Alert archive / California / Wind Advisories in 2011

Wind Advisory 7, NWS San Francisco Bay Area, CA

December 1, 2011Monterey County, California

NWS San Francisco Bay Area, CA issued this wind advisory at Dec 1, 2011, 6:41 PM PST for Monterey County, California. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Dec 1, 2011, 6:41 PM PST (02:41 UTC)
Expired
Dec 2, 2011, 12:00 AM PST
In force
5 hr
Issued by
NWS San Francisco Bay Area, CA

County Monterey County, CA

The radar

The San Francisco radar (KMUX), 115 km from the middle of the area, began a volume at 02:43 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

Vandenberg AFB, CA (KVBG), launched 00:00Z, 2.7 hours before the alert went out and 183 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, Vandenberg AFB, CA at 00:00Z on 2011-12-02Temperature 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, Vandenberg AFB, CA at 00:00Z on 2011-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -49 square meters per square second.1939587897117Sfc1 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
2629 m above ground
0-6 km bulk shear
49 kt
0-1 km storm-relative helicity
-49 m²/s²
0-3 km storm-relative helicity
-25 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.

557 
WWUS76 KMTR 020241
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
641 PM PST THU DEC 1 2011

CAZ517-020800-
/O.NEW.KMTR.WI.Y.0007.111202T0241Z-111202T0800Z/
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
641 PM PST THU DEC 1 2011

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT PST TONIGHT...

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT UNTIL MIDNIGHT PST
TONIGHT...FOR THE SANTA LUCIA MOUNTAINS.

* WINDS: STRONG AND GUSTY NORTHEAST WINDS WILL CONTINUE THROUGH
  THURSDAY EVENING. WIND GUSTS UP TO 50 MPH ARE LIKELY OVER 
  EXPOSED RIDGES AND THROUGH COASTAL CANYONS.

* IMPACTS: DOWNED TREES AND BRANCHES MAY CAUSE POWER OUTAGES.
  LOOSE OBJECTS NOT TIED DOWN MAY BLOW AROUND. DRIVING HIGH
  PROFILE VEHICLES WILL BE DIFFICULT.


PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 35 MPH ARE
EXPECTED...OR GUSTS TO AT LEAST 45 MPH. WINDS THIS STRONG CAN MAKE
DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE
EXTRA CAUTION.

&&

$$

CAZ509-512-021400-
/O.EXA.KMTR.WI.Y.0006.000000T0000Z-111202T1800Z/
SAN FRANCISCO PENINSULA COAST-SANTA CRUZ MOUNTAINS-
641 PM PST THU DEC 1 2011

...WIND ADVISORY IN EFFECT UNTIL 10 AM PST FRIDAY...

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT UNTIL 10 AM PST FRIDAY...FOR
THE SANTA CRUZ MOUNTAINS AND SAN FRANCISCO PENINSULA COAST. 

* WINDS: STRONG AND GUSTY NORTHEAST WINDS WILL CONTINUE THROUGH
  LATE FRIDAY MORNING. WIND GUSTS UP TO 50 MPH ARE LIKELY OVER 
  EXPOSED RIDGES AND THROUGH COASTAL CANYONS.

* IMPACTS: DOWNED TREES AND BRANCHES MAY CAUSE POWER OUTAGES.
  LOOSE OBJECTS NOT TIED DOWN MAY BLOW AROUND. DRIVING HIGH
  PROFILE VEHICLES WILL BE DIFFICULT.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 35 MPH ARE
EXPECTED...OR GUSTS TO AT LEAST 45 MPH. WINDS THIS STRONG CAN MAKE
DRIVING DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE
EXTRA CAUTION.

&&

$$

CAZ516-021400-
/O.CON.KMTR.FR.Y.0004.111202T0800Z-111202T1700Z/
SOUTHERN SALINAS VALLEY...ARROYO SECO...AND LAKE SAN ANTONIO-
641 PM PST THU DEC 1 2011

...FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PST FRIDAY...

A FROST ADVISORY REMAINS IN EFFECT FROM MIDNIGHT TONIGHT TO 9 AM
PST FRIDAY FOR THE SOUTHERN SALINAS VALLEY...THE ARROYO SECO
AREA...AND THE LAKE SAN ANTONIO AREA.

* TEMPERATURE: OVERNIGHT LOW TEMPERATURES WILL RANGE FROM THE 
  MID 20S TO LOWER 30S. 

* IMPACTS: PLANTS SENSITIVE TO FREEZING TEMPERATURES MAY BE 
  SEVERELY DAMAGED IF LEFT UNPROTECTED TONIGHT. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A FROST ADVISORY MEANS THAT FROST IS POSSIBLE. SENSITIVE OUTDOOR
PLANTS MAY BE DAMAGED OR KILLED IF LEFT UNCOVERED.

&&

$$

CAZ511-021400-
/O.CON.KMTR.WI.Y.0006.000000T0000Z-111202T1800Z/
EAST BAY HILLS AND DIABLO RANGE-
641 PM PST THU DEC 1 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR THE
EAST BAY HILLS.

* WINDS: STRONG AND GUSTY NORTHEAST WINDS WILL CONTINUE THROUGH
  LATE FRIDAY MORNING. WIND GUSTS UP TO 50 MPH ARE LIKELY OVER
  EXPOSED RIDGES.

* IMPACTS: DOWNED TREES AND BRANCHES MAY CAUSE POWER OUTAGES. 
  LOOSE OBJECTS NOT TIED DOWN MAY BLOW AROUND. DRIVING HIGH 
  PROFILE VEHICLES WILL BE DIFFICULT AND POSSIBLY DANGEROUS. ANY 
  STRUCTURE FIRE OR WILDFIRE COULD BE DIFFICULT TO SUPPRESS DUE 
  TO THE STRONG WINDS.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 35 MPH ARE EXPECTED
OR GUSTS AS HIGH AS 45 MPH. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.

&&

$$

CAZ507-021400-
/O.CON.KMTR.WI.Y.0006.000000T0000Z-111202T1800Z/
NORTH BAY MOUNTAINS-
641 PM PST THU DEC 1 2011

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST FRIDAY FOR THE
NORTH BAY MOUNTAINS.

* WINDS: STRONG AND GUSTY NORTHEAST WINDS WILL CONTINUE THROUGH
  LATE FRIDAY MORNING. WIND GUSTS UP TO 50 MPH ARE LIKELY OVER
  EXPOSED RIDGES.

* IMPACTS: DOWNED TREES AND BRANCHES MAY CAUSE POWER OUTAGES. 
  LOOSE OBJECTS NOT TIED DOWN MAY BLOW AROUND. DRIVING HIGH 
  PROFILE VEHICLES WILL BE DIFFICULT AND POSSIBLY DANGEROUS. ANY 
  STRUCTURE FIRE OR WILDFIRE COULD BE DIFFICULT TO SUPPRESS DUE 
  TO THE STRONG WINDS. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

A WIND ADVISORY MEANS THAT SUSTAINED WINDS OF 35 MPH ARE EXPECTED
OR GUSTS AS HIGH AS 45 MPH. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION.

&&

$$

DYKEMA

The office that day

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

IssuedProductOfficeCountiesLasted
Dec 2, 1:28 PM PSTWind AdvisoryMTRSan Mateo, Santa Clara, Santa Cruz21 hr

Nearby

Wind Advisories in California, 2011Every wind advisory in 2011

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.