Alert archive / California / Wind Advisories in 2017

Wind Advisory 12, NWS San Francisco Bay Area, CA

February 18, 201711 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Feb 18, 2017, 2:23 PM PST for 11 counties in California. It took effect at Feb 19, 2017, 4:00 PM PST. It was in force for 34 hr.

The area

The counties it named.

The facts

Issued
Feb 18, 2017, 2:23 PM PST (22:23 UTC)
In effect from
Feb 19, 2017, 4:00 PM PST
Expired
Feb 21, 2017, 2:17 AM PST
In force
34 hr
Issued by
NWS San Francisco Bay Area, CA

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

The radar

The San Francisco radar (KMUX), 46 km from the middle of the area, began a volume at 22:25 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, 10.4 hours before the alert went out and 24 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 2017-02-18Temperature 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 2017-02-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 19 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
585 m above ground
0-6 km bulk shear
10 kt
0-1 km storm-relative helicity
19 m²/s²
0-3 km storm-relative helicity
10 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

353 
WWUS76 KMTR 182223
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
223 PM PST Sat Feb 18 2017

...GUSTY WINDS WILL ACCOMPANY ARRIVING STORM SYSTEM LATER
SUNDAY...

CAZ006-505>513-516>518-528>530-191400-
/O.NEW.KMTR.WI.Y.0012.170220T0000Z-170221T1300Z/
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
North Bay Interior Valleys-North Bay Mountains-
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-
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-
Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast-
Including the cities of...San Francisco...Tamalpais-Homestead...
Sausalito...Santa Rosa...South Santa Rosa...Napa...San Rafael...
Petaluma...Novato...Rohnert Park...Angwin...
Lagunitas-Forest Knolls...Woodacre...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...Greenfield...King City...Salinas...Santa Cruz...
Watsonville...Live Oak...Seaside...Monterey...Marina
223 PM PST Sat Feb 18 2017

...WIND ADVISORY IN EFFECT FROM 4 PM SUNDAY TO 5 AM PST TUESDAY...

The National Weather Service in San Francisco has issued a Wind
Advisory...which is in effect from 4 PM Sunday to 5 AM PST
Tuesday. 

* TIMING...SUNDAY AFTERNOON TO EARLY TUESDAY MORNING

* WINDS... Sustained southeast winds 20 to 35 mph with gusts
  greater than 45 mph. Winds will shift to the south later tomorrow
  night.

* IMPACTS...Gusty winds will make driving difficult especially for
  drivers of high profile vehicles. Saturated soils will also
  contribute to an increased risk of downed trees and powerlines
  during these stronger winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 35 mph and gusts of
45 mph are expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution.

&&

$$
6 follow-up statements
728 
WWUS76 KMTR 190536
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
936 PM PST Sat Feb 18 2017

...GUSTY WINDS WILL ACCOMPANY ARRIVING STORM SYSTEM LATER
SUNDAY...

.A strong Pacific Storm system will approach the California coast
on Sunday. Southerly winds in advance of this system will increase
Sunday afternoon and evening, especially along the coast and in
the hills. Locally strong and gusty winds will then continue
through Sunday night and Monday. Strongest winds are anticipated
on Monday as a frontal boundary gradually moves south through the
area. Winds will slowly decrease on Monday night.

CAZ006-505>513-516>518-528>530-191800-
/O.CON.KMTR.WI.Y.0012.170220T0000Z-170221T1300Z/
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
North Bay Interior Valleys-North Bay Mountains-
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-
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-
Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast-
Including the cities of...San Francisco...Tamalpais-Homestead...
Sausalito...Santa Rosa...South Santa Rosa...Napa...San Rafael...
Petaluma...Novato...Rohnert Park...Angwin...
Lagunitas-Forest Knolls...Woodacre...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...Greenfield...King City...Salinas...Santa Cruz...
Watsonville...Live Oak...Seaside...Monterey...Marina
936 PM PST Sat Feb 18 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM SUNDAY TO 5 AM PST
TUESDAY...

* TIMING...Sunday afternoon through Monday night. Strongest winds
  expected Monday and Monday evening. 

* WINDS... Sustained southerly winds 20 to 35 mph with gusts of 40
  to 50 mph. 

* IMPACTS...Gusty winds will make driving difficult especially for
  drivers of high profile vehicles. Saturated soils will also
  contribute to an increased risk of downed trees and powerlines
  during these stronger winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 35 mph and gusts of
45 mph are expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution. Winds this strong combined with saturated soils can result
in downed trees and power outages.

