Winter Weather Advisory 2, NWS San Diego, CA

517 
WWUS46 KSGX 221056
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
256 AM PST Fri Jan 22 2021

...Wintry travel conditions tonight into Saturday...

.Light snow falling along the busy freeway mountain passes could
trigger hazardous travel conditions tonight through Saturday. 
Please plan ahead, particularly if traveling along Interstate 15 
through the Cajon Pass and Interstate 8 through the San Diego
County mountains.

CAZ055-056-058-222300-
/O.CON.KSGX.WW.Y.0002.210123T0600Z-210124T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
256 AM PST Fri Jan 22 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 10 PM PST SATURDAY ABOVE 4000 FEET...

* WHAT...Snow expected. Plan on slippery road conditions. Total 
  snow accumulations of 1 to 3 inches, with localized amounts up 
  to 8 inches, are expected.

* WHERE...Mountain travel corridors, especially Interstates 15 and
  8. Snowfall in the mountains above 4000 feet, with several 
  inches of snowfall likely above 5000 to 5500 feet.

* WHEN...10 PM today to 10 PM Saturday.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at 
  times.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

$$

17

562 
WWUS46 KSGX 222012
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1212 PM PST Fri Jan 22 2021


CAZ055-056-058-230600-
/O.NEW.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
/O.CON.KSGX.WW.Y.0002.210123T0600Z-210124T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
1212 PM PST Fri Jan 22 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT FROM 10 PM THIS
EVENING TO 10 PM PST SATURDAY ABOVE 4000 FEET...
...WINTER STORM WATCH IN EFFECT FROM LATE SUNDAY EVENING THROUGH
MONDAY EVENING...

* WHAT...Snow expected above 4000 feet. Heavy snow possible. Plan
  on slippery road conditions. Damage to trees and power lines is
  possible. Above 4000 feet, total snow accumulations of 1 to 3
  inches, with localized amounts up to 8 inches, are expected
  through Saturday evening. On Monday, total snow accumulations 
  of 3 to 7 inches, with localized amounts up to 16 inches, are 
  possible.

* WHERE...Mountains above 4000 feet late tonight through Saturday
  evening. Mountains above 3500 feet sunday night through Monday
  evening.
  
* WHEN...For the Winter Weather Advisory, 10 PM today to 10 PM 
  Saturday. For the Winter Storm Watch, from late Sunday evening 
  through Monday evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at times
  and hazardous travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibility, and use caution while driving. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for heavy snow and 
strong winds that may impact travel. Continue to monitor the 
latest forecasts.

$$

10

325 
WWUS46 KSGX 230536
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
936 PM PST Fri Jan 22 2021

CAZ055-056-058-231345-
/O.CON.KSGX.WW.Y.0002.210123T0600Z-210124T0600Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
936 PM PST Fri Jan 22 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST
SATURDAY ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY EVENING...

* WHAT...Snow expected above 4000 feet. Heavy snow possible. 
  Plan on slippery road conditions. Damage to trees and power 
  lines is possible. Above 4000 feet, total snow accumulations 
  of 1 to 3 inches, with localized amounts up to 8 inches, are 
  expected through Saturday evening. On Monday, total snow 
  accumulations of 3 to 7 inches, with localized amounts up to 
  16 inches, are possible.

* WHERE...Mountains above 4000 feet through Saturday evening. 
  Mountains above 3500 feet Sunday night through Monday evening.

* WHEN...For the Winter Weather Advisory, through 10 PM Saturday.
  For the Winter Storm Watch, from late Sunday evening through 
  Monday evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at 
  times and hazardous travel conditions.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

977 
WWUS46 KSGX 231247
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
447 AM PST Sat Jan 23 2021

CAZ055-056-058-232200-
/O.CON.KSGX.WW.Y.0002.000000T0000Z-210124T0600Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
447 AM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY EVENING...

