Alert archive / California / Wind Advisories in 2020

Wind Advisory 4, NWS San Diego, CA

February 3, 20204 counties in California

NWS San Diego, CA issued this wind advisory at Feb 3, 2020, 12:59 PM PST for 4 counties in California. It was in force for 39 hr.

The area

The counties it named.

The facts

Issued
Feb 3, 2020, 12:59 PM PST (20:59 UTC)
Expired
Feb 5, 2020, 3:41 AM PST
In force
39 hr
Issued by
NWS San Diego, CA

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

The radar

The Santa Ana Mts radar (KSOX), 88 km from the middle of the area, began a volume at 20:58 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.

The nearest sounding before it

San Diego, CA (KNKX), launched 12:00Z, 9.0 hours before the alert went out and 124 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 2020-02-03Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 9 joules per kilogram.LCLLFCEL10008507005003002001001 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 2020-02-03The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 31 square meters per square second.19395878Sfc1 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
9 J/kg
Mixed-layer CIN
-3 J/kg
Mixed-layer LCL
573 m above ground
0-6 km bulk shear
57 kt
0-1 km storm-relative helicity
31 m²/s²
0-3 km storm-relative helicity
119 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

122 
WWUS76 KSGX 032059
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1259 PM PST Mon Feb 3 2020

CAZ048-040600-
/O.UPG.KSGX.HW.A.0004.200204T0200Z-200205T0800Z/
/O.NEW.KSGX.WI.Y.0004.200203T2059Z-200205T1700Z/
/O.UPG.KSGX.FZ.A.0001.200204T0600Z-200204T1800Z/
/O.NEW.KSGX.FZ.W.0001.200204T0600Z-200205T1800Z/
/O.UPG.KSGX.FZ.A.0002.200205T0600Z-200205T1800Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
1259 PM PST Mon Feb 3 2020

...WIND ADVISORY IN EFFECT UNTIL 9 AM PST WEDNESDAY...
...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST
WEDNESDAY...

* WHAT...For the Wind Advisory, north winds 15 to 25 mph with
  gusts 40 to 50 mph. Localized gusts to 55 or 60 mph below Cajon
  Pass and in the foothills of the San Bernardino Mountains. For
  the Freeze Warning, sub-freezing temperatures between 25 and 32
  degrees, and as low as 22 degrees Wednesday morning. 

* WHERE...The Inland Empire. Strongest winds in and near the 
  foothills. Coldest temperatures in southern portions of the Inland 
  Empire.

* WHEN...For the Wind Advisory, until 9 AM PST Wednesday. For the
  Freeze Warning, from 10 PM PST this evening through Wednesday 
  morning.

* IMPACTS...Tree limbs could be blown down and a few power outages
  may result. Difficult travel at times for high profile vehicles.
  Frost and freeze conditions could kill crops, other sensitive
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ060-040600-
/O.UPG.KSGX.HZ.A.0001.200204T0600Z-200204T1800Z/
/O.NEW.KSGX.HZ.W.0001.200204T0600Z-200205T1800Z/
/O.UPG.KSGX.HZ.A.0002.200205T0600Z-200205T1800Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
1259 PM PST Mon Feb 3 2020

...HARD FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM
PST WEDNESDAY...

* WHAT...Tonight, sub-freezing temperatures as low as 16 degrees.
  For Tuesday night, sub-freezing temperatures as low as 18 degrees 
  possible.

* WHERE...Apple and Lucerne Valleys. Coldest temperatures along and 
  west of Highway 247. 

* WHEN...From 10 PM PST this evening through Wednesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ050-061-062-040600-
/O.UPG.KSGX.FZ.A.0001.200204T0600Z-200204T1800Z/
/O.NEW.KSGX.FZ.W.0001.200204T0600Z-200205T1800Z/
/O.UPG.KSGX.FZ.A.0002.200205T0600Z-200205T1800Z/
San Diego County Valleys-Coachella Valley-
San Diego County Deserts-
Including the cities of Escondido, El Cajon, San Marcos, La Mesa,
Santee, Poway, Indio, Palm Springs, Cathedral City, Palm Desert, 
Palm Desert Country, La Quinta, Coachella, and Borrego Springs
1259 PM PST Mon Feb 3 2020

...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST
WEDNESDAY...

