6000 FT...8 TO 12 INCHES FOR 6000 TO
  7000 FT...WITH LOCAL AMOUNTS EXCEEDING 12 INCHES ABOVE 7000  
  FEET.

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

* VISIBILITY...REDUCED BELOW ONE QUARTER AT TIMES IN SNOW...  
  BLOWING SNOW...AND FOG.

* IMPACTS...RESIDENTS AND TRAVELERS INTO HIGHER ELEVATIONS IN THE
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER  
  CONDITIONS AND POSSIBLE ROAD CLOSURES. 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.

&&

$$

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 A DETAILED MAP OF THE HAZARD:
WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=SGX

17
212 
WWUS46 KSGX 282102
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
102 PM PST SAT FEB 28 2015

...PERIODS OF SNOW SHOWERS WITH LOCALLY HEAVY SNOWFALL FOR THE
MOUNTAINS ABOVE 5000 FEET THROUGH MONDAY...

.A COLD LOW PRESSURE SYSTEM FROM THE NORTH WILL BRING PERIODS OF
SNOW SHOWERS INTO EARLY TUESDAY WITH LOCALLY HEAVY SNOWFALL
POSSIBLE. SNOW LEVELS WILL LOWER TO BETWEEN 4500 TO 5000 FEET BY
SUNDAY NIGHT.

CAZ055-056-058-010530-
/O.CON.KSGX.WS.W.0002.150301T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
102 PM PST SAT FEB 28 2015

...WINTER STORM WARNING REMAINS IN EFFECT FROM 4 PM THIS
AFTERNOON TO 4 PM PST MONDAY...

* SNOW LEVELS...FALLING TO 5000 FEET TONIGHT AND SUNDAY...THEN TO
  AROUND 4500 FEET MONDAY WITH LOCALLY LOWER SNOW LEVELS POSSIBLE
  IN THE HEAVIER CONVECTIVE SHOWERS.

* TIMING...OCCASIONAL MODERATE SNOW SHOWERS TONIGHT WITH PERIODS
  OF HEAVIER SNOWFALL POSSIBLE SUNDAY INTO MONDAY.

* TOTAL SNOW ACCUMULATIONS THROUGH MONDAY NIGHT...LESS THAN 4
  INCHES FOR 4000 TO 5000 FEET...4 TO 8 INCHES FOR 5000 TO 6000
  FT...8 TO 12 INCHES FOR 6000 TO 7000 FT. TOTAL AMOUNTS MAY
  EXCEED 12 INCHES ABOVE 7000 FEET.

* WINDS...AREAS OF SOUTHWEST TO WEST WINDS 15 TO 25 MPH WITH GUSTS
  GUSTS TO 30 MPH THROUGH SUNDAY MORNING...THEN DECREASING.

* VISIBILITY...REDUCED BELOW ONE-QUARTER MILE AT TIMES IN SNOW
  AND FOG.

* IMPACTS...RESIDENTS AND TRAVELERS INTO HIGHER ELEVATIONS IN THE
  MOUNTAINS SHOULD BE PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS
  AND POSSIBLE ROAD CLOSURES. 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.

&&

$$

JAD
062 
WWUS46 KSGX 010533
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
933 PM PST SAT FEB 28 2015

...SNOW SHOWERS WITH LOCALLY HEAVY SNOWFALL FOR THE MOUNTAINS
ABOVE 5000 FEET THROUGH MONDAY...

.A COLD LOW PRESSURE SYSTEM FROM THE NORTH WILL BRING PERIODS OF
SNOW INTO EARLY TUESDAY WITH LOCALLY HEAVY SNOWFALL POSSIBLE.
SNOW LEVELS WILL LOWER TO BETWEEN 4500 TO 5000 FEET BY SUNDAY
NIGHT.

CAZ055-056-058-011400-
/O.CON.KSGX.WS.W.0002.000000T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
933 PM PST SAT FEB 28 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW LEVELS...FALLING TO 5000 FEET TONIGHT AND SUNDAY...THEN TO
  AROUND 4500 FEET MONDAY WITH LOCALLY LOWER SNOW LEVELS POSSIBLE
  IN THE HEAVIER CONVECTIVE SHOWERS.

