Alert archive / California / Wind Advisories in 2009

Wind Advisory 3, NWS San Francisco Bay Area, CA

March 1, 20099 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Mar 1, 2009, 10:20 PM PST for 9 counties in California. It was in force for 29 hr.

The area

The counties it named.

The facts

Issued
Mar 1, 2009, 10:20 PM PST (06:20 UTC)
Expired
Mar 3, 2009, 3:01 AM PST
In force
29 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, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA

The radar

The San Francisco radar (KMUX), 48 km from the middle of the area, began a volume at 06:23 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, 6.3 hours before the alert went out and 22 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 2009-03-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 1 joules per kilogram.LCLLFCEL10008507005003002001001 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 2009-03-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 332 square meters per square second.1939587897117136Sfc1 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
1 J/kg
Mixed-layer CIN
-71 J/kg
Mixed-layer LCL
754 m above ground
0-6 km bulk shear
69 kt
0-1 km storm-relative helicity
332 m²/s²
0-3 km storm-relative helicity
193 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.

000 
WWUS76 KMTR 020620
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1020 PM PST SUN MAR 1 2009


CAZ505-507-511-512-517-021200-
/O.NEW.KMTR.WI.Y.0003.090302T0620Z-090302T1200Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
1020 PM PST SUN MAR 1 2009

...WIND ADVISORY IN EFFECT UNTIL 4 AM PST MONDAY FOR COASTAL NORTH
BAY INCLUDING POINT REYES...THE NORTH BAY MOUNTAINS AND EAST BAY HILLS
PLUS THE SANTA CRUZ MOUNTAINS AND THE COASTAL MOUNTAINS OF
MONTEREY COUNTY...

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED
A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 4 AM PST MONDAY. 

A STRONG COLD FRONT OFF THE COAST WILL KEEP VERY GUSTY WINDS OVER
MUCH OF OUR AREA. SUSTAINED SOUTHERLY WINDS OF 15 TO 30 MPH WITH
LOCAL GUSTS TO OVER 50 MPH ARE EXPECTED TO CONTINUE UNTIL EARLY
MONDAY MORNING. STRONGEST WINDS WILL BE IN SOUTH-FACING AREAS AND
LOCATIONS THAT ARE PRONE TO WIND FUNNELING IN FROM THE SOUTH SUCH
AS A NORTH-SOUTH VALLEY.

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

$$

BELL
5 follow-up statements
000 
WWUS76 KMTR 021002
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
202 AM PST MON MAR 2 2009

CAZ517-021115-
/O.CAN.KMTR.WI.Y.0003.000000T0000Z-090302T1200Z/
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
202 AM PST MON MAR 2 2009

...WIND ADVISORY IS CANCELED...

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS
CANCELED THE WIND ADVISORY FOR THE SANTA LUCIA AND LOS PADRES MOUNTAINS. 

WINDS HAVE DIMINISHED EARLY THIS MORNING AND ARE NOT EXPECTED TO
INCREASE BACK TO ADVISORY LEVELS. PERSONS IN THE AREA CAN EXPECT
SOUTHERLY WINDS OF 10 TO 20 MPH WITH LOCAL GUSTS TO 30 MPH.

$$

CAZ505-507-511-512-022300-
/O.EXT.KMTR.WI.Y.0003.000000T0000Z-090303T1400Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
202 AM PST MON MAR 2 2009

...WIND ADVISORY NOW IN EFFECT UNTIL 6 AM PST TUESDAY...

THE WIND ADVISORY IS NOW IN EFFECT UNTIL 6 AM PST TUESDAY FOR THE
COASTAL NORTH BAY INCLUDING POINT REYES...THE NORTH BAY MOUNTAINS PLUS
EAST BAY HILLS AND THE SANTA CRUZ MOUNTAINS.