* WHAT...For the deserts tonight, sub-freezing temperatures as low
  as 30 degrees, and as low as 25 degrees tomorrow night. For the
  San Diego County Valleys, sub-freezing temperatures as low as 28
  degrees, and as low as 25 degrees tomorrow night.

* WHERE...San Diego County Valleys, Coachella Valley and San Diego
  County Deserts.

* WHEN...From 10 PM this evening to 10 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ055-057-554-040600-
/O.UPG.KSGX.HW.A.0004.200204T0200Z-200205T0800Z/
/O.NEW.KSGX.WI.Y.0004.200203T2059Z-200205T1700Z/
San Bernardino County Mountains-Santa Ana Mountains and Foothills-
Orange County Inland Areas-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, Wrightwood, Santa Ana, Anaheim, 
Garden Grove, Orange, Fullerton, and Mission Viejo
1259 PM PST Mon Feb 3 2020

...WIND ADVISORY IN EFFECT UNTIL 9 AM PST WEDNESDAY...

* WHAT...For inland Orange County, northeast winds 20 to 30 mph,
  with gusts 40 to 50 mph. For the mountains and foothills, north
  to northeast winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...San Bernardino County Mountains, Santa Ana Mountains and 
  Foothills and Orange County Inland Areas. Strongest on south and 
  southwest facing slopes.

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Tree limbs could be blown down and a few power outages
  may result. Difficult travel at times for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Rodriguez

For more information from the National Weather Service visit
http://weather.gov/sandiego
5 follow-up statements
125 
WWUS76 KSGX 040416
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
816 PM PST Mon Feb 3 2020

CAZ048-041400-
/O.CON.KSGX.FZ.W.0001.200204T0600Z-200205T1800Z/
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
816 PM PST Mon Feb 3 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY...

* WHAT...For the Wind Advisory, north winds 15 to 25 mph with 
  gusts 40 to 50 mph. Localized gusts to 55 or 60 mph below 
  Cajon Pass and in the foothills of the San Bernardino 
  Mountains. For the Freeze Warning, sub-freezing temperatures 
  between 25 and 32 degrees, and as low as 22 degrees Wednesday 
  morning.

* WHERE...The Inland Empire. Strongest winds in and near the 
  foothills. Coldest temperatures in southern portions of the 
  Inland Empire.

* WHEN...For the Wind Advisory, until 9 AM PST Wednesday. For 
  the Freeze Warning, from 10 PM PST this evening through 
  Wednesday morning.

* IMPACTS...Tree limbs could be blown down and a few power 
  outages may result. Difficult travel at times for high profile 
  vehicles. Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ060-041400-
/O.CON.KSGX.HZ.W.0001.200204T0600Z-200205T1800Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
816 PM PST Mon Feb 3 2020

...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM PST
WEDNESDAY...

* WHAT...Tonight, sub-freezing temperatures as low as 16 
  degrees. For Tuesday night, sub-freezing temperatures as low 
  as 18 degrees possible.

* WHERE...Apple and Lucerne Valleys. Coldest temperatures along 
  and west of Highway 247.

* WHEN...From 10 PM PST this evening through Wednesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ050-061-062-041400-
/O.CON.KSGX.FZ.W.0001.200204T0600Z-200205T1800Z/
San Diego County Valleys-Coachella Valley-
San Diego County Deserts-
Including the cities of Escondido, El Cajon, San Marcos, La Mesa,
Santee, Poway, Indio, Palm Springs, Cathedral City, Palm Desert, 
Palm Desert Country, La Quinta, Coachella, and Borrego Springs
816 PM PST Mon Feb 3 2020

...FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM PST WEDNESDAY...

* WHAT...For the deserts tonight, sub-freezing temperatures as 
  low as 30 degrees, and as low as 25 degrees tomorrow night. 
  For the San Diego County Valleys, sub-freezing temperatures as 
  low as 28 degrees, and as low as 25 degrees tomorrow night.

* WHERE...San Diego County Valleys, Coachella Valley and San 
  Diego County Deserts.

* WHEN...From 10 PM this evening to 10 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ057-554-041400-
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
Santa Ana Mountains and Foothills-Orange County Inland Areas-
Including the cities of Santa Ana, Anaheim, Garden Grove, Orange,
Fullerton, and Mission Viejo
816 PM PST Mon Feb 3 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...

