Alert archive / California / Wind Advisories in 2023

Wind Advisory 10, NWS San Francisco Bay Area, CA

February 11, 20236 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Feb 11, 2023, 12:32 PM PST for 6 counties in California. It took effect at Feb 13, 2023, 10:00 AM PST. It was in force for 33 hr.

The area

The counties it named.

The facts

Issued
Feb 11, 2023, 12:32 PM PST (20:32 UTC)
In effect from
Feb 13, 2023, 10:00 AM PST
Expired
Feb 14, 2023, 7:00 PM PST
In force
33 hr
Issued by
NWS San Francisco Bay Area, CA

Counties City and County of San Francisco, CA, Marin County, CA, Monterey County, CA, San Mateo County, CA, Santa Cruz County, CA, Sonoma County, CA

The radar

The San Francisco radar (KMUX), 53 km from the middle of the area, began a volume at 20:36 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

Oakland, CA (KOAK), launched 12:00Z, 8.5 hours before the alert went out and 26 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, Oakland, CA at 12:00Z on 2023-02-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 34 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, Oakland, CA at 12:00Z on 2023-02-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 27 square meters per square second.193958Sfc1 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
34 J/kg
Mixed-layer CIN
0 J/kg
Mixed-layer LCL
537 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
27 m²/s²
0-3 km storm-relative helicity
51 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

732 
WWUS76 KMTR 112032
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1232 PM PST Sat Feb 11 2023

CAZ006-502-505-509-517-530-121200-
/O.NEW.KMTR.WI.Y.0010.230213T2100Z-230214T1400Z/
San Francisco-Marin Coastal Range-
Coastal North Bay...Including Point Reyes National Seashore-
San Francisco Peninsula Coast-
Santa Lucia Mountains and Los Padres National Forest-
Southern Monterey Bay and Big Sur Coast-
1232 PM PST Sat Feb 11 2023

...WIND ADVISORY IN EFFECT FROM 1 PM MONDAY TO 6 AM PST TUESDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph
  expected. Strongest gusts will be along the coastline and over
  coastal mountains.

* WHERE...North Bay coast and coastal mountains, coastal areas of
  San Francisco & the San Francisco Peninsula, portions of
  Monterey County including the southern Monterey Bay/Monterey
  Peninsula...Big Sur Coast...Santa Lucia Mountains...Los Padres
  National Forest.

* WHEN...From 1 PM Monday to 6 AM PST Tuesday.

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


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
https://weather.gov/mtr
9 follow-up statements
091 
WWUS76 KMTR 121112
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
312 AM PST Sun Feb 12 2023

CAZ006-502-505-509-122300-
/O.EXT.KMTR.WI.Y.0010.230213T1800Z-230214T1400Z/
San Francisco-Marin Coastal Range-
Coastal North Bay...Including Point Reyes National Seashore-
San Francisco Peninsula Coast-
312 AM PST Sun Feb 12 2023

...WIND ADVISORY NOW IN EFFECT FROM 10 AM MONDAY TO 6 AM PST
TUESDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...San Francisco, Marin Coastal Range, Coastal North Bay, 
  Including Point Reyes National Seashore and San Francisco 
  Peninsula Coast.

* WHEN...From 10 AM Monday to 6 AM PST Tuesday.

* 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.

&&

$$

CAZ517-530-122300-
/O.EXT.KMTR.WI.Y.0010.230214T0000Z-230215T0300Z/
Santa Lucia Mountains and Los Padres National Forest-
Southern Monterey Bay and Big Sur Coast-
312 AM PST Sun Feb 12 2023

...WIND ADVISORY NOW IN EFFECT FROM 4 PM MONDAY TO 7 PM PST
TUESDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Santa Lucia Mountains and Los Padres National Forest 
  and Southern Monterey Bay and Big Sur Coast.

* WHEN...From 4 PM Monday to 7 PM PST Tuesday.

* 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
https://weather.gov/mtr
359 
WWUS76 KMTR 122143
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
143 PM PST Sun Feb 12 2023

CAZ006-502-505-509-131200-
/O.CON.KMTR.WI.Y.0010.230213T1800Z-230214T1400Z/
San Francisco-Marin Coastal Range-
Coastal North Bay...Including Point Reyes National Seashore-
San Francisco Peninsula Coast-
143 PM PST Sun Feb 12 2023

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM MONDAY TO 6 AM PST
TUESDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 50 mph 
  expected.

