Alert archive / California / Wind Advisories in 2012

Wind Advisory 2, NWS San Francisco Bay Area, CA

February 6, 20128 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Feb 6, 2012, 2:53 AM PST for 8 counties in California. It took effect at Feb 6, 2012, 10:00 PM PST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Feb 6, 2012, 2:53 AM PST (10:53 UTC)
In effect from
Feb 6, 2012, 10:00 PM PST
Expired
Feb 7, 2012, 9:25 AM PST
In force
11 hr
Issued by
NWS San Francisco Bay Area, CA

Counties City and County of San Francisco, CA, Marin County, CA, Monterey 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), 28 km from the middle of the area, began a volume at 10:57 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 00:00Z, 10.9 hours before the alert went out and 43 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 00:00Z on 2012-02-06Temperature 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 00:00Z on 2012-02-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 23 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
2314 m above ground
0-6 km bulk shear
8 kt
0-1 km storm-relative helicity
23 m²/s²
0-3 km storm-relative helicity
21 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

217 
WWUS76 KMTR 061053
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
253 AM PST MON FEB 6 2012

...WIND ADVISORY IN EFFECT FOR THE COAST AND COASTAL HILLS
MONDAY EVENING THROUGH TUESDAY MORNING...

.AN APPROACHING PACIFIC WEATHER SYSTEM WILL BRING LOCALLY STRONG AND
GUSTY WINDS TO THE REGION FROM MONDAY NIGHT THROUGH THE TUESDAY
MORNING COMMUTE HOURS. THE STRONGEST WINDS WILL BE ALONG THE
IMMEDIATE COAST AND IN THE COASTAL HILLS WHERE FREQUENT GUSTS FROM
40 TO 50 MPH WILL BE LIKELY. THE WEATHER SYSTEM WILL MOVE ONSHORE
BY 10 AM TUESDAY AND WINDS WILL RAPIDLY DECREASE AFTER FRONTAL
PASSAGE.

CAZ006-505-507-509-512-517-528>530-070200-
/O.UPG.KMTR.HW.A.0001.120207T0700Z-120207T1700Z/
/O.NEW.KMTR.WI.Y.0002.120207T0600Z-120207T1800Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
253 AM PST MON FEB 6 2012

...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST
TUESDAY...

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS EVENING TO 10
AM PST TUESDAY. 

* TIMING: FROM 10 PM MONDAY EVENING THROUGH 10 AM TUESDAY MORNING.

* WINDS: SUSTAINED WINDS FROM 20 TO 30 MPH WITH FREQUENT GUSTS
  FROM 40 TO 50 MPH. STRONGEST WINDS WILL BE NEAR THE COAST...IN
  THE COASTAL HILLS...AND IN THE NORTHERN SALINAS VALLEY.

* IMPACTS: STRONG WINDS WILL OCCUR ALONG HIGHWAY 1 INCLUDING THE
  GOLDEN GATE...CAUSING DIFFICULT DRIVING CONDITIONS. FALLEN TREES
  OR TREE LIMBS MAY RESULT IN POWER OUTAGES.


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.

&&

$$

DYKEMA
3 follow-up statements
314 
WWUS76 KMTR 070147
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
547 PM PST MON FEB 6 2012

...WIND ADVISORY IN EFFECT FOR THE COAST AND COASTAL HILLS TONIGHT
THROUGH TUESDAY MORNING...

.AN APPROACHING PACIFIC STORM FRONT WILL BRING LOCALLY STRONG AND
GUSTY WINDS TO THE REGION TONIGHT THROUGH THE TUESDAY MORNING COMMUTE
HOURS. THE STRONGEST WINDS WILL BE ALONG THE IMMEDIATE COAST AND
IN THE COASTAL HILLS WHERE FREQUENT GUSTS FROM 45 TO 55 MPH ARE
EXPECTED. THE WEATHER SYSTEM WILL MOVE ONSHORE BY 10 AM TUESDAY
AND WINDS WILL RAPIDLY DECREASE AFTER THE FRONTAL PASSAGE.

