Alert archive / California / Wind Advisories in 2008

Wind Advisory 3, NWS San Francisco Bay Area, CA

January 4, 20084 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Jan 4, 2008, 9:06 PM PST for 4 counties in California. It was in force for 3 hr.

The area

The counties it named.

The facts

Issued
Jan 4, 2008, 9:06 PM PST (05:06 UTC)
Expired
Jan 5, 2008, 12:00 AM PST
In force
3 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Alameda County, CA, Contra Costa County, CA, Monterey County, CA, San Benito County, CA

The radar

The San Francisco radar (KMUX), 30 km from the middle of the area, began a volume at 05:14 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, 5.1 hours before the alert went out and 89 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 2008-01-05Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 2 joules per kilogram.LCLEL10008507005003002001001 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 2008-01-05The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -147 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
2 J/kg
Mixed-layer CIN
-2 J/kg
Mixed-layer LCL
614 m above ground
0-6 km bulk shear
86 kt
0-1 km storm-relative helicity
-147 m²/s²
0-3 km storm-relative helicity
-107 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 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
1 follow-up statement
000 
WWUS76 KMTR 050806
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1206 AM PST SAT JAN 5 2008

...WIND ADVISORY HAS BEEN ALLOWED TO EXPIRE...

.THE STRONG STORM SYSTEM THAT BROUGHT THE HIGH WINDS HAS MOVED
SOUTH OF THE AREA. THEREFORE THE WIND ADVISORY HAS BEEN ALLOWED TO
EXPIRE.

CAZ515-517-518-050915-
/O.EXP.KMTR.WI.Y.0003.000000T0000Z-080105T0800Z/
BIG SUR COAST-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING
PINNACLES NATIONAL MONUMENT-
1206 AM PST SAT JAN 5 2008

...WIND ADVISORY HAS EXPIRED...

THE WIND ADVISORY IS NO LONGER IN EFFECT. 


$$

STROBIN

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 5, 8:47 AM PSTSpecial Marine WarningMTR58 min
Jan 5, 9:41 AM PSTSpecial Marine WarningMTR64 min
Jan 5, 11:01 AM PSTMarine Weather StatementMTR3 hr
Jan 5, 11:24 AM PSTSpecial Marine WarningMTR51 min

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.