* WHERE...San Francisco, Marin Coastal Range, Coastal North Bay, 
  Including Point Reyes National Seashore and San Francisco 
  Peninsula Coast.

* WHEN...From 10 AM Monday to 6 AM PST Tuesday.

* 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.

&&

$$

CAZ517-530-131200-
/O.CON.KMTR.WI.Y.0010.230214T0000Z-230215T0300Z/
Santa Lucia Mountains and Los Padres National Forest-
Southern Monterey Bay and Big Sur Coast-
143 PM PST Sun Feb 12 2023

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM MONDAY TO 7 PM PST
TUESDAY...

* WHAT...Northwest winds 20 to 30 mph with gusts up to 45 mph 
  expected.

* WHERE...Santa Lucia Mountains and Los Padres National Forest 
  and Southern Monterey Bay and Big Sur Coast.

* WHEN...From 4 PM Monday to 7 PM PST Tuesday.

* 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
https://weather.gov/mtr
177 
WWUS76 KMTR 130938
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
138 AM PST Mon Feb 13 2023

CAZ006-502-505-509-132300-
/O.NEW.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
/O.CON.KMTR.WI.Y.0010.230213T1800Z-230214T1400Z/
San Francisco-Marin Coastal Range-
Coastal North Bay...Including Point Reyes National Seashore-
San Francisco Peninsula Coast-
138 AM PST Mon Feb 13 2023

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
6 AM PST TUESDAY...
...FREEZE WATCH IN EFFECT FROM 2 AM WEDNESDAY TO 9 AM WEDNESDAY 
MORNING...

* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with
  gusts up to 50 mph expected. For the Freeze Watch, near freezing
  to sub-freezing temperatures as low as 30 to 38.

* WHERE...San Francisco, Marin Coastal Range, Coastal North Bay, 
  Including Point Reyes National Seashore and San Francisco 
  Peninsula Coast.

* WHEN...For the Wind Advisory, from 10 AM this morning to 6 AM
  PST Tuesday. For the Freeze Watch, from 2 am Wednesday to 9 am
  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 impact unsheltered and
  marginally sheltered populations, 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.

&&

$$

CAZ517-530-132300-
/O.NEW.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
/O.CON.KMTR.WI.Y.0010.230214T0000Z-230215T0300Z/
Santa Lucia Mountains and Los Padres National Forest-
Southern Monterey Bay and Big Sur Coast-
138 AM PST Mon Feb 13 2023

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 PM PST TUESDAY...
...FREEZE WATCH IN EFFECT FROM 2 AM WEDNESDAY TO 9 AM WEDNESDAY 
MORNING...

* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph 
  with gusts up to 45 mph expected. For the Freeze Watch, sub-
  freezing temperatures as low as 30 possible.

* WHERE...Santa Lucia Mountains and Los Padres National Forest 
  and Southern Monterey Bay and Big Sur Coast.

* WHEN...For the Wind Advisory, from 4 PM this afternoon to 7 PM
  PST Tuesday. For the Freeze Watch, from 2 am Wednesday to 9 am
  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 impact unsheltered and
  marginally sheltered populations, 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.

&&

$$

CAZ503-504-506-508-510-512>516-518-528-529-132300-
/O.NEW.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
Sonoma Coastal Range-North Bay Interior Mountains-
North Bay Interior Valleys-San Francisco Bay Shoreline-
East Bay Interior Valleys-Santa Cruz Mountains-
Santa Clara Valley...including San Jose-Eastern Santa Clara Hills-
East Bay Hills-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
Northern Monterey Bay-
138 AM PST Mon Feb 13 2023

...FREEZE WATCH IN EFFECT FROM 2 AM WEDNESDAY TO 9 AM WEDNESDAY 
MORNING...

* WHAT...Sub-freezing temperatures as low as 30 possible, except
  colder in the mid to upper 20s interior valleys.

* WHERE...Portions of California. 

* WHEN...From 2 am Wednesday to 9 am Wednesday.