* TIMING...OCCASIONAL MODERATE SNOW SHOWERS TONIGHT WITH PERIODS
  OF HEAVIER SNOWFALL POSSIBLE SUNDAY INTO MONDAY.

* TOTAL SNOW ACCUMULATIONS THROUGH MONDAY NIGHT...1 TO 4 INCHES FOR
  4000 TO 5000 FEET...4 TO 8 INCHES FOR 5000 TO 6000 FT...8 TO 12
  INCHES FOR 6000 TO 7000 FT. TOTAL AMOUNTS MAY EXCEED 12 INCHES
  ABOVE 7000 FEET.

* WINDS...SOUTHWEST TO WEST WINDS 15 TO 25 MPH WITH GUSTS TO 30
  MPH THROUGH SUNDAY MORNING. 

* VISIBILITY...REDUCED BELOW ONE-QUARTER MILE AT TIMES IN SNOW
  AND FOG.

* IMPACTS...RESIDENTS AND TRAVELERS IN MOUNTAINS SHOULD BE
  PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS...CHAIN
  CONTROLS..AND POSSIBLE ROAD CLOSURES. 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.

&&

$$

MOEDE
112 
WWUS46 KSGX 011225
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
425 AM PST SUN MAR 1 2015

...SNOW SHOWERS IN THE MOUNTAINS ABOVE 5000 FEET THROUGH MONDAY
WITH PERIODS OF HEAVY SNOWFALL POSSIBLE...

.A COLD LOW PRESSURE SYSTEM CENTERED NEAR POINT CONCEPTION WILL
MOVE VERY SLOWLY SOUTHWARD TODAY...THEN MOVE EASTWARD AND INLAND
ACROSS SOUTHERN CALIFORNIA TONIGHT AND MONDAY AS IT WEAKENS.
PERIODS OF SNOW SHOWERS WILL CONTINUE INTO MONDAY. THE GREATEST
POTENTIAL FOR HEAVIER SNOWFALL TODAY IS FROM THE SAN DIEGO COUNTY
MOUNTAINS NORTHWARD INTO THE RIVERSIDE COUNTY MOUNTAINS AND
POSSIBLY THE SAN BERNARDINO MOUNTAINS. HEAVIER SNOWFALL ACROSS THE
MOUNTAINS IS ALSO POSSIBLE AGAIN AROUND MONDAY MORNING. 

CAZ055-056-058-012230-
/O.CON.KSGX.WS.W.0002.000000T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
425 AM PST SUN MAR 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW LEVELS...AROUND 5000 FEET TODAY...FALLING TO AROUND 4500
  FEET FOR LATE TONIGHT AND MONDAY.

* TIMING...PERIODS OF SNOW SHOWERS WILL CONTINUE INTO MONDAY. THE
  GREATEST POTENTIAL FOR HEAVIER SNOWFALL TODAY IS FROM THE SAN
  DIEGO COUNTY MOUNTAINS NORTHWARD INTO THE RIVERSIDE COUNTY
  MOUNTAINS AND POSSIBLY THE SAN BERNARDINO MOUNTAINS. HEAVIER
  SNOWFALL ACROSS THE MOUNTAINS IS ALSO POSSIBLE AGAIN AROUND
  MONDAY MORNING. 

* TOTAL SNOW ACCUMULATIONS THROUGH MONDAY...1 TO 3 INCHES FOR
  4000 TO 5000 FEET...4 TO 8 INCHES FOR 5000 TO 6000 FT... 8 TO 12
  INCHES FOR 6000 TO 7000 FT. TOTAL AMOUNTS MAY EXCEED 12 INCHES
  ABOVE 7000 FEET.

* VISIBILITY...REDUCED BELOW ONE-QUARTER MILE AT TIMES IN SNOW  
  AND FOG.

* IMPACTS...RESIDENTS AND TRAVELERS IN MOUNTAINS SHOULD BE  
PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS...CHAIN  
CONTROLS..AND POSSIBLE ROAD CLOSURES. 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.

&&

$$

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 A DETAILED MAP OF THE HAZARD:
WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=SGX

17

17
686 
WWUS46 KSGX 012124
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
124 PM PST SUN MAR 1 2015

...SNOW SHOWERS IN THE MOUNTAINS ABOVE 4500 FEET THROUGH MONDAY
WITH PERIODS OF HEAVY SNOWFALL POSSIBLE ABOVE 5000 FEET...