A STRONG SURFACE PRESSURE GRADIENT ALONG WITH STRONG SOUTHWESTERLY
WINDS ALOFT WILL KEEP VERY GUSTY WINDS OVER MUCH OF OUR AREA
THROUGH TUESDAY MORNING. ALTHOUGH THERE MAY BE OCCASIONAL BREAKS
IN THE WINDS...EXPECT PERIODS OF SUSTAINED SOUTHERLY WINDS BETWEEN
15 TO 30 MPH WITH LOCAL GUSTS TO OVER 50 MPH. THE STRONGEST WINDS
WILL BE IN SOUTH-FACING AREAS AND LOCATIONS THAT ARE PRONE TO
WIND FUNNELING IN FROM THE SOUTH SUCH AS A NORTH-SOUTH ORIENTATED
VALLEY. DUE TO RECENT RAINFALL WHICH HAS LOOSED THE SOIL...THE
WIND WILL LIKELY CAUSE SOME TREES TO BE UPROOTED.

A WIND ADVISORY MEANS THAT GUSTS OF OVER 45 MPH ARE EXPECTED.
WINDS THIS STRONG CAN MAKE DRIVING DIFFICULT...ESPECIALLY FOR
HIGH PROFILE VEHICLES. USE EXTRA CAUTION. DRIVERS SHOULD ALSO BE
ALERT FOR TREES THAT HAVE FALLEN ON ROADWAYS.

$$

BELL
000 
WWUS76 KMTR 022256
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
256 PM PST MON MAR 2 2009

CAZ505-507-511-512-031400-
/O.CON.KMTR.WI.Y.0003.000000T0000Z-090303T1400Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
256 PM PST MON MAR 2 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY...

THE WIND ADVISORY CONTINUES UNTIL 6 AM PST TUESDAY FOR THE
COASTAL NORTH BAY INCLUDING POINT REYES...THE NORTH BAY MOUNTAINS
PLUS EAST BAY HILLS AND THE SANTA CRUZ MOUNTAINS.

A STRONG SURFACE PRESSURE GRADIENT AND STRONG SOUTHWESTERLY WINDS
ALOFT WILL CONTINUE TO PRODUCE VERY GUSTY WINDS OVER THE ADVISORY
AREA THROUGH TONIGHT. ALTHOUGH THERE MAY BE BRIEF PERIODS WHEN
THE WINDS HAVE DECREASED SOME...EXPECT MOSTLY PROLONGED PERIODS
OF SUSTAINED SOUTHERLY WINDS FROM 15 TO 30 MPH WITH LOCAL GUSTS TO
OVER 50 MPH. THE STRONGEST WINDS WILL BE IN SOUTH- FACING AREAS
AND LOCATIONS PRONE TO WIND FUNNELING IN FROM THE SOUTH SUCH AS A
NORTH- SOUTH ORIENTATED VALLEY. DUE TO THE SIGNIFICANT RECENT
RAINFALL WHICH HAS SATURATED THE SOIL...THE WIND WILL LIKELY CAUSE
SOME TREES TO BE BLOWN OVER.

THIS WIND ADVISORY MEANS THAT GUSTS OF OVER 45 MPH ARE EXPECTED
DURING THE ADVISORY PERIOD. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION. DRIVERS SHOULD ALSO BE ALERT FOR TREES THAT HAVE FALLEN
ON ROADWAYS.

$$

WJK
000 
WWUS76 KMTR 030020
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
420 PM PST MON MAR 2 2009

CAZ006-508-509-030830-
/O.EXA.KMTR.WI.Y.0003.000000T0000Z-090303T1400Z/
SAN FRANCISCO-SAN FRANCISCO BAY SHORELINE-
SAN FRANCISCO PENINSULA COAST-
420 PM PST MON MAR 2 2009

...WIND ADVISORY IN EFFECT UNTIL 6 AM PST TUESDAY...

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED
A WIND ADVISORY...WHICH IS IN EFFECT UNTIL 6 AM PST TUESDAY. 

