Alert archive / California / Wind Advisories in 2021

Wind Advisory 14, NWS San Francisco Bay Area, CA

December 11, 20218 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Dec 11, 2021, 12:58 PM PST for 8 counties in California. It took effect at Dec 12, 2021, 4:00 PM PST. It was in force for 24 hr.

The area

The counties it named.

The facts

Issued
Dec 11, 2021, 12:58 PM PST (20:58 UTC)
In effect from
Dec 12, 2021, 4:00 PM PST
Expired
Dec 13, 2021, 4:00 PM PST
In force
24 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Alameda County, CA, City and County of San Francisco, CA, Contra Costa County, CA, Monterey County, CA, San Benito County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA

The radar

The San Francisco radar (KMUX), 10 km from the middle of the area, began a volume at 20:56 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, 9.0 hours before the alert went out and 63 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 2021-12-11Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 0 joules per kilogram.LCL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Oakland, CA at 12:00Z on 2021-12-11The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -17 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1664 m above ground
0-6 km bulk shear
37 kt
0-1 km storm-relative helicity
-17 m²/s²
0-3 km storm-relative helicity
53 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

727 
WWUS76 KMTR 112058
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1258 PM PST Sat Dec 11 2021

CAZ006-508>513-529-120700-
/O.NEW.KMTR.WI.Y.0014.211213T0000Z-211213T1500Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
1258 PM PST Sat Dec 11 2021

...WIND ADVISORY IN EFFECT FROM 4 PM SUNDAY TO 7 AM PST MONDAY...

* WHAT...South winds 15 to 25 mph with gusts up to 55 mph 
  expected.

* WHERE...San Francisco Peninsula. East Bay. South Bay. And Santa
  Cruz.

* WHEN...From 4 PM Sunday to 7 AM PST Monday.

* 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.

&&

$$

CAZ516>518-528-530-120700-
/O.NEW.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Greenfield, King City, Salinas, Seaside, 
Monterey, and Marina
1258 PM PST Sat Dec 11 2021

...WIND ADVISORY IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Monterey and San Benito Counties.

* WHEN...From 1 AM to 4 PM PST Monday.

* 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/mtr
9 follow-up statements
308 
WWUS76 KMTR 120135
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
535 PM PST Sat Dec 11 2021

CAZ516-518-121530-
/O.NEW.KMTR.FZ.W.0003.211212T0800Z-211212T1600Z/
/O.CON.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Including the cities of Greenfield and King City
535 PM PST Sat Dec 11 2021

...FREEZE WARNING IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM PST
SUNDAY...
...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...

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

* WHERE...Southern Salinas Valley/Arroyo Seco and Lake San 
  Antonio and Mountains Of San Benito County and Interior 
  Monterey County Including Pinnacles National Park.

* WHEN...For the Freeze Warning, from midnight tonight to 8 AM 
  PST Sunday. For the Wind Advisory, from 1 AM to 4 PM PST 
  Monday.

* 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.

&&

$$

CAZ006-508>513-529-121530-
/O.CON.KMTR.WI.Y.0014.211213T0000Z-211213T1500Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
535 PM PST Sat Dec 11 2021

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

* WHAT...South winds 15 to 25 mph with gusts up to 55 mph 
  expected.

* WHERE...Portions of northern California.

* WHEN...From 4 PM Sunday to 7 AM PST Monday.

* 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.

&&

$$

CAZ517-528-530-121530-
/O.CON.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Santa Lucia Mountains and Los Padres National Forest-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Salinas, Seaside, Monterey, and Marina
535 PM PST Sat Dec 11 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Santa Lucia Mountains and Los Padres National Forest, 
  Southern Monterey Bay and Big Sur Coast and Northern Salinas 
  Valley/Hollister Valley and Carmel Valley.

* WHEN...From 1 AM to 4 PM PST Monday.

* 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/mtr
677 
WWUS76 KMTR 120622
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1022 PM PST Sat Dec 11 2021

CAZ516-518-121600-
/O.CON.KMTR.FZ.W.0003.211212T0800Z-211212T1600Z/
/O.CON.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Including the cities of Greenfield and King City
1022 PM PST Sat Dec 11 2021

...FREEZE WARNING REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 8 AM
PST SUNDAY...
...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as low
  as 23 expected. For the Wind Advisory, south winds 25 to 35 mph
  with gusts up to 55 mph expected.