* WHAT...For inland Orange County, northeast winds 20 to 30 mph,
  with gusts to 50 mph. For the mountains and foothills, north to
  northeast winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Santa Ana Mountains and Foothills and Orange County 
  Inland Areas. Strongest on south and southwest facing slopes.

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Tree limbs could be blown down and a few power 
  outages may result. Difficult travel at times for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ055-041400-
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear City,
Big Bear Lake, Running Springs, and Wrightwood
816 PM PST Mon Feb 3 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...

...WIND AND COLD TEMPERATURES WILL CREATE BELOW ZERO WIND CHILLS 
TONIGHT AND TUESDAY NIGHT...

* WHAT...North to northeast winds 25 to 35 mph with gusts up to 60
  mph along the coastal slopes and 10 to 15 mph with gusts up to
  30 mph elsewhere. The wind, in combination with low temperatures
  in the single digits, will result in wind chill readings from 0
  to -10 degrees across most areas.

* WHERE...San Bernardino County Mountains

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Tree limbs could be blown down and a few power outages
  may result. Difficult travel at times for high profile vehicles.
  Frostbite could occur on unprotected skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects. If going outdoors for
long duration, make sure all skin is covered.

&&

$$
Gregoria

For more information from the National Weather Service visit
http://weather.gov/sandiego
979 
WWUS76 KSGX 041300
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
500 AM PST Tue Feb 4 2020

CAZ061-062-042200-
/O.CAN.KSGX.FZ.W.0001.000000T0000Z-200205T1800Z/
/O.NEW.KSGX.FZ.W.0002.200205T0800Z-200205T1600Z/
Coachella Valley-San Diego County Deserts-
Including the cities of Indio, Palm Springs, Cathedral City, Palm
Desert, Palm Desert Country, La Quinta, Coachella, and Borrego 
Springs
500 AM PST Tue Feb 4 2020

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST
WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...Coachella Valley and San Diego County Deserts.

* WHEN...From midnight tonight to 8 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ048-042200-
/O.NEW.KSGX.FZ.W.0002.200205T0600Z-200205T1700Z/
/O.EXT.KSGX.FZ.W.0001.000000T0000Z-200204T1700Z/
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
500 AM PST Tue Feb 4 2020

...FREEZE WARNING NOW IN EFFECT UNTIL 9 AM PST THIS MORNING...
...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...
...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 9 AM PST
WEDNESDAY...

* WHAT...For the Freeze Warning this morning, sub-freezing
  temperatures as low as 30. For the Freeze Warning tonight, sub-
  freezing temperatures as low as 25 expected. For the Wind 
  Advisory, north winds 15 to 25 mph with gusts to 40 mph.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire.

* WHEN...For the Freeze Warning this morning, until 9 AM PST this
  morning. For the Freeze Warning tonight, from 10 PM this 
  evening to 9 AM PST Wednesday. For the Wind Advisory, until 9 AM
  PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. Tree
  limbs could be blown down and a few power outages may result.
  Frost and freeze conditions will kill crops, other sensitive
  vegetation and possibly damage unprotected outdoor plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ060-042200-
/O.NEW.KSGX.HZ.W.0002.200205T0200Z-200205T1800Z/
/O.EXT.KSGX.HZ.W.0001.000000T0000Z-200204T1800Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
500 AM PST Tue Feb 4 2020

...HARD FREEZE WARNING NOW IN EFFECT UNTIL 10 AM PST THIS
MORNING...
...HARD FREEZE WARNING IN EFFECT FROM 6 PM THIS EVENING TO 10 AM
PST WEDNESDAY...

* WHAT...For the Hard Freeze Warning this morning, sub-freezing
  temperatures as low as 20. For the Hard Freeze Warning tonight,
  sub- freezing temperatures as low as 21 expected.

* WHERE...Apple and Lucerne Valleys.

* WHEN...For the Hard Freeze Warning this morning, until 10 AM PST
  this morning. For the Hard Freeze Warning tonight, from 6 PM 
  this evening to 10 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ050-042200-
/O.NEW.KSGX.FZ.W.0002.200205T0600Z-200205T1700Z/
/O.EXT.KSGX.FZ.W.0001.000000T0000Z-200204T1700Z/
San Diego County Valleys-
Including the cities of Escondido, El Cajon, San Marcos, La Mesa,
Santee, and Poway
500 AM PST Tue Feb 4 2020

...FREEZE WARNING NOW IN EFFECT UNTIL 9 AM PST THIS MORNING...
...FREEZE WARNING IN EFFECT FROM 10 PM THIS EVENING TO 9 AM PST
WEDNESDAY...