* IMPACTS...Frost and freeze conditions will impact unsheltered
  and marginally sheltered populations, 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.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/mtr
061 
WWUS76 KMTR 132114
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
114 PM PST Mon Feb 13 2023

CAZ006-502-505-509-140600-
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230214T1400Z/
/O.CON.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
San Francisco-Marin Coastal Range-
Coastal North Bay...Including Point Reyes National Seashore-
San Francisco Peninsula Coast-
114 PM PST Mon Feb 13 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph 
  with gusts up to 55 mph. For the Freeze Watch, sub-freezing 
  temperatures as low as 33 possible.

* WHERE...San Francisco, Marin Coastal Range, Coastal North Bay, 
  Including Point Reyes National Seashore and San Francisco 
  Peninsula Coast.

* WHEN...For the Wind Advisory, until 6 AM PST Tuesday. For the 
  Freeze Watch, from late Tuesday night through Wednesday 
  morning.

* 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 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.

&&

$$

CAZ517-530-140600-
/O.CON.KMTR.WI.Y.0010.230214T0000Z-230215T0300Z/
/O.CON.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
Santa Lucia Mountains and Los Padres National Forest-
Southern Monterey Bay and Big Sur Coast-
114 PM PST Mon Feb 13 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST TUESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph 
  with gusts up to 50 mph expected. For the Freeze Watch, sub-
  freezing temperatures as low as 29 possible.

* WHERE...Santa Lucia Mountains and Los Padres National Forest 
  and Southern Monterey Bay and Big Sur Coast.

* WHEN...For the Wind Advisory, until 7 PM PST Tuesday. For the 
  Freeze Watch, from late Tuesday night through Wednesday 
  morning.

* 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 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.

&&

$$

CAZ503-504-506-508-510-512>516-518-528-529-140600-
/O.CON.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
Sonoma Coastal Range-North Bay Interior Mountains-
North Bay Interior Valleys-San Francisco Bay Shoreline-
East Bay Interior Valleys-Santa Cruz Mountains-
Santa Clara Valley...including San Jose-Eastern Santa Clara Hills-
East Bay Hills-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
Northern Monterey Bay-
114 PM PST Mon Feb 13 2023

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

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

* WHERE...Portions of California. 

* WHEN...From late Tuesday night 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.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/mtr
883 
WWUS76 KMTR 140526
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
926 PM PST Mon Feb 13 2023

CAZ006-502-505-509-141400-
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230214T1400Z/
/O.CON.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
San Francisco-Marin Coastal Range-
Coastal North Bay...Including Point Reyes National Seashore-
San Francisco Peninsula Coast-
926 PM PST Mon Feb 13 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph with
  gusts up to 55 mph. For the Freeze Watch, sub-freezing
  temperatures as low as 32 possible.

* WHERE...San Francisco, Marin Coastal Range, Coastal North Bay, 
  Including Point Reyes National Seashore and San Francisco 
  Peninsula Coast.

* WHEN...For the Wind Advisory, until 6 AM PST Tuesday. For the 
  Freeze Watch, from late Tuesday night through Wednesday 
  morning.

* 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 could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing. Cold temperatures will impact unsheltered and 
  marginally sheltered populations.

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.

&&

$$

CAZ517-530-141400-
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
/O.CON.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
Santa Lucia Mountains and Los Padres National Forest-
Southern Monterey Bay and Big Sur Coast-
926 PM PST Mon Feb 13 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST TUESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

* WHAT...For the Wind Advisory, northwest winds 25 to 35 mph 
  with gusts up to 50 mph expected. For the Freeze Watch, sub- 
  freezing temperatures as low as 29 possible.

* WHERE...Santa Lucia Mountains and Los Padres National Forest 
  and Southern Monterey Bay and Big Sur Coast.

* WHEN...For the Wind Advisory, until 7 PM PST Tuesday. For the 
  Freeze Watch, from late Tuesday night through Wednesday 
  morning.

* 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 could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing. Cold temperatures will impact unsheltered and 
  marginally sheltered populations.

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.

&&

$$

CAZ503-504-506-508-510-512>516-518-528-529-141400-
/O.CON.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
Sonoma Coastal Range-North Bay Interior Mountains-
North Bay Interior Valleys-San Francisco Bay Shoreline-
East Bay Interior Valleys-Santa Cruz Mountains-
Santa Clara Valley...including San Jose-Eastern Santa Clara Hills-
East Bay Hills-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
Northern Monterey Bay-
926 PM PST Mon Feb 13 2023

...FREEZE WATCH REMAINS IN EFFECT FROM LATE TUESDAY NIGHT THROUGH
WEDNESDAY MORNING...