* WHAT...Scattered snow showers above 4,000 to 4,500 feet through
  Saturday evening. Additional snow accumulations of 1 to 3 inches
  above 4,000 feet, with localized amounts up to 6 inches, are
  expected. Total snow accumulations of 4 to 8 inches, with
  localized amounts up to 12 inches, are possible. For the Winter
  Storm Watch on Monday, total accumulations 4 to 8 inches above
  3,500 feet, and 6 to 12 inches above 4,500 feet. Localized
  amounts of 12 to 18 inches possible, particularly in the San
  Diego County Mountains.

* WHERE...Mountains above 4000 feet through Saturday evening. 
  Mountains above 3500 feet Sunday night through Monday evening.

* WHEN...For the Winter Weather Advisory, until 10 PM today. For 
  the Winter Storm Watch, from Sunday evening through Monday 
  evening.

* IMPACTS...Treacherous travel conditions in the mountains.
  Possible damage to trees and powerlines. For Sunday night
  through Monday storm, severe travel impacts are expected with
  possible road closures of major roadways. Significant
  accumulations likely for Cajon Pass/I-15 and I-8 east of Viejas,
  with possible impacts to lower-elevation roads including I-10
  through San Gorgonio Pass.

* ADDITIONAL DETAILS...Be prepared for reduced visibilities at
  times with areas of dense fog resulting in dangerous driving
  conditions. Another storm system looks likely to impact the
  region during the second half of the week. Although amounts
  remain uncertain, there is potential for large snow
  accumulations in the mountains, locally exceeding 1 to 2 feet.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Rodriguez

234 
WWUS46 KSGX 232213
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
213 PM PST Sat Jan 23 2021

CAZ055-056-058-240615-
/O.CON.KSGX.WW.Y.0002.000000T0000Z-210124T0600Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
213 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 10 PM PST THIS
EVENING ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY EVENING...

* WHAT...Scattered snow showers above 4,000 to 4,500 feet through
  this evening. Additional snow accumulations of 1 to 3 inches
  above 4,000 feet, with localized amounts up to 6 inches, are
  expected. Total snow accumulations of 4 to 8 inches are 
  possible. For the Winter Storm Watch on Monday, total 
  accumulations 4 to 8 inches above 3,500 feet, and 6 to 12 inches
  above 4,500 feet. Localized amounts of 12 to 18 inches 
  possible, particularly in the San Diego County Mountains.

* WHERE...Mountains above 4000 feet through Saturday evening. 
  Mountains above 3500 feet Sunday night through Monday evening.

* WHEN...For the Winter Weather Advisory, until 10 PM today. For 
  the Winter Storm Watch, from Sunday evening through Monday 
  evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at times
  with areas of dense fog resulting in dangerous driving
  conditions. Another storm system looks likely to impact the
  region late in the week. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

455 
WWUS46 KSGX 240417
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
817 PM PST Sat Jan 23 2021

CAZ055-056-058-241345-
/O.EXT.KSGX.WW.Y.0002.000000T0000Z-210124T1400Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
817 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 6 AM PST SUNDAY
ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY EVENING...

* WHAT...Scattered snow showers above 4,000 to 4,500 feet through
  Sunday morning. Additional snow accumulations of 1 to 3 inches 
  overnight above 4,000 feet. For the Winter Storm Watch on 
  Monday, total accumulations 4 to 8 inches above 3,500 feet, and 
  6 to 12 inches above 4,500 feet. Localized amounts of 12 to 18 
  inches possible, particularly in the San Diego County Mountains.

* WHERE...Mountains above 4000 feet through Sunday morning. 
  Mountains above 3500 feet Sunday night through Monday evening.