AT 4 PM WINDS AT THE GOLDEN GATE BRIDGE WERE GUSTING TO 41 MPH
WHILE AT SAN FRANCISCO AIRPORT THE WINDS WERE GUSTING TO 46 MPH. 
A STRONG SURFACE PRESSURE GRADIENT AND STRONG SOUTHWESTERLY WINDS
ALOFT WILL CONTINUE TO PRODUCE VERY GUSTY WINDS OVER THE ADVISORY
AREA THROUGH TUESDAY MORNING. ALTHOUGH THERE MAY BE BRIEF PERIODS
WHEN THE WINDS HAVE DECREASED SOME...EXPECT MOSTLY PROLONGED
PERIODS OF SUSTAINED SOUTHERLY WINDS FROM 15 TO 30 MPH WITH LOCAL
GUSTS TO OVER 45 MPH. THE STRONGEST WINDS WILL BE ALONG THE SAN
FRANCISCO PENINSULA SIDE OF THE BAY. DUE TO THE SIGNIFICANT RECENT
RAINFALL WHICH HAS SATURATED THE SOIL...THE WIND WILL LIKELY CAUSE
SOME TREES TO BE BLOWN OVER.

THIS WIND ADVISORY MEANS THAT GUSTS OF OVER 45 MPH ARE EXPECTED
DURING THE ADVISORY PERIOD. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION. DRIVERS SHOULD ALSO BE ALERT FOR TREES THAT HAVE FALLEN
ON ROADWAYS.

$$

CAZ505-507-511-512-030830-
/O.CON.KMTR.WI.Y.0003.000000T0000Z-090303T1400Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
420 PM PST MON MAR 2 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST TUESDAY. 

A STRONG SURFACE PRESSURE GRADIENT AND STRONG SOUTHWESTERLY WINDS
ALOFT WILL CONTINUE TO PRODUCE VERY GUSTY WINDS OVER THE ADVISORY
AREA THROUGH TONIGHT. ALTHOUGH THERE MAY BE BRIEF PERIODS WHEN
THE WINDS HAVE DECREASED SOME...EXPECT MOSTLY PROLONGED PERIODS
OF SUSTAINED SOUTHERLY WINDS FROM 15 TO 30 MPH WITH LOCAL GUSTS
TO OVER 50 MPH. THE STRONGEST WINDS WILL BE IN SOUTH- FACING
AREAS AND LOCATIONS PRONE TO WIND FUNNELING IN FROM THE SOUTH
SUCH AS A NORTH- SOUTH ORIENTATED VALLEY. DUE TO THE SIGNIFICANT
RECENT RAINFALL WHICH HAS SATURATED THE SOIL...THE WIND WILL
LIKELY CAUSE SOME TREES TO BE BLOWN OVER.

THIS WIND ADVISORY MEANS THAT GUSTS OF OVER 45 MPH ARE EXPECTED
DURING THE ADVISORY PERIOD. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION. DRIVERS SHOULD ALSO BE ALERT FOR TREES THAT HAVE FALLEN
ON ROADWAYS.

$$

WJK/W PI
000 
WWUS76 KMTR 030814
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1214 AM PST TUE MAR 3 2009

CAZ505-030915-
/O.CAN.KMTR.WI.Y.0003.000000T0000Z-090303T1400Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
1214 AM PST TUE MAR 3 2009

...WIND ADVISORY IS CANCELED FOR THE COASTAL NORTH BAY INCLUDING
POINT REYES...

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS
CANCELED THE WIND ADVISORY FOR THE COASTAL NORTH BAY.

WINDS HAVE GRADUALLY DIMINISHED THROUGH THE EVENING AND ARE NO
LONGER EXPECTED TO REACH ADVISORY LEVELS. PERSON TRAVELING IN THE
AREA CAN STILL EXPECT TO SEE SOUTHERLY WINDS OF 15 TO 25 MPH WITH
LOCAL GUSTS TO 35 MPH THROUGH EARLY TUESDAY MORNING.

$$

CAZ507-511-512-031400-
/O.CON.KMTR.WI.Y.0003.000000T0000Z-090303T1400Z/
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
1214 AM PST TUE MAR 3 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS
MORNING FOR THE NORTH BAY MOUNTAIN AND EAST BAY HILLS PLUS THE
SANTA CRUZ MOUNTAINS...

