Alert archive / California / Wind Advisories in 2008

Wind Advisory 2, NWS San Francisco Bay Area, CA

January 4, 2008San Mateo County, Santa Clara County, Santa Cruz County, California

NWS San Francisco Bay Area, CA issued this wind advisory at Jan 4, 2008, 2:31 PM PST for San Mateo County, Santa Clara County, Santa Cruz County, California. It took effect at Jan 4, 2008, 4:00 PM PST. It was in force for 5 hr.

The area

The counties it named.

The facts

Issued
Jan 4, 2008, 2:31 PM PST (22:31 UTC)
In effect from
Jan 4, 2008, 4:00 PM PST
Expired
Jan 4, 2008, 9:00 PM PST
In force
5 hr
Issued by
NWS San Francisco Bay Area, CA

Counties San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA

The radar

The San Francisco radar (KMUX), 14 km from the middle of the area, began a volume at 22:31 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, 10.5 hours before the alert went out and 58 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 2008-01-04Temperature 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 2008-01-04The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 433 square meters per square second.1939587897Sfc1 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
618 m above ground
0-6 km bulk shear
56 kt
0-1 km storm-relative helicity
433 m²/s²
0-3 km storm-relative helicity
625 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 042232
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
231 PM PST FRI JAN 4 2008

...STRONG WINDS WILL CONTINUE THROUGH FRIDAY EVENING ACROSS THE
SAN FRANCISCO AND MONTEREY BAY AREAS...

.A POWERFUL STORM SYSTEM CONTINUES TO MOVE THROUGH BAY AREA BRINGING
STRONG WINDS TO NORTHERN AND CENTRAL CALIFORNIA. WINDS OF 20 TO 40
MPH WITH GUSTS TO 50 WILL STILL BE POSSIBLE ALONG THE COAST AND LOWER
HILLS. THE HILLS ABOVE 2000 FEET COULD POSSIBLY GUST TO HURRICANE
FORCE...75 MPH THROUGH FRIDAY EVENING. WINDS WILL DIMINISH DURING
THE NIGHT TIME HOURS.

CAZ514>518-050500-
/O.EXT.KMTR.HW.W.0001.000000T0000Z-080105T0500Z/
MONTEREY BAY...NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND
CARMEL VALLEY-BIG SUR COAST-
SOUTHERN SALINAS VALLEY...ARROYO SECO...AND LAKE SAN ANTONIO-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING
PINNACLES NATIONAL MONUMENT-
231 PM PST FRI JAN 4 2008

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

THE HIGH WIND WARNING IS NOW IN EFFECT UNTIL 9 PM PST THIS
EVENING. 

STRONG GUSTY WINDS WILL STILL BE POSSIBLE THROUGH THE EVENING
HOURS AS A POTENT COLD FRONT CONTINUES TO MOVE THROUGH THE REGION. WINDS
ALONG THE COAST AND VALLEYS WILL CONTINUE TO BE 25 TO 40 MPH WITH
GUSTS TO 60 MPH POSSIBLE. WINDS IN THE HILLS ABOVE 2000 FEET COULD
POSSIBLY GUST TO NEAR HURRICANE FORCE...70 MPH. WINDS WILL
DECREASE LATE FRIDAY EVENING.

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.

$$

CAZ511-512-050500-
/O.NEW.KMTR.WI.Y.0002.080105T0000Z-080105T0500Z/
/O.CON.KMTR.HW.W.0001.000000T0000Z-080105T0000Z/
EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS-
231 PM PST FRI JAN 4 2008

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...
...WIND ADVISORY IN EFFECT UNTIL 9 PM PST THIS EVENING...

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT UNTIL 9 PM PST THIS EVENING. A HIGH
WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS AFTERNOON. 

STRONG GUSTY WINDS WILL STILL BE POSSIBLE THROUGH THE EVENING
HOURS AS A POTENT COLD FRONT CONTINUES TO MOVE THROUGH THE REGION. WINDS
WILL CONTINUE TO BE 25 TO 40 MPH WITH GUSTS TO 65 MPH POSSIBLE.
WINDS IN THE HILLS ABOVE 2000 FEET COULD POSSIBLY GUST TO HURRICANE
FORCE...80 MPH. WINDS WILL DECREASE LATE FRIDAY EVENING.

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.

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

$$

CAZ006-505-507-509-050000-
/O.CON.KMTR.HW.W.0001.000000T0000Z-080105T0000Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
231 PM PST FRI JAN 4 2008

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON. 

STRONG GUSTY WINDS WILL STILL BE POSSIBLE THROUGH THE LATE AFTERNOON
HOURS AS A POTENT COLD FRONT CONTINUES TO MOVE THROUGH THE REGION. WINDS
ALONG THE COAST AND VALLEYS WILL CONTINUE TO BE 25 TO 40 MPH WITH
GUSTS TO 60 MPH POSSIBLE. WINDS IN THE HILLS ABOVE 2000 FEET COULD
POSSIBLY GUST TO NEAR HURRICANE FORCE...70 MPH. WINDS WILL
DECREASE LATE FRIDAY EVENING.