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

* WHERE...Interior portions of the greater San Francisco Bay Area
  and Central Coast. 

* WHEN...From late Tuesday night through Wednesday morning.

* IMPACTS...Frost and freeze conditions could kill crops, other 
  sensitive vegetation and possibly damage unprotected outdoor 
  plumbing. Cold temperatures will impact unsheltered and 
  marginally sheltered populations.

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.

&&

$$

For more information from the National Weather Service visit
https://weather.gov/mtr
009 
WWUS76 KMTR 141025
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
225 AM PST Tue Feb 14 2023

CAZ502-505-141830-
/O.CAN.KMTR.WI.Y.0010.000000T0000Z-230214T1400Z/
/O.UPG.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
/O.NEW.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
Marin Coastal Range-
Coastal North Bay...Including Point Reyes National Seashore-
225 AM PST Tue Feb 14 2023

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY...
...WIND ADVISORY IS CANCELLED...

* WHAT...Low temperatures of 32 to 36 degrees will result in 
  frost formation.

* WHERE...Marin Coastal Range and Coastal North Bay, Including 
  Point Reyes National Seashore.

* WHEN...From 2 AM to 9 AM PST Wednesday.

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



PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ006-509-141130-
/O.CAN.KMTR.WI.Y.0010.000000T0000Z-230214T1400Z/
/O.CAN.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
San Francisco-San Francisco Peninsula Coast-
225 AM PST Tue Feb 14 2023

...WIND ADVISORY IS CANCELLED...
...FREEZE WATCH IS CANCELLED...

Breezy conditions with gusts up to 35 mph will be possible through
early this morning. 

$$

CAZ508-141130-
/O.CAN.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
San Francisco Bay Shoreline-
225 AM PST Tue Feb 14 2023

...FREEZE WATCH IS CANCELLED...


$$

CAZ517-141830-
/O.UPG.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
/O.NEW.KMTR.FZ.W.0005.230215T1000Z-230215T1700Z/
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
Santa Lucia Mountains and Los Padres National Forest-
225 AM PST Tue Feb 14 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...
...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Wind Advisory, northwest winds 25 
  to 35 mph with gusts up to 50 mph.

* WHERE...Santa Lucia Mountains and Los Padres National Forest.

* WHEN...For the Freeze Warning, from 2 AM to 9 AM PST 
  Wednesday. For the Wind Advisory, until 7 PM PST this evening.

* 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.

&&

$$

CAZ506-513>516-518-528-141830-
/O.UPG.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
/O.NEW.KMTR.FZ.W.0005.230215T1000Z-230215T1700Z/
North Bay Interior Valleys-
Santa Clara Valley...including San Jose-Eastern Santa Clara Hills-
East Bay Hills-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
225 AM PST Tue Feb 14 2023

...FREEZE WARNING IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...North Bay Interior Valleys, Santa Clara Valley, Eastern
  Santa Clara Hills, East Bay Hills, Southern Salinas Valley,
  Mountains of San Benito and Interior Monterey County, Northern
  Salinas Valley. 

* WHEN...From 2 AM 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.

&&

$$

CAZ530-141830-
/O.UPG.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
/O.NEW.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
Southern Monterey Bay and Big Sur Coast-
225 AM PST Tue Feb 14 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...
...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph with
  gusts up to 50 mph. For the Frost Advisory, Low temperatures of
  32 to 36 degrees will result in frost formation.

* WHERE...Southern Monterey Bay and Big Sur Coast.

* WHEN...For the Wind Advisory, until 7 PM PST this evening. For 
  the Frost Advisory, from 2 AM to 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 could kill sensitive outdoor vegetation if left 
  uncovered.

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.

&&

$$

CAZ503-504-510-512-529-141830-
/O.UPG.KMTR.FZ.A.0003.230215T1000Z-230215T1700Z/
/O.NEW.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
Sonoma Coastal Range-North Bay Interior Mountains-
East Bay Interior Valleys-Santa Cruz Mountains-
Northern Monterey Bay-
225 AM PST Tue Feb 14 2023

...FROST ADVISORY IN EFFECT FROM 2 AM TO 9 AM PST WEDNESDAY...