.A COLD LOW PRESSURE SYSTEM CENTERED NEAR POINT CONCEPTION WILL
MOVE VERY SLOWLY SOUTHEAST OVER SOUTHERN CALIFORNIA THROUGH
MONDAY. PERIODS OF SNOW SHOWERS WILL CONTINUE INTO MONDAY. THE
GREATEST POTENTIAL FOR HEAVIER SNOWFALL IS FROM THE SAN DIEGO
COUNTY MOUNTAINS NORTHWARD INTO THE RIVERSIDE COUNTY MOUNTAINS.

CAZ055-056-058-020530-
/O.CON.KSGX.WS.W.0002.000000T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
124 PM PST SUN MAR 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW LEVELS...FALLING TO AROUND 4500 FEET FOR LATE TONIGHT AND
  MONDAY.

* TIMING...PERIODS OF SNOW SHOWERS WILL CONTINUE THROUGH MONDAY.
 
* TOTAL SNOW ACCUMULATIONS THROUGH MONDAY...1 TO 3 INCHES FOR 4000
  TO 5000 FEET...5 TO 10 INCHES FOR 5000 TO 6000 FT...8 TO 12
  INCHES FOR 6000 TO 7500 FT.

* VISIBILITY...REDUCED BELOW ONE-QUARTER MILE AT TIMES IN SNOW  
  AND FOG.

* IMPACTS...RESIDENTS AND TRAVELERS IN MOUNTAINS SHOULD BE
  PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS...CHAIN
  CONTROLS...AND POSSIBLE ROAD CLOSURES. 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.

&&

$$

JAD
789 
WWUS46 KSGX 020529
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
929 PM PST SUN MAR 1 2015

...SNOW SHOWERS IN THE MOUNTAINS ABOVE 4500 FEET THROUGH MONDAY
WITH PERIODS OF HEAVY SNOWFALL POSSIBLE ABOVE 5000 FEET...

.A COLD LOW PRESSURE SYSTEM CENTERED NEAR POINT CONCEPTION WILL
MOVE VERY SLOWLY SOUTHEAST OVER SOUTHERN CALIFORNIA THROUGH
MONDAY. PERIODS OF SNOW SHOWERS WILL CONTINUE INTO MONDAY. THE
GREATEST POTENTIAL FOR HEAVIER SNOWFALL IS FROM THE SAN DIEGO
COUNTY MOUNTAINS NORTHWARD INTO THE RIVERSIDE COUNTY MOUNTAINS.

CAZ055-056-058-021400-
/O.CON.KSGX.WS.W.0002.000000T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
929 PM PST SUN MAR 1 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST MONDAY...

* SNOW LEVELS...FALLING TO AROUND 4500 FEET FOR LATE TONIGHT AND
  MONDAY.

* TIMING...PERIODS OF SNOW SHOWERS WILL CONTINUE THROUGH MONDAY.

* TOTAL SNOW ACCUMULATIONS HAVE REACHED 4 TO 8 INCHES ABOVE 6000
  FEET THUS FAR. THROUGH MONDAY...AN ADDITIONAL 1 TO 3 INCHES IS
  EXPECTED BETWEEN 4000 TO 5000 FEET...3 TO 6 INCHES BETWEEN 5000
  TO 6000 FT...WITH 6 TO 8 INCHES ABOVE 6000 FT.

* VISIBILITY...REDUCED BELOW ONE-QUARTER MILE AT TIMES IN SNOW
  AND FOG.

* IMPACTS...RESIDENTS AND TRAVELERS IN MOUNTAINS SHOULD BE
  PREPARED FOR HAZARDOUS WINTER WEATHER CONDITIONS...CHAIN
  CONTROLS...AND POSSIBLE ROAD CLOSURES. 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.

&&

$$
JT
265 
WWUS46 KSGX 021108
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
308 AM PST MON MAR 2 2015

...SNOW SHOWERS IN THE MOUNTAINS ABOVE 4500 FEET THROUGH THIS
AFTERNOON WITH PERIODS OF HEAVY SNOWFALL POSSIBLE ABOVE 5000
FEET...

