Alert archive / California / Wind Advisories in 2017

Wind Advisory 7, NWS San Francisco Bay Area, CA

January 31, 20177 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Jan 31, 2017, 2:08 AM PST for 7 counties in California. It took effect at Feb 1, 2017, 10:00 PM PST. It was in force for 11 hr.

The area

The counties it named.

The facts

Issued
Jan 31, 2017, 2:08 AM PST (10:08 UTC)
In effect from
Feb 1, 2017, 10:00 PM PST
Expired
Feb 2, 2017, 8:44 AM PST
In force
11 hr
Issued by
NWS San Francisco Bay Area, CA

Counties 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), 19 km from the middle of the area, began a volume at 10:05 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, 10.1 hours before the alert went out and 50 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 2017-01-31Temperature 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 00:00Z on 2017-01-31The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -11 square meters per square second.193958Sfc1 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
2510 m above ground
0-6 km bulk shear
31 kt
0-1 km storm-relative helicity
-11 m²/s²
0-3 km storm-relative helicity
7 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

460 
WWUS76 KMTR 311008
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
208 AM PST TUE JAN 31 2017

...GUSTY SOUTHERLY WINDS RETURN ON THURSDAY...

CAZ505-507-509-511-512-517-518-528>530-010400-
/O.NEW.KMTR.WI.Y.0007.170202T1100Z-170203T1100Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
EAST BAY HILLS AND THE DIABLO RANGE-SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY
INCLUDING PINNACLES NATIONAL PARK-
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...TAMALPAIS-HOMESTEAD...SAUSALITO...
ANGWIN...LAGUNITAS-FOREST KNOLLS...WOODACRE...PACIFICA...
BLACKHAWK...SCOTTS VALLEY...BOULDER CREEK...DAY VALLEY...
SALINAS...SANTA CRUZ...WATSONVILLE...LIVE OAK...SEASIDE...
MONTEREY...MARINA
208 AM PST TUE JAN 31 2017

...WIND ADVISORY IN EFFECT FROM 3 AM THURSDAY TO 3 AM PST
FRIDAY...

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 3 AM THURSDAY TO 3 AM PST
FRIDAY. 

* TIMING...THURSDAY INTO THURSDAY NIGHT

* WINDS...SOUTHERLY WINDS OF 15 TO 30 MPH WITH LOCAL GUSTS TO OVER
  40 MPH IN LOWER ELEVATION LOCATIONS. GUSTS TO OVER 50 MPH FOR
  HIGHER ELEVATIONS

* IMPACTS...POTENTIAL FOR DOWNED TREES AND POWER LINES PLUS
  DIFFICULT DRIVING CONDITIONS

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
5 follow-up statements
800 
WWUS76 KMTR 312118
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
118 PM PST TUE JAN 31 2017

...GUSTY SOUTHERLY WINDS RETURN LATE WEDNESDAY NIGHT INTO
THURSDAY...

CAZ505-507-509-511-512-517-518-528>530-011200-
/O.EXT.KMTR.WI.Y.0007.170202T0600Z-170203T1100Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
EAST BAY HILLS AND THE DIABLO RANGE-SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY
INCLUDING PINNACLES NATIONAL PARK-
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...TAMALPAIS-HOMESTEAD...SAUSALITO...
ANGWIN...LAGUNITAS-FOREST KNOLLS...WOODACRE...PACIFICA...
BLACKHAWK...SCOTTS VALLEY...BOULDER CREEK...DAY VALLEY...
SALINAS...SANTA CRUZ...WATSONVILLE...LIVE OAK...SEASIDE...
MONTEREY...MARINA
118 PM PST TUE JAN 31 2017

...WIND ADVISORY NOW IN EFFECT FROM 10 PM WEDNESDAY TO 3 AM PST
FRIDAY...

* TIMING...WEDNESDAY NIGHT INTO EARLY FRIDAY MORNING

* WINDS...SOUTHERLY WINDS OF 15 TO 30 MPH WITH LOCAL GUSTS TO 
  OVER 40 MPH IN LOWER ELEVATION LOCATIONS. GUSTS TO OVER 50 MPH 
  FOR HIGHER ELEVATIONS. 

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR DRIVERS OF HIGH PROFILE VEHICLES. SINCE THE SOILS ARE 
  SATURATED...THERE IS A HEIGHTENED POTENTIAL FOR DOWNED TREES 
  AND POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
605 
WWUS76 KMTR 011000
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
200 AM PST WED FEB 1 2017

...GUSTY SOUTHERLY WINDS RETURN TONIGHT THROUGH LATE THURSDAY
NIGHT...

CAZ505-507-509-511-512-517-518-528>530-020400-
/O.CON.KMTR.WI.Y.0007.170202T0600Z-170203T1100Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
EAST BAY HILLS AND THE DIABLO RANGE-SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY
INCLUDING PINNACLES NATIONAL PARK-
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...TAMALPAIS-HOMESTEAD...SAUSALITO...
ANGWIN...LAGUNITAS-FOREST KNOLLS...WOODACRE...PACIFICA...
BLACKHAWK...SCOTTS VALLEY...BOULDER CREEK...DAY VALLEY...
SALINAS...SANTA CRUZ...WATSONVILLE...LIVE OAK...SEASIDE...
MONTEREY...MARINA
200 AM PST WED FEB 1 2017

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

* TIMING...TONIGHT INTO EARLY FRIDAY MORNING

* WINDS...SOUTHERLY WINDS OF 15 TO 30 MPH WITH LOCAL GUSTS TO 
  OVER 40 MPH IN LOWER ELEVATION LOCATIONS. GUSTS TO OVER 50 MPH 
  FOR HIGHER ELEVATIONS. 