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

* WHERE...Sonoma Coastal Range, North Bay Interior Mountains, 
  East Bay Interior Valleys, Santa Cruz Mountains and Northern 
  Monterey Bay.

* WHEN...From 2 AM to 9 AM PST Wednesday.

* 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
https://weather.gov/mtr
939 
WWUS76 KMTR 141705
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
905 AM PST Tue Feb 14 2023

CAZ517-150115-
/O.CON.KMTR.FZ.W.0005.230215T1000Z-230215T1700Z/
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
Santa Lucia Mountains and Los Padres National Forest-
905 AM PST Tue Feb 14 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Wind Advisory, northwest winds 25 
  to 35 mph with gusts up to 50 mph.

* WHERE...Santa Lucia Mountains and Los Padres National Forest.

* WHEN...For the Freeze Warning, from 2 AM to 9 AM PST 
  Wednesday. For the Wind Advisory, until 7 PM PST this evening.

* 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.

&&

$$

CAZ506-513>516-518-528-150115-
/O.CON.KMTR.FZ.W.0005.230215T1000Z-230215T1700Z/
North Bay Interior Valleys-
Santa Clara Valley...including San Jose-Eastern Santa Clara Hills-
East Bay Hills-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
905 AM PST Tue Feb 14 2023

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* WHAT...Sub-freezing temperatures as low as 28 expected.

* WHERE...North Bay Interior Valleys, Santa Clara Valley, 
  Eastern Santa Clara Hills, East Bay Hills, Southern Salinas 
  Valley, Mountains of San Benito and Interior Monterey County, 
  Northern Salinas Valley.

* WHEN...From 2 AM 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.

&&

$$

CAZ530-150115-
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
/O.CON.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
Southern Monterey Bay and Big Sur Coast-
905 AM PST Tue Feb 14 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...
...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph 
  with gusts up to 50 mph. For the Frost Advisory, Low 
  temperatures of 32 to 36 degrees will result in frost 
  formation.

* WHERE...Southern Monterey Bay and Big Sur Coast.

* WHEN...For the Wind Advisory, until 7 PM PST this evening. For 
  the Frost Advisory, from 2 AM to 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 could kill sensitive outdoor vegetation if left 
  uncovered.

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.

&&

$$

CAZ502>505-510-512-529-150115-
/O.CON.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
Marin Coastal Range-Sonoma Coastal Range-
North Bay Interior Mountains-
Coastal North Bay...Including Point Reyes National Seashore-
East Bay Interior Valleys-Santa Cruz Mountains-
Northern Monterey Bay-
905 AM PST Tue Feb 14 2023

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* WHAT...Low temperatures of 32 to 36 degrees will result in 
  frost formation.

* WHERE...Marin Coastal Range and Coastal North Bay, Including 
  Point Reyes National Seashore.

* WHEN...From 2 AM to 9 AM PST Wednesday.

* 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
https://weather.gov/mtr
344 
WWUS76 KMTR 142034
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1234 PM PST Tue Feb 14 2023

CAZ517-150445-
/O.NEW.KMTR.FZ.A.0004.230216T1000Z-230216T1700Z/
/O.CON.KMTR.FZ.W.0005.230215T1000Z-230215T1700Z/
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
Santa Lucia Mountains and Los Padres National Forest-
1234 PM PST Tue Feb 14 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...
...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...
...FREEZE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Wind Advisory, northwest winds 20 
  to 30 mph with gusts up to 45 mph. For the Freeze Watch, sub- 
  freezing temperatures as low as 32 possible.

* WHERE...Santa Lucia Mountains and Los Padres National Forest.

* WHEN...For the Freeze Warning, from 2 AM to 9 AM PST 
  Wednesday. For the Wind Advisory, until 7 PM PST this evening. 
  For the Freeze Watch, from late Wednesday night through 
  Thursday morning.

* 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.

