Alert archive / California / Wind Advisories in 2014

Wind Advisory 2, NWS San Francisco Bay Area, CA

February 27, 20148 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Feb 27, 2014, 11:58 AM PST for 8 counties in California. It took effect at Feb 27, 2014, 10:00 PM PST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Feb 27, 2014, 11:58 AM PST (19:58 UTC)
In effect from
Feb 27, 2014, 10:00 PM PST
Expired
Feb 28, 2014, 10:00 AM PST
In force
12 hr
Issued by
NWS San Francisco Bay Area, CA

Counties City and County of San Francisco, CA, Marin County, CA, Monterey County, CA, San Benito County, CA, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA

The radar

The San Francisco radar (KMUX), 28 km from the middle of the area, began a volume at 19:59 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, 8.0 hours before the alert went out and 43 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 2014-02-27Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 319 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 12:00Z on 2014-02-27The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 63 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
319 J/kg
Mixed-layer CIN
-10 J/kg
Mixed-layer LCL
606 m above ground
0-6 km bulk shear
27 kt
0-1 km storm-relative helicity
63 m²/s²
0-3 km storm-relative helicity
91 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.

026 
WWUS76 KMTR 271958
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
1158 AM PST THU FEB 27 2014

...STRONG AND GUSTY SOUTHEAST WINDS ARE EXPECTED ALONG THE
COASTLINE AND THROUGH THE EAST BAY HILLS AS WELL AS NORTHERN
SALINAS VALLEY LATER TONIGHT INTO FRIDAY MORNING...

CAZ507-518-272100-
/O.CAN.KMTR.HW.A.0001.140228T0900Z-140301T1200Z/
NORTH BAY MOUNTAINS-
MOUNTAINS OF SAN BENITO AND INTERIOR MONTEREY COUNTY INCLUDING
PINNACLES NATIONAL PARK-
1158 AM PST THU FEB 27 2014

...HIGH WIND WATCH IS CANCELLED...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
CANCELLED THE HIGH WIND WATCH. 

* WINDS: SOUTHERLY WIND GUSTS TO 35 MPH WILL BE POSSIBLE LATE
  TONIGHT INTO FRIDAY MORNING.

$$

CAZ505-509-511-512-517-529-530-281200-
/O.UPG.KMTR.HW.A.0001.140228T0900Z-140301T1200Z/
/O.NEW.KMTR.WI.Y.0002.140228T0600Z-140228T1800Z/
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
1158 AM PST THU FEB 27 2014

...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS
EVENING TO 10 AM PST FRIDAY. THE HIGH WIND WATCH IS NO LONGER IN
EFFECT. 

* TIMING: FROM 10 PM TONIGHT THROUGH 10 AM FRIDAY MORNING.

* WINDS: SOUTH WINDS BETWEEN 20 TO 30 MPH WITH GUSTS TO 45 MPH.
  OCCASIONAL GUSTS TO 55 MPH WILL BE POSSIBLE...ESPECIALLY RIGHT
  ALONG THE COAST.

* IMPACTS: STRONG WINDS IN COMBINATION WITH ALREADY SATURATED
  GROUNDS WILL LIKELY TOPPLE TREES AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$

CAZ006-528-281200-
/O.NEW.KMTR.WI.Y.0002.140228T0600Z-140228T1800Z/
SAN FRANCISCO-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
1158 AM PST THU FEB 27 2014

...WIND ADVISORY IN EFFECT FROM 10 PM THIS EVENING TO 10 AM PST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN THE SAN FRANCISCO BAY AREA HAS
ISSUED A WIND ADVISORY...WHICH IS IN EFFECT FROM 10 PM THIS
EVENING TO 10 AM PST FRIDAY. 

* TIMING: FROM 10 PM TONIGHT THROUGH 10 AM FRIDAY MORNING.

* WINDS: SOUTH WINDS BETWEEN 20 TO 30 MPH WITH GUSTS TO 45 MPH.
  OCCASIONAL GUSTS TO 55 MPH WILL BE POSSIBLE...ESPECIALLY RIGHT
  ALONG THE COAST.

* IMPACTS: STRONG WINDS IN COMBINATION WITH ALREADY SATURATED
  GROUNDS WILL LIKELY TOPPLE TREES AND POWER LINES.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
2 follow-up statements
710 
WWUS76 KMTR 281143
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
343 AM PST FRI FEB 28 2014

...STRONG AND GUSTY SOUTHEAST WINDS ARE EXPECTED ALONG THE
COASTLINE AND THROUGH THE EAST BAY HILLS AS WELL AS NORTHERN
SALINAS VALLEY THROUGH FRIDAY MORNING...

CAZ006-505-509-511-512-517-528>530-281800-
/O.CON.KMTR.WI.Y.0002.000000T0000Z-140228T1800Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
343 AM PST FRI FEB 28 2014

...WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING...

A WIND ADVISORY REMAINS IN EFFECT UNTIL 10 AM PST THIS MORNING FOR
ALL COASTAL AREAS AS WELL AS THE HIGHER TERRAIN FROM THE EAST BAY
HILLS SOUTHWARD AND THE NORTHERN SALINAS VALLEY. 

* TIMING: THROUGH 10 AM FRIDAY MORNING.

* WINDS: SOUTH WINDS BETWEEN 20 TO 30 MPH WITH GUSTS TO 45 MPH. 
  OCCASIONAL GUSTS TO 55 MPH WILL BE POSSIBLE...ESPECIALLY RIGHT 
  ALONG THE COAST. 

* IMPACTS: STRONG WINDS IN COMBINATION WITH ALREADY SATURATED 
  GROUNDS WILL LIKELY TOPPLE TREES AND POWER LINES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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.

&&

$$
666 
WWUS76 KMTR 281757
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
957 AM PST FRI FEB 28 2014

CAZ006-505-509-511-512-517-528>530-281900-
/O.EXP.KMTR.WI.Y.0002.000000T0000Z-140228T1800Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO PENINSULA COAST-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
957 AM PST FRI FEB 28 2014

...WIND ADVISORY WILL EXPIRE AT 10 AM PST THIS MORNING...

WIND SPEEDS HAVE DECREASED ACROSS THE AREA SO THE WIND ADVISORY
WILL BE ALLOWED TO EXPIRE AT 10 AM THIS MORNING.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Feb 27, 2:43 AM PSTGale WarningMTR55 hr
Feb 27, 3:36 AM PSTHigh Wind WatchMTRMarin, Monterey, San Benito, San Mateo, Santa Clara, Santa Cruz and 1 more8 hr
Feb 27, 12:11 PM PSTHigh Surf AdvisoryMTRMonterey, San Mateo, Santa Cruz51 hr
Feb 27, 12:24 PM PSTFlash Flood WatchMTRMonterey46 hr

Nearby

Wind Advisories in California, 2014Every wind advisory in 2014

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.