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR DRIVERS OF HIGH PROFILE VEHICLES. SINCE THE SOILS ARE 
  SATURATED...THERE IS A HEIGHTENED POTENTIAL FOR DOWNED TREES 
  AND POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
739 
WWUS76 KMTR 012152
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
152 PM PST WED FEB 1 2017

...GUSTY SOUTHERLY WINDS RETURN TONIGHT THROUGH LATE THURSDAY
NIGHT...

CAZ505-507-509-511-512-517-518-528>530-021200-
/O.CON.KMTR.WI.Y.0007.170202T0600Z-170203T1100Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
EAST BAY HILLS AND THE DIABLO RANGE-SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY
INCLUDING PINNACLES NATIONAL PARK-
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...TAMALPAIS-HOMESTEAD...SAUSALITO...
ANGWIN...LAGUNITAS-FOREST KNOLLS...WOODACRE...PACIFICA...
BLACKHAWK...SCOTTS VALLEY...BOULDER CREEK...DAY VALLEY...
SALINAS...SANTA CRUZ...WATSONVILLE...LIVE OAK...SEASIDE...
MONTEREY...MARINA
152 PM PST WED FEB 1 2017

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

* TIMING...TONIGHT INTO EARLY FRIDAY MORNING

* WINDS...SOUTHERLY WINDS OF 15 TO 30 MPH WITH LOCAL GUSTS TO 
  OVER 40 MPH IN LOWER ELEVATION LOCATIONS. GUSTS TO OVER 50 MPH 
  FOR HIGHER ELEVATIONS. 

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR DRIVERS OF HIGH PROFILE VEHICLES. SINCE THE SOILS ARE 
  SATURATED...THERE IS A HEIGHTENED POTENTIAL FOR DOWNED TREES 
  AND POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
187 
WWUS76 KMTR 021138
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
338 AM PST THU FEB 2 2017

...GUSTY SOUTHERLY WINDS THROUGH TONIGHT...

CAZ505-507-509-511-512-517-518-528>530-022145-
/O.CON.KMTR.WI.Y.0007.000000T0000Z-170203T1100Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
EAST BAY HILLS AND THE DIABLO RANGE-SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY
INCLUDING PINNACLES NATIONAL PARK-
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...TAMALPAIS-HOMESTEAD...SAUSALITO...
ANGWIN...LAGUNITAS-FOREST KNOLLS...WOODACRE...PACIFICA...
BLACKHAWK...SCOTTS VALLEY...BOULDER CREEK...DAY VALLEY...
SALINAS...SANTA CRUZ...WATSONVILLE...LIVE OAK...SEASIDE...
MONTEREY...MARINA
338 AM PST THU FEB 2 2017

...WIND ADVISORY REMAINS IN EFFECT UNTIL 3 AM PST FRIDAY...

* TIMING...TODAY THROUGH EARLY FRIDAY MORNING

* WINDS...SOUTHWESTERLY WINDS OF 15 TO 30 MPH WITH LOCAL GUSTS TO
  OVER 40 MPH IN LOWER ELEVATION LOCATIONS. GUSTS TO OVER 50 MPH
  FOR HIGHER ELEVATIONS.

* IMPACTS...GUSTY WINDS WILL MAKE DRIVING DIFFICULT...ESPECIALLY 
  FOR DRIVERS OF HIGH PROFILE VEHICLES. SINCE THE SOILS ARE 
  SATURATED...THERE IS A HEIGHTENED POTENTIAL FOR DOWNED TREES 
  AND POWER OUTAGES. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
936 
WWUS76 KMTR 021644
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA
844 AM PST THU FEB 2 2017

CAZ505-507-509-511-512-517-518-528>530-021745-
/O.CAN.KMTR.WI.Y.0007.000000T0000Z-170203T1100Z/
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY MOUNTAINS-SAN FRANCISCO PENINSULA COAST-
EAST BAY HILLS AND THE DIABLO RANGE-SANTA CRUZ MOUNTAINS-
SANTA LUCIA MOUNTAINS AND LOS PADRES NATIONAL FOREST-
MOUNTAINS OF SAN BENITO COUNTY AND INTERIOR MONTEREY COUNTY
INCLUDING PINNACLES NATIONAL PARK-
NORTHERN SALINAS VALLEY/HOLLISTER VALLEY AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...TAMALPAIS-HOMESTEAD...SAUSALITO...
ANGWIN...LAGUNITAS-FOREST KNOLLS...WOODACRE...PACIFICA...
BLACKHAWK...SCOTTS VALLEY...BOULDER CREEK...DAY VALLEY...
SALINAS...SANTA CRUZ...WATSONVILLE...LIVE OAK...SEASIDE...
MONTEREY...MARINA
844 AM PST THU FEB 2 2017

...WIND ADVISORY IS CANCELLED...

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

WIND SPEEDS HAVE FALLEN BELOW ADVISORY CRITERIA ACROSS THE REGION
BEHIND A FRONTAL PASSAGE THIS MORNING. WHILE WIDESPREAD STRONG
WINDS ARE NO LONGER ANTICIPATED, BREEZY TO LOCALLY GUSTY WINDS
WILL REMAIN POSSIBLE NEAR THE COAST AND IN THE COASTAL RANGES
THROUGH EARLY FRIDAY MORNING.

$$

RGASS

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 31, 2:32 AM PSTGale WatchMTR12 hr
Jan 31, 2:32 AM PSTSmall Craft AdvisoryMTR48 hr
Jan 31, 2:32 PM PSTGale WarningMTR42 hr

Nearby

Wind Advisories in California, 2017Every wind advisory in 2017

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.