&&

$$
685 
WWUS76 KMTR 191315
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
515 AM PST Sun Feb 19 2017

...STRONG AND GUSTY SOUTHERLY WINDS WILL DEVELOP LATE SUNDAY AND
PERSIST INTO MONDAY...

.A strong Pacific storm system will impact the California coast
today through Monday. Southerly winds in advance of this system
will increase late this afternoon and evening, especially along
the coast and in the hills. Locally strong and gusty winds will
then continue through tonight and Monday. Strongest winds are
anticipated on Monday as a frontal boundary gradually moves south
through the area. Winds will slowly diminish on Monday night.

CAZ006-505>513-516>518-528>530-192300-
/O.CON.KMTR.WI.Y.0012.170220T0000Z-170221T1300Z/
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
North Bay Interior Valleys-North Bay Mountains-
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-
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-
Northern Monterey Bay-Southern Monterey Bay and Big Sur Coast-
Including the cities of...San Francisco...Tamalpais-Homestead...
Sausalito...Santa Rosa...South Santa Rosa...Napa...San Rafael...
Petaluma...Novato...Rohnert Park...Angwin...
Lagunitas-Forest Knolls...Woodacre...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...Greenfield...King City...Salinas...Santa Cruz...
Watsonville...Live Oak...Seaside...Monterey...Marina
515 AM PST Sun Feb 19 2017

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
5 AM PST TUESDAY...

* TIMING...This afternoon through Monday night. Strongest winds
  expected Monday and Monday evening.

* WINDS...Sustained southerly winds 20 to 35 mph with gusts of 45
  to 50 mph.

* IMPACTS...Gusty winds will make driving difficult especially 
  for drivers of high profile vehicles. Saturated soils will 
  also contribute to an increased risk of downed trees and 
  powerlines during these stronger winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 35 mph and gusts of
45 mph are expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution. Winds this strong combined with saturated soils can
result in downed trees and power outages.

&&

$$
545 
WWUS76 KMTR 192133
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
133 PM PST Sun Feb 19 2017

...STRONG AND GUSTY SOUTHERLY WINDS WILL DEVELOP LATE SUNDAY AND
PERSIST INTO MONDAY...

.A strong Pacific storm system will impact the California coast
today through Monday. Southerly winds in advance of this system
will increase late this afternoon and evening... especially along
the coast and in the hills. Locally strong and gusty winds will
then continue through tonight and Monday. Strongest winds are
anticipated on Monday as a frontal boundary gradually moves south
through the area. Winds will slowly diminish through Monday
night.

CAZ006-505>507-509>512-517-518-529-530-201500-
/O.NEW.KMTR.HW.W.0005.170220T2100Z-170221T1100Z/
/O.EXT.KMTR.WI.Y.0012.170220T0000Z-170220T2100Z/
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
North Bay Interior Valleys-North Bay Mountains-
San Francisco Peninsula Coast-East Bay Interior Valleys-
East Bay Hills and the Diablo Range-Santa Cruz Mountains-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
Including the cities of...San Francisco...Tamalpais-Homestead...
Sausalito...Santa Rosa...South Santa Rosa...Napa...San Rafael...
Petaluma...Novato...Rohnert Park...Angwin...
Lagunitas-Forest Knolls...Woodacre...Pacifica...Concord...
Antioch...Livermore...Walnut Creek...Pleasanton...Pittsburg...
San Ramon...Blackhawk...Scotts Valley...Boulder Creek...
Day Valley...Santa Cruz...Watsonville...Live Oak...Seaside...
Monterey...Marina
133 PM PST Sun Feb 19 2017

...WIND ADVISORY NOW IN EFFECT UNTIL 1 PM PST MONDAY...
...HIGH WIND WARNING IN EFFECT FROM 1 PM MONDAY TO 3 AM PST
TUESDAY...

The National Weather Service in San Francisco has issued a High
Wind Warning...which is in effect from 1 PM Monday to 3 AM PST
Tuesday. 

* TIMING...Southeast winds increase this afternoon through
  tonight. Strongest southerly winds expected Monday afternoon and
  Monday evening. Winds diminish overnight into Tuesday.

* WINDS...Sustained southeast winds 20 to 30mph today shifting
  south and increasing to 25 to 35 mph tomorrow afternoon and
  evening. Wind gusts 30 to 40 mph today increasing to 45 to 60 mph
  by tomorrow afternoon and evening.