* WHAT...For the Freeze Warning this morning, sub-freezing
  temperatures as low as 35. For the Freeze Warning tonight, sub-
  freezing temperatures as low as 28 expected.

* WHERE...San Diego County Valleys.

* WHEN...For the Freeze Warning this morning, until 9 AM PST this
  morning. For the Freeze Warning tonight, from 10 PM this 
  evening to 9 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other
  sensitive vegetation and possibly damage unprotected outdoor
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ057-554-042200-
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
Santa Ana Mountains and Foothills-Orange County Inland Areas-
Including the city of Mission Viejo
500 AM PST Tue Feb 4 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...

* WHAT...For inland Orange County, northeast winds 20 to 30 mph,
  with gusts to 50 mph. For the mountains and foothills, north to
  northeast winds 25 to 35 mph with gusts up to 65 mph.

* WHERE...Santa Ana Mountains and Foothills and Orange County 
  Inland Areas. Strongest on south and southwest facing slopes.

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Tree limbs could be blown down and a few power 
  outages may result. Difficult travel at times for high profile 
  vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ055-042200-
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear Lake,
and Running Springs
500 AM PST Tue Feb 4 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...

* WHAT...North to northeast winds 25 to 35 mph with gusts up to 
  60 mph along the coastal slopes and 10 to 15 mph with gusts up 
  to 30 mph elsewhere. The wind, in combination with low 
  temperatures in the single digits, will result in wind chill 
  readings from 0 to 10 -degrees across most areas.

* WHERE...San Bernardino County Mountains.

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Tree limbs could be blown down and a few power 
  outages may result. Difficult travel at times for high profile 
  vehicles. Frostbite could occur on unprotected skin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

APR

For more information from the National Weather Service visit
http://weather.gov/sandiego
252 
WWUS76 KSGX 042056
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
1256 PM PST Tue Feb 4 2020

CAZ048-050600-
/O.CON.KSGX.FZ.W.0002.200205T0600Z-200205T1700Z/
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
1256 PM PST Tue Feb 4 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
9 AM PST WEDNESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 23 degrees expected. For the Wind Advisory, northeast winds
  15 to 25 mph with gusts to 45 mph.

* WHERE...San Bernardino and Riverside County Valleys-The Inland
  Empire. Coldest temperatures in southeastern Inland Empire.

* WHEN...For the Freeze Warning, from 10 PM this evening to 9 AM 
  PST Wednesday. For the Wind Advisory, until 9 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing. Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ060-050600-
/O.CON.KSGX.HZ.W.0002.200205T0200Z-200205T1800Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
1256 PM PST Tue Feb 4 2020

...HARD FREEZE WARNING REMAINS IN EFFECT FROM 6 PM THIS EVENING
TO 10 AM PST WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 17 degrees expected.

* WHERE...Apple and Lucerne Valleys. Coldest along and west of
  Highway 247. 

* WHEN...From 6 PM this evening to 10 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ050-050600-
/O.CON.KSGX.FZ.W.0002.200205T0600Z-200205T1700Z/
San Diego County Valleys-
Including the cities of Escondido, El Cajon, San Marcos, La Mesa,
Santee, and Poway
1256 PM PST Tue Feb 4 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
9 AM PST WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 24 expected.

* WHERE...San Diego County Valleys. Coldest in the Ramona Valley,
  near the foothills, and near creeks and riverbeds.

* WHEN...From 10 PM this evening to 9 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ061-062-050600-
/O.CON.KSGX.FZ.W.0002.200205T0800Z-200205T1600Z/
Coachella Valley-San Diego County Deserts-
Including the cities of Indio, Coachella, and Borrego Springs
1256 PM PST Tue Feb 4 2020

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
PST WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...San Diego County Deserts and Coachella Valley. Coldest
  south of Indio. 

* WHEN...From midnight tonight to 8 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ057-554-050600-
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
Santa Ana Mountains and Foothills-Orange County Inland Areas-
Including the city of Mission Viejo
1256 PM PST Tue Feb 4 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...

