Alert archive / California / Wind Advisories in 2016

Wind Advisory 5, NWS San Francisco Bay Area, CA

March 6, 201611 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Mar 6, 2016, 4:57 AM PST for 11 counties in California. It took effect at Mar 6, 2016, 4:00 PM PST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Mar 6, 2016, 4:57 AM PST (12:57 UTC)
In effect from
Mar 6, 2016, 4:00 PM PST
Expired
Mar 7, 2016, 4:00 AM PST
In force
12 hr
Issued by
NWS San Francisco Bay Area, CA

Counties Alameda County, CA, City and County of San Francisco, CA, Contra Costa County, CA, Marin County, CA, Monterey County, CA, Napa 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), 46 km from the middle of the area, began a volume at 12:58 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, 1.0 hours before the alert went out and 24 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 2016-03-06Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 323 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 2016-03-06The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 17 square meters per square second.19395878Sfc1 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
323 J/kg
Mixed-layer CIN
-1 J/kg
Mixed-layer LCL
948 m above ground
0-6 km bulk shear
35 kt
0-1 km storm-relative helicity
17 m²/s²
0-3 km storm-relative helicity
32 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

971 
WWUS76 KMTR 061257
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
457 AM PST SUN MAR 6 2016

...ANOTHER ROUND OF STRONG AND GUSTY WINDS LATE SUNDAY AND SUNDAY
NIGHT...

.THE NEXT PACIFIC WEATHER SYSTEM WILL APPROACH THE NORTHERN
CALIFORNIA COAST LATE TODAY AND THEN TRACK SOUTHEAST ALONG THE
COAST OVERNIGHT TONIGHT. THIS SYSTEM IS EXPECTED TO GENERATE
STRONG AND GUSTY SOUTH TO SOUTHWEST WINDS FROM LATE THIS AFTERNOON
THROUGH LATE TONIGHT.

CAZ006-505>513-516>518-528>530-070200-
/O.NEW.KMTR.WI.Y.0005.160307T0000Z-160307T1200Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS-
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-
EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-SANTA CLARA VALLEY...INCLUDING SAN JOSE-
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 PARK-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
457 AM PST SUN MAR 6 2016

...WIND ADVISORY IN EFFECT FROM 4 PM THIS AFTERNOON TO 4 AM PST
MONDAY FOR THE ENTIRE SAN FRANCISCO BAY AREA AND MONTEREY BAY AREA...

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO BAY AREA HAS ISSUED
A WIND ADVISORY...WHICH IS IN EFFECT FROM 4 PM THIS AFTERNOON TO 4
AM PST MONDAY.

* TIMING...WINDS WILL INCREASE LATE SUNDAY AFTERNOON AND CONTINUE
  STRONG AND GUSTY THROUGH MUCH OF SUNDAY NIGHT. STRONGEST WINDS
  ARE EXPECTED DURING THE EVENING HOURS.

* WINDS...SOUTH TO SOUTHWEST WINDS OF 20 TO 30 MPH ARE EXPECTED
  ALONG WITH GUSTS OF BETWEEN 40 AND 50 MPH.

* IMPACTS...WINDS THIS STRONG CAN BRING DOWN DROUGHT-STRESSED
  TREES AND TREE LIMBS. POWER OUTAGES ARE POSSIBLE.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
2 follow-up statements
890 
WWUS76 KMTR 062343
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
343 PM PST SUN MAR 6 2016

...ANOTHER ROUND OF STRONG AND GUSTY WINDS TONIGHT...

.THE NEXT PACIFIC WEATHER SYSTEM WILL APPROACH THE NORTHERN
CALIFORNIA COAST TONIGHT THEN TRACK SOUTHEAST ALONG THE COAST
EARLY MONDAY. THIS SYSTEM IS EXPECTED TO GENERATE STRONG AND
GUSTY SOUTH TO SOUTHWEST WINDS FROM LATE THIS AFTERNOON THROUGH
LATE TONIGHT.

CAZ006-505>513-516>518-528>530-071200-
/O.CON.KMTR.WI.Y.0005.160307T0000Z-160307T1200Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS-
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-
EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-SANTA CLARA VALLEY...INCLUDING SAN JOSE-
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 PARK-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
343 PM PST SUN MAR 6 2016

...WIND ADVISORY REMAINS IN EFFECT UNTIL 4 AM PST MONDAY...