* IMPACTS...Gusty winds will make driving difficult especially 
  for drivers of high profile vehicles. Saturated soils will 
  also contribute to an increased risk of downed trees and 
  powerlines during these stronger winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 35 mph and gusts of
45 mph are expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution. Winds this strong combined with saturated soils can
result in downed trees and power outages.

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

CAZ508-513-516-528-201500-
/O.EXT.KMTR.WI.Y.0012.170220T0000Z-170221T1100Z/
San Francisco Bay Shoreline-Santa Clara Valley Including San Jose-
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Including the cities of...Oakland...Fremont...Hayward...
Daly City...Berkeley...San Jose...Greenfield...King City...
Salinas
133 PM PST Sun Feb 19 2017

...WIND ADVISORY NOW IN EFFECT UNTIL 3 AM PST TUESDAY...

* TIMING...Southeast winds increase this afternoon through
  tonight. Strongest southerly winds expected Monday afternoon and
  Monday evening. Winds diminish overnight into Tuesday.

* WINDS...Sustained southeast winds 20 to 35 mph with gusts of 40
  to 50 mph.  

* IMPACTS...Gusty winds will make driving difficult especially 
  for drivers of high profile vehicles. Saturated soils will 
  also contribute to an increased risk of downed trees and 
  powerlines during these stronger winds. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that sustained winds of 35 mph and gusts of
45 mph are expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution. Winds this strong combined with saturated soils can
result in downed trees and power outages.

&&

$$
898 
WWUS76 KMTR 200410
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
810 PM PST Sun Feb 19 2017

...STRONG AND GUSTY SOUTHERLY WINDS WILL DEVELOP LATE SUNDAY AND
PERSIST THROUGH MONDAY EVENING...
...STRONGEST WINDS EXPECTED MONDAY AFTERNOON AND EVENING...

.A strong Pacific storm system will impact the San Francisco Bay
Area and Monterey Bay Area through Monday Night. Southerly winds
in advance of this system will increase on Sunday night,
especially along the coast and in the hills. Locally strong and
gusty winds will then continue through Monday night. Strongest
winds are anticipated Monday afternoon and evening as a frontal
boundary gradually moves south through the area. Winds will slowly
diminish late Monday night.

CAZ506-201800-
/O.CAN.KMTR.HW.W.0005.170220T2100Z-170221T1100Z/
/O.EXT.KMTR.WI.Y.0012.000000T0000Z-170221T1100Z/
North Bay Interior Valleys-
Including the cities of...Santa Rosa...South Santa Rosa...Napa...
San Rafael...Petaluma...Novato...Rohnert Park
810 PM PST Sun Feb 19 2017

...WIND ADVISORY NOW IN EFFECT UNTIL 3 AM PST TUESDAY...
...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in San Francisco has cancelled the
High Wind Warning for the North Bay Valleys. A wind advisory
remains in effect.

* TIMING...Southeast winds increase tonight through Monday
  morning. Strongest southerly winds expected Monday afternoon and
  Monday evening. Winds diminish late Monday night.

* WINDS...Sustained southerly winds 10 to 20 mph with gusts to 45
  mph Sunday night and Monday morning. Winds increasing to 15 to
  25 mph Monday afternoon and evening with gusts to 50 mph. Winds
  decrease late Monday night.

* IMPACTS...Gusty winds will make driving difficult especially for
  drivers of high profile vehicles. Saturated soils will also
  contribute to an increased risk of downed trees and powerlines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of at least 45 mph are
expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution. Winds this strong combined with saturated soils can
result in downed trees and power outages.

&&

$$

CAZ006-505-507-509>512-517-518-529-530-201800-
/O.CON.KMTR.HW.W.0005.170220T2100Z-170221T1100Z/
/O.CON.KMTR.WI.Y.0012.000000T0000Z-170220T2100Z/
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
North Bay Mountains-San Francisco Peninsula Coast-
East Bay Interior Valleys-East Bay Hills and the Diablo Range-
Santa Cruz Mountains-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
Including the cities of...San Francisco...Tamalpais-Homestead...
Sausalito...Angwin...Lagunitas-Forest Knolls...Woodacre...
Pacifica...Concord...Antioch...Livermore...Walnut Creek...
Pleasanton...Pittsburg...San Ramon...Blackhawk...Scotts Valley...
Boulder Creek...Day Valley...Santa Cruz...Watsonville...
Live Oak...Seaside...Monterey...Marina
810 PM PST Sun Feb 19 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST MONDAY...
...HIGH WIND WARNING REMAINS IN EFFECT FROM 1 PM MONDAY TO 3 AM
PST TUESDAY...