* WHERE...Mountains Of San Benito County and Interior Monterey 
  County Including Pinnacles National Park and Southern Salinas 
  Valley/Arroyo Seco and Lake San Antonio.

* WHEN...For the Freeze Warning, from midnight tonight to 8 AM 
  PST Sunday. For the Wind Advisory, from 1 AM to 4 PM PST 
  Monday.

* 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.

&&

$$

CAZ006-508>513-529-121600-
/O.CON.KMTR.WI.Y.0014.211213T0000Z-211213T1500Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
1022 PM PST Sat Dec 11 2021

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

* WHAT...South winds 15 to 25 mph with gusts up to 55 mph 
  expected.

* WHERE...Portions of northern California.

* WHEN...From 4 PM Sunday to 7 AM PST Monday.

* 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.

&&

$$

CAZ517-528-530-121600-
/O.CON.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Santa Lucia Mountains and Los Padres National Forest-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Salinas, Seaside, Monterey, and Marina
1022 PM PST Sat Dec 11 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Santa Lucia Mountains and Los Padres National Forest, 
  Southern Monterey Bay and Big Sur Coast and Northern Salinas 
  Valley/Hollister Valley and Carmel Valley.

* WHEN...From 1 AM to 4 PM PST Monday.

* 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/mtr
377 
WWUS76 KMTR 121127
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
327 AM PST Sun Dec 12 2021

CAZ516-518-121930-
/O.CON.KMTR.FZ.W.0003.000000T0000Z-211212T1600Z/
/O.CON.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Including the cities of Greenfield and King City
327 AM PST Sun Dec 12 2021

...FREEZE WARNING REMAINS IN EFFECT UNTIL 8 AM PST THIS MORNING...
...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...

* WHAT...For the Freeze Warning, sub-freezing temperatures as 
  low as 23 expected. For the Wind Advisory, south winds 25 to 
  35 mph with gusts up to 55 mph expected.

* WHERE...Mountains Of San Benito County and Interior Monterey 
  County Including Pinnacles National Park and Southern Salinas 
  Valley/Arroyo Seco and Lake San Antonio.

* WHEN...For the Freeze Warning, from midnight tonight to 8 AM 
  PST Sunday. For the Wind Advisory, from 1 AM to 4 PM PST 
  Monday.

* 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.

&&

$$

CAZ006-508>513-529-121930-
/O.CON.KMTR.WI.Y.0014.211213T0000Z-211213T1500Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
327 AM PST Sun Dec 12 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 AM PST MONDAY...

* WHAT...South winds 15 to 25 mph with gusts up to 55 mph 
  expected.

* WHERE...Portions of northern California.

* WHEN...From 4 PM Sunday to 7 AM PST Monday.

* 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.

&&

$$

CAZ517-528-530-121930-
/O.CON.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Santa Lucia Mountains and Los Padres National Forest-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Salinas, Seaside, Monterey, and Marina
327 AM PST Sun Dec 12 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Santa Lucia Mountains and Los Padres National Forest, 
  Southern Monterey Bay and Big Sur Coast and Northern Salinas 
  Valley/Hollister Valley and Carmel Valley.

* WHEN...From 1 AM to 4 PM PST Monday.

* 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/mtr
426 
WWUS76 KMTR 121555
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
755 AM PST Sun Dec 12 2021

CAZ516-518-130700-
/O.EXP.KMTR.FZ.W.0003.000000T0000Z-211212T1600Z/
/O.CON.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Including the cities of Greenfield and King City
755 AM PST Sun Dec 12 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...
...FREEZE WARNING WILL EXPIRE AT 8 AM PST THIS MORNING...

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph 
  expected.

* WHERE...Mountains Of San Benito County and Interior Monterey 
  County Including Pinnacles National Park and Southern Salinas 
  Valley/Arroyo Seco and Lake San Antonio.

* WHEN...From 1 AM to 4 PM PST Monday.

* 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.

&&

$$

CAZ006-508>513-529-130700-
/O.CON.KMTR.WI.Y.0014.211213T0000Z-211213T1500Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
755 AM PST Sun Dec 12 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 AM PST MONDAY...

* WHAT...South winds 15 to 25 mph with gusts up to 55 mph 
  expected.

* WHERE...Portions of northern California.