* TIMING...WINDS INCREASING TONIGHT.

* WINDS...SOUTH TO SOUTHWEST WINDS INCREASING TO 20 TO 30 MPH
  WITH GUSTS UP TO 40 AND 50 MPH.

* IMPACTS...WINDS THIS STRONG CAN BRING DOWN DROUGHT-STRESSED 
  TREES AND TREE LIMBS. POWER OUTAGES ARE POSSIBLE. 

PRECAUTIONARY/PREPAREDNESS ACTIONS...

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

&&

$$
725 
WWUS76 KMTR 071134
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
334 AM PST MON MAR 7 2016

CAZ006-505>513-516>518-528>530-071245-
/O.EXP.KMTR.WI.Y.0005.000000T0000Z-160307T1200Z/
SAN FRANCISCO-
COASTAL NORTH BAY...INCLUDING POINT REYES NATIONAL SEASHORE-
NORTH BAY INTERIOR VALLEYS-NORTH BAY MOUNTAINS-
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-
EAST BAY INTERIOR VALLEYS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-SANTA CLARA VALLEY...INCLUDING SAN JOSE-
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 PARK-
NORTHERN SALINAS VALLEY...HOLLISTER VALLEY...AND CARMEL VALLEY-
NORTHERN MONTEREY BAY-SOUTHERN MONTEREY BAY AND BIG SUR COAST-
334 AM PST MON MAR 7 2016

...WIND ADVISORY WILL EXPIRE AT 4 AM PST EARLY THIS MORNING...

THE WEATHER SYSTEM THAT BROUGHT LOCALLY STRONG AND GUSTY WINDS TO
THE SAN FRANCISCO AND MONTEREY BAY AREAS LATE SUNDAY AND SUNDAY
NIGHT WAS MOVING OUT OF THE AREA EARLY MONDAY MORNING. AS OF 3:30
AM PST...WINDS HAD DECREASED BELOW ADVISORY LEVELS IN NEARLY ALL
LOCATIONS. THEREFORE...THE WIND ADVISORY WILL BE ALLOWED TO EXPIRE
AT 4 AM PST.

WINDS WILL SWITCH FROM SOUTHWEST TO NORTHWEST BY THIS AFTERNOON
AND THEN NORTHWEST WINDS WILL INCREASE THIS AFTERNOON...BUT MAINLY
NEAR THE OCEAN. LOCAL WIND GUSTS OF UP TO 35 MPH ARE POSSIBLE NEAR
THE OCEAN BY MID AFTERNOON. BUT WINDS ARE EXPECT TO REMAIN BELOW
ADVISORY LEVELS FOR THE REST OF THE DAY. WINDS WILL DECREASE IN
ALL AREAS THIS EVENING.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Mar 5, 4:17 PM PSTAreal Flood AdvisoryMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more6 hr
Mar 5, 9:07 PM PSTSmall Craft AdvisoryMTR54 hr
Mar 5, 9:59 PM PSTFlash Flood WarningMTRNapa3 hr
Mar 5, 10:14 PM PSTFlash Flood WatchMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 4 more5 hr
Mar 5, 10:27 PM PSTFlash Flood WarningMTRSanta Cruz4 hr
Mar 5, 10:41 PM PSTFlash Flood WarningMTRAlameda4 hr
Mar 5, 10:50 PM PSTFlash Flood WarningMTRSonoma4 hr
Mar 5, 11:46 PM PSTFlash Flood WarningMTRSanta Cruz3 hr
Mar 6, 12:12 AM PSTFlash Flood WarningMTRSanta Cruz108 min
Mar 6, 2:24 AM PSTGale WarningMTR23 hr
Mar 6, 2:24 AM PSTSmall Craft AdvisoryMTR13 hr
Mar 6, 5:16 AM PSTFlash Flood WatchMTRAlameda, Contra Costa, Marin, Monterey, Napa, San Benito and 5 more23 hr

Nearby

Wind Advisories in California, 2016Every wind advisory in 2016

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.