Alert archive / California / Wind Advisories in 2018

Wind Advisory 2, NWS San Francisco Bay Area, CA

February 9, 2018

NWS San Francisco Bay Area, CA issued this wind advisory at Feb 9, 2018, 12:44 PM PST. It took effect at Feb 10, 2018, 10:00 AM PST. It was in force for 14 hr.

The area

The counties it named.

The facts

Issued
Feb 9, 2018, 12:44 PM PST (20:44 UTC)
In effect from
Feb 10, 2018, 10:00 AM PST
Expired
Feb 11, 2018, 12:00 AM PST
In force
14 hr
Issued by
NWS San Francisco Bay Area, CA

The text

As transmitted.

819 
WWUS76 KMTR 092044
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1244 PM PST Fri Feb 9 2018

...Gusty Offshore Winds over the North Bay Mountains Saturday...

.Increasing offshore winds over the North Bay mountains are
expected on Saturday, primarily from late morning into the early
part of Saturday night. These winds will be strongest over the
tallest ridges and peaks of the northern portions of Sonoma and
Napa county, with peak sustained winds of up to 35 mph and gusts 
of up to 55 mph. The strongest winds are anticipated during the 
late afternoon and evening out of the north to northeast. In 
addition, relative humidity values will drop into the low teens 
and single digits later Saturday and Saturday night, leading to a 
slightly increased fire risk over the impacted areas. 

CAZ507-101045-
/O.NEW.KMTR.WI.Y.0002.180210T1800Z-180211T0800Z/
North Bay Mountains-
Including the cities of Angwin, Lagunitas-Forest Knolls, 
and Woodacre
1244 PM PST Fri Feb 9 2018

...WIND ADVISORY IN EFFECT FROM 10 AM SATURDAY TO MIDNIGHT PST
SATURDAY NIGHT...

The National Weather Service in San Francisco has issued a Wind
Advisory, which is in effect from 10 AM Saturday to midnight PST
Saturday night. 

* TIMING....Late Saturday morning through early Saturday night.
  Winds will peak during late Saturday afternoon through Saturday
  evening. Winds decrease into Sunday.

* WINDS... Peak sustained winds 25 to 35 mph with gusts of up to
  around 55 mph. Winds strongest at highest elevations.

* IMPACTS... Blowing debris, more difficult driving for high
  profile vehicles, downed power lines, and increased fire danger,
  especially in conjunction with very low relative humidity
  values. 


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.

&&

$$
3 follow-up statements
650 
WWUS76 KMTR 101101
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
301 AM PST Sat Feb 10 2018

...Gusty Offshore Winds over the North Bay Mountains Saturday...

.Increasing offshore winds over the North Bay mountains are
expected today, primarily from late morning into early tonight. 
These winds will be strongest over the tallest ridges and peaks of
the northern portions of Sonoma and Napa county, with peak 
sustained winds of up to 35 mph and gusts of up to 55 mph. The 
strongest winds are anticipated during the late afternoon and 
evening out of the north to northeast. In addition, relative 
humidity values will drop into the low teens and single digits 
later today and tonight, leading to a slightly increased fire risk
over the impacted areas.

CAZ507-110500-
/O.CON.KMTR.WI.Y.0002.180210T1800Z-180211T0800Z/
North Bay Mountains-
Including the cities of Angwin, Lagunitas-Forest Knolls, 
and Woodacre
301 AM PST Sat Feb 10 2018

...WIND ADVISORY REMAINS IN EFFECT FROM 10 AM THIS MORNING TO
MIDNIGHT PST TONIGHT...

a Wind Advisory remains in effect from 10 AM this morning to
midnight PST tonight. 

* TIMING....Late this morning through early tonight. Winds will
  peak during late afternoon through the evening. Winds decrease 
  into Sunday. 

* WINDS... Peak sustained winds 25 to 35 mph with gusts of up to 
  around 55 mph. Winds strongest at highest elevations. 

* IMPACTS... Blowing debris, more difficult driving for high 
  profile vehicles, downed power lines, and increased fire 
  danger, especially in conjunction with very low relative 
  humidity values. 

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.

&&

$$
880 
WWUS76 KMTR 102044
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1244 PM PST Sat Feb 10 2018

...Gusty Offshore Winds over the North Bay Mountains Through Late
Tonight...

.Offshore winds over the North Bay Mountains are expected to
increase this afternoon and into late tonight. These winds will 
be strongest over the tallest ridges and peaks of the northern 
portions of Sonoma and Napa county, with peak sustained winds of 
up to 35 mph and gusts of up to 55 mph. The strongest winds are 
anticipated during the late afternoon and evening out of the north
to northeast. In addition, relative humidity values will drop 
into the low teens and single digits later today and tonight, 
leading to a slightly increased fire risk over the impacted areas.

CAZ507-110800-
/O.CON.KMTR.WI.Y.0002.000000T0000Z-180211T0800Z/
North Bay Mountains-
Including the cities of Angwin, Lagunitas-Forest Knolls, 
and Woodacre
1244 PM PST Sat Feb 10 2018

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

A Wind Advisory remains in effect until midnight PST tonight. 

* TIMING...This afternoon through late tonight. Winds will peak 
  this evening. Winds will then diminish early Sunday.
 
* WINDS...Peak sustained winds of 25 to 35 mph with gusts of up 
  to around 55 mph. Winds strongest at highest elevations. 

* IMPACTS...Blowing debris, more difficult driving for high 
  profile vehicles, downed power lines, and increased fire danger,
  especially in conjunction with very low relative humidity 
  values. 

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.

&&

$$
483 
WWUS76 KMTR 110751
NPWMTR

URGENT - WEATHER MESSAGE
National Weather Service San Francisco Bay Area
1151 PM PST Sat Feb 10 2018

CAZ507-110900-
/O.EXP.KMTR.WI.Y.0002.000000T0000Z-180211T0800Z/
North Bay Mountains-
Including the cities of Angwin, Lagunitas-Forest Knolls, 
and Woodacre
1151 PM PST Sat Feb 10 2018

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

The Wind Advisory for the North Bay Mountains will expire at 
midnight PST tonight. Wind speeds in the North Bay peaked earlier
on Saturday evening and winds are expected to gradually subside 
overnight. 

$$

Nearby

Wind Advisories in California, 2018Every wind advisory in 2018

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text.