* TIMING...Southeast winds increase tonight through Monday morning
  and then increase further on Monday afternoon. Strongest
  southerly winds expected Monday afternoon and Monday evening.
  Winds diminish late Monday night.

* WINDS...Sustained southerly winds 15 to 25 mph with gusts to 45
  mph Sunday night and Monday morning. Winds increasing to 25 to
  40 mph Monday afternoon and evening with gusts to 60 mph. Winds
  decrease late Monday night.

* IMPACTS...By Monday afternoon winds may be strong enough to
  cause property damage. Strong and gusty winds will make driving
  difficult, especially for drivers of high profile vehicles.
  Saturated soils will also contribute to an increased risk of
  downed trees and powerlines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of at least 45 mph are
expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution. Winds this strong combined with saturated soils can
result in downed trees and power outages.

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

CAZ508-513-516-528-201800-
/O.CON.KMTR.WI.Y.0012.000000T0000Z-170221T1100Z/
San Francisco Bay Shoreline-Santa Clara Valley Including San Jose-
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Including the cities of...Oakland...Fremont...Hayward...
Daly City...Berkeley...San Jose...Greenfield...King City...
Salinas
810 PM PST Sun Feb 19 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY...

* TIMING...Southeast winds increase tonight through Monday
  morning. Strongest southerly winds expected Monday afternoon and
  Monday evening. Winds diminish late Monday night. 

* WINDS...Sustained southerly winds 15 to 25 mph with gusts to 45
  mph Sunday night and Monday morning. Winds increasing to 20 to
  30 mph Monday afternoon and evening with gusts to 50 mph. Winds
  decrease late Monday night.

* IMPACTS...Gusty winds will make driving difficult especially for
  drivers of high profile vehicles. Saturated soils will also
  contribute to an increased risk of downed trees and powerlines. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of at least 45 mph are
expected. Winds this strong can make driving
difficult...especially for high profile vehicles. Use extra
caution. Winds this strong combined with saturated soils can
result in downed trees and power outages.

&&

$$
487 
WWUS76 KMTR 201323
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
523 AM PST Mon Feb 20 2017

...STRONG AND GUSTY SOUTHERLY WINDS EXPECTED THROUGH THIS AFTERNOON
AND EVENING...

.A strong Pacific storm system will impact the San Francisco Bay
Area and Monterey Bay Area through Monday night. Southerly winds
in advance of this system will increase through this morning,
especially along the coast and in the hills. Locally strong and
gusty winds will then continue through Monday night. Strongest
winds are anticipated this afternoon and evening as a frontal
boundary gradually moves south through the area. Winds will slowly
diminish late tonight.

CAZ006-505-507-509>512-517-518-529-530-210500-
/O.CON.KMTR.HW.W.0005.170220T2100Z-170221T1100Z/
/O.CON.KMTR.WI.Y.0012.000000T0000Z-170220T2100Z/
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
North Bay Mountains-San Francisco Peninsula Coast-
East Bay Interior Valleys-East Bay Hills and the Diablo Range-
Santa Cruz Mountains-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
Including the cities of...San Francisco...Tamalpais-Homestead...
Sausalito...Angwin...Lagunitas-Forest Knolls...Woodacre...
Pacifica...Concord...Antioch...Livermore...Walnut Creek...
Pleasanton...Pittsburg...San Ramon...Blackhawk...Scotts Valley...
Boulder Creek...Day Valley...Santa Cruz...Watsonville...
Live Oak...Seaside...Monterey...Marina
523 AM PST Mon Feb 20 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 1 PM PST THIS
AFTERNOON...
...HIGH WIND WARNING REMAINS IN EFFECT FROM 1 PM THIS AFTERNOON
TO 3 AM PST TUESDAY...

* TIMING...Southeast winds increase through this morning and then
  further intensify this afternoon. Strongest southerly winds
  expected this afternoon and evening. Winds diminish late
  tonight.

* WINDS...Sustained southerly winds 15 to 25 mph with gusts to 45
  mph. Winds increasing to 25 to 40 mph this afternoon and evening
  with gusts to 60 mph.

* IMPACTS...Winds may be strong enough to cause property damage.
  Strong and gusty winds will make driving difficult, especially
  for drivers of high profile vehicles. Saturated soils will also
  contribute to an increased risk of downed trees and powerlines.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of at least 45 mph are
expected. Winds this strong can make driving difficult...
especially for high profile vehicles. Use extra caution. Winds
this strong combined with saturated soils can result in downed
trees and power outages.