* WHEN...For the Winter Weather Advisory, until 6 AM Sunday. For 
  the Winter Storm Watch, from Sunday evening through Monday 
  evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at 
  times with areas of dense fog resulting in dangerous driving 
  conditions. Another storm system looks likely to impact the 
  region late in the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for snow means periods of snow will
cause primarily travel difficulties. Be prepared for snow covered
roads and limited visibilities, and use caution while driving. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Connolly

781 
WWUS46 KSGX 240718
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1118 PM PST Sat Jan 23 2021

...SNOW ACCUMULATIONS IN THE HIGH DESERT THROUGH 3 AM...

CAZ060-241400-
/O.EXB.KSGX.WW.Y.0002.000000T0000Z-210125T1100Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
1118 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 AM PST MONDAY...

* WHAT...Wrap-around showers are resulting in accumulating snow
  down to at least 3,000 feet, and locally lower. Between 1 and 3
  inches may accumulate through early morning, with highest
  amounts in the foothills.

* WHERE...Through 3 AM Sunday morning.

* WHEN...Until 3 AM Monday.

* ADDITIONAL DETAILS...Accumulating snow will lead to treacherous
  travel conditions in spots, with icy conditions possible as 
  temperatures fall to freezing and locally below.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling, especially in open areas. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

$$

CAZ055-056-058-241400-
/O.CON.KSGX.WW.Y.0002.000000T0000Z-210124T1400Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
1118 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST
SUNDAY ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY EVENING...

* WHAT...Scattered mountain snow showers through early Sunday 
  morning with locally 1 to 2 inches of additional accumulation. 
  For the Winter Storm Watch, plan on difficult travel conditions,
  including during the morning commute on Monday. Damage to trees
  and power lines well be possible. Total accumulations 4 to 8 
  inches above 3,500 feet, and 6 to 12 inches above 4,500 feet. 
  Localized amounts of 12 to 18 inches possible, particularly in 
  the San Diego County Mountains.

* WHERE...Mountains above 4000 feet through Sunday morning. 
  Mountains above 3500 feet Sunday night through Monday evening.

* WHEN...For the Winter Weather Advisory, until 6 AM Sunday. For 
  the Winter Storm Watch, from Sunday evening through Monday 
  evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at 
  times with areas of dense fog resulting in dangerous driving 
  conditions. Another storm system looks likely to impact the 
  region late in the week.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling, especially in open areas. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Rodriguez

208 
WWUS46 KSGX 240743 CCA
WSWSGX

URGENT - WINTER WEATHER MESSAGE...CORRECTED
National Weather Service SAN DIEGO CA
1143 PM PST Sat Jan 23 2021

...SNOW ACCUMULATIONS IN THE HIGH DESERT THROUGH 3 AM...

CAZ060-241400-
/O.COR.KSGX.WW.Y.0002.000000T0000Z-210125T1100Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
1143 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY IN EFFECT UNTIL 3 AM PST MONDAY...

* WHAT...Wrap-around showers are resulting in accumulating snow
  down to at least 3,000 feet, and locally lower. Between 1 and 3
  inches may accumulate through early morning, with highest
  amounts in the foothills.

* WHERE...Locations above 2,500 feet in the High Desert. Highest
  accumulations near the foothills around Hesperia and Lucerne
  Valley.

* WHEN...Until 3 AM Sunday.

* ADDITIONAL DETAILS...Accumulating snow will lead to treacherous
  travel conditions in spots, with icy conditions possible as 
  temperatures fall to freezing and locally below.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling, especially in open areas. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

$$

CAZ055-056-058-241400-
/O.CON.KSGX.WW.Y.0002.000000T0000Z-210124T1400Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
1143 PM PST Sat Jan 23 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST
SUNDAY ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM SUNDAY EVENING
THROUGH MONDAY EVENING...

* WHAT...Scattered mountain snow showers through early Sunday 
  morning with locally 1 to 2 inches of additional accumulation. 
  For the Winter Storm Watch, plan on difficult travel conditions,
  including during the morning commute on Monday. Damage to trees
  and power lines well be possible. Total accumulations 4 to 8 
  inches above 3,500 feet, and 6 to 12 inches above 4,500 feet. 
  Localized amounts of 12 to 18 inches possible, particularly in 
  the San Diego County Mountains.

