Alert archive / California / Wind Advisories in 2016

Wind Advisory 1, NWS San Francisco Bay Area, CA

January 21, 2016San Mateo County, Santa Clara County, Santa Cruz County, California

NWS San Francisco Bay Area, CA issued this wind advisory at Jan 21, 2016, 12:20 PM PST for San Mateo County, Santa Clara County, Santa Cruz County, California. It took effect at Jan 22, 2016, 4:00 PM PST. It was in force for 12 hr.

The area

The counties it named.

The facts

Issued
Jan 21, 2016, 12:20 PM PST (20:20 UTC)
In effect from
Jan 22, 2016, 4:00 PM PST
Expired
Jan 23, 2016, 4:00 AM PST
In force
12 hr
Issued by
NWS San Francisco Bay Area, CA

Counties San Mateo County, CA, Santa Clara County, CA, Santa Cruz County, CA

The radar

The San Francisco radar (KMUX), 14 km from the middle of the area, began a volume at 20:17 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, 8.3 hours before the alert went out and 58 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 2016-01-21Temperature 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 12:00Z on 2016-01-21The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 65 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
1079 m above ground
0-6 km bulk shear
25 kt
0-1 km storm-relative helicity
65 m²/s²
0-3 km storm-relative helicity
96 m²/s²
Significant tornado parameter
0.0
Supercell composite
0.0

Open this sounding in Storm Lab

The text

As transmitted.

482 
WWUS76 KMTR 212020
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
1220 PM PST THU JAN 21 2016

...STRONG AND GUSTY WINDS FRIDAY AFTERNOON AND FRIDAY NIGHT...

.GUSTY SOUTH TO SOUTHWEST WINDS WILL DEVELOP LATE TONIGHT INTO
FRIDAY MORNING AS A COLD FRONT MOVES THROUGH THE REGION. WINDS
WILL INCREASE FURTHER FRIDAY AFTERNOON AND FRIDAY NIGHT.  WINDS
WILL BE STRONGEST OVER THE NORTH BAY MOUNTAINS...EAST BAY HILLS
AND SANTA CRUZ MOUNTAINS. ELSEWHERE... BREEZY CONDITIONS WITH
LOCALLY STRONGER GUSTS WILL BE POSSIBLE.

CAZ507-511-512-220600-
/O.NEW.KMTR.WI.Y.0001.160123T0000Z-160123T1200Z/
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
1220 PM PST THU JAN 21 2016

...WIND ADVISORY IN EFFECT FROM 4 PM FRIDAY TO 4 AM PST
SATURDAY...

THE NATIONAL WEATHER SERVICE IN SAN FRANCISCO HAS ISSUED A WIND
ADVISORY...WHICH IS IN EFFECT FROM 4 PM FRIDAY TO 4 AM PST
SATURDAY. 

* TIMING...WINDS WILL INCREASE LATE THURSDAY NIGHT AND PEAK FRIDAY
  NIGHT. WINDS WILL SUBSIDE ON SATURDAY.

* WINDS...SUSTAINED SOUTH TO SOUTHWEST WINDS OF 15 TO 30 MPH WITH
  GUSTS UP TO 50 MPH.

* IMPACTS...GIVEN THE RECENT RAINS AND SATURATED SOILS TREES MAY
  TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES
  AND LEAD TO POWER OUTAGES. 


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.

&&

$$
5 follow-up statements
188 
WWUS76 KMTR 220308
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
708 PM PST THU JAN 21 2016

...STRONG AND GUSTY WINDS FRIDAY AFTERNOON AND FRIDAY NIGHT...

.GUSTY SOUTH TO SOUTHWEST WINDS WILL DEVELOP LATE TONIGHT INTO
FRIDAY MORNING AS A COLD FRONT MOVES THROUGH THE REGION. WINDS
WILL INCREASE FURTHER FRIDAY AFTERNOON AND FRIDAY NIGHT.  WINDS
WILL BE STRONGEST OVER THE NORTH BAY MOUNTAINS...EAST BAY HILLS
AND SANTA CRUZ MOUNTAINS. ELSEWHERE... BREEZY CONDITIONS WITH
LOCALLY STRONGER GUSTS WILL BE POSSIBLE.

CAZ507-511-512-221400-
/O.CON.KMTR.WI.Y.0001.160123T0000Z-160123T1200Z/
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
708 PM PST THU JAN 21 2016

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM FRIDAY TO 4 AM PST
SATURDAY...

* TIMING...WINDS WILL INCREASE LATE TONIGHT AND PEAK FRIDAY
  NIGHT. WINDS WILL SUBSIDE ON SATURDAY.

* WINDS...SUSTAINED SOUTH TO SOUTHWEST WINDS OF 15 TO 30 MPH 
  WITH GUSTS UP TO 50 MPH. 

* IMPACTS...GIVEN THE RECENT RAINS AND SATURATED SOILS TREES MAY 
  TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER LINES 
  AND LEAD TO POWER OUTAGES. 

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.

&&

$$
835 
WWUS76 KMTR 221205
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
405 AM PST FRI JAN 22 2016

...STRONG AND GUSTY WINDS THIS AFTERNOON INTO EARLY SATURDAY
MORNING...

.GUSTY SOUTH TO SOUTHWEST WINDS WILL INCREASE FURTHER THIS
AFTERNOON AND EVENING IN WAKE OF A SECOND FRONTAL PASSAGE. WINDS
WILL BE STRONGEST OVER THE NORTH BAY MOUNTAINS...EAST BAY HILLS
AND SANTA CRUZ MOUNTAINS. ELSEWHERE...BREEZY CONDITIONS WITH
LOCALLY STRONGER GUSTS WILL BE POSSIBLE.

