Alert archive / California / Wind Advisories in 2007

Wind Advisory 7, NWS San Francisco Bay Area, CA

December 1, 2007Marin County, Sonoma County, California

NWS San Francisco Bay Area, CA issued this wind advisory at Dec 1, 2007, 8:35 PM PST for Marin County, Sonoma County, California. It took effect at Dec 2, 2007, 10:00 AM PST. It was in force for 23 hr.

The area

The counties it named.

The facts

Issued
Dec 1, 2007, 8:35 PM PST (04:35 UTC)
In effect from
Dec 2, 2007, 10:00 AM PST
Expired
Dec 3, 2007, 8:30 AM PST
In force
23 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Marin County, CA, Sonoma County, CA

The radar

The Sacramento radar (KDAX), 104 km from the middle of the area, began a volume at 04:38 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, 4.6 hours before the alert went out and 84 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 2007-12-02Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 11 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 2007-12-02The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 24 square meters per square second.1939587897117136156Sfc1 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
11 J/kg
Mixed-layer CIN
-7 J/kg
Mixed-layer LCL
1116 m above ground
0-6 km bulk shear
59 kt
0-1 km storm-relative helicity
24 m²/s²
0-3 km storm-relative helicity
50 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 020435
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
835 PM PST SAT DEC 1 2007

...WINDY CONDITIONS ACROSS THE NORTH BAY SUNDAY AND SUNDAY
NIGHT...

.A PACIFIC WEATHER SYSTEM WILL APPROACH THE COAST ON SATURDAY
NIGHT AND BRING STRONG SOUTHERLY WINDS TO THE NORTH BAY BY MIDDAY
SUNDAY. STRONG WINDS WILL CONTINUE SUNDAY NIGHT BEFORE SLOWLY
DIMINISHING ON MONDAY. WINDS ARE EXPECTED TO BE STRONGEST NEAR THE
COAST AND AT ELEVATIONS ABOVE 1000 FEET.

CAZ505-507-021800-
/O.NEW.KMTR.WI.Y.0007.071202T1800Z-071203T1400Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-
835 PM PST SAT DEC 1 2007

...WIND ADVISORY IN EFFECT FROM 10 AM SUNDAY TO 6 AM PST MONDAY
FOR THE COAST AND MOUNTAINS OF THE NORTHERN SAN FRANCISCO BAY
AREA...

THE NATIONAL WEATHER SERVICE IN MONTEREY HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 10 AM SUNDAY TO 6 AM PST
MONDAY FOR THE COAST AND MOUNTAINS OF THE NORTH BAY.

STRONG SOUTHERLY WINDS WILL DEVELOP ON SUNDAY. BY MIDDAY SUNDAY
WINDS OF 20 TO 30 MPH WITH GUSTS TO 50 MPH ARE EXPECTED ALONG THE
COAST OF SONOMA AND MARIN COUNTIES. WIND GUSTS UP TO 50 MPH ARE
ALSO LIKELY AT ELEVATIONS ABOVE 1000 FEET ACROSS THE ENTIRE NORTH
BAY. STRONG AND GUSTY SOUTH WINDS WILL CONTINUE THROUGH SUNDAY
NIGHT BEFORE SLOWLY DIMINISHING ON MONDAY.

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

$$

DYKEMA
5 follow-up statements
000 
WWUS76 KMTR 021302
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
502 AM PST SUN DEC 2 2007

...WINDY CONDITIONS ACROSS THE NORTH BAY SUNDAY AND SUNDAY
NIGHT...

.A PACIFIC WEATHER SYSTEM APPROACHING THE CENTRAL COAST WILL BRING
STRONG SOUTHERLY WINDS TO THE NORTH BAY AREAS MIDDAY TODAY. STRONG
WINDS WILL CONTINUE TONIGHT BEFORE DIMINISHING LATE MONDAY. WINDS
ARE EXPECTED TO BE STRONGEST NEAR THE COAST AND AT ELEVATIONS
ABOVE 1000 FEET.

CAZ505-507-022115-
/O.EXT.KMTR.WI.Y.0007.071202T1800Z-071204T0000Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-
502 AM PST SUN DEC 2 2007

...WIND ADVISORY NOW IN EFFECT FROM 10 AM THIS MORNING TO 4 PM
PST MONDAY...

STRONG SOUTHERLY WINDS WILL DEVELOP IN THE COURSE OF TODAY. BY
MIDDAY WINDS OF 20 TO 30 MPH WITH GUSTS TO 50 MPH ARE EXPECTED
ALONG THE COAST OF SONOMA AND MARIN COUNTIES. WIND GUSTS UP TO 50
MPH ARE ALSO LIKELY AT ELEVATIONS ABOVE 1000 FEET ACROSS THE
ENTIRE NORTH BAY. STRONG AND GUSTY SOUTH WINDS WILL CONTINUE
THROUGH TONIGHT BEFORE DIMINISHING LATE MONDAY.