.A COLD LOW PRESSURE SYSTEM CENTERED SOUTH OF POINT CONCEPTION
WILL MOVE EASTWARD TODAY. THIS WILL BRING PERIODS OF SNOW SHOWERS
AND ISOLATED THUNDERSTORMS THROUGH THIS AFTERNOON.

CAZ055-056-058-022230-
/O.CON.KSGX.WS.W.0002.000000T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
308 AM PST MON MAR 2 2015

...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* SNOW LEVELS...AROUND 4500 FEET.

* SNOWFALL...THROUGH THIS AFTERNOON AN ADDITIONAL 1 TO 3 INCHES
  IS EXPECTED BETWEEN 4000 TO 5000 FEET...3 TO 6 INCHES BETWEEN
  5000 TO 6000 FT...WITH 6 TO 8 INCHES ABOVE 6000 FT.

* VISIBILITY...REDUCED BELOW ONE QUARTER MILE AT TIMES IN SNOW
  AND FOG.

* IMPACTS...RESIDENTS AND TRAVELERS IN MOUNTAINS SHOULD BE PREPARED
  FOR HAZARDOUS WINTER WEATHER CONDITIONS...CHAIN CONTROLS...AND
  POSSIBLE ROAD CLOSURES. 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.

&&

$$

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 A DETAILED MAP OF THE HAZARD:
WWW.WRH.NOAA.GOV/WRH/WHV/?WFO=SGX

17
035 
WWUS46 KSGX 022359
WSWSGX

URGENT - WINTER WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN DIEGO CA
359 PM PST MON MAR 2 2015

...WINTER STORM WARNING WILL EXPIRE AT 4 PM PST...

CAZ055-056-058-030100-
/O.EXP.KSGX.WS.W.0002.000000T0000Z-150303T0000Z/
SAN BERNARDINO COUNTY MOUNTAINS-RIVERSIDE COUNTY MOUNTAINS-
SAN DIEGO COUNTY MOUNTAINS-
INCLUDING THE FOLLOWING LOCATIONS...BIG BEAR CITY...
BIG BEAR LAKE...LAKE ARROWHEAD...RUNNING SPRINGS...WRIGHTWOOD
359 PM PST MON MAR 2 2015

...WINTER STORM WARNING WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

THE STORM CONTINUES TO WIND DOWN. SNOW SHOWERS ARE TAPERING OFF IN
THE MOUNTAINS. 

THE HIGHEST SNOW AMOUNT REPORTED SO FAR WAS 9.5" AT PINE COVE IN
THE RIVERSIDE COUNTY MOUNTAINS. PALOMAR MOUNTAIN REPORTED 6-8" OF
SNOW...AND BIG BEAR REPORTED 4-7" OF SNOW.

A PRECIPITATION SUMMARY IS AVAILABLE ON OUR WEBPAGE AT
WWW.WRH.NOAA.GOV/SGX

$$

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 Feb 27, 9:30 AM PST, 3 hours 35 minutes earlier.

Area forecast discussion, Feb 27, 9:30 AM PST, 3 hours 35 minutes before
AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE SAN DIEGO CA
930 AM PST FRI FEB 27 2015

.SYNOPSIS...
A LOW PRESSURE SYSTEM FROM THE NORTH WILL BRING COOLER WEATHER WITH
PERIODS OF SHOWERS FOR TONIGHT THROUGH TUESDAY. THERE WILL BE STRONG
GUSTY WEST WINDS IN THE MOUNTAINS AND DESERTS FOR TONIGHT AND
SATURDAY...DECREASING SATURDAY NIGHT. FAIR WEATHER WITH SEASONAL
TEMPERATURES WILL FOLLOW LATER WEDNESDAY AND THURSDAY.