&&

$$

CAZ506-513>516-518-528-150445-
/O.NEW.KMTR.FZ.A.0004.230216T1000Z-230216T1700Z/
/O.CON.KMTR.FZ.W.0005.230215T1000Z-230215T1700Z/
North Bay Interior Valleys-
Santa Clara Valley...including San Jose-Eastern Santa Clara Hills-
East Bay Hills-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
1234 PM PST Tue Feb 14 2023

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...
...FREEZE WATCH IN EFFECT FROM LATE WEDNESDAY NIGHT THROUGH
THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 29 expected. For the Freeze Watch, sub-freezing 
  temperatures as low as 31 possible.

* WHERE...Portions of California. 

* WHEN...For the Freeze Warning, from 2 AM to 9 AM PST 
  Wednesday. For the Freeze Watch, from late Wednesday night 
  through Thursday 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.

&&

$$

CAZ530-150445-
/O.CON.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
/O.CON.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
Southern Monterey Bay and Big Sur Coast-
1234 PM PST Tue Feb 14 2023

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 PM PST THIS EVENING...
...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* WHAT...For the Wind Advisory, northwest winds 20 to 30 mph 
  with gusts up to 50 mph. For the Frost Advisory, Low 
  temperatures of 32 to 36 degrees will result in frost 
  formation.

* WHERE...Southern Monterey Bay and Big Sur Coast.

* WHEN...For the Wind Advisory, until 7 PM PST this evening. For 
  the Frost Advisory, from 2 AM to 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 could kill sensitive outdoor vegetation if left 
  uncovered.

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.

&&

$$

CAZ502>505-510-512-529-150445-
/O.CON.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
Marin Coastal Range-Sonoma Coastal Range-
North Bay Interior Mountains-
Coastal North Bay...Including Point Reyes National Seashore-
East Bay Interior Valleys-Santa Cruz Mountains-
Northern Monterey Bay-
1234 PM PST Tue Feb 14 2023

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* WHAT...Low temperatures of 32 to 36 degrees will result in 
  frost formation.

* WHERE...Marin Coastal Range and Coastal North Bay, Including 
  Point Reyes National Seashore.

* WHEN...From 2 AM to 9 AM PST Wednesday.

* 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
https://weather.gov/mtr
728 
WWUS76 KMTR 150303
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
703 PM PST Tue Feb 14 2023

CAZ517-151400-
/O.EXP.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
/O.CON.KMTR.FZ.W.0005.230215T1000Z-230215T1700Z/
/O.CON.KMTR.FZ.A.0004.230216T1000Z-230216T1700Z/
Santa Lucia Mountains and Los Padres National Forest-
703 PM PST Tue Feb 14 2023

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 30 expected. For the Freeze Watch, sub-freezing 
  temperatures as low as 32 possible.

* WHERE...Santa Lucia Mountains and Los Padres National Forest.

* WHEN...For the Freeze Warning, from 2 AM to 9 AM PST Wednesday
  morning. For the Freeze Watch, from late Wednesday night 
  through Thursday 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.

&&

$$

CAZ530-151400-
/O.EXP.KMTR.WI.Y.0010.000000T0000Z-230215T0300Z/
/O.CON.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
Southern Monterey Bay and Big Sur Coast-
703 PM PST Tue Feb 14 2023

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* WHAT...Temperatures as low as 32 will result in frost 
  formation.

* WHERE...Southern Monterey Bay and Big Sur Coast.

* WHEN...From 2 AM to 9 AM PST Wednesday morning.

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

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Take steps now to protect tender plants from the cold.

&&

$$

CAZ506-513>516-518-528-151400-
/O.CON.KMTR.FZ.W.0005.230215T1000Z-230215T1700Z/
/O.CON.KMTR.FZ.A.0004.230216T1000Z-230216T1700Z/
North Bay Interior Valleys-
Santa Clara Valley...including San Jose-Eastern Santa Clara Hills-
East Bay Hills-
Southern Salinas Valley...Arroyo Seco...and Lake San Antonio-
Mountains of San Benito and Interior Monterey County including
Pinnacles National Park-
Northern Salinas Valley...Hollister Valley...and Carmel Valley-
703 PM PST Tue Feb 14 2023

...FREEZE WARNING REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...
...FREEZE WATCH REMAINS IN EFFECT FROM LATE WEDNESDAY NIGHT
THROUGH THURSDAY MORNING...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 29 expected. For the Freeze Watch, sub-freezing 
  temperatures as low as 31 possible.