* WHERE...Mountains above 4000 feet through Sunday morning. 
  Mountains above 3500 feet Sunday night through Monday evening.

* WHEN...For the Winter Weather Advisory, until 6 AM Sunday. For 
  the Winter Storm Watch, from Sunday evening through Monday 
  evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at 
  times with areas of dense fog resulting in dangerous driving 
  conditions. Another storm system looks likely to impact the 
  region late in the week.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling, especially in open areas. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Rodriguez

919 
WWUS46 KSGX 240925
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
125 AM PST Sun Jan 24 2021

...SNOW ACCUMULATIONS IN THE HIGH DESERT THROUGH 3 AM...

CAZ060-241100-
/O.EXT.KSGX.WW.Y.0002.000000T0000Z-210124T1100Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
125 AM PST Sun Jan 24 2021

...WINTER WEATHER ADVISORY NOW IN EFFECT UNTIL 3 AM PST EARLY
THIS MORNING...

* WHAT...Wrap-around showers are resulting in accumulating snow
  down to at least 3,000 feet, and locally lower. Between 1 and 2
  additional inches may accumulate through early morning, with 
  highest amounts in the foothills.

* WHERE...Locations above 2,500 feet in the High Desert. Highest
  accumulations near the foothills around Hesperia and Lucerne
  Valley.

* WHEN...Until 3 AM Sunday.

* ADDITIONAL DETAILS...Accumulating snow will lead to treacherous
  travel conditions in spots, with icy conditions possible as 
  temperatures fall to freezing and locally below.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling, especially in open areas. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

$$

CAZ055-056-058-241400-
/O.CON.KSGX.WW.Y.0002.000000T0000Z-210124T1400Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
125 AM PST Sun Jan 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST EARLY
THIS MORNING ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
MONDAY EVENING...

* WHAT...Scattered mountain snow showers through early Sunday 
  morning with locally 1 to 2 inches of additional accumulation. 
  For the Winter Storm Watch, plan on difficult travel conditions,
  including during the morning commute on Monday. Damage to trees
  and power lines well be possible. Total accumulations 4 to 8 
  inches above 3,500 feet, and 6 to 12 inches above 4,500 feet. 
  Localized amounts of 12 to 18 inches possible, particularly in 
  the San Diego County Mountains.

* WHERE...Mountains above 4000 feet through Sunday morning. 
  Mountains above 3500 feet Sunday night through Monday evening.

* WHEN...For the Winter Weather Advisory, until 6 AM Sunday. For 
  the Winter Storm Watch, from Sunday evening through Monday 
  evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at 
  times with areas of dense fog resulting in dangerous driving 
  conditions. Another storm system looks likely to impact the 
  region late in the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling, especially in open areas. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Rodriguez

611 
WWUS46 KSGX 241058
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
258 AM PST Sun Jan 24 2021

CAZ060-241200-
/O.EXP.KSGX.WW.Y.0002.000000T0000Z-210124T1100Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
258 AM PST Sun Jan 24 2021

...WINTER WEATHER ADVISORY WILL EXPIRE AT 3 AM PST EARLY THIS
MORNING...

A few light snow showers may linger through sunrise but little to
no additional accumulations are expected.

$$

CAZ055-056-058-242200-
/O.CON.KSGX.WW.Y.0002.000000T0000Z-210124T1400Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
258 AM PST Sun Jan 24 2021

...WINTER WEATHER ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST EARLY
THIS MORNING ABOVE 4000 FEET...
...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
MONDAY EVENING...