&&

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

MOSTLY CLOUDY SKIES RESULTED THIS MORNING FROM A RAPIDLY DEEPENING
MARINE LAYER. SOME CLOUDS WILL STAY WITH US ALL DAY TODAY AS A
WINTER STORM DROPS DOWN THE COAST. THIS LOW PRESSURE TROUGH CONTAINS
SOME COLD CONTINENTAL AIR ALTHOUGH THE TRACK OF THE TROUGH IS OVER
WATER. IT IS NOT THE WETTEST SYSTEM WE HAVE SEEN...BUT WE WILL GET
SOME SHOWERS THAT WILL ACCUMULATE TO DECENT PRECIP TOTALS BEFORE WE
ARE DONE. EXPECT THE SHOWERS TO BEGIN MAINLY IN MOUNTAINS THIS
EVENING AND BECOME MORE WIDESPREAD OVERNIGHT. SHOWERS WILL CONTINUE
SATURDAY. STRONG WINDS WILL DEVELOP MOSTLY IN THE MOUNTAINS AND
DESERTS THIS EVENING ALONG THE FRONT EDGE OF THE TROUGH AND WILL
CONTINUE SATURDAY BEFORE SUBSIDING SATURDAY NIGHT. THERE ARE NOT
REALLY ANY CLEAR FRONTAL BANDS OR BANDS OF MOISTURE THAT WOULD MAKE
FOR STEADY HEAVY PRECIP...BUT THERE DOES SEEM TO BE A WAVE OR BAND
OF MOISTURE THAT WOULD INCREASE COVERAGE AND INTENSITY SATURDAY
NIGHT INTO SUNDAY MORNING.

PRECIP AMOUNTS:
COAST AND VALLEYS: 0.50 TO 1.25 INCH
MOUNTAINS: 1.50 TO 3 INCHES
DESERTS: UP TO 0.65 INCH.

SNOW SHOWERS WILL FALL MAINLY ABOVE 5000 FEET THROUGH SATURDAY.
COLDER AIR ARRIVES SUNDAY MORNING...DROPPING THE SNOW LEVEL TO 4000
FEET. SNOWFALL TOTALS ABOVE 5000 FEET WILL BE 4 TO 12 INCHES. THE
COLD AIR WILL ALSO DESTABILIZE OUR ATMOSPHERE SO THAT A FEW
THUNDERSTORMS BECOME POSSIBLE SATURDAY NIGHT AND SUNDAY.
INITIALLY...THUNDERSTORMS ARE MOST LIKELY IN ORANGE COUNTY...BUT
THEN THE CHANCE SPREADS ACROSS THE ENTIRE REGION SUNDAY NIGHT AND
CONTINUES MONDAY. OF COURSE RAINFALL AMOUNTS WILL VARY GREATLY
BETWEEN THE TSTORM HAVES AND HAVE NOTS. THE TROUGH TAKES ITS TIME
SLOWLY MOVING THROUGH OUR REGION. ON MONDAY AN ADDITIONAL SHORTWAVE
ZIPS DOWN THE BACKSIDE OF THE TROUGH TO BASICALLY PROLONG THE
SHOWERS AND KEEP THE SNOW LEVELS LOW AND INSTABILITY SUFFICIENT FOR
A FEW THUNDERSTORMS. MODELS BEGIN TO DIFFER ON TUESDAY. THE GFS AND
ITS ENSEMBLES MOVE THE TROUGH OUT MONDAY NIGHT AND END THE PRECIP
THEN. THE EURO MODEL HANGS ON TO THE TROUGH FOR ANOTHER DAY FOR
SHOWERS UNTIL TUESDAY NIGHT. EITHER WAY BY MIDWEEK FAIR...DRY AND
WARMER WEATHER WILL TAKE OVER. FOR DETAILS ON SNOW...SEE OUR WINTER
STORM WATCH LAXWSWSGX. FOR DETAILS ON WIND...SEE OUR WIND ADVISORY
LAXNPWSGX.

&&

.AVIATION...

271616Z...PATCHY STRATUS OVER THE COAST...VALLEYS AND ALONG THE
COASTAL SLOPES...WITH BASES 2500-3000 FT MSL...TOPS 3000-4000 FT MSL
AND MTN OBSCURATION DUE TO CLOUDS...WILL PARTIALLY CLEAR THROUGH
2300 UTC. 2300-28/1500 UTC...STRATUS REDEVELOPING OVER THE
COAST...VALLEYS AND MOUNTAINS...WITH BASES 2500-3500 FT MSL AND TOPS
5000-6000 FT MSL. ISOLATED SHOWERS WILL BEGIN OVER AND WEST OF THE
MOUNTAINS AFTER 28/0300 UTC...WITH SHOWERS BECOMING SCATTERED AFTER
28/0900 UTC...PRODUCING LOCAL VIS BELOW 3 SM. MOUNTAIN OBSCURATION
WILL OCCUR DUE TO CLOUDS AND SHOWERS. DESERTS WILL CONTINUE TO HAVE
UNRESTRICTED VIS THROUGH SATURDAY MORNING.