* WHAT...Northeast winds 15 to 25 mph with gusts to 45 mph.
  Localized gusts to 55 mph possible in the canyons of the Santa
  Ana Mountains.

* WHERE...Santa Ana Mountains and Foothills and Orange County
  Inland Areas.

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ055-050600-
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear Lake,
and Running Springs
1256 PM PST Tue Feb 4 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...

* WHAT...North winds 15 to 25 mph with gusts to 45 mph.

* WHERE...San Bernardino County Mountains. Strongest on southwest
  facing slopes downwind of ridgeline. 

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

Rodriguez

For more information from the National Weather Service visit
http://weather.gov/sandiego
470 
WWUS76 KSGX 050500
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
900 PM PST Tue Feb 4 2020

CAZ048-051300-
/O.CON.KSGX.FZ.W.0002.200205T0600Z-200205T1700Z/
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Riverside, San Bernardino, Ontario, 
Moreno Valley, Fontana, Rancho Cucamonga, and Corona
900 PM PST Tue Feb 4 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...
...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
9 AM PST WEDNESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 23 degrees expected. For the Wind Advisory, northeast 
  winds 15 to 25 mph with gusts to 45 mph.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire. Coldest temperatures in southeastern Inland Empire.

* WHEN...For the Freeze Warning, from 10 PM this evening to 9 AM 
  PST Wednesday. For the Wind Advisory, until 9 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing. Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ060-051300-
/O.CON.KSGX.HZ.W.0002.000000T0000Z-200205T1800Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
900 PM PST Tue Feb 4 2020

...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM PST
WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 17 degrees expected.

* WHERE...Apple and Lucerne Valleys. Coldest along and west of 
  Highway 247.

* WHEN...From 6 PM this evening to 10 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ050-051300-
/O.CON.KSGX.FZ.W.0002.200205T0600Z-200205T1700Z/
San Diego County Valleys-
Including the cities of Escondido, El Cajon, San Marcos, La Mesa,
Santee, and Poway
900 PM PST Tue Feb 4 2020

...FREEZE WARNING REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
9 AM PST WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 24 expected.

* WHERE...San Diego County Valleys. Coldest in the Ramona 
  Valley, near the foothills, and near creeks and riverbeds.

* WHEN...From 10 PM this evening to 9 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ061-062-051300-
/O.CON.KSGX.FZ.W.0002.200205T0800Z-200205T1600Z/
Coachella Valley-San Diego County Deserts-
Including the cities of Indio, Coachella, and Borrego Springs
900 PM PST Tue Feb 4 2020

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
PST WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 29 expected.

* WHERE...San Diego County Deserts and Coachella Valley. Coldest 
  south of Indio.

* WHEN...From midnight tonight to 8 AM PST Wednesday.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ057-554-051300-
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
Santa Ana Mountains and Foothills-Orange County Inland Areas-
Including the city of Mission Viejo
900 PM PST Tue Feb 4 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...

* WHAT...Northeast winds 15 to 25 mph with gusts to 45 mph. 

* WHERE...Santa Ana Mountains and Foothills and Orange County 
  Inland Areas.

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

CAZ055-051300-
/O.CON.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino County Mountains-
Including the cities of Crestline, Lake Arrowhead, Big Bear Lake,
and Running Springs
900 PM PST Tue Feb 4 2020

...WIND ADVISORY REMAINS IN EFFECT UNTIL 9 AM PST WEDNESDAY...

* WHAT...North winds 15 to 25 mph with gusts to 45 mph. Cold wind
  chills near zero overnight.

* WHERE...San Bernardino County Mountains. Strongest on 
  southwest facing slopes downwind of ridgeline.

* WHEN...Until 9 AM PST Wednesday.

* IMPACTS...Gusty winds could blow around unsecured objects. 
  Tree limbs could be blown down and a few power outages may 
  result.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Use extra caution when driving, especially if operating a high
profile vehicle. Secure outdoor objects.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego
960 
WWUS76 KSGX 051141
NPWSGX

URGENT - WEATHER MESSAGE
National Weather Service SAN DIEGO CA
341 AM PST Wed Feb 5 2020

CAZ048-051700-
/O.CAN.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
/O.CON.KSGX.FZ.W.0002.000000T0000Z-200205T1700Z/
San Bernardino and Riverside County Valleys-The Inland Empire-
Including the cities of Ontario, Moreno Valley, Rancho Cucamonga,
and Corona-
341 AM PST Wed Feb 5 2020

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...
...WIND ADVISORY IS CANCELLED...