* WHAT...Scattered mountain snow showers through early Sunday 
  morning with locally 1 to 2 inches of additional accumulation. 
  For the Winter Storm Watch, plan on difficult travel 
  conditions, including during the morning commute on Monday. 
  Damage to trees and power lines well be possible. Total 
  accumulations 4 to 8 inches above 3,500 feet, and 6 to 12 
  inches above 4,500 feet. Localized amounts of 12 to 18 inches 
  possible, particularly in the San Diego County Mountains.

* WHERE...Mountains above 4000 feet through Sunday morning. 
  Mountains above 3500 feet Sunday night through Monday evening.

* WHEN...For the Winter Weather Advisory, until 6 AM Sunday. For 
  the Winter Storm Watch, from Sunday evening through Monday 
  evening.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at 
  times with areas of dense fog resulting in dangerous driving 
  conditions. Another storm system looks likely to impact the 
  region late in the week.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Weather Advisory for blowing snow means that
visibilities will be limited due to strong winds blowing snow
around. Use caution when traveling, especially in open areas. 

For road condition information in California...enter
8 0 0 4 2 7 7 6 2 3 if inside california or
9 1 6 4 5 5 7 6 2 3 if outside California.

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Rodriguez

896 
WWUS46 KSGX 241357
WSWSGX

URGENT - WINTER WEATHER MESSAGE
National Weather Service SAN DIEGO CA
557 AM PST Sun Jan 24 2021

...HIGH IMPACT, LOW ELEVATION SNOW EXPECTED...

CAZ055-056-058-242200-
/O.EXP.KSGX.WW.Y.0002.000000T0000Z-210124T1400Z/
/O.CON.KSGX.WS.A.0001.210125T0600Z-210126T0600Z/
San Bernardino County Mountains-Riverside County Mountains-
San Diego County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Idyllwild-Pine Cove, 
Julian, and Pine Valley
557 AM PST Sun Jan 24 2021

...WINTER STORM WATCH REMAINS IN EFFECT FROM THIS EVENING THROUGH
MONDAY EVENING...
...WINTER WEATHER ADVISORY WILL EXPIRE AT 6 AM PST EARLY THIS
MORNING ABOVE 4000 FEET...

* WHAT...Heavy snow is expected startingas early as late this 
  evening and lasting through early Tuesday morning locally. In 
  the San Bernardino and Riverside County Mountains, total 
  accumulations up to 6 inches between 3,000 and 4,000 feet, and 5
  to 10 inches above 4,000 feet, with local amounts to 12 inches 
  above 5,000 feet. In the San Diego County Mountains, 2 to 6 
  inches between 3,000 and 4,000 feet, and 8 to 12 inches between 
  4,000 and 5,000 feet. Local amounts to 18 inches possible, 
  especially at the higher elevations. Significant accumulations 
  likely on Interstates 15 and 8.

* WHERE...Mountains above 3000 feet Sunday night through Monday 
  evening.

* WHEN...Sunday evening through early Tuesday morning.

* IMPACTS...Severe travel disruptions with treacherous driving
  conditions. Heavy snow likely to impact major freeways,
  including I-15 through Cajon Pass, and especially I-8 between
  Viejas and Boulevard. Low-elevation snow may result in more
  widespread travel impacts compared to typical winter storms.

* ADDITIONAL DETAILS...Be prepared for reduced visibility at times
  with areas of dense fog resulting in dangerous driving
  conditions. Another storm system looks likely to impact the
  region late in the week, with additional high elevation snow
  expected.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Winter Storm Watch means there is potential for significant
snow, sleet or ice accumulations that may impact travel. Continue
to monitor the latest forecasts.

$$

Rodriguez

Area Forecast Discussion
National Weather Service San Diego CA
235 PM PST Thu Jan 21 2021

.SYNOPSIS...
Weak high pressure aloft will bring dry weather tonight. A trough
from the north will bring increasing clouds Friday and areas of
light rain and mountain snow Friday night and Saturday. After a dry
day Sunday, a colder, wetter storm will bring heavier rain and
mountain snow Monday into Tuesday. This cool weather pattern will
persist through the end of next week.