AFTER 2100 UTC...W WINDS STRENGTHENING...BECOMING 20-35 KT WITH
GUSTS 40-50 KT OVER MTN RIDGES...THROUGH AND BELOW
CANYONS/PASSES...ALONG DESERT SLOPES AND INTO ADJACENT DESERT
AREAS...RESULTING IN STG-SVR UDDFS/LLWS/ROTORS OVER AND E OF THE
MTNS CONTINUING INTO SATURDAY MORNING.

&&

.MARINE...

816 AM...WINDS AND SEAS WILL INCREASE THIS AFTERNOON THROUGH
SATURDAY AFTERNOON WITH AN APPROACHING STORM SYSTEM. WEST-NORTHWEST
WIND GUSTS 25 TO 30 KT ARE LIKELY OVER THE COASTAL WATERS DURING
THAT TIME PERIOD...WITH SHORT-PERIOD SEAS INCREASING TO 6-9
FEET...RESULTING IN HAZARDOUS CONDITIONS FOR SMALL CRAFT. A SMALL
CRAFT ADVISORY GOES INTO EFFECT THIS AFTERNOON. WINDS AND SEAS WILL
LOWER SATURDAY NIGHT INTO SUNDAY...ALTHOUGH ANOTHER ROUND OF BRIEFER
GUSTY NORTHWEST WINDS MAY OCCUR ON TUESDAY DUE TO ANOTHER
DISTURBANCE MOVING THROUGH THE REGION.

ALSO WITH THIS STORM SYSTEM...PERIODS OF SHOWERS WILL OCCUR THIS
WEEKEND...WITH THUNDERSTORMS POSSIBLE SUNDAY INTO MONDAY.
THUNDERSTORMS MAY PRODUCE SMALL HAIL...GUSTY AND ERRATIC
WINDS...HEAVY RAINS AND WATERSPOUTS. FOR FORECAST DETAILS...SEE
LAXCWFSGX.

&&

.SKYWARN...
SKYWARN ACTIVATION IS NOT REQUESTED. HOWEVER WEATHER SPOTTERS ARE
ENCOURAGED TO REPORT SIGNIFICANT WEATHER CONDITIONS.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...WIND ADVISORY FROM 6 PM THIS EVENING TO 3 AM PST SUNDAY FOR
     COACHELLA VALLEY-RIVERSIDE COUNTY MOUNTAINS-SAN DIEGO
     COUNTY DESERTS-SAN DIEGO COUNTY MOUNTAINS.

     WINTER STORM WATCH FROM SATURDAY AFTERNOON THROUGH MONDAY
     AFTERNOON FOR RIVERSIDE COUNTY MOUNTAINS-SAN BERNARDINO
     COUNTY MOUNTAINS-SAN DIEGO COUNTY MOUNTAINS ABOVE 5000 FEET.

     WIND ADVISORY FROM 6 PM THIS EVENING TO 4 PM PST SATURDAY FOR
     APPLE AND LUCERNE VALLEYS-SAN BERNARDINO COUNTY MOUNTAINS-
     SAN GORGONIO PASS NEAR BANNING.

PZ...SMALL CRAFT ADVISORY FROM 2 PM THIS AFTERNOON TO 1 PM PST
     SATURDAY FOR COASTAL WATERS FROM SAN MATEO POINT TO THE
     MEXICAN BORDER AND OUT TO 30 NM-WATERS FROM SAN MATEO POINT
     TO THE MEXICAN BORDER EXTENDING 30 TO 60 NM OUT INCLUDING
     SAN CLEMENTE ISLAND.

&&

PUBLIC...MM
AVIATION/MARINE...HARRISON

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 2:45 AM PSTWind AdvisorySGXRiverside, San Bernardino, San Diego37 hr
Feb 27, 3:26 AM PSTSmall Craft AdvisorySGX34 hr

Nearby

Winter Storm Warnings in California, 2015Every winter storm warning in 2015

Sources

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