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.

$$

CAZ506-508-510-513-050000-
/O.CON.KMTR.HW.W.0001.000000T0000Z-080105T0000Z/
NORTH BAY INTERIOR VALLEYS-SAN FRANCISCO BAY SHORELINE-
EAST BAY INTERIOR VALLEYS-SANTA CLARA VALLEY...INCLUDING SAN JOSE-
231 PM PST FRI JAN 4 2008

...HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON...

A HIGH WIND WARNING REMAINS IN EFFECT UNTIL 4 PM PST THIS
AFTERNOON. 

STRONG GUSTY WINDS WILL STILL BE POSSIBLE THROUGH THE EVENING
HOURS AS A POTENT COLD FRONT CONTINUES TO MOVE THROUGH THE REGION. WINDS
ALONG THE COAST AND VALLEYS WILL CONTINUE TO BE 25 TO 40 MPH WITH
GUSTS TO 60 MPH POSSIBLE. WINDS WILL DECREASE LATE FRIDAY
EVENING.

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.

$$
1 follow-up statement
000 
WWUS76 KMTR 050506
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
906 PM PST FRI JAN 4 2008

...STRONG WINDS TO CONTINUE THROUGH MIDNIGHT IN THE MOUNTAINS OF MONTEREY
AND SAN BENITO COUNTIES WHILE WINDS WILL DECREASE IN THE EAST BAY
HILLS AND THE VALLEYS...

.THE POWERFUL FRONTAL SYSTEM IS NOW SOUTH AND EAST OF THE
DISTRICT. HOWEVER SOME STRONG WINDS EXIST IMMEDIATELY BEHIND THE
FRONT WHICH WILL AFFECT THE MOUNTAINS OF MONTEREY AND SAN BENITO
COUNTIES UNTIL MIDNIGHT. 

CAZ515-517-518-050800-
/O.EXP.KMTR.HW.W.0001.000000T0000Z-080105T0500Z/
/O.NEW.KMTR.WI.Y.0003.080105T0506Z-080105T0800Z/
BIG SUR COAST-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING
PINNACLES NATIONAL MONUMENT-
906 PM PST FRI JAN 4 2008

...WIND ADVISORY IN EFFECT UNTIL MIDNIGHT PST TONIGHT...
...HIGH WIND WARNING HAS EXPIRED...

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS DOWNGRADED THE
HIGH WIND WARNING TO A WIND ADVISORY...WHICH IS IN EFFECT UNTIL
MIDNIGHT PST TONIGHT. 

STRONG GUSTY WINDS UP TO 50 MPH WILL STILL BE POSSIBLE THROUGH THE
EVENING HOURS IMMEDIATELY FOLLOWING THE PASSAGE OF A POTENT COLD
FRONT. WINDS WILL DECREASE TO BELOW ADVISORY CRITERIA AFTER MIDNIGHT.

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



$$

CAZ514-516-050615-
/O.EXP.KMTR.HW.W.0001.000000T0000Z-080105T0500Z/
MONTEREY BAY...NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND
CARMEL VALLEY-
SOUTHERN SALINAS VALLEY...ARROYO SECO...AND LAKE SAN ANTONIO-
906 PM PST FRI JAN 4 2008

...HIGH WIND WARNING HAS EXPIRED...

THE HIGH WIND WARNING IS NO LONGER IN EFFECT. WINDS HAVE DECREASED
AS THE FRONTAL SYSTEM MOVES FURTHER AWAY FROM THE AREA.



$$

CAZ511-512-050615-
/O.EXP.KMTR.WI.Y.0002.000000T0000Z-080105T0500Z/
EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS-
906 PM PST FRI JAN 4 2008

...WIND ADVISORY HAS EXPIRED...

WINDS WILL CONTINUE TO DECREASE THIS EVENING AS THE STORM SYSTEM
MOVES FURTHER AWAY FROM THE AREA. THEREFORE THE WIND ADVISORY IS
NO LONGER IN EFFECT.



$$

W PI

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 3, 4:56 PM PSTFlash Flood WatchMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more23 hr
Jan 4, 4:17 AM PSTHigh Surf WarningMTRAlameda, Contra Costa, Marin, City and County of San Francisco, San Mateo, Santa Clara and 2 more46 hr
Jan 4, 12:09 PM PSTFlash Flood WarningMTRSanta Cruz4 hr
Jan 4, 12:22 PM PSTFlash Flood WarningMTRMonterey4 hr
Jan 4, 12:25 PM PSTCoastal Flood WarningMTRAlameda, Contra Costa, Marin, City and County of San Francisco, San Mateo, Santa Clara and 2 more24 hr

Nearby

Wind Advisories in California, 2008Every wind advisory in 2008

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.