* WHEN...From 4 PM this afternoon to 7 AM PST Monday.

* 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.

&&

$$

CAZ517-528-530-130700-
/O.CON.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
Santa Lucia Mountains and Los Padres National Forest-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Salinas, Seaside, Monterey, and Marina
755 AM PST Sun Dec 12 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 1 AM TO 4 PM PST MONDAY...

* WHAT...South winds 20 to 30 mph with gusts up to 60 mph 
  expected.

* WHERE...Santa Lucia Mountains and Los Padres National Forest, 
  Southern Monterey Bay and Big Sur Coast and Northern Salinas 
  Valley/Hollister Valley and Carmel Valley.

* WHEN...From 1 AM to 4 PM PST Monday.

* 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/mtr
083 
WWUS76 KMTR 121955
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1155 AM PST Sun Dec 12 2021

CAZ516>518-528-530-130700-
/O.UPG.KMTR.WI.Y.0014.211213T0900Z-211214T0000Z/
/O.NEW.KMTR.HW.W.0003.211213T0900Z-211214T0500Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Greenfield, King City, Salinas, Seaside, 
Monterey, and Marina
1155 AM PST Sun Dec 12 2021

...HIGH WIND WARNING IN EFFECT FROM 1 AM TO 9 PM PST MONDAY...

* WHAT...South winds 15 to 30 mph with gusts 45 to 60 mph
  expected. Locally stronger over the higher peaks and ridges.

* WHERE...Southern Salinas Valley/Arroyo Seco and Lake San 
  Antonio, Santa Lucia Mountains and Los Padres National Forest, 
  Mountains Of San Benito County and Interior Monterey County 
  Including Pinnacles National Park, Northern Salinas 
  Valley/Hollister Valley and Carmel Valley and Southern 
  Monterey Bay and Big Sur Coast.

* WHEN...From 1 AM to 9 PM PST Monday. 

* IMPACTS...Damaging winds will blow down trees and power lines.
  Widespread power outages are expected. Travel will be difficult,
  especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ006-508>513-529-130700-
/O.CON.KMTR.WI.Y.0014.211213T0000Z-211213T1500Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
1155 AM PST Sun Dec 12 2021

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
7 AM PST MONDAY...

* WHAT...South winds 10 to 25 mph with gusts 30 to 50 mph 
  expected.

* WHERE...Portions of northern California.

* WHEN...From 4 PM this afternoon to 7 AM PST Monday.

* 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/mtr
272 
WWUS76 KMTR 130625
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1025 PM PST Sun Dec 12 2021

CAZ516>518-528-530-131400-
/O.CON.KMTR.HW.W.0003.211213T0900Z-211214T0500Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Greenfield, King City, Salinas, Seaside, 
Monterey, and Marina
1025 PM PST Sun Dec 12 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM PST MONDAY...

* WHAT...South winds 25 to 35 mph with gusts up to 65 mph 
  expected.

* WHERE...Mountains Of San Benito County and Interior Monterey 
  County Including Pinnacles National Park, Southern Salinas 
  Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains 
  and Los Padres National Forest, Southern Monterey Bay and Big 
  Sur Coast and Northern Salinas Valley/Hollister Valley and 
  Carmel Valley.

* WHEN...Until 9 PM PST Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ006-508>513-529-131400-
/O.CON.KMTR.WI.Y.0014.000000T0000Z-211213T1500Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
1025 PM PST Sun Dec 12 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 7 AM PST MONDAY...

* WHAT...South winds 10 to 20 mph with gusts up to 45 mph.

* WHERE...Portions of northern California.

* WHEN...Until 7 AM PST Monday.

* 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/mtr
213 
WWUS76 KMTR 131110
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
310 AM PST Mon Dec 13 2021

CAZ516>518-528-530-131915-
/O.CON.KMTR.HW.W.0003.000000T0000Z-211214T0500Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Greenfield, King City, Salinas, Seaside, 
Monterey, and Marina
310 AM PST Mon Dec 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS
EVENING...

* WHAT...South winds 25 to 35 mph with gusts up to 65 mph 
  expected.

* WHERE...Mountains Of San Benito County and Interior Monterey 
  County Including Pinnacles National Park, Southern Salinas 
  Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains 
  and Los Padres National Forest, Southern Monterey Bay and Big 
  Sur Coast and Northern Salinas Valley/Hollister Valley and 
  Carmel Valley.