CAZ507-511-512-222300-
/O.CON.KMTR.WI.Y.0001.160123T0000Z-160123T1200Z/
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
405 AM PST FRI JAN 22 2016

...WIND ADVISORY REMAINS IN EFFECT FROM 4 PM THIS AFTERNOON TO
4 AM PST SATURDAY...

* TIMING...WINDS WILL INCREASE THROUGH THIS AFTERNOON AND PEAK
  TONIGHT. WINDS WILL SUBSIDE ON SATURDAY.

* WINDS...SUSTAINED SOUTH TO SOUTHWEST WINDS OF 15 TO 30 MPH 
  WITH GUSTS UP TO 50 MPH. 

* IMPACTS...GIVEN THE RECENT RAINS AND SATURATED SOILS...TREES
  MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER
  LINES AND LEAD TO ISOLATED POWER OUTAGES.

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.

&&

$$
078 
WWUS76 KMTR 222320
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
320 PM PST FRI JAN 22 2016

...STRONG AND GUSTY WINDS IN THE HILLS LATE FRIDAY AFTERNOON INTO
EARLY SATURDAY MORNING...

.GUSTY SOUTH TO SOUTHWEST WINDS WILL INCREASE LATE FRIDAY AFTERNOON
AND EVENING. WINDS WILL BE STRONGEST ACROSS THE HIGHER ELEVATIONS
OF THE NORTH BAY MOUNTAINS...EAST BAY HILLS AND SANTA CRUZ
MOUNTAINS. ELSEWHERE...BREEZY CONDITIONS ARE EXPECTED.

CAZ507-511-512-231200-
/O.CON.KMTR.WI.Y.0001.160123T0000Z-160123T1200Z/
NORTH BAY MOUNTAINS-EAST BAY HILLS AND DIABLO RANGE-
SANTA CRUZ MOUNTAINS-
320 PM PST FRI JAN 22 2016

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

* TIMING...WINDS WILL INCREASE LATE FRIDAY AFTERNOON AND PEAK
  FRIDAY NIGHT. WINDS WILL SUBSIDE BY SATURDAY MORNING. 

* WINDS...SUSTAINED SOUTH TO SOUTHWEST WINDS OF 15 TO 30 MPH 
  WITH GUSTS UP TO 50 MPH. 

* IMPACTS...GIVEN THE RECENT RAINS AND SATURATED SOILS...TREES 
  MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER 
  LINES AND LEAD TO ISOLATED 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.

&&

$$
066 
WWUS76 KMTR 230330
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
730 PM PST FRI JAN 22 2016

CAZ511-512-230430-
/O.CAN.KMTR.WI.Y.0001.000000T0000Z-160123T1200Z/
EAST BAY HILLS AND DIABLO RANGE-SANTA CRUZ MOUNTAINS-
730 PM PST FRI JAN 22 2016

...WIND ADVISORY IS CANCELLED...

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

BREEZY CONDITIONS ARE EXPECTED IN THE HILLS FRIDAY NIGHT WITH
WIND GUSTS UP TO 35 MPH POSSIBLE. HOWEVER...WINDS ARE EXPECTED TO
REMAIN BELOW ADVISORY LEVELS. THEREFORE...THE WIND ADVISORY IS
CANCELLED. 

$$

CAZ507-231200-
/O.CON.KMTR.WI.Y.0001.000000T0000Z-160123T1200Z/
NORTH BAY MOUNTAINS-
730 PM PST FRI JAN 22 2016

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

* TIMING...WINDS WILL INCREASE FRIDAY EVENING AND PEAK AROUND
  MIDNIGHT FRIDAY NIGHT. WINDS WILL SUBSIDE BY SATURDAY MORNING.

* WINDS...SUSTAINED SOUTH TO SOUTHWEST WINDS OF 15 TO 30 MPH 
  WITH GUSTS UP TO 50 MPH. 

* IMPACTS...GIVEN THE RECENT RAINS AND SATURATED SOILS...TREES 
  MAY TOPPLE. FALLING TREES AND TREE LIMBS MAY TAKE DOWN POWER 
  LINES AND LEAD TO ISOLATED 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.

&&

$$
148 
WWUS76 KMTR 231159
NPWMTR

URGENT - WEATHER MESSAGE
NATIONAL WEATHER SERVICE SAN FRANCISCO CA
359 AM PST SAT JAN 23 2016

CAZ507-231300-
/O.EXP.KMTR.WI.Y.0001.000000T0000Z-160123T1200Z/
NORTH BAY MOUNTAINS-
359 AM PST SAT JAN 23 2016

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

WHILE BREEZY AND GUSTY WINDS WILL CONTINUE THROUGH THIS
MORNING OVER THE NORTH BAY MOUNTAINS...WIND SPEEDS ARE FORECAST TO
DIMINISH AND FALL BELOW ADVISORY LEVELS.

$$

The office that day

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

IssuedProductOfficeCountiesLasted
Jan 21, 5:23 AM PSTHigh Surf AdvisoryMTRMarin, Monterey, City and County of San Francisco, San Mateo, Santa Cruz, Sonoma65 hr
Jan 21, 8:29 AM PSTCoastal Flood AdvisoryMTRAlameda, Contra Costa, Marin, Monterey, City and County of San Francisco, San Mateo and 3 more29 hr
Jan 21, 2:41 PM PSTSmall Craft Advisory for Rough BarMTR63 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.