&&

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

Today was sunny and cool west of the mountains with temperatures 5
to 10 degrees lower than yesterday. Low-topped cumulus bubbled up
over the mountains this afternoon. The deserts were mostly sunny and
mild.

An active Pacific jet with embedded shortwaves will keep the weather
over the West cool and unsettled through next week. Today was the
calm before the storm(s). On Friday the first in a series of troughs
will dig down the West Coast before moving inland across Southern
California and Northern Baja Friday night and Saturday.

The precipitation will first start in the SBD mountains late Friday
afternoon, then expand in areal coverage Friday night. The most
widespread precip will be Saturday along and ahead of the cold front
Saturday. This will be a cold system with 500 mb temperatures
falling to -28C Saturday afternoon. Steep lapse rates could generate
a t-storm.

Precipitation amounts through Saturday night will be from 0.10"-
0.50" west of the mountains, and from 0.25"-0.75" in the mountains.
The deserts will see 0.01-0.10". Snow levels will fall to 4,000-
4,500 feet on Saturday. Snow totals above 6,500 feet will range from
4-8" in the San Bernardino and Riverside County Mountains, and from
1-4" between 5,000-6,500 feet.

After a break in the weather Sunday, a second stronger and much
colder wave digs south into the area. 500 mb temperatures with this
second shortwave plummet to -32C, 700 mb temperatures to -13C and
850 mb temps -3C. Snow levels will fall below 3,000 feet, and
perhaps down to 1,500 feet in the High Deserts where snow could
accumulate. Snow may also be seen in some parts of the Inland
Empire. Snow accumulations in the mountains will be from 6 to 18",
the amounts dependent on elevation. Rain amounts will range from
0.50"-1.50" west of the mountains, and from 0.05-0.25" in the
deserts.

This may be the coldest storm of the year. Highs on Monday and
Tuesday will be 15 to 25 degrees below average. Max temps on those
days will be only in the 20s in the SBD Mtns and highest Riverside
County Mtns. Elsewhere in the mountains the highs will be from 30-
35. Coastal highs will be from 55-60, and valley highs from 47-55.
Lower Deserts highs will only be 55-60, and the High Deserts in the
low 40s.

Overnight lows Monday night and Tuesday night will be a
concerns for agricultural interests. If the skies clear and the wind
diminish, the frost and freeze threats will increase, but if the
clouds, moisture and wind persist then the lows would not be that
low. It all depends on how quickly the trough exits the area, and we
will monitor that in the coming days.

This will also be a strong wind event over the coastal waters Monday
when gale force winds are possible.

&&

.AVIATION...
212100Z...Mostly clear across the OC/Inland Empire with SCT clouds
across the lower deserts and San Diego County valleys. SCT-BKN
clouds around 7000-9000 feet MSL over the mountains will linger into
the evening. Areas of low clouds with bases near 1500 ft developing
after 03Z tonight will likely rise to near 2500 feet MSL after 10Z,
spreading onto the coast and in parts of the valleys. Low clouds
clearing briefly late Friday morning.

&&

.MARINE...
No marine weather hazards are expected through the weekend, though
light showers are possible Friday night through Saturday night.
Confidence is increasing that another storm will bring hazardous
winds and seas Monday into Tuesday. Gusty northwest winds over 35
knots are possible. Seas over 10 feet in the inner waters and over
15 feet in the outer waters are also possible as well.

&&

.Beaches...
High surf is in the forecast with the incoming storm late Sunday
night into Monday with sets over 7 feet, which will lead to
hazardous swimming conditions and a higher risk for rip currents.

&&

.SKYWARN...
Skywarn activation may be requested Saturday and again on Monday.

&&

.SGX WATCHES/WARNINGS/ADVISORIES...
CA...NONE.
PZ...NONE.

&&

PUBLIC...Moede
AVIATION/MARINE/BEACHES...APR