* WHAT...Sub-freezing temperatures as low as 25.

* WHERE...San Bernardino and Riverside County Valleys-The Inland 
  Empire.

* WHEN...Until 9 AM PST this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ554-051600-
/O.CAN.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
/O.NEW.KSGX.FR.Y.0001.200205T1141Z-200205T1600Z/
Orange County Inland Areas-
341 AM PST Wed Feb 5 2020

...FROST ADVISORY IN EFFECT UNTIL 8 AM PST THIS MORNING...
...WIND ADVISORY IS CANCELLED...

* WHAT...Temperatures as low as 34 will result in frost 
  formation.

* WHERE...Orange County Inland Areas.

* WHEN...Until 8 AM PST this morning.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ055-057-051245-
/O.CAN.KSGX.WI.Y.0004.000000T0000Z-200205T1700Z/
San Bernardino County Mountains-Santa Ana Mountains and Foothills-
341 AM PST Wed Feb 5 2020

...WIND ADVISORY IS CANCELLED...

Locally gusty north to northeast winds near the coastal slopes of
the mountains will diminish this afternoon.

$$

CAZ060-051800-
/O.CON.KSGX.HZ.W.0002.000000T0000Z-200205T1800Z/
Apple and Lucerne Valleys-
Including the cities of Victorville, Hesperia, and Apple Valley
341 AM PST Wed Feb 5 2020

...HARD FREEZE WARNING REMAINS IN EFFECT UNTIL 10 AM PST THIS
MORNING...

* WHAT...Sub-freezing temperatures as low as 20.

* WHERE...Apple and Lucerne Valleys.

* WHEN...Until 10 AM PST this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing.

&&

$$

CAZ050-051700-
/O.CON.KSGX.FZ.W.0002.000000T0000Z-200205T1700Z/
San Diego County Valleys-
Including the cities of Escondido, El Cajon, San Marcos, Santee, 
and Poway
341 AM PST Wed Feb 5 2020

...FREEZE WARNING REMAINS IN EFFECT UNTIL 9 AM PST THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 27.

* WHERE...San Diego County Valleys.

* WHEN...Until 9 AM PST this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ061-062-051600-
/O.CON.KSGX.FZ.W.0002.000000T0000Z-200205T1600Z/
Coachella Valley-San Diego County Deserts-
Including the cities of Indio, Coachella, and Borrego Springs
341 AM PST Wed Feb 5 2020

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING...

* WHAT...Sub-freezing temperatures as low as 26.

* WHERE...San Diego County Deserts and Coachella Valley.

* WHEN...Until 8 AM PST this morning.

* IMPACTS...Frost and freeze conditions will kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold. To prevent
freezing and possible bursting of outdoor water pipes they should
be wrapped, drained, or allowed to drip slowly. Those that have
in-ground sprinkler systems should drain them and cover above-
ground pipes to protect them from freezing

&&

$$

CAZ043-051600-
/O.NEW.KSGX.FR.Y.0001.200205T1141Z-200205T1600Z/
San Diego County Coastal Areas-
Including the city of Vista
341 AM PST Wed Feb 5 2020

...FROST ADVISORY IN EFFECT UNTIL 8 AM PST THIS MORNING...

* WHAT...Temperatures as low as 31 will result in frost 
  formation.

* WHERE...San Diego County Coastal Areas.

* WHEN...Until 8 AM PST this morning.

* IMPACTS...Frost could kill sensitive outdoor vegetation if 
  left uncovered.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

For more information from the National Weather Service visit
http://weather.gov/sandiego

17

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 3, 4:15 AM PSTHigh Wind WatchSGXOrange, Riverside, San Bernardino, San Diego9 hr
Feb 3, 12:05 PM PSTSmall Craft AdvisorySGX24 hr
Feb 3, 12:59 PM PSTFreeze WarningSGXRiverside, San Bernardino, San Diego20 hr
Feb 3, 12:59 PM PSTHard Freeze WarningSGXSan Bernardino21 hr

Nearby

Wind Advisories in California, 2020Every wind advisory in 2020

Sources

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