Alert archive / California / Wind Advisories in 2016

Wind Advisory 7, NWS San Francisco Bay Area, CA

April 24, 20169 counties in California

NWS San Francisco Bay Area, CA issued this wind advisory at Apr 24, 2016, 2:25 AM PDT for 9 counties in California. It took effect at Apr 24, 2016, 3:00 PM PDT. It was in force for 9 hr.

The area

The counties it named.

The facts

Issued
Apr 24, 2016, 2:25 AM PDT (09:25 UTC)
In effect from
Apr 24, 2016, 3:00 PM PDT
Expired
Apr 25, 2016, 12:00 AM PDT
In force
9 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, San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA, Sonoma County, CA

The radar

The San Francisco radar (KMUX), 48 km from the middle of the area, began a volume at 09:23 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, 9.4 hours before the alert went out and 22 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 2016-04-24Temperature 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 2016-04-24The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity -61 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
0 J/kg
Mixed-layer CIN
No buoyant parcel
Mixed-layer LCL
1323 m above ground
0-6 km bulk shear
32 kt
0-1 km storm-relative helicity
-61 m²/s²
0-3 km storm-relative helicity
-42 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

733 
WWUS76 KMTR 240925
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
225 AM PDT SUN APR 24 2016

...LOCALLY WINDY LATE SUNDAY AFTERNOON AND EVENING...

.A DRY COLD FRONT WILL SWEEP ACROSS THE REGION ON SUNDAY
AFTERNOON. BEHIND THE COLD FRONT LOCALLY STRONG AND GUSTY
NORTHWEST WINDS WILL DEVELOP BY LATE AFTERNOON. WINDS ARE EXPECTED
TO REACH THEIR PEAK INTENSITY ON SUNDAY EVENING BEFORE GRADUALLY
DECREASING AFTER MIDNIGHT. STRONGEST WINDS WILL BE NEAR THE
COAST...BUT GUSTY WINDS WILL ALSO OCCUR IN THE HILLS. BLUSTERY
CONDITIONS ARE EXPECTED ONCE AGAIN ON MONDAY AFTERNOON.

CAZ006-505-508-509-530-242200-
/O.NEW.KMTR.WI.Y.0007.160424T2200Z-160425T0700Z/
SAN FRANCISCO-
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...SAN FRANCISCO...TAMALPAIS-HOMESTEAD...
SAUSALITO...OAKLAND...FREMONT...HAYWARD...DALY CITY...BERKELEY...
PACIFICA...SEASIDE...MONTEREY...MARINA
225 AM PDT SUN APR 24 2016

...WIND ADVISORY IN EFFECT FROM 3 PM THIS AFTERNOON TO MIDNIGHT
PDT TONIGHT...

THE NATIONAL WEATHER SERVICE SAN FRANCISCO BAY AREA HAS ISSUED A
WIND ADVISORY...WHICH IS IN EFFECT FROM 3 PM THIS AFTERNOON TO
MIDNIGHT PDT TONIGHT.

* TIMING...WINDS WILL INCREASE BY MID AFTERNOON SUNDAY AND BECOME
  STRONG AND GUSTY BY LATE AFTERNOON. WINDS WILL THEIR PEAK
  INTENSITY SUNDAY EVENING AND THEN GRADUALLY DECREASE AFTER
  MIDNIGHT. 

* LOCATION...COASTAL AREAS OF THE SAN FRANCISCO BAY AREA.
  ALSO...SOUTHERN MONTEREY BAY AND THE BIG SUR COAST.

* WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS OF 40 TO 50
  MPH. 

* IMPACTS...DOWNED TREES AND POWER LINES. POSSIBLE POWER OUTAGES.

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.

&&

$$
3 follow-up statements
576 
WWUS76 KMTR 240931 AAA
NPWMTR

URGENT - WEATHER MESSAGE...UPDATED
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
231 AM PDT SUN APR 24 2016

...LOCALLY WINDY LATE SUNDAY AFTERNOON AND EVENING...

.A DRY COLD FRONT WILL SWEEP ACROSS THE REGION ON SUNDAY
AFTERNOON. BEHIND THE COLD FRONT LOCALLY STRONG AND GUSTY
NORTHWEST WINDS WILL DEVELOP BY LATE AFTERNOON. WINDS ARE
EXPECTED TO REACH THEIR PEAK INTENSITY ON SUNDAY EVENING BEFORE
GRADUALLY DECREASING AFTER MIDNIGHT. STRONGEST WINDS WILL BE NEAR
THE COAST...BUT GUSTY WINDS WILL ALSO OCCUR IN THE HILLS.
BLUSTERY CONDITIONS ARE EXPECTED ONCE AGAIN ON MONDAY AFTERNOON.