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

$$
GUDGEL
000 
WWUS76 KMTR 022128
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
128 PM PST SUN DEC 2 2007

...WINDY CONDITIONS ACROSS PORTIONS OF THE NORTH BAY THROUGH
MIDDAY MONDAY...

.A PACIFIC WEATHER SYSTEM WAS PRODUCING STRONG AND GUSTY SOUTH
WINDS ACROSS PORTIONS OF THE NORTH BAY ON SUNDAY AFTERNOON. WINDS
WERE GUSTING AS HIGH AS 40 MPH AT POINT REYES. WINDS ARE EXPECTED
TO INCREASE FURTHER TONIGHT AND REMAIN STRONG AND GUSTY INTO
MONDAY MORNING. STRONGEST WINDS WILL BE NEAR THE OCEAN AND AT
ELEVATIONS ABOVE 1000 FEET. 

CAZ505-507-030500-
/O.EXT.KMTR.WI.Y.0007.000000T0000Z-071203T2000Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-
128 PM PST SUN DEC 2 2007

...WIND ADVISORY NOW IN EFFECT UNTIL 12 PM PST MONDAY...

THE WIND ADVISORY FOR THE NORTH BAY COAST AND MOUNTAINS IS NOW IN
EFFECT UNTIL 12 PM PST MONDAY. SOUTH WINDS ARE EXPECTED TO
INCREASE LATE SUNDAY AND SUNDAY NIGHT AND GUSTS AS HIGH AS 50 MPH
ARE POSSIBLE. WINDS WILL DIMINISH MONDAY AFTERNOON.

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

$$

DYKEMA
000 
WWUS76 KMTR 030356
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
756 PM PST SUN DEC 2 2007

...WINDY CONDITIONS TO CONTINUE ACROSS COASTAL NORTH BAY AND NORTH
BAY MOUNTAINS THROUGH MIDDAY MONDAY...

.AN INTENSE PACIFIC WEATHER SYSTEM WILL CONTINUE TO PRODUCE STRONG
AND GUSTY SOUTH WINDS ACROSS PORTIONS OF THE NORTH BAY INTO
MONDAY. WINDS WILL GUST TO AROUND 45 MPH ALONG THE IMMEDIATE COAST
AND IN THE HILLS. STRONGEST WINDS WILL BE NEAR THE OCEAN AND AT
ELEVATIONS ABOVE 1000 FEET.

CAZ505-507-031500-
/O.CON.KMTR.WI.Y.0007.000000T0000Z-071203T2000Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-
756 PM PST SUN DEC 2 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL 12 PM PST MONDAY...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 12 PM PST MONDAY. 

GUSTY SOUTH WINDS WILL CONTINUE OVERNIGHT AND INTO MONDAY. BE
PREPARED FOR WINDY WEATHER AND TAKE NECESSARY PRECAUTIONS AROUND
YOUR HOME AND WHEN TRAVELING. 

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

$$
000 
WWUS76 KMTR 031111
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
311 AM PST MON DEC 3 2007

...WINDY CONDITIONS CONTINUE ACROSS COASTAL NORTH BAY AND NORTH
BAY MOUNTAINS THROUGH EARLY AFTERNOON TODAY...

CAZ505-507-031915-
/O.CON.KMTR.WI.Y.0007.000000T0000Z-071203T2000Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-
311 AM PST MON DEC 3 2007

...WIND ADVISORY REMAINS IN EFFECT UNTIL NOON PST TODAY...

STRONG SOUTH WINDS WITH GUSTS TO 45 MPH ARE STILL BEING REPORTED
ALONG THE IMMEDIATE COAST AND HIGHER ELEVATIONS OF THE NORTH BAY
EARLY THIS MORNING. THESE STRONG WINDS WILL CONTINUE THROUGH THE EARLY
AFTERNOON BEFORE DECREASING AS THE SURFACE PRESSURE GRADIENT
WEAKENS.

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

$$

MEHLE
000 
WWUS76 KMTR 031630
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
830 AM PST MON DEC 3 2007

...WIND ADVISORY IS CANCELED FOR THE NORTH COAST AND NORTH BAY MOUNTAINS...


CAZ505-507-031730-
/O.CAN.KMTR.WI.Y.0007.000000T0000Z-071203T2000Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-
830 AM PST MON DEC 3 2007

...WIND ADVISORY IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS CANCELED THE
WIND ADVISORY. 

WINDS HAVE DECREASED ACROSS THE NORTH BAY COAST AND MOUNTAINS.
THEREFORE THE WIND ADVISORY HAS BEEN CANCELED.

$$

STROBIN

Nearby

Wind Advisories in California, 2007Every wind advisory in 2007

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.