* WHEN...Until 9 PM PST Monday.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ006-508>513-529-131915-
/O.EXT.KMTR.WI.Y.0014.000000T0000Z-211214T0000Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
310 AM PST Mon Dec 13 2021

...WIND ADVISORY NOW IN EFFECT UNTIL 4 PM PST THIS AFTERNOON...

* WHAT...South winds 10 to 20 mph with gusts up to 45 mph.

* WHERE...Portions of northern California.

* WHEN...Until 4 PM PST this afternoon.

* 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/mtr
319 
WWUS76 KMTR 131909
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1109 AM PST Mon Dec 13 2021

CAZ516>518-528-530-140500-
/O.CON.KMTR.HW.W.0003.000000T0000Z-211214T0500Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Greenfield, King City, Salinas, Seaside, 
Monterey, and Marina
1109 AM PST Mon Dec 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS
EVENING...

* WHAT...South winds 25 to 35 mph with gusts up to 55 mph.

* WHERE...Mountains Of San Benito County and Interior Monterey 
  County Including Pinnacles National Park, Southern Salinas 
  Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains 
  and Los Padres National Forest, Southern Monterey Bay and Big 
  Sur Coast and Northern Salinas Valley/Hollister Valley and 
  Carmel Valley.

* WHEN...Until 9 PM PST this evening.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

CAZ006-508>513-529-140000-
/O.CON.KMTR.WI.Y.0014.000000T0000Z-211214T0000Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
1109 AM PST Mon Dec 13 2021

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

* WHAT...South winds 15 to 25 mph with gusts up to 40 mph.

* WHERE...Portions of northern California.

* WHEN...Until 4 PM PST this afternoon.

* 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/mtr
066 
WWUS76 KMTR 132346
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
346 PM PST Mon Dec 13 2021

CAZ006-508>513-529-140100-
/O.EXP.KMTR.WI.Y.0014.000000T0000Z-211214T0000Z/
San Francisco-San Francisco Bay Shoreline-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Clara Valley Including San Jose-Northern Monterey Bay-
Including the cities of San Francisco, Oakland, Fremont, Hayward,
Daly City, Berkeley, Pacifica, Concord, Antioch, Livermore, 
Walnut Creek, Pleasanton, Pittsburg, San Ramon, Blackhawk, 
Scotts Valley, Boulder Creek, Day Valley, San Jose, Santa Cruz, 
Watsonville, and Live Oak
346 PM PST Mon Dec 13 2021

...WIND ADVISORY WILL EXPIRE AT 4 PM PST THIS AFTERNOON...

Winds will continue to be breezy and gusty, but will no longer
meet Wind Advisory criteria.

$$

CAZ516>518-528-530-140500-
/O.CON.KMTR.HW.W.0003.000000T0000Z-211214T0500Z/
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Southern Monterey Bay and Big Sur Coast-
Including the cities of Greenfield, King City, Salinas, Seaside, 
Monterey, and Marina
346 PM PST Mon Dec 13 2021

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 9 PM PST THIS
EVENING...

* WHAT...South winds 25 to 35 mph with gusts up to 60 mph.

* WHERE...Mountains Of San Benito County and Interior Monterey 
  County Including Pinnacles National Park, Southern Salinas 
  Valley/Arroyo Seco and Lake San Antonio, Santa Lucia Mountains 
  and Los Padres National Forest, Southern Monterey Bay and Big 
  Sur Coast and Northern Salinas Valley/Hollister Valley and 
  Carmel Valley.

* WHEN...Until 9 PM PST this evening.

* IMPACTS...Damaging winds will blow down trees and power lines. 
  Widespread power outages are expected. Travel will be 
  difficult, especially for high profile vehicles.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

People should avoid being outside in forested areas and around
trees and branches. If possible, remain in the lower levels of
your home during the windstorm, and avoid windows. Use caution if
you must drive.

&&

$$

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

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 11, 1:12 PM PSTHigh Surf AdvisoryMTRMarin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma4 days
Dec 11, 1:29 PM PSTGale WarningMTR59 hr
Dec 11, 1:29 PM PSTSmall Craft AdvisoryMTR5 days

Nearby

Wind Advisories in California, 2021Every wind advisory in 2021

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.