CAZ006-505-508-509-530-242200-
/O.CON.KMTR.WI.Y.0007.160424T2200Z-160425T0700Z/
SAN FRANCISCO-
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...SAN FRANCISCO...TAMALPAIS-HOMESTEAD...
SAUSALITO...OAKLAND...FREMONT...HAYWARD...DALY CITY...BERKELEY...
PACIFICA...SEASIDE...MONTEREY...MARINA
231 AM PDT SUN APR 24 2016

...WIND ADVISORY REMAINS IN EFFECT FROM 3 PM THIS AFTERNOON TO
MIDNIGHT PDT TONIGHT...

* TIMING...WINDS WILL INCREASE BY MID AFTERNOON SUNDAY AND BECOME
  STRONG AND GUSTY BY LATE AFTERNOON. WINDS WILL REACH THEIR PEAK
  INTENSITY SUNDAY EVENING AND THEN GRADUALLY DECREASE AFTER
  MIDNIGHT.

* LOCATION...COASTAL AREAS OF THE SAN FRANCISCO BAY AREA. ALSO...
  SOUTHERN MONTEREY BAY AND THE BIG SUR COAST. 

* WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS OF 40 TO 50 
  MPH. 

* IMPACTS...DOWNED TREES AND POWER LINES. POSSIBLE POWER OUTAGES.

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.

&&

$$
334 
WWUS76 KMTR 242132
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
232 PM PDT SUN APR 24 2016

...LOCALLY WINDY THIS AFTERNOON AND EVENING...

.A DRY COLD FRONT WILL SWEEP ACROSS THE REGION THIS AFTERNOON.
BEHIND THE COLD FRONT LOCALLY STRONG AND GUSTY NORTHWEST WINDS
WILL DEVELOP. WINDS WILL REACH THEIR PEAK INTENSITY THIS EVENING
BEFORE GRADUALLY DECREASING AFTER MIDNIGHT. STRONGEST WINDS WILL
BE NEAR THE COAST...BUT GUSTY WINDS WILL ALSO OCCUR IN THE HILLS.
BLUSTERY CONDITIONS ARE EXPECTED ONCE AGAIN ON MONDAY AFTERNOON.

CAZ006-505-508-509-530-250630-
/O.CON.KMTR.WI.Y.0007.160424T2200Z-160425T0700Z/
SAN FRANCISCO-
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...SAN FRANCISCO...TAMALPAIS-HOMESTEAD...
SAUSALITO...OAKLAND...FREMONT...HAYWARD...DALY CITY...BERKELEY...
PACIFICA...SEASIDE...MONTEREY...MARINA
232 PM PDT SUN APR 24 2016

...WIND ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT PDT TONIGHT...

* TIMING...WINDS WILL BECOME STRONG AND GUSTY BY LATE AFTERNOON.
  WINDS WILL REACH THEIR PEAK INTENSITY SUNDAY EVENING AND THEN
  GRADUALLY DECREASE AFTER MIDNIGHT.

* LOCATION...COASTAL AREAS OF THE SAN FRANCISCO BAY AREA. ALSO...
   SOUTHERN MONTEREY BAY AND THE BIG SUR COAST. 

* WINDS...NORTHWEST WINDS OF 20 TO 30 MPH WITH GUSTS OF 40 TO 50 
  MPH. 

* IMPACTS...DOWNED TREES AND POWER LINES. POSSIBLE POWER OUTAGES.

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.

&&

$$
679 
WWUS76 KMTR 250658
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1158 PM PDT SUN APR 24 2016

CAZ006-505-508-509-530-250800-
/O.EXP.KMTR.WI.Y.0007.000000T0000Z-160425T0700Z/
SAN FRANCISCO-
COASTAL NORTH BAY INCLUDING POINT REYES NATIONAL SEASHORE-
SAN FRANCISCO BAY SHORELINE-SAN FRANCISCO PENINSULA COAST-
SOUTHERN MONTEREY BAY AND BIG SUR COAST-
INCLUDING THE CITIES OF...SAN FRANCISCO...TAMALPAIS-HOMESTEAD...
SAUSALITO...OAKLAND...FREMONT...HAYWARD...DALY CITY...BERKELEY...
PACIFICA...SEASIDE...MONTEREY...MARINA
1158 PM PDT SUN APR 24 2016

...WIND ADVISORY WILL EXPIRE AT MIDNIGHT PDT TONIGHT...

NORTHWEST WINDS HAVE BEEN GRADUALLY DECREASING OVER THE PAST FEW
HOURS AND ARE FORECAST TO CONTINUE TO DECREASE OVERNIGHT. WIND
SPEEDS ARE NOW BELOW ADVISORY LEVELS AT NEARLY ALL LOCATIONS.
THEREFORE...THE WIND ADVISORY WILL BE ALLOWED TO EXPIRE AT
MIDNIGHT PDT.

NORTHWEST WINDS WILL INCREASE ONCE AGAIN ON MONDAY
AFTERNOON BUT ARE NOT EXPECTED TO BE AS STRONG AS ON SUNDAY. 

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Apr 23, 6:27 PM PDTSmall Craft Advisory for Rough BarMTR17 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.