A High Wind Warning means a hazardous high wind event is expected
or occurring. Sustained wind speeds of at least 40 mph or gusts
of 58 mph or more can lead to property damage.

&&

$$

CAZ506-508-513-516-528-210500-
/O.CON.KMTR.WI.Y.0012.000000T0000Z-170221T1100Z/
North Bay Interior Valleys-San Francisco Bay Shoreline-
Santa Clara Valley Including San Jose-
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Including the cities of...Santa Rosa...South Santa Rosa...Napa...
San Rafael...Petaluma...Novato...Rohnert Park...Oakland...
Fremont...Hayward...Daly City...Berkeley...San Jose...
Greenfield...King City...Salinas
523 AM PST Mon Feb 20 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST TUESDAY...

* TIMING...Southeast winds increase through this morning.
  Strongest southerly winds expected this afternoon and evening.
  Winds diminish late tonight.

* WINDS...Sustained southerly winds 15 to 25 mph with gusts to 45
  mph. Winds increasing to 20 to 30 mph this afternoon and evening
  with gusts to 50 mph.

* IMPACTS...Gusty winds will make driving difficult especially 
  for drivers of high profile vehicles. Saturated soils will 
  also contribute to an increased risk of downed trees and 
  powerlines. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A Wind Advisory means that wind gusts of at least 45 mph are
expected. Winds this strong can make driving difficult...
especially for high profile vehicles. Use extra caution. Winds
this strong combined with saturated soils can result in downed
trees and power outages.

&&

$$
162 
WWUS76 KMTR 211017
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
217 AM PST Tue Feb 21 2017

CAZ006-505-507-509>512-517-518-529-530-211130-
/O.CAN.KMTR.HW.W.0005.000000T0000Z-170221T1100Z/
San Francisco-
Coastal North Bay Including Point Reyes National Seashore-
North Bay Mountains-San Francisco Peninsula Coast-
East Bay Interior Valleys-East Bay Hills and the Diablo Range-
Santa Cruz Mountains-
Santa Lucia Mountains and Los Padres National Forest-
Mountains Of San Benito County And Interior Monterey County
Including Pinnacles National Park-Northern Monterey Bay-
Southern Monterey Bay and Big Sur Coast-
Including the cities of...San Francisco...Tamalpais-Homestead...
Sausalito...Angwin...Lagunitas-Forest Knolls...Woodacre...
Pacifica...Concord...Antioch...Livermore...Walnut Creek...
Pleasanton...Pittsburg...San Ramon...Blackhawk...Scotts Valley...
Boulder Creek...Day Valley...Santa Cruz...Watsonville...
Live Oak...Seaside...Monterey...Marina
217 AM PST Tue Feb 21 2017

...HIGH WIND WARNING IS CANCELLED...

The National Weather Service in San Francisco has cancelled the
High Wind Warning. 

Wind speeds across the region have fallen below warning criteria
and will continue to diminish. However, breezy to locally gusty
winds will remain possible through early morning.

$$

CAZ506-508-513-516-528-211130-
/O.CAN.KMTR.WI.Y.0012.000000T0000Z-170221T1100Z/
North Bay Interior Valleys-San Francisco Bay Shoreline-
Santa Clara Valley Including San Jose-
Southern Salinas Valley/Arroyo Seco and Lake San Antonio-
Northern Salinas Valley/Hollister Valley and Carmel Valley-
Including the cities of...Santa Rosa...South Santa Rosa...Napa...
San Rafael...Petaluma...Novato...Rohnert Park...Oakland...
Fremont...Hayward...Daly City...Berkeley...San Jose...
Greenfield...King City...Salinas
217 AM PST Tue Feb 21 2017

...WIND ADVISORY IS CANCELLED...

The National Weather Service in San Francisco has cancelled the
Wind Advisory. 

Wind speeds across the region have fallen below advisory criteria
and will continue to diminish. However, breezy to locally gusty
winds will remain possible through early morning.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 17, 6:17 PM PSTAreal Flood AdvisoryMTRSanta Clara118 min
Feb 17, 9:22 PM PSTSmall Craft AdvisoryMTR24 hr
Feb 18, 4:33 AM PSTHigh Surf AdvisoryMTRMonterey, City and County of San Francisco, San Mateo, Santa Cruz13 hr
Feb 18, 10:06 AM PSTFlood WatchMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more64 hr
Feb 18, 2:29 PM PSTGale WarningMTR60 hr

Nearby

Wind Advisories in California, 2017Every wind advisory in 2017

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.