* WHERE...Portions of California.

* WHEN...For the Freeze Warning, from 2 AM to 9 AM PST Wednesday
  morning. For the Freeze Watch, from late Wednesday night 
  through Thursday 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.

&&

$$

CAZ502>505-510-512-529-151400-
/O.CON.KMTR.FR.Y.0005.230215T1000Z-230215T1700Z/
Marin Coastal Range-Sonoma Coastal Range-
North Bay Interior Mountains-
Coastal North Bay...Including Point Reyes National Seashore-
East Bay Interior Valleys-Santa Cruz Mountains-
Northern Monterey Bay-
703 PM PST Tue Feb 14 2023

...FROST ADVISORY REMAINS IN EFFECT FROM 2 AM TO 9 AM PST
WEDNESDAY...

* WHAT...Low temperatures of 32 to 36 degrees will result in 
  frost formation.

* WHERE...Marin Coastal Range and Coastal North Bay, Including 
  Point Reyes National Seashore.

* WHEN...From 2 AM to 9 AM PST Wednesday.

* 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
https://weather.gov/mtr

What forecasters said that day

The local office's own words before this wind advisory went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.

NWS San Francisco Bay Area, CA wrote its last area forecast discussion before this wind advisory went out at Feb 11, 9:29 AM PST, 3 hours 3 minutes earlier.

Area forecast discussion, Feb 11, 9:29 AM PST, 3 hours 3 minutes before
Area Forecast Discussion
National Weather Service San Francisco Bay Area
929 AM PST Sat Feb 11 2023

.SYNOPSIS...Light rain is forecast through morning, traveling
southward past the Central Coast. By tonight, the highest total
rain will be along the Big Sur Coast. Chilly morning lows through
the weekend, except on Sunday in the North Bay, where offshore
winds above 2000 feet will assist in keeping more mild low
temperatures. Drier conditions expected early next week before the
next chance for light rain and cold temperatures midweek.

&&

.DISCUSSION...as of 09:25 AM PST Saturday...On radar this
morning, it's very easy to see the center of the low due to the
rotation of this morning's showers. The low is currently centered
just west of San Jose as light showers spin counter-clockwise
around portions of the East Bay and SF Peninsula then over the
ocean and then swing back inland around the Monterey Bay region.
North Bay is fairly dry now as that low is tracking slowly
southward today although a few light showers are occasionally
hitting southern Marin County. Rain totals across North Bay from
this system were generally less than a tenth of an inch to around
a quarter of an inch along the coastal mountains.

Totals so far to the south have been generally around a third of
an inch down to a few hundredths, but a few locations in East Bay
where showers popped up are around a half inch and coastal areas
along the SF Peninsula have a few spots between 0.30" to 0.50".

Santa Cruz Mountains have seen up to around a third of an inch
while the Monterey Peninsula and Big Sur mountains have ranged
from a few hundredths up to around a third of an inch.

On and off showers will continue with the Monterey County
coastline likely getting the most of the rain today. We still have
mention of slight chance of thunderstorms for this afternoon.
Thus far, we haven't seen any lightning activity, but hi-res
models indicate that instability will be better by late morning
into afternoon.

High Surf Advisory remains in effect along most of the coast,
with a Beach Hazards Statement out for Northern Monterey Bay
(around Santa Cruz County beaches). Use caution if heading to the
coast today!

&&

.PREV DISCUSSION...as of 4:00 AM PST Saturday...Monitoring a low pressure
system over northern California, its center located over the Bay
Area and moving southward, undergoing strengthening i.e. lowering
500 mb heights (cooling) while surface pressures across the Bay
Area and north Central Coast are lowering ~ 0.5 mb to 1 mb per
hour. The low is cradled in a digging (southward moving) polar jet
stream.

Showers continue to develop in the cold core low with the highest
echo tops increasing to 15-17 thousand feet over the Bay Area. At
present, showers are producing less than 0.10" per hour, but may
become locally moderate to heavy. The cold core low, instability
aloft and westerly wind with a maritime influence (ocean effect
enhancement to the precipitation) will bring more precipitation
inland, however as the low moves southward so too will the area of
precipitation move southward from late morning to afternoon.
Freezing levels and wet bulb zero heights are low with this
system, varying mostly in the 2500 to 3000 feet range, this
supports snow across the highest coastal terrain, upwards of 2-4
inches over the highest elevations of the Santa Lucia Mountains/Big
Sur, with light accumulations over the Santa Cruz Mountains as
well. Currently it's 28F on Chews Ridge and 32F on Anderson Peak.
Highs today in the 50s lower elevations, 40s/30s at higher
elevations.