A STRONG SURFACE PRESSURE GRADIENT AND STRONG SOUTHWESTERLY WINDS
ALOFT WILL CONTINUE TO PRODUCE VERY GUSTY WINDS OVER THE ADVISORY
AREA TONIGHT. ALTHOUGH THERE MAY BE BRIEF PERIODS WHEN THE WINDS
BRIEFLY DECREASE...EXPECT MOSTLY PROLONGED PERIODS OF SUSTAINED
SOUTHERLY WINDS FROM 15 TO 30 MPH WITH LOCAL GUSTS TO OVER 50 MPH.
THE STRONGEST WINDS WILL BE IN SOUTH- FACING AREAS AND LOCATIONS
PRONE TO WIND FUNNELING IN FROM THE SOUTH SUCH AS A NORTH- SOUTH
ORIENTATED VALLEY. DUE TO THE SIGNIFICANT RECENT RAINFALL WHICH
HAS SATURATED THE SOIL...THE WIND WILL LIKELY CAUSE SOME TREES TO
BE BLOWN OVER.

THIS WIND ADVISORY MEANS THAT GUSTS OF OVER 45 MPH ARE EXPECTED
DURING THE ADVISORY PERIOD. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION. DRIVERS SHOULD ALSO BE ALERT FOR TREES THAT HAVE FALLEN
ON ROADWAYS.

$$

CAZ006-508-509-031400-
/O.CON.KMTR.WI.Y.0003.000000T0000Z-090303T1400Z/
SAN FRANCISCO-SAN FRANCISCO BAY SHORELINE-
SAN FRANCISCO PENINSULA COAST-
1214 AM PST TUE MAR 3 2009

...WIND ADVISORY REMAINS IN EFFECT UNTIL 6 AM PST EARLY THIS
MORNING FOR THE SAN FRANCISCO BAY SHORELINE AND SAN FRANCISCO
PENINSULA COAST...

AT MIDNIGHT SEVERAL SENSORS AROUND THE SAN FRANCISCO BAY SHORELINE
AND THE PENINSULA COAST WERE CONTINUING TO GUST TO AROUND 40 MPH.
THESE STRONG WINDS ARE EXPECTED TO CONTINUE INTO THE MORNING WITH
LOCAL GUSTS UP TO 45 MPH. THE STRONGEST WINDS WILL BE ALONG THE
SAN FRANCISCO PENINSULA SIDE OF THE BAY. DUE TO THE SIGNIFICANT
RECENT RAINFALL WHICH HAS SATURATED THE SOIL...THE WIND WILL
LIKELY CAUSE SOME TREES TO BE BLOWN OVER.

THIS WIND ADVISORY MEANS THAT GUSTS OF OVER 45 MPH ARE EXPECTED
DURING THE ADVISORY PERIOD. WINDS THIS STRONG CAN MAKE DRIVING
DIFFICULT...ESPECIALLY FOR HIGH PROFILE VEHICLES. USE EXTRA
CAUTION. DRIVERS SHOULD ALSO BE ALERT FOR TREES THAT HAVE FALLEN
ON ROADWAYS.

$$

WJK/W PI/BELL
000 
WWUS76 KMTR 031101
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
301 AM PST TUE MAR 3 2009


CAZ006-507>509-511-512-031215-
/O.CAN.KMTR.WI.Y.0003.000000T0000Z-090303T1400Z/
SAN FRANCISCO-NORTH BAY MOUNTAINS-SAN FRANCISCO BAY SHORELINE-
SAN FRANCISCO PENINSULA COAST-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
301 AM PST TUE MAR 3 2009

...WIND ADVISORY IS CANCELED...

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

ALTHOUGH GUSTY SOUTHERLY WINDS CAN BE EXPECTED TODAY THEY ARE NO
LONGER FORECAST TO REACH ADVISORY CRITERIA IN MOST LOCATIONS.
THERE WILL STILL BE A FEW ISOLATED SPOTS SUCH AS NEAR LOS
GATOS PLUS LOCAL SPOTS IN THE EAST BAY HILLS AND DIABLO RANGE
INCLUDING MALLORY RIDGE AND BLACK DIAMOND THAT WILL OCCASIONALLY
GUST TO AROUND 40 MPH.

$$

BELL

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 2, 5:26 AM PSTFlash Flood WarningMTRMonterey3 hr
Mar 2, 2:25 PM PSTSmall Craft Advisory for Rough BarMTR58 hr

Nearby

Wind Advisories in California, 2009Every wind advisory in 2009

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.