CAZ006-505-507-509-512-517-528>530-071230-
/O.CON.KMTR.WI.Y.0002.120207T0600Z-120207T1800Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
547 PM PST MON FEB 6 2012

...WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
10 AM PST TUESDAY...

A WIND ADVISORY REMAINS IN EFFECT FROM 10 PM THIS EVENING TO
10 AM PST TUESDAY. 

* TIMING: FROM 10 PM MONDAY EVENING THROUGH 10 AM TUESDAY 
  MORNING.

* WINDS: SUSTAINED SOUTHERLY WINDS FROM 20 TO 35 MPH WITH FREQUENT
  GUSTS FROM 45 TO 55 MPH. STRONGEST WINDS WILL BE NEAR THE
  COAST...IN THE COASTAL HILLS...AND IN THE NORTHERN SALINAS
  VALLEY.

* IMPACTS: STRONG WINDS WILL OCCUR ALONG HIGHWAY 1 INCLUDING THE
  GOLDEN GATE...CAUSING DIFFICULT DRIVING CONDITIONS. FALLEN TREES
  OR TREE LIMBS MAY RESULT IN POWER OUTAGES. SECURE LOOSE OBJECTS
  AND ANY TEMPORARY STRUCTURES OR TENTS. THE PERIOD OF STRONGEST
  WINDS WILL LIKELY OCCUR IN THE PRE-DAWN HOURS SO TAKE THE
  OPPORTUNITY THIS EVENING TO COMPLETE ANY FINAL STORM PREPARATIONS.

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.

&&

$$
477 
WWUS76 KMTR 071223
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
423 AM PST TUE FEB 7 2012


CAZ006-505-507-509-512-529-071330-
/O.CAN.KMTR.WI.Y.0002.000000T0000Z-120207T1800Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
SANTA CRUZ MOUNTAINS-NORTHERN MONTEREY BAY-
423 AM PST TUE FEB 7 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
CANCELLED THE WIND ADVISORY FOR THE COASTAL AREAS FROM SANTA CRUZ
COUNTY NORTHWARD.

GUSTY SOUTHERLY WINDS ARE STILL LIKELY THIS MORNING...HOWEVER THEY
ARE EXPECTED TO REMAIN UNDER ADVISORY CRITERIA IN MOST LOCATIONS.


$$

CAZ517-528-530-071800-
/O.CON.KMTR.WI.Y.0002.000000T0000Z-120207T1800Z/
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
423 AM PST TUE FEB 7 2012

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING...


* TIMING: UNTIL 10 AM THIS MORNING. 

* WINDS: SUSTAINED SOUTHERLY WINDS FROM 20 TO 35 MPH WITH FREQUENT
  GUSTS FROM 45 TO 55 MPH NEAR THE COAST...IN THE SANTA LUCIA
  MOUNTAINS...AND IN THE NORTHERN SALINAS VALLEY.

* IMPACTS: THE WINDS COMBINED WITH AREAS OF RAIN WILL MAKE FOR
  LOCALLY DIFFICULT DRIVING CONDITIONS. IN ADDITION...PLACES WITH
  A SOUTHERN EXPOSURE WILL SEE THE STRONGEST WINDS. THOSE SPOTS
  COULD HAVE DOWNED TREES OR FALLEN TREE LIMBS.

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.

&&

$$


BELL
107 
WWUS76 KMTR 071725
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
925 AM PST TUE FEB 7 2012

...WIND ADVISORY IS CANCELLED...

CAZ517-528-530-071830-
/O.CAN.KMTR.WI.Y.0002.000000T0000Z-120207T1800Z/
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
925 AM PST TUE FEB 7 2012

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
CANCELLED THE WIND ADVISORY. 

WINDS ARE NO LONGER EXPECTED TO REACH ADVISORY LEVELS. SOME
LOCATIONS OVER HIGHER TERRAIN MAY STILL SEE SUSTAINED WINDS TO 35
MPH WITH STRONGER GUSTS FOR THE NEXT SEVERAL HOURS. 

$$

Nearby

Wind Advisories in California, 2012Every wind advisory in 2012

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.