Dry northeasterly winds develop by tonight and continue Sunday in
the wake of the aforementioned low, compressional warming sending
850 mb temperatures back up resulting in milder daytime temps in
the 60s Sunday and Monday.

Then, the next downturn in temperatures arrives late Monday,
Monday night and Tuesday with gusty northerly winds at the onset
of cold air advection especially over the coastal waters, but with
coastal land overlap. Early yet for a high wind watch, but will
monitor subsequent forecasts especially for later Monday winds
along the coastal sections. Otherwise seeing deterministic,
ensemble agreement for a period of well below mid February normal
temperatures next week, by as much as 12 to 15 degrees below
normal, near record lows potentially mid to late next week. The
northerly flow mostly limiting chances of precipitation during the
cold frontal passage.

&&

.AVIATION...as of 9:20 AM Saturday...For the 18Z TAFs. Scattered
showers continue in the SF Bay Area down through the Monterey Bay
terminals and into southern Monterey County, with occasional MVFR
ceilings within the showers and even some IFR visibilities in the
most intense rain. The showers should clear form the SF Bay Area in
a couple of hours but may linger around Monterey Bay into the
afternoon, with a slight chance (15% probability) of thunderstorms
in western Monterey County. Then VFR predominates. Breezy winds will
pick up in a northeasterly pattern after the showers move out, with
winds diminishing overnight. Winds will pick up in a northwesterly
pattern again during the day on Sunday.

Vicinity of SFO...Predominantly VFR through the TAF period.
Scattered showers with MVFR ceilings through the next couple of
hours or so. Then winds pick up from the northeast topping out at
around 15 knots through the evening. Low confidence (20%
probability) in gusts above 20 knots. Winds diminish around 3-4z
this evening, then pick up again from the northwest on Sunday.

SFO Bridge Approach...Similar to SFO.

Monterey Bay...Predominantly VFR throughout the TAF period. Winds
generally light and variable today, with scattered showers and a 15%
chance of thunderstorms around the western half of Monterey County
through the afternoon. Drainage winds picking up overnight.

&&

.MARINE...as of 08:43 AM PST Saturday...Gale force gusts over the
outer waters through the day. Scattered showers pushing off to the
south by this evening with a slight  chance of thunderstorms over
the southern waters. Northerly winds  diminish into Sunday, but
remain breezy and increase again by  midweek. Large swell at
around 14 to 16 seconds creating large  breaking waves near the
surf zone through the evening. Another  long- period swell arrives
on Sunday.

&&

.MTR WATCHES/WARNINGS/ADVISORIES...
     .Tday...High Surf Advisory...CAZ006-505-509-530
             SCA...Mry Bay until 9 AM
             SCA...Pt Reyes to Pigeon Pt 0-10 nm until 9 AM
             SCA...Pigeon Pt to Pt Pinos 0-10 nm until 9 AM
             SCA...Pt Arena to Pt Reyes 0-10 nm
             SCA...Pt Pinos to Pt Piedras Blancas 0-10 nm until 3 PM
             GLW...Pt Arena to Pigeon Pt 10-60 nm
             GLW...Pigeon Pt to Pt Piedras Blancas 10-60 nm until 3 PM

&&

PUBLIC FORECAST: JBB
AVIATION: DialH
MARINE: DialH

Visit us at www.weather.gov/sanfrancisco

Follow us on Facebook, Twitter, and YouTube at:
www.facebook.com/nwsbayarea
www.twitter.com/nwsbayarea
www.youtube.com/nwsbayarea

The office that day

Everything else NWS San Francisco Bay Area, CA issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Feb 11, 2:31 AM PSTSmall Craft AdvisoryMTR60 hr
Feb 11, 2:34 PM PSTGale WatchMTR12 hr

Nearby

Wind Advisories in California, 2023Every wind advisory in 2023

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.